pkg/args: a bunch of test cleanup

pkg/args/test/shared.dart

Index: pkg/args/test/shared.dart
diff --git a/pkg/args/test/shared.dart b/pkg/args/test/shared.dart
new file mode 100644
index 0000000000000000000000000000000000000000..3ceb4d53c14a9ef9a9ddc58123267a51c915a3c7
--- /dev/null
+++ b/pkg/args/test/shared.dart
@@ -0,0 +1,12 @@
+library args_test_shared;

[Bob Nystrom, 2013/11/26 19:07:41]

Couple of things:

- Add the copyright header above this.
- Also, "_" -> "." in the library name.
- Also, how about calling this file "utils.dart"? I think that's what some of
the other packages use.

+
+import 'package:unittest/unittest.dart';
+import 'package:args/args.dart';
+
+void throwsIllegalArg(function, {String reason: null}) {
+  expect(function, throwsArgumentError, reason: reason);
+}
+
+void throwsFormat(ArgParser parser, List<String> args) {
+  expect(() => parser.parse(args), throwsFormatException);
+}