Support PhantomJS.

test/runner/browser/runner_test.dart

Index: test/runner/browser/runner_test.dart
diff --git a/test/runner/browser/runner_test.dart b/test/runner/browser/runner_test.dart
index e2c4072f2aa8b0c3fb62ecb20291ca834e98fc2c..80f9774eefc82df5a18511c07a3ff6138c2514f3 100644
--- a/test/runner/browser/runner_test.dart
+++ b/test/runner/browser/runner_test.dart
@@ -126,6 +126,12 @@ void main() {
       expect(result.exitCode, equals(0));
     });
 
+    test("on PhantomJS", () {
+      new File(p.join(_sandbox, "test.dart")).writeAsStringSync(_success);
+      var result = _runUnittest(["-p", "phantomjs", "test.dart"]);
+      expect(result.exitCode, equals(0));
+    });
+
     test("on Firefox", () {
       new File(p.join(_sandbox, "test.dart")).writeAsStringSync(_success);
       var result = _runUnittest(["-p", "firefox", "test.dart"]);
@@ -175,6 +181,12 @@ void main() {
       expect(result.exitCode, equals(1));
     });
 
+    test("on PhantomJS", () {
+      new File(p.join(_sandbox, "test.dart")).writeAsStringSync(_failure);
+      var result = _runUnittest(["-p", "phantomjs", "test.dart"]);
+      expect(result.exitCode, equals(1));
+    });
+
     test("on Firefox", () {
       new File(p.join(_sandbox, "test.dart")).writeAsStringSync(_failure);
       var result = _runUnittest(["-p", "firefox", "test.dart"]);