Begin adding some test runner types to std. Issue #428

Author: brson

src/lib/std.rc

@@ -87,6 +87,7 @@ mod term;
 mod time;
 mod smallintmap;
 mod ptr;
+mod test;
 
 // Local Variables:
 // mode: rust;

src/lib/test.rs

@@ -0,0 +1,56 @@
+// Support code for rustc's built in test runner generator. Currently,
+// none of this is meant for users. It is intended to support the
+// simplest interface possible for representing and running tests
+// while providing a base that other test frameworks may build off of.
+
+export test_name;
+export test_fn;
+export test_desc;
+export test_main;
+
+// The name of a test. By convention this follows the rules for rust
+// paths, i.e it should be a series of identifiers seperated by double
+// colons. This way if some test runner wants to arrange the tests
+// heirarchically it may.
+type test_name = str;
+
+// A function that runs a test. If the function returns successfully,
+// 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 = fn();
+
+// The definition of a single test. A test runner will run a list of
+// these.
+type test_desc = rec(test_name name,
+                     test_fn fn);
+
+// The default console test runner. It accepts the command line
+// arguments and a vector of test_descs (generated at compile time).
+fn test_main(&vec[str] args, &test_desc[] tests) -> int {
+    if (run_tests(tests)) {
+        ret 0;
+    } else {
+        ret -1;
+    }
+}
+
+fn run_tests(&test_desc[] tests) -> bool {
+    auto out = io::stdout();
+
+    for (test_desc test in tests) {
+        out.write_line("running " + test.name);
+    }
+
+    ret true;
+}
+
+
+// Local Variables:
+// mode: rust;
+// fill-column: 78;
+// indent-tabs-mode: nil
+// c-basic-offset: 4
+// buffer-file-coding-system: utf-8-unix
+// compile-command: "make -k -C .. 2>&1 | sed -e 's/\\/x\\//x:\\//g'";
+// End: