[android_webview] Factor AwWebContentsObserver out of AwContentsClient.

android_webview/javatests/src/org/chromium/android_webview/test/AwWebContentsObserverTest.java

+// Copyright 2014 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.
+
+package org.chromium.android_webview.test;
+
+import android.test.UiThreadTest;
+import android.test.suitebuilder.annotation.SmallTest;
+
+import org.chromium.android_webview.AwContentsStatics;
+import org.chromium.android_webview.AwWebContentsObserver;
+import org.chromium.base.test.util.Feature;
+import org.chromium.net.NetError;
+
+/**
+ * Tests for the AwWebContentsObserver class.
+ */
+public class AwWebContentsObserverTest extends AwTestBase  {
+    private TestAwContentsClient mContentsClient;
+    private AwTestContainerView mTestContainerView;
+    private AwWebContentsObserver mWebContentsObserver;
+
+    private static final String EXAMPLE_URL = "http://www.example.com/";
+    private static final String ERROR_DESCRIPTION = "description";
+    private static String mUnreachableWebDataUrl;
+
+    @Override
+    public void setUp() throws Exception {
+        super.setUp();
+        mContentsClient = new TestAwContentsClient();
+        mTestContainerView = createAwTestContainerViewOnMainSync(mContentsClient);
+        mUnreachableWebDataUrl = AwContentsStatics.getUnreachableWebDataUrl();
+        getInstrumentation().runOnMainSync(new Runnable() {

[boliu, 2014/08/07 16:01:29]

Is runOnMainSync here necessary? Test won't start running until setUp returns,
right?

[mkosiba (inactive), 2014/08/08 10:58:44]

The constructor DCHECKS when it's not run on the UI thread. Added comment.

+            @Override
+            public void run() {
+                mWebContentsObserver = new AwWebContentsObserver(
+                        mTestContainerView.getContentViewCore().getWebContents(), mContentsClient);
+            }
+        });
+    }
+
+    @SmallTest
+    @UiThreadTest
+    @Feature({"AndroidWebView"})
+    public void testOnPageFinished() {
+        int callCount = mContentsClient.getOnPageFinishedHelper().getCallCount();
+        mWebContentsObserver.didFinishLoad(/*frameId=*/0, EXAMPLE_URL, /*isMainFrame=*/false);

[boliu, 2014/08/07 16:01:29]

nit: Not sure what the java style is, but in chromium c++, I've seen this kind
of comments written as

didFinishLoad(0 /* frameId */, EXAMPLE_URL, false /* isMainFrame */);

So more spacing, and after the variable.

Maybe a clearer way is to declare local variable frameId and isMainFrame instead
of constants.

[mkosiba (inactive), 2014/08/08 10:58:44]

Done.

+        assertEquals("onPageFinished should only be called for the main frame.", callCount,
+                mContentsClient.getOnPageFinishedHelper().getCallCount());
+
+        callCount = mContentsClient.getOnPageFinishedHelper().getCallCount();
+        mWebContentsObserver.didFinishLoad(
+                /*frameId=*/0, mUnreachableWebDataUrl, /*isMainFrame=*/true);
+        assertEquals("onPageFinished should not be called for the error url.", callCount,
+                mContentsClient.getOnPageFinishedHelper().getCallCount());
+
+        callCount = mContentsClient.getOnPageFinishedHelper().getCallCount();
+        mWebContentsObserver.didFinishLoad(/*frameId=*/0, EXAMPLE_URL, /*isMainFrame=*/true);
+        assertEquals("onPageFinished should be called for main frame navigations.", callCount + 1,
+                mContentsClient.getOnPageFinishedHelper().getCallCount());
+
+        callCount = mContentsClient.getOnPageFinishedHelper().getCallCount();
+        mWebContentsObserver.didFailLoad(/*isProvisionaLoad=*/false, /*isMainFrame=*/true,
+                NetError.ERR_ABORTED, ERROR_DESCRIPTION, EXAMPLE_URL);
+        assertEquals("onPageFinished should be called for main frame errors.", callCount + 1,
+                mContentsClient.getOnPageFinishedHelper().getCallCount());
+
+        callCount = mContentsClient.getOnPageFinishedHelper().getCallCount();
+        mWebContentsObserver.didFailLoad(/*isProvisionaLoad=*/false, /*isMainFrame=*/false,
+                NetError.ERR_ABORTED, ERROR_DESCRIPTION, EXAMPLE_URL);
+        assertEquals("onPageFinished should only be called for main frame errors.", callCount,
+                mContentsClient.getOnPageFinishedHelper().getCallCount());
+
+        callCount = mContentsClient.getOnPageFinishedHelper().getCallCount();
+        mWebContentsObserver.didFailLoad(/*isProvisionaLoad=*/false, /*isMainFrame=*/true,
+                NetError.ERR_ABORTED, ERROR_DESCRIPTION, mUnreachableWebDataUrl);
+        assertEquals("onPageFinished should not be called on unrechable url errors.", callCount,
+                mContentsClient.getOnPageFinishedHelper().getCallCount());
+
+        callCount = mContentsClient.getOnPageFinishedHelper().getCallCount();
+        mWebContentsObserver.didNavigateMainFrame(/*url=*/EXAMPLE_URL, /*baseUrl=*/null,
+                /*isNavigationToDifferentPage*/false, /*isFragmentNavigation*/true);
+        assertEquals("onPageFinished should be called for main frame fragment navigations.",
+                callCount + 1, mContentsClient.getOnPageFinishedHelper().getCallCount());
+
+        callCount = mContentsClient.getOnPageFinishedHelper().getCallCount();
+        mWebContentsObserver.didNavigateMainFrame(/*url=*/EXAMPLE_URL, /*baseUrl=*/null,
+                /*isNavigationToDifferentPage*/false, /*isFragmentNavigation*/false);
+        assertEquals("onPageFinished should be called only for main frame fragment navigations.",
+                callCount, mContentsClient.getOnPageFinishedHelper().getCallCount());
+    }
+
+    @SmallTest
+    @UiThreadTest
+    @Feature({"AndroidWebView"})
+    public void testOnReceivedError() {
+        int callCount = mContentsClient.getOnReceivedErrorHelper().getCallCount();
+        mWebContentsObserver.didFailLoad(/*isProvisionaLoad=*/false, /*isMainFrame=*/false,
+                NetError.ERR_TIMED_OUT, ERROR_DESCRIPTION, EXAMPLE_URL);
+        assertEquals("onReceivedError should only be called for the main frame", callCount,
+                mContentsClient.getOnReceivedErrorHelper().getCallCount());
+
+        callCount = mContentsClient.getOnReceivedErrorHelper().getCallCount();
+        mWebContentsObserver.didFailLoad(/*isProvisionaLoad=*/false, /*isMainFrame=*/true,
+                NetError.ERR_TIMED_OUT, ERROR_DESCRIPTION, EXAMPLE_URL);
+        assertEquals("onReceivedError should be called for the main frame", callCount + 1,
+                mContentsClient.getOnReceivedErrorHelper().getCallCount());
+
+        callCount = mContentsClient.getOnReceivedErrorHelper().getCallCount();
+        mWebContentsObserver.didFailLoad(/*isProvisionaLoad=*/false, /*isMainFrame=*/true,
+                NetError.ERR_ABORTED, ERROR_DESCRIPTION, EXAMPLE_URL);
+        assertEquals("onReceivedError should not be called for aborted navigations", callCount,
+                mContentsClient.getOnReceivedErrorHelper().getCallCount());
+    }
+
+    @SmallTest
+    @UiThreadTest
+    @Feature({"AndroidWebView"})
+    public void testDidNavigateMainFrame() {
+        int callCount = mContentsClient.getDoUpdateVisitedHistoryHelper().getCallCount();
+        mWebContentsObserver.didNavigateAnyFrame(/*url=*/null, /*baseUrl=*/null,
+                /*isReload=*/false);
+        assertEquals("doUpdateVisitedHistory should only be called for any url.", callCount + 1,
+                mContentsClient.getDoUpdateVisitedHistoryHelper().getCallCount());

[boliu, 2014/08/07 16:01:29]

check isReload matches

[mkosiba (inactive), 2014/08/08 10:58:44]

Done.

+
+        callCount = mContentsClient.getDoUpdateVisitedHistoryHelper().getCallCount();
+        mWebContentsObserver.didNavigateAnyFrame(/*url=*/EXAMPLE_URL, /*baseUrl=*/null,
+                /*isReload=*/false);
+        assertEquals("doUpdateVisitedHistory should only be called for any url.", callCount + 1,
+                mContentsClient.getDoUpdateVisitedHistoryHelper().getCallCount());
+
+        callCount = mContentsClient.getDoUpdateVisitedHistoryHelper().getCallCount();
+        mWebContentsObserver.didNavigateAnyFrame(/*url=*/EXAMPLE_URL, /*baseUrl=*/null,
+                /*isReload=*/true);
+        assertEquals("doUpdateVisitedHistory should be called for reloads.", callCount + 1,
+                mContentsClient.getDoUpdateVisitedHistoryHelper().getCallCount());
+    }
+}