[ios] RootCoordinator and view controller.

ios/clean/chrome/browser/ui/root/root_coordinator_unittest.mm

Index: ios/clean/chrome/browser/ui/root/root_coordinator_unittest.mm
diff --git a/ios/clean/chrome/browser/ui/root/root_coordinator_unittest.mm b/ios/clean/chrome/browser/ui/root/root_coordinator_unittest.mm
new file mode 100644
index 0000000000000000000000000000000000000000..db6a92a38204bd29c585ae835e65744b8d1a8944
--- /dev/null
+++ b/ios/clean/chrome/browser/ui/root/root_coordinator_unittest.mm
@@ -0,0 +1,21 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#import "ios/clean/chrome/browser/ui/root/root_coordinator.h"
+
+#import "ios/clean/chrome/browser/url_opening.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
+namespace {
+
+// Tests that RootCoordinator conforms to the URLOpening protocol.
+TEST(RootCoordinatorTest, TestConformsToURLOpening) {
+  EXPECT_TRUE([RootCoordinator conformsToProtocol:@protocol(URLOpening)]);
+}
+

[lpromero, 2017/04/12 08:58:49]

You could add a test that starting the coordinator installs a
contentViewController on its controller?

openURL: is harder to test though.

[edchin, 2017/04/13 07:39:15]

In order to test the coordinator's start method, 
we need a real browser state. I'll create more tests
once we have better examples of coordinator unittests.

+}  // namespace