add two-fer exercise (#18)

* add two-fer exercise

* fix

abaplint_exercises.json

@@ -349,27 +349,9 @@
     "max_one_statement": true,
     "message_exists": true,
     "method_implemented_twice": true,
-    "method_length": {
-      "exclude": [],
-      "severity": "Error",
-      "statements": 100,
-      "errorWhenEmpty": true,
-      "ignoreTestClasses": false,
-      "checkForms": true
-    },
+    "method_length": false,
     "method_overwrites_builtin": true,
-    "method_parameter_names": {
-      "exclude": [],
-      "severity": "Error",
-      "patternKind": "required",
-      "ignoreNames": [],
-      "ignorePatterns": [],
-      "ignoreExceptions": true,
-      "importing": "^I._.+$",
-      "returning": "^R._.+$",
-      "changing": "^C._.+$",
-      "exporting": "^E._.+$"
-    },
+    "method_parameter_names": false,
     "mix_returning": true,
     "modify_only_own_db_tables": {
       "exclude": [],
@@ -550,11 +532,7 @@
       "severity": "Error",
       "skipNames": []
     },
-    "unused_variables": {
-      "exclude": [],
-      "severity": "Error",
-      "skipNames": []
-    },
+    "unused_variables": false,
     "use_bool_expression": true,
     "use_class_based_exceptions": true,
     "use_line_exists": true,

abaplint_solutions.json

@@ -349,27 +349,9 @@
     "max_one_statement": true,
     "message_exists": true,
     "method_implemented_twice": true,
-    "method_length": {
-      "exclude": [],
-      "severity": "Error",
-      "statements": 100,
-      "errorWhenEmpty": true,
-      "ignoreTestClasses": false,
-      "checkForms": true
-    },
+    "method_length": false,
     "method_overwrites_builtin": true,
-    "method_parameter_names": {
-      "exclude": [],
-      "severity": "Error",
-      "patternKind": "required",
-      "ignoreNames": [],
-      "ignorePatterns": [],
-      "ignoreExceptions": true,
-      "importing": "^I._.+$",
-      "returning": "^R._.+$",
-      "changing": "^C._.+$",
-      "exporting": "^E._.+$"
-    },
+    "method_parameter_names": false,
     "mix_returning": true,
     "modify_only_own_db_tables": {
       "exclude": [],

config.json

@@ -28,6 +28,14 @@
         "practices": [],
         "prerequisites": [],
         "difficulty": 1
+      },
+      {
+        "slug": "two-fer",
+        "name": "Two Fer",
+        "uuid": "4606da73-f376-409e-8526-f95bec03643b",
+        "practices": [],
+        "prerequisites": [],
+        "difficulty": 1
       }
     ]
   },

exercises/practice/two-fer/.docs/instructions.md

@@ -0,0 +1,26 @@
+# Description
+
+`Two-fer` or `2-fer` is short for two for one. One for you and one for me.
+
+Given a name, return a string with the message:
+
+```text
+One for name, one for me.
+```
+
+Where "name" is the given name.
+
+However, if the name is missing, return the string:
+
+```text
+One for you, one for me.
+```
+
+Here are some examples:
+
+|Name    |String to return
+|:-------|:------------------
+|Alice   |One for Alice, one for me.
+|Bob     |One for Bob, one for me.
+|        |One for you, one for me.
+|Zaphod  |One for Zaphod, one for me.

exercises/practice/two-fer/.meta/config.json

@@ -0,0 +1,12 @@
+{
+  "blurb": "Create a sentence of the form \"One for X, one for me.\".",
+  "authors": ["larshp"],
+  "contributors": [
+  ],
+  "files": {
+    "solution": ["zcl_two_fer.clas.abap"],
+    "test": ["zcl_two_fer.clas.testclasses.abap"],
+    "example": [".meta/zcl_two_fer.clas.abap"]
+  },
+  "source_url": "https://github.com/exercism/problem-specifications/issues/757"
+}

exercises/practice/two-fer/.meta/zcl_two_fer.clas.abap

@@ -0,0 +1,20 @@
+CLASS zcl_two_fer DEFINITION PUBLIC.
+  PUBLIC SECTION.
+    METHODS two_fer
+      IMPORTING
+        input         TYPE string OPTIONAL
+      RETURNING
+        VALUE(result) TYPE string.
+ENDCLASS.
+
+CLASS zcl_two_fer IMPLEMENTATION.
+
+  METHOD two_fer.
+    DATA(name) = input.
+    IF name IS INITIAL.
+      name = 'you'.
+    ENDIF.
+    result = |One for { name }, one for me.|.
+  ENDMETHOD.
+
+ENDCLASS.

exercises/practice/two-fer/zcl_two_fer.clas.abap

@@ -0,0 +1,16 @@
+CLASS zcl_two_fer DEFINITION PUBLIC.
+  PUBLIC SECTION.
+    METHODS two_fer
+      IMPORTING
+        input         TYPE string OPTIONAL
+      RETURNING
+        VALUE(result) TYPE string.
+ENDCLASS.
+
+CLASS zcl_two_fer IMPLEMENTATION.
+
+  METHOD two_fer.
+* add solution here
+  ENDMETHOD.
+
+ENDCLASS.

exercises/practice/two-fer/zcl_two_fer.clas.testclasses.abap

@@ -0,0 +1,36 @@
+CLASS ltcl_two_fer DEFINITION FOR TESTING RISK LEVEL HARMLESS DURATION SHORT FINAL.
+
+  PRIVATE SECTION.
+    DATA cut TYPE REF TO zcl_two_fer.
+    METHODS setup.
+    METHODS test_empty FOR TESTING RAISING cx_static_check.
+    METHODS test_alice FOR TESTING RAISING cx_static_check.
+    METHODS test_bob FOR TESTING RAISING cx_static_check.
+
+ENDCLASS.
+
+CLASS ltcl_two_fer IMPLEMENTATION.
+
+  METHOD setup.
+    cut = NEW zcl_two_fer( ).
+  ENDMETHOD.
+
+  METHOD test_empty.
+    cl_abap_unit_assert=>assert_equals(
+      act = cut->two_fer( )
+      exp = 'One for you, one for me.' ).
+  ENDMETHOD.
+
+  METHOD test_alice.
+    cl_abap_unit_assert=>assert_equals(
+      act = cut->two_fer( 'Alice' )
+      exp = 'One for Alice, one for me.' ).
+  ENDMETHOD.
+
+  METHOD test_bob.
+    cl_abap_unit_assert=>assert_equals(
+      act = cut->two_fer( 'Bob' )
+      exp = 'One for Bob, one for me.' ).
+  ENDMETHOD.
+
+ENDCLASS.