/** Test that the progress bar only traverses the page a single time per navigation. */
@Feature({"Android-Toolbar"})
@MediumTest
@Restriction(ChromeRestriction.RESTRICTION_TYPE_PHONE)
public void testToolbarTraversesScreenOnce() throws InterruptedException, TimeoutException {
EmbeddedTestServer testServer =
EmbeddedTestServer.createAndStartFileServer(
getInstrumentation().getContext(), Environment.getExternalStorageDirectory());
final WebContents webContents = getActivity().getActivityTab().getWebContents();
TestWebContentsObserver observer = new TestWebContentsObserver(webContents);
// Start and stop load events are carefully tracked; there should be two start-stop pairs
// that do not overlap.
OnPageStartedHelper startHelper = observer.getOnPageStartedHelper();
OnPageFinishedHelper finishHelper = observer.getOnPageFinishedHelper();
ToolbarProgressBar progressBar = (ToolbarProgressBar) getActivity().findViewById(R.id.progress);
// Reset progress bar start count in case anything else triggered it.
progressBar.resetStartCountForTesting();
// Ensure no load events have occured yet.
assertEquals(0, startHelper.getCallCount());
assertEquals(0, finishHelper.getCallCount());
loadUrl(testServer.getURL(TEST_PAGE));
// Wait for the initial page to be loaded if it hasn't already.
if (finishHelper.getCallCount() == 0) {
finishHelper.waitForCallback(finishHelper.getCallCount(), 1);
}
// Exactly one start load and one finish load event should have occured.
assertEquals(1, startHelper.getCallCount());
assertEquals(1, finishHelper.getCallCount());
// Load content in the iframe of the test page to trigger another load.
JavaScriptUtils.executeJavaScript(webContents, "loadIframeInPage();");
// A load start will be triggered.
startHelper.waitForCallback(startHelper.getCallCount(), 1);
assertEquals(2, startHelper.getCallCount());
// Wait for the iframe to finish loading.
finishHelper.waitForCallback(finishHelper.getCallCount(), 1);
assertEquals(2, finishHelper.getCallCount());
// Though the page triggered two load events, the progress bar should have only appeared a
// single time.
assertEquals(1, progressBar.getStartCountForTesting());
}
