Upstream Chrome on iOS source code [7/11].

ios/chrome/browser/ui/settings/block_popups_egtest.mm

Index: ios/chrome/browser/ui/settings/block_popups_egtest.mm
diff --git a/ios/chrome/browser/ui/settings/block_popups_egtest.mm b/ios/chrome/browser/ui/settings/block_popups_egtest.mm
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+// 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/ios/ios_util.h"
+#include "base/strings/sys_string_conversions.h"
+#include "components/content_settings/core/browser/host_content_settings_map.h"
+#include "ios/chrome/browser/browser_state/chrome_browser_state.h"
+#include "ios/chrome/browser/content_settings/host_content_settings_map_factory.h"
+#import "ios/chrome/browser/ui/settings/settings_collection_view_controller.h"
+#import "ios/chrome/browser/ui/tools_menu/tools_menu_view_controller.h"
+#import "ios/chrome/browser/ui/tools_menu/tools_popup_controller.h"
+#include "ios/chrome/grit/ios_strings.h"
+#import "ios/chrome/test/app/chrome_test_util.h"
+#import "ios/chrome/test/app/navigation_test_util.h"
+#import "ios/chrome/test/app/web_view_interaction_test_util.h"
+#import "ios/chrome/test/earl_grey/accessibility_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_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"
+#import "ios/web/public/test/http_server_util.h"
+#import "ios/web/public/test/web_view_interaction_test_util.h"
+#include "ui/base/l10n/l10n_util_mac.h"
+#include "url/gurl.h"
+
+namespace {
+
+// URLs used in the tests.
+const char* kBlockPopupsUrl = "http://blockpopups";
+const char* kOpenedWindowUrl = "http://openedwindow";
+
+// JavaScript to open a new window after a short delay.
+NSString* kBlockPopupsResponseTemplate =
+    @"<input type=\"button\" onclick=\"setTimeout(function() {"
+     "window.open('%@')}, 1)\" "
+     "id=\"openWindow\" "
+     "value=\"openWindow\">";
+const std::string kOpenedWindowResponse = "Opened window";
+
+// Opens the block popups settings page.  Must be called from the NTP.
+void OpenBlockPopupsSettings() {
+  const CGFloat scroll_displacement = 50.0;
+  id<GREYMatcher> tools_menu_table_view_matcher =
+      grey_accessibilityID(kToolsMenuTableViewId);
+  id<GREYMatcher> settings_button_matcher =
+      grey_accessibilityID(kToolsMenuSettingsId);
+  id<GREYMatcher> content_settings_button_matcher =
+      chrome_test_util::buttonWithAccessibilityLabelId(
+          IDS_IOS_CONTENT_SETTINGS_TITLE);
+  id<GREYMatcher> settings_collection_view_matcher =
+      grey_accessibilityID(kSettingsCollectionViewId);
+  id<GREYMatcher> block_popups_button_matcher =
+      chrome_test_util::buttonWithAccessibilityLabelId(IDS_IOS_BLOCK_POPUPS);
+
+  [ChromeEarlGreyUI openToolsMenu];
+  [[[EarlGrey selectElementWithMatcher:settings_button_matcher]
+         usingSearchAction:grey_scrollInDirection(kGREYDirectionDown,
+                                                  scroll_displacement)
+      onElementWithMatcher:tools_menu_table_view_matcher]
+      performAction:grey_tap()];
+
+  [[[EarlGrey selectElementWithMatcher:content_settings_button_matcher]
+         usingSearchAction:grey_scrollInDirection(kGREYDirectionDown,
+                                                  scroll_displacement)
+      onElementWithMatcher:settings_collection_view_matcher]
+      performAction:grey_tap()];
+
+  [[EarlGrey selectElementWithMatcher:block_popups_button_matcher]
+      performAction:grey_tap()];
+}
+
+// Exits out of settings.  Must be called from the block popups settings page.
+void CloseSettings() {
+  [[EarlGrey
+      selectElementWithMatcher:grey_allOf(
+                                   grey_accessibilityID(@"back_bar_button"),
+                                   grey_accessibilityTrait(
+                                       UIAccessibilityTraitButton),
+                                   nil)] performAction:grey_tap()];
+  [[EarlGrey
+      selectElementWithMatcher:grey_allOf(
+                                   grey_accessibilityID(@"back_bar_button"),
+                                   grey_accessibilityTrait(
+                                       UIAccessibilityTraitButton),
+                                   nil)] performAction:grey_tap()];
+  [[EarlGrey
+      selectElementWithMatcher:chrome_test_util::buttonWithAccessibilityLabelId(
+                                   IDS_IOS_NAVIGATION_BAR_DONE_BUTTON)]
+      performAction:grey_tap()];
+}
+
+// ScopedBlockPopupsPref modifies the block popups preference and resets the
+// preference to its original value when this object goes out of scope.
+class ScopedBlockPopupsPref {
+ public:
+  ScopedBlockPopupsPref(ContentSetting setting) {
+    original_setting_ = GetPrefValue();
+    SetPrefValue(setting);
+  }
+  ~ScopedBlockPopupsPref() { SetPrefValue(original_setting_); }
+
+ private:
+  // Gets the current value of the preference.
+  ContentSetting GetPrefValue() {
+    ContentSetting popupSetting =
+        ios::HostContentSettingsMapFactory::GetForBrowserState(
+            chrome_test_util::GetOriginalBrowserState())
+            ->GetDefaultContentSetting(CONTENT_SETTINGS_TYPE_POPUPS, NULL);
+    return popupSetting;
+  }
+
+  // Sets the preference to the given value.
+  void SetPrefValue(ContentSetting setting) {
+    DCHECK(setting == CONTENT_SETTING_BLOCK ||
+           setting == CONTENT_SETTING_ALLOW);
+    ios::ChromeBrowserState* state =
+        chrome_test_util::GetOriginalBrowserState();
+    ios::HostContentSettingsMapFactory::GetForBrowserState(state)
+        ->SetDefaultContentSetting(CONTENT_SETTINGS_TYPE_POPUPS, setting);
+  }
+
+  // Saves the original pref setting so that it can be restored when the scoper
+  // is destroyed.
+  ContentSetting original_setting_;
+
+  DISALLOW_COPY_AND_ASSIGN(ScopedBlockPopupsPref);
+};
+
+// ScopedBlockPopupsException adds an exception to the block popups exception
+// list for as long as this object is in scope.
+class ScopedBlockPopupsException {
+ public:
+  ScopedBlockPopupsException(const std::string& pattern) : pattern_(pattern) {
+    SetException(pattern_, CONTENT_SETTING_ALLOW);
+  }
+  ~ScopedBlockPopupsException() {
+    SetException(pattern_, CONTENT_SETTING_DEFAULT);
+  }
+
+ private:
+  // Adds an exception for the given |pattern|.  If |setting| is
+  // CONTENT_SETTING_DEFAULT, removes the existing exception instead.
+  void SetException(const std::string& pattern, ContentSetting setting) {
+    ios::ChromeBrowserState* browserState =
+        chrome_test_util::GetOriginalBrowserState();
+
+    ContentSettingsPattern exception_pattern =
+        ContentSettingsPattern::FromString(pattern);
+    ios::HostContentSettingsMapFactory::GetForBrowserState(browserState)
+        ->SetContentSettingCustomScope(
+            exception_pattern, ContentSettingsPattern::Wildcard(),
+            CONTENT_SETTINGS_TYPE_POPUPS, std::string(), setting);
+  }
+
+  // The exception pattern that this object is managing.
+  std::string pattern_;
+
+  DISALLOW_COPY_AND_ASSIGN(ScopedBlockPopupsException);
+};
+}  // namespace
+
+// Block Popups tests for Chrome.
+@interface BlockPopupsTestCase : ChromeTestCase
+@end
+
+@implementation BlockPopupsTestCase
+
+// Opens the block popups settings page and verifies that accessibility is set
+// up properly.
+- (void)testAccessibilityOfBlockPopupSettings {
+  OpenBlockPopupsSettings();
+  [[EarlGrey
+      selectElementWithMatcher:grey_accessibilityID(
+                                   @"block_popups_settings_view_controller")]
+      assertWithMatcher:grey_notNil()];
+  chrome_test_util::VerifyAccessibilityForCurrentScreen();
+  CloseSettings();
+}
+
+// Tests that popups are opened in new tabs when the preference is set to ALLOW.
+- (void)testPopupsAllowed {
+  std::map<GURL, std::string> responses;
+  const GURL blockPopupsURL = web::test::HttpServer::MakeUrl(kBlockPopupsUrl);
+  const GURL openedWindowURL = web::test::HttpServer::MakeUrl(kOpenedWindowUrl);
+  NSString* openedWindowURLString =
+      base::SysUTF8ToNSString(openedWindowURL.spec());
+  responses[blockPopupsURL] = base::SysNSStringToUTF8([NSString
+      stringWithFormat:kBlockPopupsResponseTemplate, openedWindowURLString]);
+  responses[openedWindowURL] = kOpenedWindowResponse;
+  web::test::SetUpSimpleHttpServer(responses);
+
+  ScopedBlockPopupsPref prefSetter(CONTENT_SETTING_ALLOW);
+  [ChromeEarlGrey loadURL:blockPopupsURL];
+  chrome_test_util::AssertMainTabCount(1U);
+
+  // Tap the "Open Window" link and make sure the popup opened in a new tab.
+  chrome_test_util::TapWebViewElementWithId("openWindow");
+  chrome_test_util::AssertMainTabCount(2U);
+
+  // No infobar should be displayed.
+  [[EarlGrey selectElementWithMatcher:chrome_test_util::
+                                          staticTextWithAccessibilityLabel(
+                                              @"Pop-ups blocked (1)")]
+      assertWithMatcher:grey_notVisible()];
+}
+
+// Tests that popups are prevented from opening and an infobar is displayed when
+// the preference is set to BLOCK.
+- (void)testPopupsBlocked {
+  std::map<GURL, std::string> responses;
+  const GURL blockPopupsURL = web::test::HttpServer::MakeUrl(kBlockPopupsUrl);
+  const GURL openedWindowURL = web::test::HttpServer::MakeUrl(kOpenedWindowUrl);
+  NSString* openedWindowURLString =
+      base::SysUTF8ToNSString(openedWindowURL.spec());
+  responses[blockPopupsURL] = base::SysNSStringToUTF8([NSString
+      stringWithFormat:kBlockPopupsResponseTemplate, openedWindowURLString]);
+  responses[openedWindowURL] = kOpenedWindowResponse;
+  web::test::SetUpSimpleHttpServer(responses);
+
+  ScopedBlockPopupsPref prefSetter(CONTENT_SETTING_BLOCK);
+  [ChromeEarlGrey loadURL:blockPopupsURL];
+  chrome_test_util::AssertMainTabCount(1U);
+
+  // Tap the "Open Window" link, then make sure the popup was blocked and an
+  // infobar was displayed.  The window.open() call is run via async JS, so the
+  // infobar may not open immediately.
+  chrome_test_util::TapWebViewElementWithId("openWindow");
+  [[GREYCondition
+      conditionWithName:@"Wait for blocked popups infobar to show"
+                  block:^BOOL {
+                    NSError* error = nil;
+                    [[EarlGrey
+                        selectElementWithMatcher:
+                            chrome_test_util::staticTextWithAccessibilityLabel(
+                                @"Pop-ups blocked (1)")]
+                        assertWithMatcher:grey_sufficientlyVisible()
+                                    error:&error];
+                    return error == nil;
+                  }] waitWithTimeout:4.0];
+  chrome_test_util::AssertMainTabCount(1U);
+}
+
+// Tests that the "exceptions" section on the settings page is hidden and
+// revealed properly when the preference switch is toggled.
+- (void)testSettingsPageWithExceptions {
+  std::string allowedPattern = "[*.]example.com";
+  ScopedBlockPopupsPref prefSetter(CONTENT_SETTING_BLOCK);
+  ScopedBlockPopupsException exceptionSetter(allowedPattern);
+
+  OpenBlockPopupsSettings();
+
+  // Make sure that the "example.com" exception is listed.
+  [[EarlGrey selectElementWithMatcher:grey_text(base::SysUTF8ToNSString(
+                                          allowedPattern))]
+      assertWithMatcher:grey_sufficientlyVisible()];
+
+  // Toggle the switch off via the UI and make sure the exceptions are not
+  // visible.
+  [[EarlGrey
+      selectElementWithMatcher:chrome_test_util::collectionViewSwitchCell(
+                                   @"blockPopupsContentView_switch", YES)]
+      performAction:chrome_test_util::turnCollectionViewSwitchOn(NO)];
+  [[EarlGrey selectElementWithMatcher:grey_text(base::SysUTF8ToNSString(
+                                          allowedPattern))]
+      assertWithMatcher:grey_notVisible()];
+  [[EarlGrey
+      selectElementWithMatcher:grey_accessibilityLabel(l10n_util::GetNSString(
+                                   IDS_IOS_NAVIGATION_BAR_EDIT_BUTTON))]
+      assertWithMatcher:grey_notVisible()];
+  [[EarlGrey
+      selectElementWithMatcher:grey_accessibilityLabel(l10n_util::GetNSString(
+                                   IDS_IOS_NAVIGATION_BAR_DONE_BUTTON))]
+      assertWithMatcher:grey_sufficientlyVisible()];
+
+  // Toggle the switch back on via the UI and make sure the exceptions are now
+  // visible.
+  [[EarlGrey
+      selectElementWithMatcher:chrome_test_util::collectionViewSwitchCell(
+                                   @"blockPopupsContentView_switch", NO)]
+      performAction:chrome_test_util::turnCollectionViewSwitchOn(YES)];
+  [[EarlGrey selectElementWithMatcher:grey_text(base::SysUTF8ToNSString(
+                                          allowedPattern))]
+      assertWithMatcher:grey_sufficientlyVisible()];
+  [[EarlGrey
+      selectElementWithMatcher:grey_accessibilityLabel(l10n_util::GetNSString(
+                                   IDS_IOS_NAVIGATION_BAR_EDIT_BUTTON))]
+      assertWithMatcher:grey_sufficientlyVisible()];
+
+  CloseSettings();
+}
+
+@end