Implement request mobile site.

ios/chrome/browser/ui/tools_menu/request_desktop_mobile_site_egtest.mm

Index: ios/chrome/browser/ui/tools_menu/request_desktop_mobile_site_egtest.mm
diff --git a/ios/chrome/browser/ui/tools_menu/request_desktop_mobile_site_egtest.mm b/ios/chrome/browser/ui/tools_menu/request_desktop_mobile_site_egtest.mm
new file mode 100644
index 0000000000000000000000000000000000000000..d88e97e390726c0cf7bf6b4a3235a819e935590e
--- /dev/null
+++ b/ios/chrome/browser/ui/tools_menu/request_desktop_mobile_site_egtest.mm
@@ -0,0 +1,293 @@
+// 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 <XCTest/XCTest.h>
+
+#include "base/strings/sys_string_conversions.h"
+#include "components/strings/grit/components_strings.h"
+#import "ios/chrome/browser/ui/chrome_web_view_factory.h"
+#import "ios/chrome/browser/ui/toolbar/toolbar_controller.h"
+#include "ios/chrome/browser/ui/tools_menu/tools_menu_constants.h"
+#import "ios/chrome/browser/ui/uikit_ui_util.h"
+#include "ios/chrome/grit/ios_strings.h"
+#import "ios/chrome/test/earl_grey/accessibility_util.h"
+#import "ios/chrome/test/earl_grey/chrome_earl_grey.h"
+#import "ios/chrome/test/earl_grey/chrome_earl_grey_ui.h"
+#import "ios/chrome/test/earl_grey/chrome_matchers.h"
+#import "ios/chrome/test/earl_grey/chrome_test_case.h"
+#import "ios/web/public/test/http_server.h"
+#include "ios/web/public/test/http_server_util.h"
+#include "ios/web/public/test/response_providers/data_response_provider.h"
+#include "ui/base/l10n/l10n_util.h"
+
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
+using chrome_test_util::WebViewContainingText;
+
+namespace {
+
+const char kUserAgentTestURL[] =
+    "http://ios/testing/data/http_server_files/user_agent_test_page.html";
+
+const char kMobileSiteLabel[] = "Mobile";
+
+const char kDesktopSiteLabel[] = "Desktop";
+
+// Matcher for the button to request desktop site.
+id<GREYMatcher> RequestDesktopButton() {
+  return grey_accessibilityID(kToolsMenuRequestDesktopId);
+}
+
+// Matcher for the button to request mobile site.
+id<GREYMatcher> RequestMobileButton() {
+  return grey_accessibilityID(kToolsMenuRequestMobileId);
+}
+
+// A ResponseProvider that provides user agent for httpServer request.
+class UserAgentResponseProvider : public web::DataResponseProvider {
+ public:
+  bool CanHandleRequest(const Request& request) override { return true; }
+
+  void GetResponseHeadersAndBody(
+      const Request& request,
+      scoped_refptr<net::HttpResponseHeaders>* headers,
+      std::string* response_body) override {
+    // Do not return anything if static plist file has been requested,
+    // as plain text is not a valid property list content.
+    if ([[base::SysUTF8ToNSString(request.url.spec()) pathExtension]
+            isEqualToString:@"plist"]) {
+      *headers =
+          web::ResponseProvider::GetResponseHeaders("", net::HTTP_NO_CONTENT);
+      return;
+    }
+
+    *headers = web::ResponseProvider::GetDefaultResponseHeaders();
+    std::string userAgent;
+    const std::string kDesktopUserAgent =
+        base::SysNSStringToUTF8(ChromeWebView::kDesktopUserAgent);
+    if (request.headers.GetHeader("User-Agent", &userAgent) &&
+        userAgent == kDesktopUserAgent) {
+      response_body->assign("Desktop");
+    } else {
+      response_body->assign("Mobile");
+    }
+  }
+};
+}  // namespace
+
+// Tests for the tools popup menu.
+@interface RequestDesktopMobileSiteTestCase : ChromeTestCase
+@end
+
+@implementation RequestDesktopMobileSiteTestCase
+
+// Tests that requesting desktop site of a page works and the user agent
+// propagates to the next navigations in the same tab.
+- (void)testRequestDesktopSitePropagatesToNextNavigations {
+  std::unique_ptr<web::DataResponseProvider> provider(
+      new UserAgentResponseProvider());
+  web::test::SetUpHttpServer(std::move(provider));
+
+  [ChromeEarlGrey loadURL:web::test::HttpServer::MakeUrl("http://1.com")];
+  // Verify initial reception of the mobile site.
+  [[EarlGrey selectElementWithMatcher:WebViewContainingText(kMobileSiteLabel)]
+      assertWithMatcher:grey_notNil()];
+
+  // Request and verify reception of the desktop site.
+  [ChromeEarlGreyUI openToolsMenu];
+  [[EarlGrey selectElementWithMatcher:RequestDesktopButton()]
+      performAction:grey_tap()];
+  [[EarlGrey selectElementWithMatcher:WebViewContainingText(kDesktopSiteLabel)]
+      assertWithMatcher:grey_notNil()];
+
+  // Verify that desktop user agent propagates.
+  [ChromeEarlGrey loadURL:web::test::HttpServer::MakeUrl("http://2.com")];
+  [[EarlGrey selectElementWithMatcher:WebViewContainingText(kDesktopSiteLabel)]
+      assertWithMatcher:grey_notNil()];
+}
+
+// Tests that requesting desktop site of a page works and desktop user agent
+// does not propagate to next the new tab.
+- (void)testRequestDesktopSiteDoesNotPropagateToNewTab {
+  std::unique_ptr<web::DataResponseProvider> provider(
+      new UserAgentResponseProvider());
+  web::test::SetUpHttpServer(std::move(provider));
+
+  [ChromeEarlGrey loadURL:web::test::HttpServer::MakeUrl("http://1.com")];
+  // Verify initial reception of the mobile site.
+  [[EarlGrey selectElementWithMatcher:WebViewContainingText(kMobileSiteLabel)]
+      assertWithMatcher:grey_notNil()];
+
+  // Request and verify reception of the desktop site.
+  [ChromeEarlGreyUI openToolsMenu];
+  [[EarlGrey selectElementWithMatcher:RequestDesktopButton()]
+      performAction:grey_tap()];
+  [[EarlGrey selectElementWithMatcher:WebViewContainingText(kDesktopSiteLabel)]
+      assertWithMatcher:grey_notNil()];
+
+  // Verify that desktop user agent does not propagate to new tab.
+  [ChromeEarlGreyUI openNewTab];
+  [ChromeEarlGrey loadURL:web::test::HttpServer::MakeUrl("http://2.com")];
+  [[EarlGrey selectElementWithMatcher:WebViewContainingText(kMobileSiteLabel)]
+      assertWithMatcher:grey_notNil()];
+}
+
+// Tests that requesting desktop site of a page works and going back re-opens
+// mobile version of the page.
+- (void)testRequestDesktopSiteGoBackToMobile {
+  std::unique_ptr<web::DataResponseProvider> provider(
+      new UserAgentResponseProvider());
+  web::test::SetUpHttpServer(std::move(provider));
+
+  [ChromeEarlGrey loadURL:web::test::HttpServer::MakeUrl("http://1.com")];
+  // Verify initial reception of the mobile site.
+  [[EarlGrey selectElementWithMatcher:WebViewContainingText(kMobileSiteLabel)]
+      assertWithMatcher:grey_notNil()];
+
+  // Request and verify reception of the desktop site.
+  [ChromeEarlGreyUI openToolsMenu];
+  [[EarlGrey selectElementWithMatcher:RequestDesktopButton()]
+      performAction:grey_tap()];
+  [[EarlGrey selectElementWithMatcher:WebViewContainingText(kDesktopSiteLabel)]
+      assertWithMatcher:grey_notNil()];
+
+  // Verify that going back returns to the mobile site.
+  [[EarlGrey selectElementWithMatcher:chrome_test_util::BackButton()]
+      performAction:grey_tap()];
+  [[EarlGrey selectElementWithMatcher:WebViewContainingText(kMobileSiteLabel)]
+      assertWithMatcher:grey_notNil()];
+}
+
+// Tests that requesting mobile site of a page works and the user agent
+// propagates to the next navigations in the same tab.
+- (void)testRequestMobileSitePropagatesToNextNavigations {
+  std::unique_ptr<web::DataResponseProvider> provider(
+      new UserAgentResponseProvider());
+  web::test::SetUpHttpServer(std::move(provider));
+
+  [ChromeEarlGrey loadURL:web::test::HttpServer::MakeUrl("http://1.com")];
+  // Verify initial reception of the mobile site.
+  [[EarlGrey selectElementWithMatcher:WebViewContainingText(kMobileSiteLabel)]
+      assertWithMatcher:grey_notNil()];
+
+  // Request and verify reception of the desktop site.
+  [ChromeEarlGreyUI openToolsMenu];
+  [[EarlGrey selectElementWithMatcher:RequestDesktopButton()]
+      performAction:grey_tap()];
+  [[EarlGrey selectElementWithMatcher:WebViewContainingText(kDesktopSiteLabel)]
+      assertWithMatcher:grey_notNil()];
+
+  // Request and verify reception of the mobile site.
+  [ChromeEarlGreyUI openToolsMenu];
+  [[EarlGrey selectElementWithMatcher:RequestMobileButton()]
+      performAction:grey_tap()];
+  [[EarlGrey selectElementWithMatcher:WebViewContainingText(kMobileSiteLabel)]
+      assertWithMatcher:grey_notNil()];
+
+  // Verify that mobile user agent propagates.
+  [ChromeEarlGrey loadURL:web::test::HttpServer::MakeUrl("http://2.com")];
+  [[EarlGrey selectElementWithMatcher:WebViewContainingText(kMobileSiteLabel)]
+      assertWithMatcher:grey_notNil()];
+}
+
+// Tests that requesting mobile site of a page works and going back re-opens
+// desktop version of the page.
+- (void)testRequestMobileSiteGoBackToDesktop {
+  std::unique_ptr<web::DataResponseProvider> provider(
+      new UserAgentResponseProvider());
+  web::test::SetUpHttpServer(std::move(provider));
+
+  [ChromeEarlGrey loadURL:web::test::HttpServer::MakeUrl("http://1.com")];
+  // Verify initial reception of the mobile site.
+  [[EarlGrey selectElementWithMatcher:WebViewContainingText(kMobileSiteLabel)]
+      assertWithMatcher:grey_notNil()];
+
+  // Request and verify reception of the desktop site.
+  [ChromeEarlGreyUI openToolsMenu];
+  [[EarlGrey selectElementWithMatcher:RequestDesktopButton()]
+      performAction:grey_tap()];
+  [[EarlGrey selectElementWithMatcher:WebViewContainingText(kDesktopSiteLabel)]
+      assertWithMatcher:grey_notNil()];
+
+  // Request and verify reception of the mobile site.
+  [ChromeEarlGreyUI openToolsMenu];
+  [[EarlGrey selectElementWithMatcher:RequestMobileButton()]
+      performAction:grey_tap()];
+  [[EarlGrey selectElementWithMatcher:WebViewContainingText(kMobileSiteLabel)]
+      assertWithMatcher:grey_notNil()];
+
+  // Verify that going back returns to the desktop site.
+  [[EarlGrey selectElementWithMatcher:chrome_test_util::BackButton()]
+      performAction:grey_tap()];
+  [[EarlGrey selectElementWithMatcher:WebViewContainingText(kDesktopSiteLabel)]
+      assertWithMatcher:grey_notNil()];
+}
+
+// Tests that requesting desktop site button is not enabled on new tab pages.
+- (void)testRequestDesktopSiteNotEnabledOnNewTabPage {
+  // Verify tapping on request desktop button is no-op.
+  [ChromeEarlGreyUI openToolsMenu];
+  [[[EarlGrey selectElementWithMatcher:RequestDesktopButton()]
+      assertWithMatcher:grey_notNil()] performAction:grey_tap()];
+  [[EarlGrey selectElementWithMatcher:RequestDesktopButton()]
+      assertWithMatcher:grey_notNil()];
+}
+
+// Tests that requesting desktop site button is not enabled on WebUI pages.
+- (void)testRequestDesktopSiteNotEnabledOnWebUIPage {
+  [ChromeEarlGrey loadURL:GURL("chrome://version")];
+
+  // Verify tapping on request desktop button is no-op.
+  [ChromeEarlGreyUI openToolsMenu];
+  [[[EarlGrey selectElementWithMatcher:RequestDesktopButton()]
+      assertWithMatcher:grey_notNil()] performAction:grey_tap()];
+  [[EarlGrey selectElementWithMatcher:RequestDesktopButton()]
+      assertWithMatcher:grey_notNil()];
+}
+
+// Tests that navigator.appVersion JavaScript API returns correct string for
+// desktop User Agent.
+- (void)testAppVersionJSAPIWithDesktopUserAgent {
+  web::test::SetUpFileBasedHttpServer();
+  [ChromeEarlGrey loadURL:web::test::HttpServer::MakeUrl(kUserAgentTestURL)];
+  // Verify initial reception of the mobile site.
+  [[EarlGrey selectElementWithMatcher:WebViewContainingText(kMobileSiteLabel)]
+      assertWithMatcher:grey_notNil()];
+
+  // Request and verify reception of the desktop site.
+  [ChromeEarlGreyUI openToolsMenu];
+  [[EarlGrey selectElementWithMatcher:RequestDesktopButton()]
+      performAction:grey_tap()];
+  [[EarlGrey selectElementWithMatcher:WebViewContainingText(kDesktopSiteLabel)]
+      assertWithMatcher:grey_notNil()];
+}
+
+// Tests that navigator.appVersion JavaScript API returns correct string for
+// mobile User Agent.
+- (void)testAppVersionJSAPIWithMobileUserAgent {
+  web::test::SetUpFileBasedHttpServer();
+  [ChromeEarlGrey loadURL:web::test::HttpServer::MakeUrl(kUserAgentTestURL)];
+  // Verify initial reception of the mobile site.
+  [[EarlGrey selectElementWithMatcher:WebViewContainingText(kMobileSiteLabel)]
+      assertWithMatcher:grey_notNil()];
+
+  // Request and verify reception of the desktop site.
+  [ChromeEarlGreyUI openToolsMenu];
+  [[EarlGrey selectElementWithMatcher:RequestDesktopButton()]
+      performAction:grey_tap()];
+  [[EarlGrey selectElementWithMatcher:WebViewContainingText(kDesktopSiteLabel)]
+      assertWithMatcher:grey_notNil()];
+
+  // Request and verify reception of the mobile site.
+  [ChromeEarlGreyUI openToolsMenu];
+  [[EarlGrey selectElementWithMatcher:RequestMobileButton()]
+      performAction:grey_tap()];
+  [[EarlGrey selectElementWithMatcher:WebViewContainingText(kMobileSiteLabel)]
+      assertWithMatcher:grey_notNil()];
+}
+
+@end