Make EarlGrey matchers compliant with Chromium style.

ios/chrome/browser/context_menu/context_menu_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>
 #import <UIKit/UIKit.h>
 #import <XCTest/XCTest.h>
 
 #include "base/strings/sys_string_conversions.h"
 #include "ios/chrome/browser/ui/ui_util.h"
 #include "ios/chrome/grit/ios_strings.h"
 #import "ios/chrome/test/app/chrome_test_util.h"
 #import "ios/chrome/test/app/settings_test_util.h"
 #import "ios/chrome/test/app/tab_test_util.h"
 #include "ios/chrome/test/app/web_view_interaction_test_util.h"
 #import "ios/chrome/test/earl_grey/chrome_actions.h"
 #import "ios/chrome/test/earl_grey/chrome_assertions.h"
 #import "ios/chrome/test/earl_grey/chrome_earl_grey.h"
 #import "ios/chrome/test/earl_grey/chrome_matchers.h"
 #import "ios/chrome/test/earl_grey/chrome_test_case.h"
 #include "ios/chrome/test/earl_grey/chrome_util.h"
 #import "ios/testing/wait_util.h"
 #import "ios/web/public/test/earl_grey/web_view_matchers.h"
 #import "ios/web/public/test/http_server.h"
 #import "ios/web/public/test/http_server_util.h"
 #include "url/gurl.h"
 
-using chrome_test_util::buttonWithAccessibilityLabelId;
+using chrome_test_util::ButtonWithAccessibilityLabelId;
 
 namespace {
 const char kUrlChromiumLogoPage[] =
     "http://ios/testing/data/http_server_files/chromium_logo_page.html";
 const char kUrlChromiumLogoImg[] =
     "http://ios/testing/data/http_server_files/chromium_logo.png";
 const char kUrlInitialPage[] = "http://scenarioContextMenuOpenInNewTab";
 const char kUrlDestinationPage[] = "http://destination";
 const char kChromiumImageID[] = "chromium_image";
 const char kDestinationLinkID[] = "link";
 
 // HTML content of the destination page that sets the page title.
 const char kDestinationHtml[] =
     "<script>document.title='new doc'</script>You made it!";
 
 // Matcher for the open image button in the context menu.
-id<GREYMatcher> openImageButton() {
-  return buttonWithAccessibilityLabelId(IDS_IOS_CONTENT_CONTEXT_OPENIMAGE);
+id<GREYMatcher> OpenImageButton() {
+  return ButtonWithAccessibilityLabelId(IDS_IOS_CONTENT_CONTEXT_OPENIMAGE);
 }
 
 // Matcher for the open image in new tab button in the context menu.
-id<GREYMatcher> openImageInNewTabButton() {
-  return buttonWithAccessibilityLabelId(
+id<GREYMatcher> OpenImageInNewTabButton() {
+  return ButtonWithAccessibilityLabelId(
       IDS_IOS_CONTENT_CONTEXT_OPENIMAGENEWTAB);
 }
 
 // Matcher for the open link in new tab button in the context menu.
-id<GREYMatcher> openLinkInNewTabButton() {
-  return buttonWithAccessibilityLabelId(IDS_IOS_CONTENT_CONTEXT_OPENLINKNEWTAB);
+// TODO(crbug.com/638674): Clean up code duplication.
+id<GREYMatcher> OpenLinkInNewTabButton() {
+  return ButtonWithAccessibilityLabelId(IDS_IOS_CONTENT_CONTEXT_OPENLINKNEWTAB);
 }
 
 // Waits for the context menu item to disappear. TODO(crbug.com/682871): Remove
 // this once EarlGrey is synchronized with context menu.
 void WaitForContextMenuItemDisappeared(id<GREYMatcher> contextMenuItemButton) {
   ConditionBlock condition = ^{
     NSError* error = nil;
     [[EarlGrey selectElementWithMatcher:contextMenuItemButton]
         assertWithMatcher:grey_nil()
                     error:&error];
     return error == nil;
   };
   GREYAssert(testing::WaitUntilConditionOrTimeout(
                  testing::kWaitForUIElementTimeout, condition),
              [NSString stringWithFormat:@"Waiting for matcher %@ failed.",
                                         contextMenuItemButton]);
 }
 
 // Long press on |elementId| to trigger context menu and then tap on
 // |contextMenuItemButton| item.
 void LongPressElementAndTapOnButton(const char* elementId,
                                     id<GREYMatcher> contextMenuItemButton) {
-  [[EarlGrey selectElementWithMatcher:chrome_test_util::
-                                          webViewBelongingToWebController()]
+  id<GREYMatcher> webViewMatcher =
+      web::WebViewInWebState(chrome_test_util::GetCurrentWebState());
+  [[EarlGrey selectElementWithMatcher:webViewMatcher]
       performAction:chrome_test_util::longPressElementForContextMenu(elementId,
                                                                      true)];
 
   [[EarlGrey selectElementWithMatcher:contextMenuItemButton]
       assertWithMatcher:grey_notNil()];
   [[EarlGrey selectElementWithMatcher:contextMenuItemButton]
       performAction:grey_tap()];
   WaitForContextMenuItemDisappeared(contextMenuItemButton);
 }
 
@@ skipping 31 matching lines @@
 
 // Tests that selecting "Open Image" from the context menu properly opens the
 // image in the current tab.
 - (void)testOpenImageInCurrentTabFromContextMenu {
   GURL pageURL = web::test::HttpServer::MakeUrl(kUrlChromiumLogoPage);
   GURL imageURL = web::test::HttpServer::MakeUrl(kUrlChromiumLogoImg);
   web::test::SetUpFileBasedHttpServer();
   [ChromeEarlGrey loadURL:pageURL];
   chrome_test_util::AssertMainTabCount(1U);
 
-  LongPressElementAndTapOnButton(kChromiumImageID, openImageButton());
+  LongPressElementAndTapOnButton(kChromiumImageID, OpenImageButton());
 
   // Verify url and tab count.
-  [[EarlGrey selectElementWithMatcher:chrome_test_util::omniboxText(
+  [[EarlGrey selectElementWithMatcher:chrome_test_util::OmniboxText(
                                           imageURL.GetContent())]
       assertWithMatcher:grey_notNil()];
   chrome_test_util::AssertMainTabCount(1U);
 }
 
 // Tests that selecting "Open Image in New Tab" from the context menu properly
 // opens the image in a new background tab.
 - (void)testOpenImageInNewTabFromContextMenu {
   GURL pageURL = web::test::HttpServer::MakeUrl(kUrlChromiumLogoPage);
   GURL imageURL = web::test::HttpServer::MakeUrl(kUrlChromiumLogoImg);
   web::test::SetUpFileBasedHttpServer();
   [ChromeEarlGrey loadURL:pageURL];
   chrome_test_util::AssertMainTabCount(1U);
 
-  LongPressElementAndTapOnButton(kChromiumImageID, openImageInNewTabButton());
+  LongPressElementAndTapOnButton(kChromiumImageID, OpenImageInNewTabButton());
 
   SelectTabAtIndexInCurrentMode(1U);
 
   // Verify url and tab count.
-  [[EarlGrey selectElementWithMatcher:chrome_test_util::omniboxText(
+  [[EarlGrey selectElementWithMatcher:chrome_test_util::OmniboxText(
                                           imageURL.GetContent())]
       assertWithMatcher:grey_notNil()];
   chrome_test_util::AssertMainTabCount(2U);
 }
 
 // Tests "Open in New Tab" on context menu.
 - (void)testContextMenuOpenInNewTab {
   // Set up test simple http server.
   std::map<GURL, std::string> responses;
   GURL initialURL = web::test::HttpServer::MakeUrl(kUrlInitialPage);
   GURL destinationURL = web::test::HttpServer::MakeUrl(kUrlDestinationPage);
 
   // The initial page contains a link to the destination page.
   responses[initialURL] = "<a style='margin-left:50px' href='" +
                           destinationURL.spec() + "' id='link'>link</a>";
   responses[destinationURL] = kDestinationHtml;
 
   web::test::SetUpSimpleHttpServer(responses);
   [ChromeEarlGrey loadURL:initialURL];
   chrome_test_util::AssertMainTabCount(1U);
 
-  LongPressElementAndTapOnButton(kDestinationLinkID, openLinkInNewTabButton());
+  LongPressElementAndTapOnButton(kDestinationLinkID, OpenLinkInNewTabButton());
 
   SelectTabAtIndexInCurrentMode(1U);
 
   // Verify url and tab count.
-  [[EarlGrey selectElementWithMatcher:chrome_test_util::omniboxText(
+  [[EarlGrey selectElementWithMatcher:chrome_test_util::OmniboxText(
                                           destinationURL.GetContent())]
       assertWithMatcher:grey_notNil()];
   chrome_test_util::AssertMainTabCount(2U);
 }
 
 // Tests "Open in New Tab" on context menu  on a link that requires scrolling
 // on the page to verify that context menu can be properly triggered in the
 // current screen view.
 - (void)testContextMenuOpenInNewTabFromTallPage {
   // Set up test simple http server.
   std::map<GURL, std::string> responses;
   GURL initialURL =
       web::test::HttpServer::MakeUrl("http://scenarioContextMenuOpenInNewTab");
   GURL destinationURL = web::test::HttpServer::MakeUrl("http://destination");
 
   // The initial page contains a link to the destination page that is below a
   // really tall div so that scrolling is required.
   responses[initialURL] =
       "<div style='height:4000px'></div>"
       "<a style='margin-left:50px' href='" +
       destinationURL.spec() + "' id='link'>link</a>";
   responses[destinationURL] = kDestinationHtml;
 
   web::test::SetUpSimpleHttpServer(responses);
   [ChromeEarlGrey loadURL:initialURL];
   chrome_test_util::AssertMainTabCount(1U);
 
   // Scroll down on the web view to make the link visible.
   [[EarlGrey
-      selectElementWithMatcher:webViewScrollView(
+      selectElementWithMatcher:WebViewScrollView(
                                    chrome_test_util::GetCurrentWebState())]
       performAction:grey_swipeFastInDirection(kGREYDirectionUp)];
-  [[EarlGrey selectElementWithMatcher:chrome_test_util::webViewContainingText(
+  [[EarlGrey selectElementWithMatcher:chrome_test_util::WebViewContainingText(
                                           kDestinationLinkID)]
       assertWithMatcher:grey_notNil()];
 
-  LongPressElementAndTapOnButton(kDestinationLinkID, openLinkInNewTabButton());
+  LongPressElementAndTapOnButton(kDestinationLinkID, OpenLinkInNewTabButton());
 
   // Earl Grey cannot preperly synchronize some animations, so adding a
   // WaitUntilCondition to wait for the new tab opening animation to finish
   // and the scroll view to become interactable.
   ConditionBlock condition = ^{
     NSError* error = nil;
     [[EarlGrey
-        selectElementWithMatcher:webViewScrollView(
+        selectElementWithMatcher:WebViewScrollView(
                                      chrome_test_util::GetCurrentWebState())]
         assertWithMatcher:grey_interactable()
                     error:&error];
     return !error;
   };
   GREYAssert(testing::WaitUntilConditionOrTimeout(
                  testing::kWaitForUIElementTimeout, condition),
              @"Web view did not become interactable");
 
   // Make the toolbar visible by scrolling up on the web view to select the
   // newly opened tab.
   [[EarlGrey
-      selectElementWithMatcher:webViewScrollView(
+      selectElementWithMatcher:WebViewScrollView(
                                    chrome_test_util::GetCurrentWebState())]
       performAction:grey_swipeFastInDirection(kGREYDirectionDown)];
   chrome_test_util::AssertToolbarVisible();
 
   SelectTabAtIndexInCurrentMode(1U);
 
   // Verify url and tab count.
-  [[EarlGrey selectElementWithMatcher:chrome_test_util::omniboxText(
+  [[EarlGrey selectElementWithMatcher:chrome_test_util::OmniboxText(
                                           destinationURL.GetContent())]
       assertWithMatcher:grey_notNil()];
   chrome_test_util::AssertMainTabCount(2U);
 }
 
 @end