Upstream Chrome on iOS source code [1/11].

ios/chrome/browser/autofill/form_input_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/strings/sys_string_conversions.h"
+#import "base/test/ios/wait_util.h"
+#include "ios/chrome/browser/autofill/form_input_accessory_view_controller.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/tab_test_util.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"
+#import "ios/testing/earl_grey/disabled_test_macros.h"
+#import "ios/testing/wait_util.h"
+#import "ios/web/public/test/earl_grey/web_view_actions.h"
+#import "ios/web/public/test/earl_grey/web_view_matchers.h"
+#import "ios/web/public/test/http_server.h"
+#include "ios/web/public/test/http_server_util.h"
+
+namespace {
+
+const char kFormElementId1[] = "username";
+const char kFormElementId2[] = "otherstuff";
+
+// If an element is focused in the webview, returns its ID. Returns an empty
+// NSString otherwise.
+NSString* GetFocusedElementId() {
+  NSString* js = @"(function() {"
+                  "  return document.activeElement.id;"
+                  "})();";
+  NSError* error = nil;
+  NSString* result = chrome_test_util::ExecuteJavaScript(js, &error);
+  GREYAssertTrue(!error, @"Unexpected error when executing JavaScript.");
+  return result;
+}
+
+// Verifies that |elementId| is the selected element in the web page.
+void AssertElementIsFocused(const std::string& element_id) {
+  NSString* description =
+      [NSString stringWithFormat:@"Timeout waiting for the focused element in "
+                                 @"the webview to be \"%@\"",
+                                 base::SysUTF8ToNSString(element_id.c_str())];
+  ConditionBlock condition = ^{
+    return base::SysNSStringToUTF8(GetFocusedElementId()) == element_id;
+  };
+  GREYAssert(testing::WaitUntilConditionOrTimeout(10, condition), description);
+}
+
+}  // namespace
+
+// Tests autofill's keyboard and keyboard's accessories handling.
+@interface FormInputTestCase : ChromeTestCase
+@end
+
+@implementation FormInputTestCase
+
+- (void)tearDown {
+  // |testFindDefaultFormAssistControls| disables synchronization.
+  // This makes sure it is enabled if that test has failed and did not enable it
+  // back.
+  [[GREYConfiguration sharedInstance]
+          setValue:@YES
+      forConfigKey:kGREYConfigKeySynchronizationEnabled];
+  [super tearDown];
+}
+
+// Tests finding the correct "next" and "previous" form assist controls in the
+// iOS built-in form assist view.
+- (void)testFindDefaultFormAssistControls {
+  // This test is not relevant on iPads:
+  // the previous and next buttons are not shown in our keyboard input
+  // accessory. Instead, they appear in the native keyboard's shortcut bar (to
+  // the left and right of the QuickType suggestions).
+  if (IsIPadIdiom()) {
+    EARL_GREY_TEST_SKIPPED(@"Skipped for iPad (no hidden toolbar in tablet)");
+  }
+
+  web::test::SetUpFileBasedHttpServer();
+  GURL URL = web::test::HttpServer::MakeUrl(
+      "http://ios/testing/data/http_server_files/multi_field_form.html");
+  [ChromeEarlGrey loadURL:URL];
+
+  id<GREYMatcher> webViewMatcher =
+      chrome_test_util::webViewContainingText("hello!");
+  [[EarlGrey selectElementWithMatcher:webViewMatcher]
+      assertWithMatcher:grey_notNil()];
+
+  // Opening the keyboard from a webview blocks EarlGrey's synchronization.
+  [[GREYConfiguration sharedInstance]
+          setValue:@NO
+      forConfigKey:kGREYConfigKeySynchronizationEnabled];
+
+  // Brings up the keyboard by tapping on one of the form's field.
+  [[EarlGrey
+      selectElementWithMatcher:web::webViewInWebState(
+                                   chrome_test_util::GetCurrentWebState())]
+      performAction:web::webViewTapElement(
+                        chrome_test_util::GetCurrentWebState(),
+                        kFormElementId1)];
+
+  id<GREYMatcher> nextButtonMatcher =
+      chrome_test_util::buttonWithAccessibilityLabelId(
+          IDS_IOS_AUTOFILL_ACCNAME_NEXT_FIELD);
+  id<GREYMatcher> previousButtonMatcher =
+      chrome_test_util::buttonWithAccessibilityLabelId(
+          IDS_IOS_AUTOFILL_ACCNAME_PREVIOUS_FIELD);
+  id<GREYMatcher> closeButtonMatcher =
+      chrome_test_util::buttonWithAccessibilityLabelId(
+          IDS_IOS_AUTOFILL_ACCNAME_HIDE_KEYBOARD);
+
+  // Wait until the keyboard's "Next" button appeared.
+  NSString* description = @"Wait for the keyboard's \"Next\" button to appear.";
+  ConditionBlock condition = ^{
+    NSError* error = nil;
+    [[EarlGrey selectElementWithMatcher:nextButtonMatcher]
+        assertWithMatcher:grey_notNil()
+                    error:&error];
+    return (error == nil);
+  };
+  GREYAssert(testing::WaitUntilConditionOrTimeout(
+                 testing::kWaitForUIElementTimeout, condition),
+             description);
+  base::test::ios::SpinRunLoopWithMinDelay(base::TimeDelta::FromSeconds(1));
+
+  // Verifies that the taped element is focused.
+  AssertElementIsFocused(kFormElementId1);
+
+  // Tap the "Next" button.
+  [[EarlGrey selectElementWithMatcher:nextButtonMatcher]
+      performAction:grey_tap()];
+  AssertElementIsFocused(kFormElementId2);
+
+  // Tap the "Previous" button.
+  [[EarlGrey selectElementWithMatcher:previousButtonMatcher]
+      performAction:grey_tap()];
+  AssertElementIsFocused(kFormElementId1);
+
+  // Tap the "Close" button.
+  [[EarlGrey selectElementWithMatcher:closeButtonMatcher]
+      performAction:grey_tap()];
+
+  [[GREYConfiguration sharedInstance]
+          setValue:@YES
+      forConfigKey:kGREYConfigKeySynchronizationEnabled];
+}
+
+// Tests that trying to programmatically dismiss the keyboard when it isn't
+// visible doesn't crash the browser.
+- (void)testCloseKeyboardWhenNotVisible {
+  FormInputAccessoryViewController* inputAccessoryViewController =
+      chrome_test_util::GetInputAccessoryViewController();
+  GREYAssertNotNil(inputAccessoryViewController,
+                   @"The tab's input accessory view should not be non nil.");
+  [inputAccessoryViewController closeKeyboardWithoutButtonPress];
+}
+
+@end