Pin CI to specific Arturo nightly (#179 )

* Pin CI to same nightly as test runner
Tournament: change the unicode medium vertical bars back to ascii vertical bars (#216 )
2025-10-29 20:52:41 -07:00 · 2025-10-29 19:04:33 -07:00 · 2025-10-29 12:22:22 -07:00 · 2025-10-29 10:56:01 -07:00 · 2025-10-28 16:49:38 -07:00 · 2025-10-28 16:43:07 -07:00
224 changed files with 1960 additions and 1352 deletions
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -18,12 +18,18 @@ jobs:
      - name: Install dependencies
        run: |
          sudo apt-get update
-          sudo apt-get install libgtk-3-dev libwebkit2gtk-4.1-dev libmpfr-dev
+          sudo apt-get install libmpfr6 libwebkit2gtk-4.1-0 libpcre3 

      - name: Install Arturo
-        uses: arturo-lang/arturo-action@main
-        with: 
-          token: ${{ github.token }}
+        run: |
+          curl -L -o arturo.zip https://github.com/arturo-lang/nightly/releases/download/2025-10-14/arturo-nightly.2025-10-13-amd64-linux-full.zip
+          sudo unzip arturo.zip -d /usr/local/bin/
+          rm arturo.zip
+          sudo chmod +x /usr/local/bin/arturo
+          sudo ldconfig
+
+      - name: Install Unitt testing framework
+        run: arturo -p install unitt 3.0.0

      - name: Verify all exercises
        run: bin/verify-exercises
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 .DS_Store
 bin/configlet
 bin/configlet.exe
+exercises/**/.unitt/
--- a/bin/add-exercise
+++ b/bin/add-exercise
@@ -46,14 +46,25 @@ fi
 ./bin/fetch-configlet
 ./bin/configlet create --practice-exercise "${slug}" --author "${author}" --difficulty "${difficulty}"

-cat << END_TESTER > "exercises/practice/${slug}/tester.art"
-import.version:2.0.1 {unitt}!
+cat << END_UNITT_TOML > "exercises/practice/${slug}/unitt.toml"
+# unitt.toml - Configuration for unitt

-runTests.failFast findTests "tests"
+path = "tests"
+suffix = ".art"
+END_UNITT_TOML
+
+cat << END_TESTER > "exercises/practice/${slug}/tester.art"
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"
+
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
 END_TESTER

 cat << END_TEST > "exercises/practice/${slug}/tests/test-${slug}.art"
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/${slug}}!

 $(curl --silent "https://raw.githubusercontent.com/exercism/problem-specifications/main/exercises/${slug}/canonical-data.json")
--- a/bin/verify-exercises
+++ b/bin/verify-exercises
@@ -12,6 +12,11 @@

 set -eo pipefail

+usage() {
+    echo "usage: ${0##*/} [-h] [-v] [exercise-slug]"
+    echo "where: -v is verbose: show test output even for passing tests"
+}
+
 die() { echo "$*" >&2; exit 1; }

 required_tool() {
@@ -22,7 +27,7 @@ required_tool() {
 required_tool jq
 required_tool arturo

-copy_example_or_examplar_to_solution() {
+copy_example_or_exemplar_to_solution() {
    jq -c '[.files.solution, .files.exemplar // .files.example] | transpose | map({src: .[1], dst: .[0]}) | .[]' .meta/config.json \
    | while read -r src_and_dst; do
        cp "$(jq -r '.src' <<< "${src_and_dst}")" "$(jq -r '.dst' <<< "${src_and_dst}")"
@@ -30,13 +35,32 @@ copy_example_or_examplar_to_solution() {
 }

 unskip_tests() {
-    jq -r '.files.test[]' .meta/config.json | while read -r test_file; do
-        sed -i -E 's/(test|it).skip/\1/g' "${test_file}"
-    done
+    while read -r test_file; do
+        perl -i -pe 's/(test|it).skip/\1/g' "${test_file}"
+    done < <(
+        jq -r '.files.test[]' .meta/config.json
+    )
 }

 run_tests() {
-    arturo tester.art
+    set +e
+    test_output=$(arturo tester.art 2>&1)
+    result=$?
+    set -e
+
+    # unitt v3 bug workaround
+    if [[ $result -eq 0 && $test_output == "Uncaught error in tests"* ]]; then
+        result=1
+    fi
+
+    if [[ $result -eq 0 ]]; then
+        $verbose && echo "${test_output}" && echo
+        echo "All tests passed!"
+        return 0
+    else     
+        echo "${test_output}"
+        return 1
+    fi
 }

 verify_exercise() {
@@ -55,7 +79,7 @@ verify_exercise() {
        cp -r "${dir}/." "${tmp_dir}"
        cd "${tmp_dir}"

-        copy_example_or_examplar_to_solution
+        copy_example_or_exemplar_to_solution
        unskip_tests
        run_tests
    )
@@ -77,5 +101,15 @@ verify_exercises() {
    ((count > 0)) || die 'no matching exercises found!'
 }

+verbose=false
+while getopts :hv opt; do
+    case $opt in
+        h) usage; exit 0;;
+        v) verbose=true ;;
+        *) usage; exit 1;;
+    esac
+done
+shift $((OPTIND - 1))
+
 exercise_slug="${1:-*}"
 verify_exercises "${exercise_slug}"
--- a/docs/TESTS.md
+++ b/docs/TESTS.md
@@ -2,9 +2,8 @@

 The Arturo track uses the [Unitt unit-testing package][unitt] for all exercise tests.
 This package provides a testng framework supporting both modern RSpec-inspired syntax and legacy XUnit-inspired syntax.
-Arturo will automatically download and install this package when you run the tests, requiring minimal setup.
-
-To begin running tests, you can use `arturo tester.art` or `exercism test` within the exercise folder.
+Locally, you must first install Unitt 3 by running `arturo --package install unitt 3.0.0`.
+At that point, you can use `arturo tester.art` or `exercism test` to run your tests within the exercise folder.
 Only the first test will be run and reported back to you.
 Once that test passes, unskip the next one and run the tests again until each test passes.
 For both the RSpec and XUnit setups, that's as simple as removing `.skip` from `it.skip` or `test.skip` respectively.
@@ -41,7 +40,7 @@ Remove the `panic` line and then begin coding your implementation for `isLeap?`.
 ## RSpec Test Structure

 ```arturo
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}!
 import {src/leap}!

 describe "Leap" [
@@ -63,14 +62,6 @@ In `expects.be:'false? @[isLeap? 2015]`, the test suite is making an assertion t
 Another way to write that is `expects.be:'equal? @[false isLeapYear? 2015]` where we're asserting the returned vaue of `isLeapYear? 2015` is equal to `false`.
 This longer form comparing two values is the most common type of assertion on the Arturo track.
 The expected value will always come first in the block before the result value.
-Notably, `express <value>` is used sometimes to add quotes at the beginning and end of strings, like `expects.be:'equal? @[express "reward" express reverseString "drawer"]`.
-To help readability, this will typically be split across multiple lines like this:
-```arturo
-expects.be:'equal? @[
-    express "reward"
-    express reverseString "drawer"
-]
-```

 ## XUnit Test Structure

@@ -106,24 +97,29 @@ RSpec, however, reports it as `false? false` because we used the `false?` functi
 Starting at the beginning, Arturo will report an error if the `panic` from the starting file hasm't been removed and not evaluate any tests.

 ```
-===== tests/test-leap.art =====
+Uncaught error in tests/test-leap.art:
+#[
+        output: {
+                
+                ══╡ Program Error ╞═════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════ <script> ══
+                
+                  Please implement the isLeap? function
+                
+                
+        }
+        code: 1
+]

-Description: Leap 
- 
-
-══╡ Program Error ╞═════════════════════════════════════════════════════════════════════════════════════════════════ <script> ══
-
-  please implement the isLeap? function
 ```

 Once the `panic` is replaced, Arturo will report the status for each assertion made within a test.
 Now the first test passes, but the second test is skipped.

 ```plaintext
-===== tests/test-leap.art =====
+======== .unitt/tests/test-leap.art ========
+
+Describe: Leap

-Description: Leap 
- 
    ✅ - assert that a year not divisible by 4 is a common year
         ✅: false? false

@@ -131,25 +127,24 @@ Description: Leap
         skipped!


+========== Summary ==========

-===== Statistics =====
+⏏️   TOTAL: 2 assertions
+✅  PASSED: 1 assertion
+⏩ SKIPPED: 1 assertion
+❌  FAILED: 0 assertion

- ⏏️   TOTAL: 1 assertions
-✅  PASSED: 1 assertions
-⏩ SKIPPED: 1 assertions
-❌  FAILED: 0 assertions
-
-===== ========== =====
+========== ======= ==========
 ```

 After the second test is manually unskipped, both tests will be run.
-However, my code only returns `false` so the second test fails its assertion.
+However, the current isLeap? code implementation only returns `false` so the second test fails its assertion.

 ```plaintext
-===== tests/test-leap.art =====
+======== .unitt/tests/test-leap.art ========
+
+Describe: Leap

-Description: Leap 
- 
    ✅ - assert that a year not divisible by 4 is a common year
         ✅: false? false

@@ -157,15 +152,14 @@ Description: Leap
         ❌: true? false


+========== Summary ==========

-===== Statistics =====
+⏏️   TOTAL: 2 assertions
+✅  PASSED: 1 assertion
+⏩ SKIPPED: 0 assertion
+❌  FAILED: 1 assertion

- ⏏️   TOTAL: 2 assertions
-✅  PASSED: 1 assertions
-⏩ SKIPPED: 0 assertions
-❌  FAILED: 1 assertions
-
-===== ========== =====
+========== ======= ==========
 ```

 This process will continue as you unskip more tests.
--- a/exercises/practice/acronym/tester.art
+++ b/exercises/practice/acronym/tester.art
@@ -1,3 +1,7 @@
-import.version:2.0.1 {unitt}!
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"

-runTests.failFast findTests "tests"
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
--- a/exercises/practice/acronym/tests/test-acronym.art
+++ b/exercises/practice/acronym/tests/test-acronym.art
@@ -1,76 +1,76 @@
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/acronym}!

 describe "Acronym" [
    it "basic" [
        phrase: "Portable Network Graphics"
        expects.be: 'equal? @[
-            express "PNG"
-            express abbreviate phrase 
+            "PNG"
+            abbreviate phrase 
        ]
    ]

    it.skip "lowercase words" [
        phrase: "Ruby on Rails"
        expects.be: 'equal? @[
-            express "ROR"
-            express abbreviate phrase 
+            "ROR"
+            abbreviate phrase 
        ]
    ]

    it.skip "punctuation" [
        phrase: "First In, First Out"
        expects.be: 'equal? @[
-            express "FIFO"
-            express abbreviate phrase 
+            "FIFO"
+            abbreviate phrase 
        ]
    ]

    it.skip "all uppercase word" [
        phrase: "GNU Image Manipulation Program"
        expects.be: 'equal? @[
-            express "GIMP"
-            express abbreviate phrase 
+            "GIMP"
+            abbreviate phrase 
        ]
    ]

    it.skip "punctuation without whitespace" [
        phrase: "Complementary metal-oxide semiconductor"
        expects.be: 'equal? @[
-            express "CMOS"
-            express abbreviate phrase 
+            "CMOS"
+            abbreviate phrase 
        ]
    ]

    it.skip "very long abbreviation" [
        phrase: "Rolling On The Floor Laughing So Hard That My Dogs Came Over And Licked Me"
        expects.be: 'equal? @[
-            express "ROTFLSHTMDCOALM"
-            express abbreviate phrase 
+            "ROTFLSHTMDCOALM"
+            abbreviate phrase 
        ]
    ]

    it.skip "consecutive delimiters" [
        phrase: "Something - I made up from thin air"
        expects.be: 'equal? @[
-            express "SIMUFTA"
-            express abbreviate phrase 
+            "SIMUFTA"
+            abbreviate phrase 
        ]
    ]

    it.skip "apostrophes" [
        phrase: "Halley\'s Comet"
        expects.be: 'equal? @[
-            express "HC"
-            express abbreviate phrase 
+            "HC"
+            abbreviate phrase 
        ]
    ]

    it.skip "underscore emphasis" [
        phrase: "The Road _Not_ Taken"
        expects.be: 'equal? @[
-            express "TRNT"
-            express abbreviate phrase 
+            "TRNT"
+            abbreviate phrase 
        ]
    ]
 ]
--- a/exercises/practice/acronym/unitt.toml
+++ b/exercises/practice/acronym/unitt.toml
@@ -0,0 +1,4 @@
+# unitt.toml - Configuration for unitt
+
+path = "tests"
+suffix = ".art"
--- a/exercises/practice/allergies/tester.art
+++ b/exercises/practice/allergies/tester.art
@@ -1,3 +1,7 @@
-import.version:2.0.1 {unitt}!
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"

-runTests.failFast findTests "tests"
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
--- a/exercises/practice/allergies/tests/test-allergies.art
+++ b/exercises/practice/allergies/tests/test-allergies.art
@@ -1,4 +1,4 @@
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/allergies}!

 describe "Allergies" [
--- a/exercises/practice/allergies/unitt.toml
+++ b/exercises/practice/allergies/unitt.toml
@@ -0,0 +1,4 @@
+# unitt.toml - Configuration for unitt
+
+path = "tests"
+suffix = ".art"
--- a/exercises/practice/anagram/tester.art
+++ b/exercises/practice/anagram/tester.art
@@ -1,3 +1,7 @@
-import.version:2.0.1 {unitt}!
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"

-runTests.failFast findTests "tests"
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
--- a/exercises/practice/anagram/tests/test-anagram.art
+++ b/exercises/practice/anagram/tests/test-anagram.art
@@ -1,39 +1,39 @@
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/anagram}!

 describe "Anagram" [
    it "no matches" [
        expects.be:'equal? @[
-            express []
-            express findAnagrams "diaper" ["hello" "world" "zombies" "pants"]
+            []
+            findAnagrams "diaper" ["hello" "world" "zombies" "pants"]
        ]
    ]

    it.skip "detects two anagrams" [
        expects.be:'equal? @[
-            express ["lemons" "melons"]
-            express findAnagrams "solemn" ["lemons" "cherry" "melons"]
+            ["lemons" "melons"]
+            findAnagrams "solemn" ["lemons" "cherry" "melons"]
        ]
    ]

    it.skip "does not detect anagram subsets" [
        expects.be:'equal? @[
-            express []
-            express findAnagrams "good" ["dog" "goody"]
+            []
+            findAnagrams "good" ["dog" "goody"]
        ]
    ]

    it.skip "detects anagram" [
        expects.be:'equal? @[
-            express ["inlets"]
-            express findAnagrams "listen" ["enlists" "google" "inlets" "banana"]
+            ["inlets"]
+            findAnagrams "listen" ["enlists" "google" "inlets" "banana"]
        ]
    ]
    
    it.skip "detects three anagrams" [
        expects.be:'equal? @[
-            express ["gallery" "regally" "largely"]
-            express findAnagrams "allergy" ["gallery" "ballerina"
+            ["gallery" "regally" "largely"]
+            findAnagrams "allergy" ["gallery" "ballerina"
                                            "regally" "clergy" 
                                            "largely" "leading"]
        ]
@@ -41,78 +41,78 @@ describe "Anagram" [

    it.skip "detects multiple anagrams with different case" [
        expects.be:'equal? @[
-            express ["Eons" "ONES"]
-            express findAnagrams "nose" ["Eons" "ONES"]
+            ["Eons" "ONES"]
+            findAnagrams "nose" ["Eons" "ONES"]
        ]
    ]

    it.skip "does not detect non-anagrams with identical checksum" [
        expects.be:'equal? @[
-            express []
-            express findAnagrams "mass" ["last"]
+            []
+            findAnagrams "mass" ["last"]
        ]
    ]

    it.skip "detects anagrams case-insensitively" [
        expects.be:'equal? @[
-            express ["Carthorse"]
-            express findAnagrams "Orchestra" ["cashregister" "Carthorse" "radishes"]
+            ["Carthorse"]
+            findAnagrams "Orchestra" ["cashregister" "Carthorse" "radishes"]
        ]
    ]

    it.skip "detects anagrams using case-insensitive subject" [
        expects.be:'equal? @[
-            express ["carthorse"]
-            express findAnagrams "Orchestra" ["cashregister" "carthorse" "radishes"]
+            ["carthorse"]
+            findAnagrams "Orchestra" ["cashregister" "carthorse" "radishes"]
        ]
    ]

    it.skip "detects anagrams using case-insensitive possible matches" [
        expects.be:'equal? @[
-            express ["Carthorse"]
-            express findAnagrams "orchestra" ["cashregister" "Carthorse" "radishes"]
+            ["Carthorse"]
+            findAnagrams "orchestra" ["cashregister" "Carthorse" "radishes"]
        ]
    ]

    it.skip "does not detect an anagram if the original word is repeated" [
        expects.be:'equal? @[
-            express []
-            express findAnagrams "go" ["goGoGO"]
+            []
+            findAnagrams "go" ["goGoGO"]
        ]
    ]

    it.skip "anagrams must use all letters exactly once" [
        expects.be:'equal? @[
-            express []
-            express findAnagrams "tapper" ["patter"]
+            []
+            findAnagrams "tapper" ["patter"]
        ]
    ]

    it.skip "words are not anagrams of themselves" [
        expects.be:'equal? @[
-            express []
-            express findAnagrams "BANANA" ["BANANA"]
+            []
+            findAnagrams "BANANA" ["BANANA"]
        ]
    ]

    it.skip "words are not anagrams of themselves even if letter case is partially different" [
        expects.be:'equal? @[
-            express []
-            express findAnagrams "BANANA" ["Banana"]
+            []
+            findAnagrams "BANANA" ["Banana"]
        ]
    ]

    it.skip "words are not anagrams of themselves even if letter case is completely different" [
        expects.be:'equal? @[
-            express []
-            express findAnagrams "BANANA" ["banana"]
+            []
+            findAnagrams "BANANA" ["banana"]
        ]
    ]

    it.skip "words other than themselves can be anagrams" [
        expects.be:'equal? @[
-            express ["Silent"]
-            express findAnagrams "LISTEN" ["Listen" "Silent" "LISTEN"]
+            ["Silent"]
+            findAnagrams "LISTEN" ["Listen" "Silent" "LISTEN"]
        ]
    ]

@@ -125,8 +125,8 @@ describe "Anagram" [

    it.skip "different characters may have the same bytes" [
        expects.be:'equal? @[
-            express []
-            express findAnagrams "a⬂" ["€a"]
+            []
+            findAnagrams "a⬂" ["€a"]
        ]
    ]
 ]
--- a/exercises/practice/anagram/unitt.toml
+++ b/exercises/practice/anagram/unitt.toml
@@ -0,0 +1,4 @@
+# unitt.toml - Configuration for unitt
+
+path = "tests"
+suffix = ".art"
--- a/exercises/practice/armstrong-numbers/tester.art
+++ b/exercises/practice/armstrong-numbers/tester.art
@@ -1,3 +1,7 @@
-import.version:2.0.1 {unitt}!
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"

-runTests.failFast findTests "tests"
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
--- a/exercises/practice/armstrong-numbers/tests/test-armstrong-numbers.art
+++ b/exercises/practice/armstrong-numbers/tests/test-armstrong-numbers.art
@@ -1,4 +1,4 @@
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/armstrong-numbers}!

 describe "Armstrong Numbers" [
--- a/exercises/practice/armstrong-numbers/unitt.toml
+++ b/exercises/practice/armstrong-numbers/unitt.toml
@@ -0,0 +1,4 @@
+# unitt.toml - Configuration for unitt
+
+path = "tests"
+suffix = ".art"
--- a/exercises/practice/atbash-cipher/tester.art
+++ b/exercises/practice/atbash-cipher/tester.art
@@ -1,3 +1,7 @@
-import.version:2.0.1 {unitt}!
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"

-runTests.failFast findTests "tests"
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
--- a/exercises/practice/atbash-cipher/tests/test-atbash-cipher.art
+++ b/exercises/practice/atbash-cipher/tests/test-atbash-cipher.art
@@ -1,61 +1,61 @@
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/atbash-cipher}!

 describe "Atbash Cipher" [
  describe "Atbash Cipher - Encode" [
    it "encode yes" [
      expects.be:'equal? @[
-        express "bvh"
-        express encode "yes"
+        "bvh"
+        encode "yes"
      ]
    ]

    it.skip "encode no" [
      expects.be:'equal? @[
-        express "ml"
-        express encode "no"
+        "ml"
+        encode "no"
      ]
    ]

    it.skip "encode OMG" [
      expects.be:'equal? @[
-        express "lnt"
-        express encode "OMG"
+        "lnt"
+        encode "OMG"
      ]
    ]

    it.skip "encode spaces" [
      expects.be:'equal? @[
-        express "lnt"
-        express encode "O M G"
+        "lnt"
+        encode "O M G"
      ]
    ]

    it.skip "encode mindblowingly" [
      expects.be:'equal? @[
-        express "nrmwy oldrm tob"
-        express encode "mindblowingly"
+        "nrmwy oldrm tob"
+        encode "mindblowingly"
      ]
    ]

    it.skip "encode numbers" [
      expects.be:'equal? @[
-        express "gvhgr mt123 gvhgr mt"
-        express encode "Testing,1 2 3, testing."
+        "gvhgr mt123 gvhgr mt"
+        encode "Testing,1 2 3, testing."
      ]
    ]

    it.skip "encode deep thought" [
      expects.be:'equal? @[
-        express "gifgs rhurx grlm"
-        express encode "Truth is fiction."
+        "gifgs rhurx grlm"
+        encode "Truth is fiction."
      ]
    ]

    it.skip "encode all the letters" [
      expects.be:'equal? @[
-        express "gsvjf rxpyi ldmul cqfnk hlevi gsvoz abwlt"
-        express encode "The quick brown fox jumps over the lazy dog."
+        "gsvjf rxpyi ldmul cqfnk hlevi gsvoz abwlt"
+        encode "The quick brown fox jumps over the lazy dog."
      ]
    ]
  ]
@@ -63,43 +63,43 @@ describe "Atbash Cipher" [
  describe "Atbash Cipher - Decode" [
    it.skip "decode exercism" [
      expects.be:'equal? @[
-        express "exercism"
-        express decode "vcvix rhn"
+        "exercism"
+        decode "vcvix rhn"
      ]
    ]

    it.skip "decode a sentence" [
      expects.be:'equal? @[
-        express "anobstacleisoftenasteppingstone"
-        express decode "zmlyh gzxov rhlug vmzhg vkkrm thglm v"
+        "anobstacleisoftenasteppingstone"
+        decode "zmlyh gzxov rhlug vmzhg vkkrm thglm v"
      ]
    ]

    it.skip "decode numbers" [
      expects.be:'equal? @[
-        express "testing123testing"
-        express decode "gvhgr mt123 gvhgr mt"
+        "testing123testing"
+        decode "gvhgr mt123 gvhgr mt"
      ]
    ]

    it.skip "decode all the letters" [
      expects.be:'equal? @[
-        express "thequickbrownfoxjumpsoverthelazydog"
-        express decode "gsvjf rxpyi ldmul cqfnk hlevi gsvoz abwlt"
+        "thequickbrownfoxjumpsoverthelazydog"
+        decode "gsvjf rxpyi ldmul cqfnk hlevi gsvoz abwlt"
      ]
    ]

    it.skip "decode with too many spaces" [
      expects.be:'equal? @[
-        express "exercism"
-        express decode "vc vix    r hn"
+        "exercism"
+        decode "vc vix    r hn"
      ]
    ]

    it.skip "decode with no spaces" [
      expects.be:'equal? @[
-        express "anobstacleisoftenasteppingstone"
-        express decode "zmlyhgzxovrhlugvmzhgvkkrmthglmv"
+        "anobstacleisoftenasteppingstone"
+        decode "zmlyhgzxovrhlugvmzhgvkkrmthglmv"
      ]
    ]
  ]
--- a/exercises/practice/atbash-cipher/unitt.toml
+++ b/exercises/practice/atbash-cipher/unitt.toml
@@ -0,0 +1,4 @@
+# unitt.toml - Configuration for unitt
+
+path = "tests"
+suffix = ".art"
--- a/exercises/practice/binary-search/tester.art
+++ b/exercises/practice/binary-search/tester.art
@@ -1,3 +1,7 @@
-import.version:2.0.1 {unitt}!
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"

-runTests.failFast findTests "tests"
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
--- a/exercises/practice/binary-search/tests/test-binary-search.art
+++ b/exercises/practice/binary-search/tests/test-binary-search.art
@@ -1,4 +1,4 @@
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/binary-search}!

 describe "Binary Search" [
--- a/exercises/practice/binary-search/unitt.toml
+++ b/exercises/practice/binary-search/unitt.toml
@@ -0,0 +1,4 @@
+# unitt.toml - Configuration for unitt
+
+path = "tests"
+suffix = ".art"
--- a/exercises/practice/bob/tester.art
+++ b/exercises/practice/bob/tester.art
@@ -1,3 +1,7 @@
-import.version:2.0.1 {unitt}!
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"

-runTests.failFast findTests "tests"
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
--- a/exercises/practice/bob/tests/test-bob.art
+++ b/exercises/practice/bob/tests/test-bob.art
@@ -1,179 +1,179 @@
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/bob}!

 describe "Bob" [
    it "stating something" [
        expects.be:'equal? @[
-            express "Whatever."
-            express response "Tom-ay-to, tom-aaaah-to."
+            "Whatever."
+            response "Tom-ay-to, tom-aaaah-to."
        ]
    ]

    it.skip "shouting" [
        expects.be:'equal? @[
-            express "Whoa, chill out!"
-            express response "WATCH OUT!"
+            "Whoa, chill out!"
+            response "WATCH OUT!"
        ]
    ]

    it.skip "shouting gibberish" [
        expects.be:'equal? @[
-            express "Whoa, chill out!"
-            express response "FCECDFCAAB"
+            "Whoa, chill out!"
+            response "FCECDFCAAB"
        ]
    ]

    it.skip "asking a question" [
        expects.be:'equal? @[
-            express "Sure."
-            express response "Does this cryogenic chamber make me look fat?"
+            "Sure."
+            response "Does this cryogenic chamber make me look fat?"
        ]
    ]

    it.skip "asking a numeric question" [
        expects.be:'equal? @[
-            express "Sure."
-            express response "You are, what, like 15?"
+            "Sure."
+            response "You are, what, like 15?"
        ]
    ]

    it.skip "asking gibberish" [
        expects.be:'equal? @[
-            express "Sure."
-            express response "fffbbcbeab?"
+            "Sure."
+            response "fffbbcbeab?"
        ]
    ]

    it.skip "talking forcefully" [
        expects.be:'equal? @[
-            express "Whatever."
-            express response "Let's go make out behind the gym!"
+            "Whatever."
+            response "Let's go make out behind the gym!"
        ]
    ]

    it.skip "using acronyms in regular speech" [
        expects.be:'equal? @[
-            express "Whatever."
-            express response "It's OK if you don't want to go to the DMV."
+            "Whatever."
+            response "It's OK if you don't want to go to the DMV."
        ]
    ]

    it.skip "forceful question" [
        expects.be:'equal? @[
-            express "Calm down, I know what I'm doing!"
-            express response "WHAT THE HELL WERE YOU THINKING?"
+            "Calm down, I know what I'm doing!"
+            response "WHAT THE HELL WERE YOU THINKING?"
        ]
    ]

    it.skip "shouting numbers" [
        expects.be:'equal? @[
-            express "Whoa, chill out!"
-            express response "1, 2, 3 GO!"
+            "Whoa, chill out!"
+            response "1, 2, 3 GO!"
        ]
    ]

    it.skip "no letters" [
        expects.be:'equal? @[
-            express "Whatever."
-            express response "1, 2, 3"
+            "Whatever."
+            response "1, 2, 3"
        ]
    ]

    it.skip "question with no letters" [
        expects.be:'equal? @[
-            express "Sure."
-            express response "4?"
+            "Sure."
+            response "4?"
        ]
    ]

    it.skip "shouting with special characters" [
        expects.be:'equal? @[
-            express "Whoa, chill out!"
-            express response "ZOMG THE %^*@#$(*^ ZOMBIES ARE COMING!!11!!1!"
+            "Whoa, chill out!"
+            response "ZOMG THE %^*@#$(*^ ZOMBIES ARE COMING!!11!!1!"
        ]
    ]

    it.skip "shouting with no exclamation mark" [
        expects.be:'equal? @[
-            express "Whoa, chill out!"
-            express response "I HATE YOU"
+            "Whoa, chill out!"
+            response "I HATE YOU"
        ]
    ]

    it.skip "statement containing question mark" [
        expects.be:'equal? @[
-            express "Whatever."
-            express response "Ending with ? means a question."
+            "Whatever."
+            response "Ending with ? means a question."
        ]
    ]

    it.skip "non-letters with question" [
        expects.be:'equal? @[
-            express "Sure."
-            express response ":) ?"
+            "Sure."
+            response ":) ?"
        ]
    ]

    it.skip "prattling on" [
        expects.be:'equal? @[
-            express "Sure."
-            express response "Wait! Hang on. Are you going to be OK?"
+            "Sure."
+            response "Wait! Hang on. Are you going to be OK?"
        ]
    ]

    it.skip "silence" [
        expects.be:'equal? @[
-            express "Fine. Be that way!"
-            express response ""
+            "Fine. Be that way!"
+            response ""
        ]
    ]

    it.skip "prolonged silence" [
        expects.be:'equal? @[
-            express "Fine. Be that way!"
-            express response "    "
+            "Fine. Be that way!"
+            response "    "
        ]
    ]

    it.skip "alternate silence" [
        expects.be:'equal? @[
-            express "Fine. Be that way!"
-            express response "\t\t\t\t\t\t\t\t\t\t"
+            "Fine. Be that way!"
+            response "\t\t\t\t\t\t\t\t\t\t"
        ]
    ]

    it.skip "starting with whitespace" [
        expects.be:'equal? @[
-            express "Whatever."
-            express response "         hmmmmmmm..."
+            "Whatever."
+            response "         hmmmmmmm..."
        ]
    ]

    it.skip "ending with whitespace" [
        expects.be:'equal? @[
-            express "Sure."
-            express response "Okay if like my  spacebar  quite a bit?   "
+            "Sure."
+            response "Okay if like my  spacebar  quite a bit?   "
        ]
    ]

    it.skip "other whitespace" [
        expects.be:'equal? @[
-            express "Fine. Be that way!"
-            express response "\n\r \t"
+            "Fine. Be that way!"
+            response "\n\r \t"
        ]
    ]

    it.skip "non-question ending with whitespace" [
        expects.be:'equal? @[
-            express "Whatever."
-            express response "This is a statement ending with whitespace      "
+            "Whatever."
+            response "This is a statement ending with whitespace      "
        ]
    ]

    it.skip "multiple line question" [
        expects.be:'equal? @[
-            express "Sure."
-            express response "\nDoes this cryogenic chamber make\n me look fat?"
+            "Sure."
+            response "\nDoes this cryogenic chamber make\n me look fat?"
        ]
    ]
 ]
--- a/exercises/practice/bob/unitt.toml
+++ b/exercises/practice/bob/unitt.toml
@@ -0,0 +1,4 @@
+# unitt.toml - Configuration for unitt
+
+path = "tests"
+suffix = ".art"
--- a/exercises/practice/bottle-song/tester.art
+++ b/exercises/practice/bottle-song/tester.art
@@ -1,3 +1,7 @@
-import.version:2.0.1 {unitt}!
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"

-runTests.failFast findTests "tests"
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
--- a/exercises/practice/bottle-song/tests/test-bottle-song.art
+++ b/exercises/practice/bottle-song/tests/test-bottle-song.art
@@ -1,4 +1,4 @@
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/bottle-song}!

 describe "Bottle Song" [
@@ -11,8 +11,8 @@ describe "Bottle Song" [
                There'll be nine green bottles hanging on the wall.
            }
            expects.be:'equal? @[
-                express expected
-                express recite 10 1
+                expected
+                recite 10 1
            ]
        ]

@@ -24,8 +24,8 @@ describe "Bottle Song" [
                There'll be two green bottles hanging on the wall.
            }
            expects.be:'equal? @[
-                express expected
-                express recite 3 1
+                expected
+                recite 3 1
            ]
        ]

@@ -37,8 +37,8 @@ describe "Bottle Song" [
                There'll be one green bottle hanging on the wall.
            }
            expects.be:'equal? @[
-                express expected
-                express recite 2 1
+                expected
+                recite 2 1
            ]
        ]

@@ -50,8 +50,8 @@ describe "Bottle Song" [
                There'll be no green bottles hanging on the wall.
            }
            expects.be:'equal? @[
-                express expected
-                express recite 1 1
+                expected
+                recite 1 1
            ]
        ]
    ]
@@ -70,8 +70,8 @@ describe "Bottle Song" [
                There'll be eight green bottles hanging on the wall.
            }
            expects.be:'equal? @[
-                express expected
-                express recite 10 2
+                expected
+                recite 10 2
            ]
        ]

@@ -93,8 +93,8 @@ describe "Bottle Song" [
                There'll be no green bottles hanging on the wall.
            }
            expects.be:'equal? @[
-                express expected
-                express recite 3 3
+                expected
+                recite 3 3
            ]
        ]

@@ -151,8 +151,8 @@ describe "Bottle Song" [
                There'll be no green bottles hanging on the wall.
            }
            expects.be:'equal? @[
-                express expected
-                express recite 10 10
+                expected
+                recite 10 10
            ]
        ]
    ]
--- a/exercises/practice/bottle-song/unitt.toml
+++ b/exercises/practice/bottle-song/unitt.toml
@@ -0,0 +1,4 @@
+# unitt.toml - Configuration for unitt
+
+path = "tests"
+suffix = ".art"
--- a/exercises/practice/change/tester.art
+++ b/exercises/practice/change/tester.art
@@ -1,3 +1,7 @@
-import.version:2.0.1 {unitt}!
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"

-runTests.failFast findTests "tests"
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
--- a/exercises/practice/change/tests/test-change.art
+++ b/exercises/practice/change/tests/test-change.art
@@ -1,4 +1,4 @@
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/change}!

 describe "Change" [
--- a/exercises/practice/change/unitt.toml
+++ b/exercises/practice/change/unitt.toml
@@ -0,0 +1,4 @@
+# unitt.toml - Configuration for unitt
+
+path = "tests"
+suffix = ".art"
--- a/exercises/practice/clock/tester.art
+++ b/exercises/practice/clock/tester.art
@@ -1,3 +1,7 @@
-import.version:2.0.1 {unitt}!
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"

-runTests.failFast findTests "tests"
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
--- a/exercises/practice/clock/tests/test-clock.art
+++ b/exercises/practice/clock/tests/test-clock.art
@@ -1,145 +1,145 @@
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/clock}!

 describe "Clock" [
    describe "Clock - Create a new clock with an initial time" [
        it "on the hour" [
            expects.be:'equal? @[
-                express "08:00"
-                express to :string to :clock [8`hr 0`min]
+                "08:00"
+                to :string to :clock [8`hr 0`min]
            ]
        ]

        it.skip "past the hour" [
            expects.be:'equal? @[
-                express "11:09"
-                express to :string to :clock [11`hr 9`min]
+                "11:09"
+                to :string to :clock [11`hr 9`min]
            ]
        ]

        it.skip "midnight is zero hours" [
            expects.be:'equal? @[
-                express "00:00"
-                express to :string to :clock [24`hr 0`min]
+                "00:00"
+                to :string to :clock [24`hr 0`min]
            ]
        ]

        it.skip "hour rolls over" [
            expects.be:'equal? @[
-                express "01:00"
-                express to :string to :clock [25`hr 0`min]
+                "01:00"
+                to :string to :clock [25`hr 0`min]
            ]
        ]

        it.skip "hour rolls over continuously" [
            expects.be:'equal? @[
-                express "04:00"
-                express to :string to :clock [100`hr 0`min]
+                "04:00"
+                to :string to :clock [100`hr 0`min]
            ]
        ]

        it.skip "sixty minutes is next hour" [
            expects.be:'equal? @[
-                express "02:00"
-                express to :string to :clock [1`hr 60`min]
+                "02:00"
+                to :string to :clock [1`hr 60`min]
            ]
        ]

        it.skip "minutes roll over" [
            expects.be:'equal? @[
-                express "02:40"
-                express to :string to :clock [0`hr 160`min]
+                "02:40"
+                to :string to :clock [0`hr 160`min]
            ]
        ]

        it.skip "minutes roll over continuously" [
            expects.be:'equal? @[
-                express "04:43"
-                express to :string to :clock [0`hr 1723`min]
+                "04:43"
+                to :string to :clock [0`hr 1723`min]
            ]
        ]

        it.skip "hour and minutes roll over" [
            expects.be:'equal? @[
-                express "03:40"
-                express to :string to :clock [25`hr 160`min]
+                "03:40"
+                to :string to :clock [25`hr 160`min]
            ]
        ]

        it.skip "hour and minutes roll over continuously" [
            expects.be:'equal? @[
-                express "11:01"
-                express to :string to :clock [201`hr 3001`min]
+                "11:01"
+                to :string to :clock [201`hr 3001`min]
            ]
        ]

        it.skip "hour and minutes roll over to exactly midnight" [
            expects.be:'equal? @[
-                express "00:00"
-                express to :string to :clock [72`hr 8640`min]
+                "00:00"
+                to :string to :clock [72`hr 8640`min]
            ]
        ]

        it.skip "negative hour" [
            expects.be:'equal? @[
-                express "23:15"
-                express to :string to :clock @[neg 1`hr 15`min]
+                "23:15"
+                to :string to :clock @[neg 1`hr 15`min]
            ]
        ]

        it.skip "negative hour rolls over" [
            expects.be:'equal? @[
-                express "23:00"
-                express to :string to :clock @[neg 25`hr 0`min]
+                "23:00"
+                to :string to :clock @[neg 25`hr 0`min]
            ]
        ]

        it.skip "negative hour rolls over continuously" [
            expects.be:'equal? @[
-                express "05:00"
-                express to :string to :clock @[neg 91`hr 0`min]
+                "05:00"
+                to :string to :clock @[neg 91`hr 0`min]
            ]
        ]

        it.skip "negative minutes" [
            expects.be:'equal? @[
-                express "00:20"
-                express to :string to :clock @[1`hr neg 40`min]
+                "00:20"
+                to :string to :clock @[1`hr neg 40`min]
            ]
        ]

        it.skip "negative minutes roll over" [
            expects.be:'equal? @[
-                express "22:20"
-                express to :string to :clock @[1`hr neg 160`min]
+                "22:20"
+                to :string to :clock @[1`hr neg 160`min]
            ]
        ]

        it.skip "negative minutes roll over continuously" [
            expects.be:'equal? @[
-                express "16:40"
-                express to :string to :clock @[1`hr neg 4820`min]
+                "16:40"
+                to :string to :clock @[1`hr neg 4820`min]
            ]
        ]

        it.skip "negative sixty minutes is previous hour" [
            expects.be:'equal? @[
-                express "01:00"
-                express to :string to :clock @[2`hr neg 60`min]
+                "01:00"
+                to :string to :clock @[2`hr neg 60`min]
            ]
        ]

        it.skip "negative hour and minutes roll over" [
            expects.be:'equal? @[
-                express "20:20"
-                express to :string to :clock @[neg 25`hr neg 160`min]
+                "20:20"
+                to :string to :clock @[neg 25`hr neg 160`min]
            ]
        ]

        it.skip "negative hour and minutes roll over continuously" [
            expects.be:'equal? @[
-                express "22:10"
-                express to :string to :clock @[neg 121`hr neg 5810`min]
+                "22:10"
+                to :string to :clock @[neg 121`hr neg 5810`min]
            ]
        ]
    ]
@@ -149,8 +149,8 @@ describe "Clock" [
            c: to :clock [10`hr 0`min]
            do [c\increment 3`min]
            expects.be:'equal? @[
-                express "10:03"
-                express to :string c
+                "10:03"
+                to :string c
            ]
        ]

@@ -158,8 +158,8 @@ describe "Clock" [
            c: to :clock [6`hr 41`min]
            do [c\increment 0`min]
            expects.be:'equal? @[
-                express "06:41"
-                express to :string c
+                "06:41"
+                to :string c
            ]
        ]

@@ -167,8 +167,8 @@ describe "Clock" [
            c: to :clock [0`hr 45`min]
            do [c\increment 40`min]
            expects.be:'equal? @[
-                express "01:25"
-                express to :string c
+                "01:25"
+                to :string c
            ]
        ]

@@ -176,8 +176,8 @@ describe "Clock" [
            c: to :clock [10`hr 0`min]
            do [c\increment 61`min]
            expects.be:'equal? @[
-                express "11:01"
-                express to :string c
+                "11:01"
+                to :string c
            ]
        ]

@@ -185,8 +185,8 @@ describe "Clock" [
            c: to :clock [0`hr 45`min]
            do [c\increment 160`min]
            expects.be:'equal? @[
-                express "03:25"
-                express to :string c
+                "03:25"
+                to :string c
            ]
        ]

@@ -194,8 +194,8 @@ describe "Clock" [
            c: to :clock [23`hr 59`min]
            do [c\increment 2`min]
            expects.be:'equal? @[
-                express "00:01"
-                express to :string c
+                "00:01"
+                to :string c
            ]
        ]

@@ -203,8 +203,8 @@ describe "Clock" [
            c: to :clock [5`hr 32`min]
            do [c\increment 1500`min]
            expects.be:'equal? @[
-                express "06:32"
-                express to :string c
+                "06:32"
+                to :string c
            ]
        ]

@@ -212,8 +212,8 @@ describe "Clock" [
            c: to :clock [1`hr 1`min]
            do [c\increment 3500`min]
            expects.be:'equal? @[
-                express "11:21"
-                express to :string c
+                "11:21"
+                to :string c
            ]
        ]
    ]
@@ -224,8 +224,8 @@ describe "Clock" [
            c: to :clock [10`hr 3`min]
            do [c\decrement 3`min]
            expects.be:'equal? @[
-                express "10:00"
-                express to :string c
+                "10:00"
+                to :string c
            ]
        ]

@@ -233,8 +233,8 @@ describe "Clock" [
            c: to :clock [10`hr 3`min]
            do [c\decrement 30`min]
            expects.be:'equal? @[
-                express "09:33"
-                express to :string c
+                "09:33"
+                to :string c
            ]
        ]

@@ -242,8 +242,8 @@ describe "Clock" [
            c: to :clock [10`hr 3`min]
            do [c\decrement 70`min]
            expects.be:'equal? @[
-                express "08:53"
-                express to :string c
+                "08:53"
+                to :string c
            ]
        ]

@@ -251,8 +251,8 @@ describe "Clock" [
            c: to :clock [0`hr 3`min]
            do [c\decrement 4`min]
            expects.be:'equal? @[
-                express "23:59"
-                express to :string c
+                "23:59"
+                to :string c
            ]
        ]

@@ -260,8 +260,8 @@ describe "Clock" [
            c: to :clock [0`hr 0`min]
            do [c\decrement 160`min]
            expects.be:'equal? @[
-                express "21:20"
-                express to :string c
+                "21:20"
+                to :string c
            ]
        ]

@@ -269,8 +269,8 @@ describe "Clock" [
            c: to :clock [6`hr 15`min]
            do [c\decrement 160`min]
            expects.be:'equal? @[
-                express "03:35"
-                express to :string c
+                "03:35"
+                to :string c
            ]
        ]

@@ -278,8 +278,8 @@ describe "Clock" [
            c: to :clock [5`hr 32`min]
            do [c\decrement 1500`min]
            expects.be:'equal? @[
-                express "04:32"
-                express to :string c
+                "04:32"
+                to :string c
            ]
        ]

@@ -287,8 +287,8 @@ describe "Clock" [
            c: to :clock [2`hr 20`min]
            do [c\decrement 3000`min]
            expects.be:'equal? @[
-                express "00:20"
-                express to :string c
+                "00:20"
+                to :string c
            ]
        ]
    ]
@@ -296,57 +296,57 @@ describe "Clock" [
    describe "Clock - Compare two clocks for equality" [
        it "clocks with same time" [
            expects.be:'equal? @[
-                express to :string to :clock [15`hr 37`min]
-                express to :string to :clock [15`hr 37`min]
+                to :string to :clock [15`hr 37`min]
+                to :string to :clock [15`hr 37`min]
            ]
        ]

        it.skip "clocks a minute apart" [
            expects.be:'notEqual? @[
-                express to :string to :clock [15`hr 36`min]
-                express to :string to :clock [15`hr 37`min]
+                to :string to :clock [15`hr 36`min]
+                to :string to :clock [15`hr 37`min]
            ]
        ]

        it.skip "clocks an hour apart" [
            expects.be:'notEqual? @[
-                express to :string to :clock [14`hr 37`min]
-                express to :string to :clock [15`hr 37`min]
+                to :string to :clock [14`hr 37`min]
+                to :string to :clock [15`hr 37`min]
            ]
        ]

        it.skip "clocks with hour overflow" [
            expects.be:'equal? @[
-                express to :string to :clock [10`hr 37`min]
-                express to :string to :clock [34`hr 37`min]
+                to :string to :clock [10`hr 37`min]
+                to :string to :clock [34`hr 37`min]
            ]
        ]

        it.skip "clocks with hour overflow by several days" [
            expects.be:'equal? @[
-                express to :string to :clock [3`hr 11`min]
-                express to :string to :clock [99`hr 11`min]
+                to :string to :clock [3`hr 11`min]
+                to :string to :clock [99`hr 11`min]
            ]
        ]

        it.skip "clocks with negative hour" [
            expects.be:'equal? @[
-                express to :string to :clock [22`hr 40`min]
-                express to :string to :clock @[neg 2`hr 40`min]
+                to :string to :clock [22`hr 40`min]
+                to :string to :clock @[neg 2`hr 40`min]
            ]
        ]

        it.skip "clocks with negative hour that wraps" [
            expects.be:'equal? @[
-                express to :string to :clock [17`hr 3`min]
-                express to :string to :clock @[neg 31`hr 3`min]
+                to :string to :clock [17`hr 3`min]
+                to :string to :clock @[neg 31`hr 3`min]
            ]
        ]

        it.skip "clocks with negative hour that wraps multiple times" [
            expects.be:'equal? @[
-                express to :string to :clock [13`hr 49`min]
-                express to :string to :clock @[neg 83`hr 49`min]
+                to :string to :clock [13`hr 49`min]
+                to :string to :clock @[neg 83`hr 49`min]
            ]
        ]

@@ -354,58 +354,58 @@ describe "Clock" [
            c1: to :clock [0`hr 1`min]
            c2: to :clock [0`hr 1441`min]
            expects.be:'equal? @[
-                express to :string to :clock [0`hr 1`min]
-                express to :string to :clock [0`hr 1441`min]
+                to :string to :clock [0`hr 1`min]
+                to :string to :clock [0`hr 1441`min]
            ]
        ]

        it.skip "clocks with minute overflow by several days" [
            expects.be:'equal? @[
-                express to :string to :clock [2`hr 2`min]
-                express to :string to :clock [2`hr 4322`min]
+                to :string to :clock [2`hr 2`min]
+                to :string to :clock [2`hr 4322`min]
            ]
        ]

        it.skip "clocks with negative minute" [
            expects.be:'equal? @[
-                express to :string to :clock [2`hr 40`min]
-                express to :string to :clock @[3`hr neg 20`min]
+                to :string to :clock [2`hr 40`min]
+                to :string to :clock @[3`hr neg 20`min]
            ]
        ]

        it.skip "clocks with negative minute that wraps" [
            expects.be:'equal? @[
-                express to :string to :clock [4`hr 10`min]
-                express to :string to :clock @[5`hr neg 1490`min]
+                to :string to :clock [4`hr 10`min]
+                to :string to :clock @[5`hr neg 1490`min]
            ]
        ]

        it.skip "clocks with negative minute that wraps multiple times" [
            expects.be:'equal? @[
-                express to :string to :clock [6`hr 15`min]
-                express to :string to :clock @[6`hr neg 4305`min]
+                to :string to :clock [6`hr 15`min]
+                to :string to :clock @[6`hr neg 4305`min]
            ]
        ]

        it.skip "clocks with negative hours and minutes" [
            expects.be:'equal? @[
-                express to :string to :clock [7`hr 32`min]
-                express to :string to :clock @[neg 12`hr neg 268`min]
+                to :string to :clock [7`hr 32`min]
+                to :string to :clock @[neg 12`hr neg 268`min]
            ]
        ]

        it.skip "clocks with negative hours and minutes that wrap" [

            expects.be:'equal? @[
-                express to :string to :clock [18`hr 7`min]
-                express to :string to :clock @[neg 54`hr neg 11513`min]
+                to :string to :clock [18`hr 7`min]
+                to :string to :clock @[neg 54`hr neg 11513`min]
            ]
        ]

        it.skip "full clock and zeroed clock" [
            expects.be:'equal? @[
-                express to :string to :clock [24`hr 0`min]
-                express to :string to :clock [0`hr 0`min]
+                to :string to :clock [24`hr 0`min]
+                to :string to :clock [0`hr 0`min]
            ]
        ]
    ]
--- a/exercises/practice/clock/unitt.toml
+++ b/exercises/practice/clock/unitt.toml
@@ -0,0 +1,4 @@
+# unitt.toml - Configuration for unitt
+
+path = "tests"
+suffix = ".art"
--- a/exercises/practice/collatz-conjecture/tester.art
+++ b/exercises/practice/collatz-conjecture/tester.art
@@ -1,3 +1,7 @@
-import.version:2.0.1 {unitt}!
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"

-runTests.failFast findTests "tests"
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
--- a/exercises/practice/collatz-conjecture/tests/test-collatz-conjecture.art
+++ b/exercises/practice/collatz-conjecture/tests/test-collatz-conjecture.art
@@ -1,4 +1,4 @@
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/collatz-conjecture}!

 describe "Collatz Conjecture"[
--- a/exercises/practice/collatz-conjecture/unitt.toml
+++ b/exercises/practice/collatz-conjecture/unitt.toml
@@ -0,0 +1,4 @@
+# unitt.toml - Configuration for unitt
+
+path = "tests"
+suffix = ".art"
--- a/exercises/practice/darts/tester.art
+++ b/exercises/practice/darts/tester.art
@@ -1,3 +1,7 @@
-import.version:2.0.1 {unitt}!
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"

-runTests.failFast findTests "tests"
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
--- a/exercises/practice/darts/tests/test-darts.art
+++ b/exercises/practice/darts/tests/test-darts.art
@@ -1,4 +1,4 @@
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/darts}!

 describe "Darts" [
--- a/exercises/practice/darts/unitt.toml
+++ b/exercises/practice/darts/unitt.toml
@@ -0,0 +1,4 @@
+# unitt.toml - Configuration for unitt
+
+path = "tests"
+suffix = ".art"
--- a/exercises/practice/diamond/tester.art
+++ b/exercises/practice/diamond/tester.art
@@ -1,3 +1,7 @@
-import.version:2.0.1 {unitt}!
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"

-runTests.failFast findTests "tests"
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
--- a/exercises/practice/diamond/tests/test-diamond.art
+++ b/exercises/practice/diamond/tests/test-diamond.art
@@ -1,11 +1,11 @@
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/diamond}!

 describe "Diamond" [
    it "Degenerate case with a single 'A' row" [
        expects.be:'equal? @[
-            express "A"
-            express diamond 'A'
+            "A"
+            diamond 'A'
        ]
    ]

@@ -16,8 +16,8 @@ describe "Diamond" [
            " A "
        ]
        expects.be:'equal? @[
-            express expected
-            express diamond 'B'
+            expected
+            diamond 'B'
        ]
    ]

@@ -30,8 +30,8 @@ describe "Diamond" [
            "  A  "
        ]
        expects.be:'equal? @[
-            express expected
-            express diamond 'C'
+            expected
+            diamond 'C'
        ]
    ]

@@ -46,8 +46,8 @@ describe "Diamond" [
            "   A   "
        ]
        expects.be:'equal? @[
-            express expected
-            express diamond 'D'
+            expected
+            diamond 'D'
        ]
    ]

@@ -106,8 +106,8 @@ describe "Diamond" [
            "                         A                         "
        ]
        expects.be:'equal? @[
-            express expected
-            express diamond 'Z'
+            expected
+            diamond 'Z'
        ]
    ]
 ]
--- a/exercises/practice/diamond/unitt.toml
+++ b/exercises/practice/diamond/unitt.toml
@@ -0,0 +1,4 @@
+# unitt.toml - Configuration for unitt
+
+path = "tests"
+suffix = ".art"
--- a/exercises/practice/difference-of-squares/tester.art
+++ b/exercises/practice/difference-of-squares/tester.art
@@ -1,3 +1,7 @@
-import.version:2.0.1 {unitt}!
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"

-runTests.failFast findTests "tests"
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
--- a/exercises/practice/difference-of-squares/tests/test-difference-of-squares.art
+++ b/exercises/practice/difference-of-squares/tests/test-difference-of-squares.art
@@ -1,4 +1,4 @@
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/difference-of-squares}!

 describe "Difference of Squares"[
--- a/exercises/practice/difference-of-squares/unitt.toml
+++ b/exercises/practice/difference-of-squares/unitt.toml
@@ -0,0 +1,4 @@
+# unitt.toml - Configuration for unitt
+
+path = "tests"
+suffix = ".art"
--- a/exercises/practice/dnd-character/tester.art
+++ b/exercises/practice/dnd-character/tester.art
@@ -1,3 +1,7 @@
-import.version:2.0.1 {unitt}!
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"

-runTests.failFast findTests "tests"
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
--- a/exercises/practice/dnd-character/tests/test-dnd-character.art
+++ b/exercises/practice/dnd-character/tests/test-dnd-character.art
@@ -1,4 +1,4 @@
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/dnd-character}!

 describe "D&D Character" [
--- a/exercises/practice/dnd-character/unitt.toml
+++ b/exercises/practice/dnd-character/unitt.toml
@@ -0,0 +1,4 @@
+# unitt.toml - Configuration for unitt
+
+path = "tests"
+suffix = ".art"
--- a/exercises/practice/eliuds-eggs/tester.art
+++ b/exercises/practice/eliuds-eggs/tester.art
@@ -1,3 +1,7 @@
-import.version:2.0.1 {unitt}!
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"

-runTests.failFast findTests "tests"
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
--- a/exercises/practice/eliuds-eggs/tests/test-eliuds-eggs.art
+++ b/exercises/practice/eliuds-eggs/tests/test-eliuds-eggs.art
@@ -1,4 +1,4 @@
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/eliuds-eggs}!

 describe "Eliud's Eggs" [
--- a/exercises/practice/eliuds-eggs/unitt.toml
+++ b/exercises/practice/eliuds-eggs/unitt.toml
@@ -0,0 +1,4 @@
+# unitt.toml - Configuration for unitt
+
+path = "tests"
+suffix = ".art"
--- a/exercises/practice/etl/tester.art
+++ b/exercises/practice/etl/tester.art
@@ -1,3 +1,7 @@
-import.version:2.0.1 {unitt}!
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"

-runTests.failFast findTests "tests"
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
--- a/exercises/practice/etl/tests/test-etl.art
+++ b/exercises/practice/etl/tests/test-etl.art
@@ -1,4 +1,4 @@
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/etl}!

 describe "ETL" [
--- a/exercises/practice/etl/unitt.toml
+++ b/exercises/practice/etl/unitt.toml
@@ -0,0 +1,4 @@
+# unitt.toml - Configuration for unitt
+
+path = "tests"
+suffix = ".art"
--- a/exercises/practice/flatten-array/tester.art
+++ b/exercises/practice/flatten-array/tester.art
@@ -1,3 +1,7 @@
-import.version:2.0.1 {unitt}!
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"

-runTests.failFast findTests "tests"
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
--- a/exercises/practice/flatten-array/tests/test-flatten-array.art
+++ b/exercises/practice/flatten-array/tests/test-flatten-array.art
@@ -1,4 +1,4 @@
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/flatten-array}!

 describe "Flatten Array" [
--- a/exercises/practice/flatten-array/unitt.toml
+++ b/exercises/practice/flatten-array/unitt.toml
@@ -0,0 +1,4 @@
+# unitt.toml - Configuration for unitt
+
+path = "tests"
+suffix = ".art"
--- a/exercises/practice/flower-field/tester.art
+++ b/exercises/practice/flower-field/tester.art
@@ -1,3 +1,7 @@
-import.version:2.0.1 {unitt}!
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"

-runTests.failFast findTests "tests"
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
--- a/exercises/practice/flower-field/tests/test-flower-field.art
+++ b/exercises/practice/flower-field/tests/test-flower-field.art
@@ -1,18 +1,18 @@
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/flower-field}!

 describe "Flower Field"[
  it "no rows" [
    expects.be:'equal? @[
-      express []
-      express annotate []
+      []
+      annotate []
    ]
  ]

  it.skip "no columns" [
    expects.be:'equal? @[
-      express [""]
-      express annotate [""]
+      [""]
+      annotate [""]
    ]
  ]

@@ -28,8 +28,8 @@ describe "Flower Field"[
      "   "
    ]
    expects.be:'equal? @[
-      express expected
-      express annotate garden
+      expected
+      annotate garden
    ]
  ]

@@ -45,8 +45,8 @@ describe "Flower Field"[
      "***"
    ]
    expects.be:'equal? @[
-      express expected
-      express annotate garden
+      expected
+      annotate garden
    ]
  ]

@@ -62,8 +62,8 @@ describe "Flower Field"[
      "111"
    ]
    expects.be:'equal? @[
-      express expected
-      express annotate garden
+      expected
+      annotate garden
    ]
  ]

@@ -79,8 +79,8 @@ describe "Flower Field"[
      "***"
    ]
    expects.be:'equal? @[
-      express expected
-      express annotate garden
+      expected
+      annotate garden
    ]
  ]

@@ -88,8 +88,8 @@ describe "Flower Field"[
    garden: [" * * "]
    expected: ["1*2*1"]
    expects.be:'equal? @[
-      express expected
-      express annotate garden
+      expected
+      annotate garden
    ]
  ]

@@ -97,8 +97,8 @@ describe "Flower Field"[
    garden: ["*   *"]
    expected: ["*1 1*"]
    expects.be:'equal? @[
-      express expected
-      express annotate garden
+      expected
+      annotate garden
    ]
  ]

@@ -118,8 +118,8 @@ describe "Flower Field"[
      "1"
    ]
    expects.be:'equal? @[
-      express expected
-      express annotate garden
+      expected
+      annotate garden
    ]
  ]

@@ -139,8 +139,8 @@ describe "Flower Field"[
      "*"
    ]
    expects.be:'equal? @[
-      express expected
-      express annotate garden
+      expected
+      annotate garden
    ]
  ]

@@ -160,8 +160,8 @@ describe "Flower Field"[
      " 2*2 "
    ]
    expects.be:'equal? @[
-      express expected
-      express annotate garden
+      expected
+      annotate garden
    ]
  ]

@@ -183,8 +183,8 @@ describe "Flower Field"[
      "111111"
    ]
    expects.be:'equal? @[
-      express expected
-      express annotate garden
+      expected
+      annotate garden
    ]
  ]
 ]
--- a/exercises/practice/flower-field/unitt.toml
+++ b/exercises/practice/flower-field/unitt.toml
@@ -0,0 +1,4 @@
+# unitt.toml - Configuration for unitt
+
+path = "tests"
+suffix = ".art"
--- a/exercises/practice/food-chain/tester.art
+++ b/exercises/practice/food-chain/tester.art
@@ -1,3 +1,7 @@
-import.version:2.0.1 {unitt}!
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"

-runTests.failFast findTests "tests"
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
--- a/exercises/practice/food-chain/tests/test-food-chain.art
+++ b/exercises/practice/food-chain/tests/test-food-chain.art
@@ -1,46 +1,46 @@
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/food-chain}!


 describe "Food Chain" [
    it "fly" [
        expects.be:'equal? @[
-            express {
+            {
                I know an old lady who swallowed a fly.
                I don't know why she swallowed the fly. Perhaps she'll die.         
            }
-            express recite 1 1
+            recite 1 1
        ]
    ]

    it.skip "spider" [
        expects.be:'equal? @[
-            express {
+            {
                I know an old lady who swallowed a spider.
                It wriggled and jiggled and tickled inside her.
                She swallowed the spider to catch the fly.
                I don't know why she swallowed the fly. Perhaps she'll die.
            }
-            express recite 2 2
+            recite 2 2
        ]
    ]

    it.skip "bird" [
        expects.be:'equal? @[
-            express {
+            {
                I know an old lady who swallowed a bird.
                How absurd to swallow a bird!
                She swallowed the bird to catch the spider that wriggled and jiggled and tickled inside her.
                She swallowed the spider to catch the fly.
                I don't know why she swallowed the fly. Perhaps she'll die.
            }
-            express recite 3 3
+            recite 3 3
        ]
    ]

    it.skip "cat" [
        expects.be:'equal? @[
-            express {
+            {
                I know an old lady who swallowed a cat.
                Imagine that, to swallow a cat!
                She swallowed the cat to catch the bird.
@@ -48,13 +48,13 @@ describe "Food Chain" [
                She swallowed the spider to catch the fly.
                I don't know why she swallowed the fly. Perhaps she'll die.
            }
-            express recite 4 4
+            recite 4 4
        ]
    ]

    it.skip "dog" [
        expects.be:'equal? @[
-            express {
+            {
                I know an old lady who swallowed a dog.
                What a hog, to swallow a dog!
                She swallowed the dog to catch the cat.
@@ -63,13 +63,13 @@ describe "Food Chain" [
                She swallowed the spider to catch the fly.
                I don't know why she swallowed the fly. Perhaps she'll die.
            }
-            express recite 5 5
+            recite 5 5
        ]
    ]

    it.skip "goat" [
        expects.be:'equal? @[
-            express {
+            {
                I know an old lady who swallowed a goat.
                Just opened her throat and swallowed a goat!
                She swallowed the goat to catch the dog.
@@ -79,13 +79,13 @@ describe "Food Chain" [
                She swallowed the spider to catch the fly.
                I don't know why she swallowed the fly. Perhaps she'll die.
            }
-            express recite 6 6
+            recite 6 6
        ]
    ]

    it.skip "cow" [
        expects.be:'equal? @[
-            express {
+            {
                I know an old lady who swallowed a cow.
                I don't know how she swallowed a cow!
                She swallowed the cow to catch the goat.
@@ -96,23 +96,23 @@ describe "Food Chain" [
                She swallowed the spider to catch the fly.
                I don't know why she swallowed the fly. Perhaps she'll die.
            }
-            express recite 7 7
+            recite 7 7
        ]
    ]

    it.skip "horse" [
        expects.be:'equal? @[
-            express {
+            {
                I know an old lady who swallowed a horse.
                She's dead, of course!
            }
-            express recite 8 8
+            recite 8 8
        ]
    ]

    it.skip "multiple verses" [
        expects.be:'equal? @[
-            express {
+            {
                I know an old lady who swallowed a fly.
                I don't know why she swallowed the fly. Perhaps she'll die.

@@ -127,13 +127,13 @@ describe "Food Chain" [
                She swallowed the spider to catch the fly.
                I don't know why she swallowed the fly. Perhaps she'll die.
            }
-            express recite 1 3
+            recite 1 3
        ]
    ]

    it.skip "full song" [
        expects.be:'equal? @[
-            express {
+            {
                I know an old lady who swallowed a fly.
                I don't know why she swallowed the fly. Perhaps she'll die.
                
@@ -185,7 +185,7 @@ describe "Food Chain" [
                I know an old lady who swallowed a horse.
                She's dead, of course!
            }
-            express recite 1 8
+            recite 1 8
        ]
    ]
 ]
--- a/exercises/practice/food-chain/unitt.toml
+++ b/exercises/practice/food-chain/unitt.toml
@@ -0,0 +1,4 @@
+# unitt.toml - Configuration for unitt
+
+path = "tests"
+suffix = ".art"
--- a/exercises/practice/game-of-life/tester.art
+++ b/exercises/practice/game-of-life/tester.art
@@ -1,3 +1,7 @@
-import.version:2.0.1 {unitt}!
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"

-runTests.failFast findTests "tests"
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
--- a/exercises/practice/game-of-life/tests/test-game-of-life.art
+++ b/exercises/practice/game-of-life/tests/test-game-of-life.art
@@ -1,4 +1,4 @@
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/game-of-life}!

 describe "Conway's Game of Life" [
--- a/exercises/practice/game-of-life/unitt.toml
+++ b/exercises/practice/game-of-life/unitt.toml
@@ -0,0 +1,4 @@
+# unitt.toml - Configuration for unitt
+
+path = "tests"
+suffix = ".art"
--- a/exercises/practice/gigasecond/tester.art
+++ b/exercises/practice/gigasecond/tester.art
@@ -1,3 +1,7 @@
-import.version:2.0.1 {unitt}!
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"

-runTests.failFast findTests "tests"
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
--- a/exercises/practice/gigasecond/tests/test-gigasecond.art
+++ b/exercises/practice/gigasecond/tests/test-gigasecond.art
@@ -1,39 +1,39 @@
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/gigasecond}!

 describe "Gigasecond" [
    it "date only specification of time" [
        expects.be:'equal? @[
-            express to :date.format: "yyyy-MM-dd hh:mm:sszz" "2043-01-01 01:46:40+00"
-            express gigasecond to :date.format: "yyyy-MM-ddzz" "2011-04-25+00"
+            to :date.format: "yyyy-MM-dd hh:mm:sszz" "2043-01-01 01:46:40+00"
+            gigasecond to :date.format: "yyyy-MM-ddzz" "2011-04-25+00"
        ]
    ]

    it.skip "second test for date only specification of time" [
        expects.be:'equal? @[
-            express to :date.format: "yyyy-MM-dd hh:mm:sszz" "2009-02-19 01:46:40+00"
-            express gigasecond to :date.format: "yyyy-MM-ddzz" "1977-06-13+00"
+            to :date.format: "yyyy-MM-dd hh:mm:sszz" "2009-02-19 01:46:40+00"
+            gigasecond to :date.format: "yyyy-MM-ddzz" "1977-06-13+00"
        ]
    ]

    it.skip "third test for date only specification of time" [
        expects.be:'equal? @[
-            express to :date.format: "yyyy-MM-dd hh:mm:sszz" "1991-03-27 01:46:40+00"
-            express gigasecond to :date.format: "yyyy-MM-ddzz" "1959-07-19+00"
+            to :date.format: "yyyy-MM-dd hh:mm:sszz" "1991-03-27 01:46:40+00"
+            gigasecond to :date.format: "yyyy-MM-ddzz" "1959-07-19+00"
        ]
    ]

    it.skip "full time specified" [
        expects.be:'equal? @[
-            express to :date.format: "yyyy-MM-dd hh:mm:sszz" "2046-10-02 23:46:40+00"
-            express gigasecond to :date.format: "yyyy-MM-dd hh:mm:sszz" "2015-01-24 22:00:00+00"
+            to :date.format: "yyyy-MM-dd hh:mm:sszz" "2046-10-02 23:46:40+00"
+            gigasecond to :date.format: "yyyy-MM-dd hh:mm:sszz" "2015-01-24 22:00:00+00"
        ]
    ]

    it.skip "full time with day roll-over" [
        expects.be:'equal? @[
-            express to :date.format: "yyyy-MM-dd hh:mm:sszz" "2046-10-03 01:46:39+00"
-            express gigasecond to :date.format: "yyyy-MM-dd hh:mm:sszz" "2015-01-24 23:59:59+00"
+            to :date.format: "yyyy-MM-dd hh:mm:sszz" "2046-10-03 01:46:39+00"
+            gigasecond to :date.format: "yyyy-MM-dd hh:mm:sszz" "2015-01-24 23:59:59+00"
        ]
    ]
 ]
--- a/exercises/practice/gigasecond/unitt.toml
+++ b/exercises/practice/gigasecond/unitt.toml
@@ -0,0 +1,4 @@
+# unitt.toml - Configuration for unitt
+
+path = "tests"
+suffix = ".art"
--- a/exercises/practice/grains/tester.art
+++ b/exercises/practice/grains/tester.art
@@ -1,3 +1,7 @@
-import.version:2.0.1 {unitt}!
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"

-runTests.failFast findTests "tests"
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
--- a/exercises/practice/grains/tests/test-grains.art
+++ b/exercises/practice/grains/tests/test-grains.art
@@ -1,4 +1,4 @@
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/grains}!

 describe "Grains" [
--- a/exercises/practice/grains/unitt.toml
+++ b/exercises/practice/grains/unitt.toml
@@ -0,0 +1,4 @@
+# unitt.toml - Configuration for unitt
+
+path = "tests"
+suffix = ".art"
--- a/exercises/practice/hamming/tester.art
+++ b/exercises/practice/hamming/tester.art
@@ -1,3 +1,7 @@
-import.version:2.0.1 {unitt}!
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"

-runTests.failFast findTests "tests"
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
--- a/exercises/practice/hamming/tests/test-hamming.art
+++ b/exercises/practice/hamming/tests/test-hamming.art
@@ -1,4 +1,4 @@
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/hamming}!

 describe "Hamming" [
--- a/exercises/practice/hamming/unitt.toml
+++ b/exercises/practice/hamming/unitt.toml
@@ -0,0 +1,4 @@
+# unitt.toml - Configuration for unitt
+
+path = "tests"
+suffix = ".art"
--- a/exercises/practice/hello-world/tester.art
+++ b/exercises/practice/hello-world/tester.art
@@ -1,3 +1,7 @@
-import.version:2.0.1 {unitt}!
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"

-runTests.failFast findTests "tests"
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
--- a/exercises/practice/hello-world/tests/test-hello-world.art
+++ b/exercises/practice/hello-world/tests/test-hello-world.art
@@ -1,4 +1,4 @@
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/hello-world}!

 describe "Hello World!" [
--- a/exercises/practice/hello-world/unitt.toml
+++ b/exercises/practice/hello-world/unitt.toml
@@ -0,0 +1,4 @@
+# unitt.toml - Configuration for unitt
+
+path = "tests"
+suffix = ".art"
--- a/exercises/practice/high-scores/tester.art
+++ b/exercises/practice/high-scores/tester.art
@@ -1,3 +1,7 @@
-import.version:2.0.1 {unitt}!
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"

-runTests.failFast findTests "tests"
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
--- a/exercises/practice/high-scores/tests/test-high-scores.art
+++ b/exercises/practice/high-scores/tests/test-high-scores.art
@@ -1,4 +1,4 @@
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/high-scores}!

 describe "High Scores" [
--- a/exercises/practice/high-scores/unitt.toml
+++ b/exercises/practice/high-scores/unitt.toml
@@ -0,0 +1,4 @@
+# unitt.toml - Configuration for unitt
+
+path = "tests"
+suffix = ".art"
--- a/exercises/practice/house/tester.art
+++ b/exercises/practice/house/tester.art
@@ -1,3 +1,7 @@
-import.version:2.0.1 {unitt}!
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"

-runTests.failFast findTests "tests"
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
--- a/exercises/practice/house/tests/test-house.art
+++ b/exercises/practice/house/tests/test-house.art
@@ -1,20 +1,20 @@
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/house}!


 describe "House" [
    it "verse one - the house that Jack built" [
        expects.be:'equal? @[
-            express "This is the house that Jack built."
-            express recite 1 1
+            "This is the house that Jack built."
+            recite 1 1
        ]
    ]

    it.skip "verse two - the malt that lay" [

        expects.be:'equal? @[
-            express "This is the malt that lay in the house that Jack built."
-            express recite 2 2
+            "This is the malt that lay in the house that Jack built."
+            recite 2 2
        ]
    ]

@@ -26,8 +26,8 @@ describe "House" [
            "the house that Jack built."
        ]
        expects.be:'equal? @[
-            express expected
-            express recite 3 3
+            expected
+            recite 3 3
        ]
    ]

@@ -40,8 +40,8 @@ describe "House" [
            "the house that Jack built."
        ]
        expects.be:'equal? @[
-            express expected
-            express recite 4 4
+            expected
+            recite 4 4
        ]
    ]

@@ -55,8 +55,8 @@ describe "House" [
            "the house that Jack built."
        ]
        expects.be:'equal? @[
-            express expected
-            express recite 5 5
+            expected
+            recite 5 5
        ]
    ]

@@ -71,8 +71,8 @@ describe "House" [
            "the house that Jack built."
        ]
        expects.be:'equal? @[
-            express expected
-            express recite 6 6
+            expected
+            recite 6 6
        ]
    ]

@@ -88,8 +88,8 @@ describe "House" [
            "the house that Jack built."
        ]
        expects.be:'equal? @[
-            express expected
-            express recite 7 7
+            expected
+            recite 7 7
        ]
    ]

@@ -106,8 +106,8 @@ describe "House" [
            "the house that Jack built."
        ]
        expects.be:'equal? @[
-            express expected
-            express recite 8 8
+            expected
+            recite 8 8
        ]
    ]

@@ -125,8 +125,8 @@ describe "House" [
            "the house that Jack built."
        ]
        expects.be:'equal? @[
-            express expected
-            express recite 9 9
+            expected
+            recite 9 9
        ]
    ]

@@ -145,8 +145,8 @@ describe "House" [
            "the house that Jack built."
        ]
        expects.be:'equal? @[
-            express expected
-            express recite 10 10
+            expected
+            recite 10 10
        ]
    ]

@@ -166,8 +166,8 @@ describe "House" [
            "the house that Jack built."
        ]
        expects.be:'equal? @[
-            express expected
-            express recite 11 11
+            expected
+            recite 11 11
        ]
    ]

@@ -188,8 +188,8 @@ describe "House" [
            "the house that Jack built."
        ]
        expects.be:'equal? @[
-            express expected
-            express recite 12 12
+            expected
+            recite 12 12
        ]
    ]

@@ -242,8 +242,8 @@ describe "House" [
            ]                  
        ]
        expects.be:'equal? @[
-            express expected
-            express recite 4 8
+            expected
+            recite 4 8
        ]
    ]

@@ -363,8 +363,8 @@ describe "House" [
        ]
    
        expects.be:'equal? @[
-            express expected
-            express recite 1 12
+            expected
+            recite 1 12
        ]
    ]
 ]
--- a/exercises/practice/house/unitt.toml
+++ b/exercises/practice/house/unitt.toml
@@ -0,0 +1,4 @@
+# unitt.toml - Configuration for unitt
+
+path = "tests"
+suffix = ".art"
--- a/exercises/practice/isbn-verifier/tester.art
+++ b/exercises/practice/isbn-verifier/tester.art
@@ -1,3 +1,7 @@
-import.version:2.0.1 {unitt}!
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"

-runTests.failFast findTests "tests"
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
--- a/exercises/practice/isbn-verifier/tests/test-isbn-verifier.art
+++ b/exercises/practice/isbn-verifier/tests/test-isbn-verifier.art
@@ -1,4 +1,4 @@
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/isbn-verifier}!

 describe "ISBN Verifier" [
--- a/exercises/practice/isbn-verifier/unitt.toml
+++ b/exercises/practice/isbn-verifier/unitt.toml
@@ -0,0 +1,4 @@
+# unitt.toml - Configuration for unitt
+
+path = "tests"
+suffix = ".art"
--- a/exercises/practice/isogram/tester.art
+++ b/exercises/practice/isogram/tester.art
@@ -1,3 +1,7 @@
-import.version:2.0.1 {unitt}!
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"

-runTests.failFast findTests "tests"
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
--- a/exercises/practice/isogram/tests/test-isogram.art
+++ b/exercises/practice/isogram/tests/test-isogram.art
@@ -1,4 +1,4 @@
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/isogram}!

 describe "Isogram" [
--- a/exercises/practice/isogram/unitt.toml
+++ b/exercises/practice/isogram/unitt.toml
@@ -0,0 +1,4 @@
+# unitt.toml - Configuration for unitt
+
+path = "tests"
+suffix = ".art"
--- a/exercises/practice/kindergarten-garden/tester.art
+++ b/exercises/practice/kindergarten-garden/tester.art
@@ -1,3 +1,7 @@
-import.version:2.0.1 {unitt}!
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"

-runTests.failFast findTests "tests"
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
--- a/exercises/practice/kindergarten-garden/tests/test-kindergarten-garden.art
+++ b/exercises/practice/kindergarten-garden/tests/test-kindergarten-garden.art
@@ -1,4 +1,4 @@
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/kindergarten-garden}!

 describe "Kindergarten Garden" [
--- a/exercises/practice/kindergarten-garden/unitt.toml
+++ b/exercises/practice/kindergarten-garden/unitt.toml
@@ -0,0 +1,4 @@
+# unitt.toml - Configuration for unitt
+
+path = "tests"
+suffix = ".art"
--- a/exercises/practice/largest-series-product/tester.art
+++ b/exercises/practice/largest-series-product/tester.art
@@ -1,3 +1,7 @@
-import.version:2.0.1 {unitt}!
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"

-runTests.failFast findTests "tests"
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
--- a/exercises/practice/largest-series-product/tests/test-largest-series-product.art
+++ b/exercises/practice/largest-series-product/tests/test-largest-series-product.art
@@ -1,4 +1,4 @@
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/largest-series-product}!

 describe "Largest Series Product" [
--- a/exercises/practice/largest-series-product/unitt.toml
+++ b/exercises/practice/largest-series-product/unitt.toml
@@ -0,0 +1,4 @@
+# unitt.toml - Configuration for unitt
+
+path = "tests"
+suffix = ".art"
--- a/exercises/practice/leap/tester.art
+++ b/exercises/practice/leap/tester.art
@@ -1,3 +1,7 @@
-import.version:2.0.1 {unitt}!
+exe: switch "windows" = sys\os 
+    -> "unitt.bat" 
+    -> "unitt"

-runTests.failFast findTests "tests"
+fullpath: normalize ~"|path\home|/.arturo/packages/bin/|exe|"
+code: execute.code.directly ~"|fullpath|"
+panic.unstyled.code: code ""
--- a/exercises/practice/leap/tests/test-leap.art
+++ b/exercises/practice/leap/tests/test-leap.art
@@ -1,4 +1,4 @@
-import.version:2.0.1 {unitt}!
+import.version:3.0.0 {unitt}! 
 import {src/leap}!

 describe "Leap" [
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
András B Nagy	dbfe69ed8c	Pin CI to specific Arturo nightly (#179 ) Some checks failed Configlet / configlet (push) Has been cancelled Details Test / ci (push) Has been cancelled Details Tools / sync-labels (push) Has been cancelled Details * Pin CI to same nightly as test runner	2025-10-29 20:52:41 -07:00
Glenn Jackman	1735fc16cd	Tournament: change the unicode medium vertical bars back to ascii vertical bars (#216 )	2025-10-29 19:04:33 -07:00
Glenn Jackman	7ece698826	some usability improvements to verify-exercises script (#214 )	2025-10-29 12:22:22 -07:00
Glenn Jackman	9cffe1a402	Update unitt version for line-up exercise (#215 )	2025-10-29 10:56:01 -07:00
András B Nagy	6618e61587	Revert invalidator comment to force invalidation (#212 )	2025-10-28 16:49:38 -07:00
András B Nagy	8d1e23c238	Prepare for a mass invalidation of existing solutions (#211 )	2025-10-28 16:43:07 -07:00
András B Nagy	393fd50074	Fix Unitt installation command in TESTS.md (#210 ) Corrected the installation command for Unitt in the documentation.	2025-10-28 15:50:35 -07:00
András B Nagy	6133a86edb	Update docs for unitt 3 (#209 ) * Bump unitt version number * Remove no longer relevant `express` info * Update test output examples * Add note about pre-installing unitt	2025-10-25 22:53:58 -07:00
András B Nagy	23c5f3a9ec	Upgrade track to unitt 3 (#208 ) [no important files changed]	2025-10-25 22:49:44 -07:00
András B Nagy	c9536ab350	Make CI compatible for Unitt 3.x (#207 ) * Ignore auto-generated .unitt folders * Update `acronym` to unitt 3 * Only show detailed output for failing CI tests * Revert "Update `acronym` to unitt 3" This reverts commit c4972099e3133ed623cbf8c2131310a07fb5f29c.	2025-10-20 23:04:31 -07:00