Create a glob package.

pkg/glob/test/parse_test.dart

+// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'package:glob/glob.dart';
+import 'package:unittest/unittest.dart';
+
+void main() {
+  test("supports backslash-escaped characters", () {
+    expect(r"\*[]{,}?()", contains(new Glob(r"\\\*\[\]\{\,\}\?\(\)")));
+  });
+
+  test("disallows an empty glob", () {
+    expect(() => new Glob(""), throwsFormatException);
+  });
+
+  group("range", () {
+    test("supports either ^ or ! for negated ranges", () {
+      var bang = new Glob("fo[!a-z]");
+      expect("foo", isNot(contains(bang)));
+      expect("fo2", contains(bang));
+
+      var caret = new Glob("fo[^a-z]");
+      expect("foo", isNot(contains(bang)));
+      expect("fo2", contains(bang));
+    });
+
+    test("supports backslash-escaped characters", () {
+      var glob = new Glob(r"fo[\*\--\]]");
+      expect("fo]", contains(glob));
+      expect("fo-", contains(glob));
+      expect("fo*", contains(glob));
+    });
+
+    test("disallows inverted ranges", () {
+      expect(() => new Glob(r"[z-a]"), throwsFormatException);
+    });
+
+    test("disallows empty ranges", () {
+      expect(() => new Glob(r"[]"), throwsFormatException);
+    });
+
+    test("disallows unclosed ranges", () {
+      expect(() => new Glob(r"[abc"), throwsFormatException);
+      expect(() => new Glob(r"[-"), throwsFormatException);
+    });
+
+    test("disallows dangling ]", () {
+      expect(() => new Glob(r"abc]"), throwsFormatException);
+    });
+  });
+
+  group("options", () {
+    test("allows empty branches", () {
+      var glob = new Glob("foo{,bar}");
+      expect("foo", contains(glob));
+      expect("foobar", contains(glob));
+    });
+
+    test("disallows empty options", () {
+      expect(() => new Glob("{}"), throwsFormatException);
+    });
+
+    test("disallows single options", () {
+      expect(() => new Glob("{foo}"), throwsFormatException);
+    });
+
+    test("disallows unclosed options", () {
+      expect(() => new Glob("{foo,bar"), throwsFormatException);
+      expect(() => new Glob("{foo,"), throwsFormatException);
+    });
+
+    test("disallows dangling }", () {
+      expect(() => new Glob("foo}"), throwsFormatException);
+    });
+
+    test("disallows dangling ] in options", () {
+      expect(() => new Glob(r"{abc]}"), throwsFormatException);
+    });
+  });
+
+  test("disallows unescaped parens", () {
+    expect(() => new Glob("foo(bar"), throwsFormatException);
+    expect(() => new Glob("foo)bar"), throwsFormatException);
+  });
+}