Move browser tests that require installation into their own files.

test/runner/browser/firefox_test.dart

 // 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.
 
 @TestOn("vm")
 
 import 'dart:async';
+import 'dart:io';
 
+import 'package:path/path.dart' as p;
 import 'package:test/test.dart';
 import 'package:test/src/runner/browser/firefox.dart';
 import 'package:test/src/util/io.dart';
 import 'package:shelf/shelf.dart' as shelf;
 import 'package:shelf/shelf_io.dart' as shelf_io;
 import 'package:shelf_web_socket/shelf_web_socket.dart';
 
+import '../../io.dart';
 import '../../utils.dart';
 
+String _sandbox;
+
 void main() {
+  setUp(() {
+    _sandbox = createTempDir();
+  });
+
+  tearDown(() {
+    new Directory(_sandbox).deleteSync(recursive: true);
+  });
+
   group("running JavaScript", () {
     // The JavaScript to serve in the server. We use actual JavaScript here to
     // avoid the pain of compiling to JS in a test
     var javaScript;
 
     var servePage = (request) {
       var path = request.url.path;
 
       // We support both shelf 0.5.x and 0.6.x. The former has a leading "/"
       // here, the latter does not.
@@ skipping 103 matching lines @@
       return firefox.close().whenComplete(server.close);
     });
   });
 
   test("reports an error in onExit", () {
     var firefox = new Firefox("http://dart-lang.org",
         executable: "_does_not_exist");
     expect(firefox.onExit, throwsA(isApplicationException(startsWith(
         "Failed to start Firefox: No such file or directory"))));
   });
+
+  group("can run successful tests", () {
+    setUp(() {
+      new File(p.join(_sandbox, "test.dart")).writeAsStringSync("""
+import 'package:test/test.dart';
+
+void main() {
+  test("success", () {});
 }
+""");
+    });
+
+    test("itself", () {
+      var result = _runTest(["-p", "firefox", "test.dart"]);
+      expect(result.exitCode, equals(0));
+    });
+
+    test("alongside another browser", () {
+      var result = _runTest(["-p", "firefox", "-p", "chrome", "test.dart"]);
+      expect("Compiling".allMatches(result.stdout), hasLength(1));
+      expect(result.exitCode, equals(0));
+    });
+  });
+
+  test("can run failing tests", () {
+    new File(p.join(_sandbox, "test.dart")).writeAsStringSync("""
+import 'package:test/test.dart';
+
+void main() {
+  test("failure", () => throw new TestFailure("oh no"));
+}
+""");
+
+    var result = _runTest(["-p", "firefox", "test.dart"]);
+    expect(result.exitCode, equals(1));
+  });
+}
+
+ProcessResult _runTest(List<String> args) =>
+    runTest(args, workingDirectory: _sandbox);