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packages/initialize/test/initializer_type_filter_test.dart

Index: packages/initialize/test/initializer_type_filter_test.dart
diff --git a/packages/initialize/test/initializer_type_filter_test.dart b/packages/initialize/test/initializer_type_filter_test.dart
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index 0000000000000000000000000000000000000000..b5ebb92ef7d3c7fa46d2fc23349b438bfc61a666
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+++ b/packages/initialize/test/initializer_type_filter_test.dart
@@ -0,0 +1,59 @@
+// Copyright (c) 2015, 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.
+library initialize.initializer_type_filter_test;
+
+import 'package:initialize/initialize.dart';
+import 'package:unittest/unittest.dart';
+import 'package:unittest/compact_vm_config.dart';
+
+// Initializers will mess with this value, and it gets reset to 0 at the
+// start of every test.
+var total;
+
+main() {
+  useCompactVMConfiguration();
+
+  setUp(() {
+    total = 0;
+  });
+
+  test('filter option limits which types of annotations will be ran', () {
+    return run(typeFilter: const [_Adder]).then((_) {
+      expect(total, 2);
+    }).then((_) => run(typeFilter: const [_Subtractor])).then((_) {
+      expect(total, 0);
+    }).then((_) => run(typeFilter: const [_Adder])).then((_) {
+      // Sanity check, future calls should be no-ops
+      expect(total, 0);
+    }).then((_) => run(typeFilter: const [_Subtractor])).then((_) {
+      expect(total, 0);
+    });
+  });
+}
+
+@adder
+a() {}
+@subtractor
+b() {}
+@adder
+@subtractor
+c() {}
+
+// Initializer that increments `total` by one.
+class _Adder implements Initializer<dynamic> {
+  const _Adder();
+
+  @override
+  initialize(_) => total++;
+}
+const adder = const _Adder();
+
+// Initializer that decrements `total` by one.
+class _Subtractor implements Initializer<dynamic> {
+  const _Subtractor();
+
+  @override
+  initialize(_) => total--;
+}
+const subtractor = const _Subtractor();