Create ChromeEarlGrey waitForWebViewContainingText.

ios/chrome/browser/web/progress_indicator_egtest.mm

 // Copyright 2016 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 <EarlGrey/EarlGrey.h>
 
 #include "base/mac/foundation_util.h"
 #include "base/memory/ptr_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/time/time.h"
@@ skipping 134 matching lines @@
   const GURL infinitePendingURL =
       web::test::HttpServer::MakeUrl(kInfinitePendingPageURL);
   web::test::SetUpHttpServer(
       base::MakeUnique<InfinitePendingResponseProvider>(infinitePendingURL));
 
   // The page being loaded never completes, so call the LoadUrl helper that
   // does not wait for the page to complete loading.
   chrome_test_util::LoadUrl(infinitePendingURL);
 
   // Wait until the page is half loaded.
-  [[EarlGrey selectElementWithMatcher:WebViewContainingText(kPageText)]
-      assertWithMatcher:grey_notNil()];
+  [ChromeEarlGrey waitForWebViewContainingText:kPageText];
 
   // Verify progress view visible and halfway progress.
   [[EarlGrey selectElementWithMatcher:ProgressViewWithProgress(0.5)]
       assertWithMatcher:grey_sufficientlyVisible()];
 
   [ChromeEarlGreyUI waitForToolbarVisible:YES];
 }
 
 // Tests that the progress indicator is shown and has expected progress value
 // after a form is submitted, and the toolbar is visible.
@@ skipping 11 matching lines @@
   responses[formURL] = [self formPageHTMLWithFormSubmitURL:infinitePendingURL];
   web::test::SetUpSimpleHttpServer(responses);
 
   // Add responseProvider for page that never finishes loading.
   web::test::AddResponseProvider(
       base::MakeUnique<InfinitePendingResponseProvider>(infinitePendingURL));
 
   // Load form first.
   [ChromeEarlGrey loadURL:formURL];
 
+  // TODO(crbug.com/707009): Replace this matcher with
+  // [ChromeEarlGrey waitForWebViewContainingText]. It fails to synchronize with
+  // the progress bar.
   [[EarlGrey selectElementWithMatcher:WebViewContainingText(kFormPageText)]
       assertWithMatcher:grey_notNil()];
 
   chrome_test_util::SubmitWebViewFormWithId(kFormID);
 
   // Wait until the page is half loaded.
+  // TODO(crbug.com/707009): Replace this matcher with
+  // [ChromeEarlGrey waitForWebViewContainingText].
   [[EarlGrey selectElementWithMatcher:WebViewContainingText(kPageText)]
       assertWithMatcher:grey_notNil()];
 
   // Verify progress view visible and halfway progress.
   [[EarlGrey selectElementWithMatcher:ProgressViewWithProgress(0.5)]
       assertWithMatcher:grey_sufficientlyVisible()];
 
   [ChromeEarlGreyUI waitForToolbarVisible:YES];
 }
 
 // Tests that the progress indicator disappears after form has been submitted.
 - (void)testProgressIndicatorDisappearsAfterFormSubmit {
   if (IsIPadIdiom()) {
     EARL_GREY_TEST_SKIPPED(@"Skipped for iPad (no progress view in tablet)");
   }
 
   const GURL formURL = web::test::HttpServer::MakeUrl(kFormURL);
   const GURL simplePageURL = web::test::HttpServer::MakeUrl(kSimplePageURL);
 
   // Create a page with a form to test.
   std::map<GURL, std::string> responses;
   responses[formURL] = [self formPageHTMLWithFormSubmitURL:simplePageURL];
   responses[simplePageURL] = kPageText;
   web::test::SetUpSimpleHttpServer(responses);
 
   [ChromeEarlGrey loadURL:formURL];
 
-  [[EarlGrey selectElementWithMatcher:WebViewContainingText(kFormPageText)]
-      assertWithMatcher:grey_notNil()];
+  [ChromeEarlGrey waitForWebViewContainingText:kFormPageText];
 
   chrome_test_util::SubmitWebViewFormWithId(kFormID);
 
   // Verify the new page has been loaded.
-  [[EarlGrey selectElementWithMatcher:WebViewContainingText(kPageText)]
-      assertWithMatcher:grey_notNil()];
+  [ChromeEarlGrey waitForWebViewContainingText:kPageText];
 
   // Verify progress view is not visible.
   [[EarlGrey selectElementWithMatcher:ProgressView()]
       assertWithMatcher:grey_notVisible()];
 }
 
 // Tests that the progress indicator disappears after form post attempt with a
 // submit event that returns false.
 - (void)testProgressIndicatorDisappearsAfterSuppressedFormPost {
   if (IsIPadIdiom()) {
     EARL_GREY_TEST_SKIPPED(@"Skipped for iPad (no progress view in tablet)");
   }
 
   // Create a page with a form to test.
   const GURL formURL = web::test::HttpServer::MakeUrl(kFormURL);
   std::map<GURL, std::string> responses;
   responses[formURL] = [self formPageHTMLWithSuppressedSubmitEvent];
   web::test::SetUpSimpleHttpServer(responses);
 
   [ChromeEarlGrey loadURL:formURL];
 
   // Verify the form page has been loaded.
-  [[EarlGrey selectElementWithMatcher:WebViewContainingText(kFormPageText)]
-      assertWithMatcher:grey_notNil()];
+  [ChromeEarlGrey waitForWebViewContainingText:kFormPageText];
 
   chrome_test_util::SubmitWebViewFormWithId(kFormID);
 
   // Verify progress view is not visible.
   [[EarlGrey selectElementWithMatcher:grey_kindOfClass([MDCProgressView class])]
       assertWithMatcher:grey_notVisible()];
 }
 
 @end