Add new test configuration fields.

test/runner/configuration/top_level_test.dart

 // Copyright (c) 2016, 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.
 
 @TestOn("vm")
 
 import 'dart:convert';
 
 import 'package:path/path.dart' as p;
 import 'package:scheduled_test/descriptor.dart' as d;
@@ skipping 54 matching lines @@
     """).create();
 
     var test = runTest(["-p", "chrome", "--verbose-trace", "test.dart"]);
     test.stdout.fork().expect(never(endsWith(" main.<fn>")));
     test.stdout.fork().expect(never(contains("package:test")));
     test.stdout.fork().expect(never(contains("dart:async/zone.dart")));
     test.stdout.expect(consumeThrough(contains("-1: Some tests failed.")));
     test.shouldExit(1);
   }, tags: 'chrome');
 
+  test("skips tests with skip: true", () {
+    d.file("dart_test.yaml", JSON.encode({
+      "skip": true
+    })).create();
+
+    d.file("test.dart", """
+      import 'package:test/test.dart';
+
+      void main() {
+        test("test", () {});
+      }
+    """).create();
+
+    var test = runTest(["test.dart"]);
+    test.stdout.expect(consumeThrough(contains('All tests skipped.')));
+    test.shouldExit(0);
+  });
+
+  test("skips tests with skip: reason", () {
+    d.file("dart_test.yaml", JSON.encode({
+      "skip": "Tests are boring."
+    })).create();
+
+    d.file("test.dart", """
+      import 'package:test/test.dart';
+
+      void main() {
+        test("test", () {});
+      }
+    """).create();
+
+    var test = runTest(["test.dart"]);
+    test.stdout.expect(consumeThrough(contains('Tests are boring.')));
+    test.stdout.expect(consumeThrough(contains('All tests skipped.')));
+    test.shouldExit(0);
+  });
+
+  test("runs tests on a platform that matches test_on", () {
+    d.file("dart_test.yaml", JSON.encode({
+      "test_on": "vm"
+    })).create();
+
+    d.file("test.dart", """
+      import 'package:test/test.dart';
+
+      void main() {
+        test("test", () {});
+      }
+    """).create();
+
+    var test = runTest(["test.dart"]);
+    test.stdout.expect(consumeThrough(contains('All tests passed!')));
+    test.shouldExit(0);
+  });
+
+  test("doesn't run tests on a platform that doesn't match test_on", () {
+    d.file("dart_test.yaml", JSON.encode({
+      "test_on": "chrome"
+    })).create();
+
+    d.file("test.dart", """
+      import 'package:test/test.dart';
+
+      void main() {
+        test("test", () {});
+      }
+    """).create();
+
+    var test = runTest(["test.dart"]);
+    test.stdout.expect(consumeThrough(contains('No tests ran.')));
+    test.shouldExit(0);
+  });
+
   test("uses the specified reporter", () {
     d.file("dart_test.yaml", JSON.encode({
       "reporter": "json"
     })).create();
 
     d.file("test.dart", """
       import 'package:test/test.dart';
 
       void main() {
         test("success", () {});
@@ skipping 216 matching lines @@
           test("failure", () => throw "oh no");
         }
       """)
     ]).create();
 
     var test = runTest([]);
     test.stdout.expect(consumeThrough(contains('All tests passed!')));
     test.shouldExit(0);
   });
 }