Pass WebState to NativeAppNavigationController

ios/chrome/browser/native_app_launcher/native_app_navigation_utils_unittest.mm

Index: ios/chrome/browser/native_app_launcher/native_app_navigation_utils_unittest.mm
diff --git a/ios/chrome/browser/native_app_launcher/native_app_navigation_utils_unittest.mm b/ios/chrome/browser/native_app_launcher/native_app_navigation_utils_unittest.mm
new file mode 100644
index 0000000000000000000000000000000000000000..70a187b64d04c54277fdf0f53258fd7f5f4dd09e
--- /dev/null
+++ b/ios/chrome/browser/native_app_launcher/native_app_navigation_utils_unittest.mm
@@ -0,0 +1,100 @@
+// 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.
+
+#include "ios/chrome/browser/native_app_launcher/native_app_navigation_utils.h"
+
+#import "ios/web/navigation/crw_session_controller.h"
+#include "ios/web/navigation/navigation_manager_impl.h"

[Eugene But (OOO till 7-30), 2017/01/26 01:04:39]

s/include/import

[pkl (ping after 24h if needed), 2017/01/26 02:26:29]

But navigation_manager_impl defines a C++ class, so should be #include, right?

[Eugene But (OOO till 7-30), 2017/01/26 03:10:02]

Line 19 is Objective-C code.

[pkl (ping after 24h if needed), 2017/01/26 19:44:24]

Done.

+#include "ios/web/public/referrer.h"
+#include "ios/web/public/test/web_test.h"
+#import "ios/web/web_state/web_state_impl.h"
+#include "ui/base/page_transition_types.h"
+#include "url/gurl.h"
+
+namespace {

[Eugene But (OOO till 7-30), 2017/01/26 01:04:39]

Optional nit: There is no need to put tests into anonymous namespace.
Conceptually they belong to the same package as code.

[pkl (ping after 24h if needed), 2017/01/26 02:26:28]

There are differing opinions on putting test code inside anonymous namespace.
There are some marginal benefits, e.g. 2 tests that defined to have the same
name (via accidental cut and paste, for example).

+
+class NativeAppNavigationUtilsTest : public web::WebTest {
+ protected:
+  void SetUp() override {
+    web::WebTest::SetUp();
+    // WebStateImpl object is needed here to have access to CRWSessionController
+    // for setting up NavigationManager entries.
+    std::unique_ptr<web::WebStateImpl> web_state(
+        new web::WebStateImpl(GetBrowserState()));
+    web_state->GetNavigationManagerImpl().InitializeSession(nil, nil, NO, 0);
+    web_state->SetWebUsageEnabled(true);
+    web_state_.reset(web_state.release());
+  }
+
+  void TearDown() override {
+    web_state_.reset();

[Eugene But (OOO till 7-30), 2017/01/26 01:04:39]

Is there a reason for destroying web_state before destructor?

[pkl (ping after 24h if needed), 2017/01/26 02:26:29]

1. WebTestWithWebState does that.
2. It feels right to destroy it before superclass' TearDown is called.

+    web::WebTest::TearDown();
+  }
+
+  web::WebState* web_state() { return web_state_->GetWebState(); }

[Eugene But (OOO till 7-30), 2017/01/26 01:04:39]

return web_state_.get();

[pkl (ping after 24h if needed), 2017/01/26 02:26:28]

web_state_.get() returns a WebStateImpl* which is too much information.
GetWebState() returns a WebState* which is exactly what is needed.

+
+  void AddPendingEntry(const std::string& URL, ui::PageTransition transition) {

[Eugene But (OOO till 7-30), 2017/01/26 01:04:39]

s/URL/url_spec ?

[Eugene But (OOO till 7-30), 2017/01/26 01:04:39]

AddCommittedItem? (s/Pending/Committed, s/Entry/Item)

[pkl (ping after 24h if needed), 2017/01/26 02:26:28]

Done.

[pkl (ping after 24h if needed), 2017/01/26 02:26:29]

Yes, good point! Renamed to just AddItem.

+    CRWSessionController* sessionController =

[Eugene But (OOO till 7-30), 2017/01/26 01:04:39]

s/sessionController/session_controller

[pkl (ping after 24h if needed), 2017/01/26 02:26:28]

Done.

+        web_state_->GetNavigationManagerImpl().GetSessionController();
+    [sessionController addPendingEntry:GURL(URL)
+                              referrer:web::Referrer()
+                            transition:transition
+                     rendererInitiated:NO];
+    [sessionController commitPendingEntry];
+  }
+
+ private:
+  std::unique_ptr<web::WebStateImpl> web_state_;
+};
+
+// Tests that default state is not a link click.
+TEST_F(NativeAppNavigationUtilsTest, TestEmpty) {
+  EXPECT_FALSE(native_app_launcher::IsLinkNavigation(web_state()));
+}
+
+// URL typed by user is not a link click.
+TEST_F(NativeAppNavigationUtilsTest, TestTypedURL) {

[Eugene But (OOO till 7-30), 2017/01/26 01:04:39]

Optional nit: According to C++ Style Guide this should be TestTypedUrl 

though we extremely inconsistent with URL capitalization, so it's up to you.

[pkl (ping after 24h if needed), 2017/01/26 02:26:29]

Done.

+  AddPendingEntry("http://foo.com/page0", ui::PAGE_TRANSITION_TYPED);
+  EXPECT_FALSE(native_app_launcher::IsLinkNavigation(web_state()));
+}
+
+// Transition state shows that user navigated via a link click.
+TEST_F(NativeAppNavigationUtilsTest, TestLinkClicked) {
+  AddPendingEntry("http://foo.com/page0", ui::PAGE_TRANSITION_LINK);
+  EXPECT_TRUE(native_app_launcher::IsLinkNavigation(web_state()));
+}
+
+// Transition state shows that user navigated through clicking on a bookmark
+// is considered *not* a link click.
+TEST_F(NativeAppNavigationUtilsTest, TestAutoBookmark) {
+  AddPendingEntry("http://foo.com/page0", ui::PAGE_TRANSITION_AUTO_BOOKMARK);
+  EXPECT_TRUE(native_app_launcher::IsLinkNavigation(web_state()));

[Eugene But (OOO till 7-30), 2017/01/26 01:04:39]

Sorry, missed in early reviews, when we did not have unit tests. Is it
reasonable to return true for Bookmarks, which are not a link click?

[pkl (ping after 24h if needed), 2017/01/26 02:26:28]

Done.

+}
+
+// When there are redirects along the way, redirects are skipped until the
+// first non-redirect entry.
+TEST_F(NativeAppNavigationUtilsTest, TestHasTypedURLWithRedirect) {
+  AddPendingEntry("http://foo.com/page0", ui::PAGE_TRANSITION_TYPED);
+  AddPendingEntry("http://foo.com/page1", ui::PAGE_TRANSITION_CLIENT_REDIRECT);
+  EXPECT_FALSE(native_app_launcher::IsLinkNavigation(web_state()));
+}
+
+// When there are multiple redirects along the way, redirects are skipped until
+// the first non-redirect entry.
+TEST_F(NativeAppNavigationUtilsTest, TestHasLinkClickedWithRedirect) {
+  AddPendingEntry("http://foo.com/page0", ui::PAGE_TRANSITION_LINK);
+  AddPendingEntry("http://bar.com/page1", ui::PAGE_TRANSITION_SERVER_REDIRECT);
+  AddPendingEntry("http://zap.com/page2", ui::PAGE_TRANSITION_SERVER_REDIRECT);
+  EXPECT_TRUE(native_app_launcher::IsLinkNavigation(web_state()));
+}
+
+// The first non-redirect entry is tested. Earlier redirects do not matter.
+TEST_F(NativeAppNavigationUtilsTest, TestTypedURLWithRedirectEarlier) {
+  AddPendingEntry("http://foo.com/page0", ui::PAGE_TRANSITION_LINK);
+  AddPendingEntry("http://bar.com/page1", ui::PAGE_TRANSITION_SERVER_REDIRECT);
+  AddPendingEntry("http://blah.com/page2", ui::PAGE_TRANSITION_TYPED);
+  EXPECT_FALSE(native_app_launcher::IsLinkNavigation(web_state()));
+}
+
+}  // namespace