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Use fn~ to simplify the core::test interface

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This commit is contained in:
Brian Anderson
2012-01-19 13:00:30 -08:00
parent c2dba1799f
commit f15182fffc
4 changed files with 63 additions and 114 deletions
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114
src/libstd/test.rs
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@@ -9,7 +9,6 @@ import core::ctypes;
export test_name;
export test_fn;
export default_test_fn;
export test_desc;
export test_main;
export test_result;
@@ -18,14 +17,7 @@ export tr_ok;
export tr_failed;
export tr_ignored;
export run_tests_console;
export run_tests_console_;
export run_test;
export filter_tests;
export parse_opts;
export test_to_task;
export default_test_to_task;
export configure_test_task;
export joinable;
#[abi = "cdecl"]
native mod rustrt {
@@ -42,22 +34,20 @@ type test_name = str;
// the test succeeds; if the function fails then the test fails. We
// may need to come up with a more clever definition of test in order
// to support isolation of tests into tasks.
type test_fn<T> = T;
type default_test_fn = test_fn<fn~()>;
type test_fn = fn~();
// The definition of a single test. A test runner will run a list of
// these.
type test_desc<T> = {
type test_desc = {
name: test_name,
fn: test_fn<T>,
fn: test_fn,
ignore: bool,
should_fail: bool
};
// The default console test runner. It accepts the command line
// arguments and a vector of test_descs (generated at compile time).
fn test_main(args: [str], tests: [test_desc<default_test_fn>]) {
fn test_main(args: [str], tests: [test_desc]) {
check (vec::is_not_empty(args));
let opts =
alt parse_opts(args) {
@@ -96,22 +86,9 @@ fn parse_opts(args: [str]) : vec::is_not_empty(args) -> opt_res {
tag test_result { tr_ok; tr_failed; tr_ignored; }
type joinable = (task::task, comm::port<task::task_notification>);
// To get isolation and concurrency tests have to be run in their own tasks.
// In cases where test functions are closures it is not ok to just dump them
// into a task and run them, so this transformation gives the caller a chance
// to create the test task.
type test_to_task<T> = fn@(test_fn<T>) -> joinable;
// A simple console test runner
fn run_tests_console(opts: test_opts,
tests: [test_desc<default_test_fn>]) -> bool {
run_tests_console_(opts, tests, default_test_to_task)
}
fn run_tests_console_<T: copy>(opts: test_opts, tests: [test_desc<T>],
to_task: test_to_task<T>) -> bool {
tests: [test_desc]) -> bool {
type test_state =
@{out: io::writer,
@@ -120,9 +97,9 @@ fn run_tests_console_<T: copy>(opts: test_opts, tests: [test_desc<T>],
mutable passed: uint,
mutable failed: uint,
mutable ignored: uint,
mutable failures: [test_desc<T>]};
mutable failures: [test_desc]};
fn callback<T: copy>(event: testevent<T>, st: test_state) {
fn callback(event: testevent, st: test_state) {
alt event {
te_filtered(filtered_tests) {
st.total = vec::len(filtered_tests);
@@ -161,14 +138,14 @@ fn run_tests_console_<T: copy>(opts: test_opts, tests: [test_desc<T>],
mutable ignored: 0u,
mutable failures: []};
run_tests(opts, tests, to_task, bind callback(_, st));
run_tests(opts, tests, bind callback(_, st));
assert (st.passed + st.failed + st.ignored == st.total);
let success = st.failed == 0u;
if !success {
st.out.write_line("\nfailures:");
for test: test_desc<T> in st.failures {
for test: test_desc in st.failures {
let testname = test.name; // Satisfy alias analysis
st.out.write_line(#fmt[" %s", testname]);
}
@@ -209,22 +186,20 @@ fn run_tests_console_<T: copy>(opts: test_opts, tests: [test_desc<T>],
fn use_color() -> bool { ret get_concurrency() == 1u; }
tag testevent<T> {
te_filtered([test_desc<T>]);
te_wait(test_desc<T>);
te_result(test_desc<T>, test_result);
tag testevent {
te_filtered([test_desc]);
te_wait(test_desc);
te_result(test_desc, test_result);
}
fn run_tests<T: copy>(opts: test_opts, tests: [test_desc<T>],
to_task: test_to_task<T>,
callback: fn@(testevent<T>)) {
fn run_tests(opts: test_opts, tests: [test_desc],
callback: fn@(testevent)) {
let filtered_tests = filter_tests(opts, tests);
callback(te_filtered(filtered_tests));
// It's tempting to just spawn all the tests at once but that doesn't
// provide a great user experience because you might sit waiting for the
// result of a particular test for an unusually long amount of time.
// It's tempting to just spawn all the tests at once, but since we have many
// tests that run in other processes we would be making a big mess.
let concurrency = get_concurrency();
#debug("using %u test tasks", concurrency);
let total = vec::len(filtered_tests);
@@ -234,7 +209,7 @@ fn run_tests<T: copy>(opts: test_opts, tests: [test_desc<T>],
while wait_idx < total {
while vec::len(futures) < concurrency && run_idx < total {
futures += [run_test(filtered_tests[run_idx], to_task)];
futures += [run_test(filtered_tests[run_idx])];
run_idx += 1u;
}
@@ -249,8 +224,8 @@ fn run_tests<T: copy>(opts: test_opts, tests: [test_desc<T>],
fn get_concurrency() -> uint { rustrt::sched_threads() }
fn filter_tests<T: copy>(opts: test_opts,
tests: [test_desc<T>]) -> [test_desc<T>] {
fn filter_tests(opts: test_opts,
tests: [test_desc]) -> [test_desc] {
let filtered = tests;
// Remove tests that don't match the test filter
@@ -263,8 +238,8 @@ fn filter_tests<T: copy>(opts: test_opts,
option::none { "" }
};
fn filter_fn<T: copy>(test: test_desc<T>, filter_str: str) ->
option::t<test_desc<T>> {
fn filter_fn(test: test_desc, filter_str: str) ->
option::t<test_desc> {
if str::find(test.name, filter_str) >= 0 {
ret option::some(test);
} else { ret option::none; }
@@ -279,7 +254,7 @@ fn filter_tests<T: copy>(opts: test_opts,
filtered = if !opts.run_ignored {
filtered
} else {
fn filter<T: copy>(test: test_desc<T>) -> option::t<test_desc<T>> {
fn filter(test: test_desc) -> option::t<test_desc> {
if test.ignore {
ret option::some({name: test.name,
fn: test.fn,
@@ -294,7 +269,7 @@ fn filter_tests<T: copy>(opts: test_opts,
// Sort the tests alphabetically
filtered =
{
fn lteq<T>(t1: test_desc<T>, t2: test_desc<T>) -> bool {
fn lteq(t1: test_desc, t2: test_desc) -> bool {
str::lteq(t1.name, t2.name)
}
sort::merge_sort(bind lteq(_, _), filtered)
@@ -303,15 +278,14 @@ fn filter_tests<T: copy>(opts: test_opts,
ret filtered;
}
type test_future<T> = {test: test_desc<T>, wait: fn@() -> test_result};
type test_future = {test: test_desc, wait: fn@() -> test_result};
fn run_test<T: copy>(test: test_desc<T>,
to_task: test_to_task<T>) -> test_future<T> {
fn run_test(test: test_desc) -> test_future {
if test.ignore {
ret {test: test, wait: fn@() -> test_result { tr_ignored }};
}
let test_task = to_task(test.fn);
let test_task = test_to_task(test.fn);
ret {test: test,
wait: fn@() -> test_result {
alt task::join(test_task) {
@@ -330,7 +304,7 @@ fn run_test<T: copy>(test: test_desc<T>,
// We need to run our tests in another task in order to trap test failures.
// This function only works with functions that don't contain closures.
fn default_test_to_task(&&f: default_test_fn) -> joinable {
fn test_to_task(&&f: test_fn) -> task::joinable_task {
ret task::spawn_joinable(fn~[copy f]() {
configure_test_task();
f();
@@ -356,9 +330,9 @@ mod tests {
ignore: true,
should_fail: false
};
let future = test::run_test(desc, test::default_test_to_task);
let future = run_test(desc);
let result = future.wait();
assert result != test::tr_ok;
assert result != tr_ok;
}
#[test]
@@ -370,8 +344,8 @@ mod tests {
ignore: true,
should_fail: false
};
let res = test::run_test(desc, test::default_test_to_task).wait();
assert (res == test::tr_ignored);
let res = run_test(desc).wait();
assert (res == tr_ignored);
}
#[test]
@@ -384,8 +358,8 @@ mod tests {
ignore: false,
should_fail: true
};
let res = test::run_test(desc, test::default_test_to_task).wait();
assert res == test::tr_ok;
let res = run_test(desc).wait();
assert res == tr_ok;
}
#[test]
@@ -397,15 +371,15 @@ mod tests {
ignore: false,
should_fail: true
};
let res = test::run_test(desc, test::default_test_to_task).wait();
assert res == test::tr_failed;
let res = run_test(desc).wait();
assert res == tr_failed;
}
#[test]
fn first_free_arg_should_be_a_filter() {
let args = ["progname", "filter"];
check (vec::is_not_empty(args));
let opts = alt test::parse_opts(args) { either::left(o) { o } };
let opts = alt parse_opts(args) { either::left(o) { o } };
assert (str::eq("filter", option::get(opts.filter)));
}
@@ -413,7 +387,7 @@ mod tests {
fn parse_ignored_flag() {
let args = ["progname", "filter", "--ignored"];
check (vec::is_not_empty(args));
let opts = alt test::parse_opts(args) { either::left(o) { o } };
let opts = alt parse_opts(args) { either::left(o) { o } };
assert (opts.run_ignored);
}
@@ -424,9 +398,9 @@ mod tests {
let opts = {filter: option::none, run_ignored: true};
let tests =
[{name: "1", fn: fn@() { }, ignore: true, should_fail: false},
{name: "2", fn: fn@() { }, ignore: false, should_fail: false}];
let filtered = test::filter_tests(opts, tests);
[{name: "1", fn: fn~() { }, ignore: true, should_fail: false},
{name: "2", fn: fn~() { }, ignore: false, should_fail: false}];
let filtered = filter_tests(opts, tests);
assert (vec::len(filtered) == 1u);
assert (filtered[0].name == "1");
@@ -446,7 +420,7 @@ mod tests {
"test::sort_tests"];
let tests =
{
let testfn = fn@() { };
let testfn = fn~() { };
let tests = [];
for name: str in names {
let test = {name: name, fn: testfn, ignore: false,
@@ -455,7 +429,7 @@ mod tests {
}
tests
};
let filtered = test::filter_tests(opts, tests);
let filtered = filter_tests(opts, tests);
let expected =
["int::test_pow", "int::test_to_str", "sha1::test",
@@ -469,7 +443,7 @@ mod tests {
for (a, b) in pairs { assert (a == b.name); }
}
}
}