Upstream Chrome on iOS source code [10/11].

ios/chrome/browser/web/forms_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 <XCTest/XCTest.h>
+
+#include "base/mac/scoped_nsobject.h"
+#include "base/strings/stringprintf.h"
+#include "base/strings/sys_string_conversions.h"
+#include "components/strings/grit/components_strings.h"
+#import "ios/chrome/browser/ui/commands/generic_chrome_command.h"
+#include "ios/chrome/browser/ui/commands/ios_command_ids.h"
+#include "ios/chrome/browser/ui/ui_util.h"
+#import "ios/chrome/test/app/chrome_test_util.h"
+#include "ios/chrome/test/app/navigation_test_util.h"
+#include "ios/chrome/test/app/web_view_interaction_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/wait_util.h"
+#import "ios/web/public/test/http_server.h"
+#import "ios/web/public/test/http_server_util.h"
+#include "ios/web/public/test/response_providers/html_response_provider.h"
+#include "ios/web/public/test/response_providers/html_response_provider_impl.h"
+
+namespace {
+
+// URL for a generic website in the user navigation flow.
+const char kGenericUrl[] = "http://generic";
+
+// URL for the server to print the HTTP method and the request body.
+const char kPrintFormDataUrl[] = "http://printFormData";
+
+// URL for the server that redirects to kPrintPostData with a 302.
+const char kRedirectUrl[] = "http://redirect";
+
+// URL for the server to return a page that posts a form with some data to
+// |kPrintPostData|.
+const char kFormUrl[] = "http://formURL";
+
+// URL for the server to return a page that posts to |kRedirect|.
+const char kRedirectFormUrl[] = "http://redirectFormURL";
+
+// Label for the button in the form.
+const char kSubmitButton[] = "Submit";
+
+// Expected response from the server.
+const char kExpectedPostData[] = "POST Data=Unicorn";
+
+}  // namespace
+
+// Tests submition of HTTP forms POST data including cases involving navigation.
+@interface FormsTestCase : ChromeTestCase
+@end
+
+@implementation FormsTestCase
+
+// Sets up server urls and responses.
+- (void)setUp {
+  [super setUp];
+  std::map<GURL, HtmlResponseProviderImpl::Response> responses;
+
+  const char* formHtml =
+      "<form method=\"post\" action=\"%s\">"
+      "<textarea rows=\"1\" name=\"Data\">Unicorn</textarea>"
+      "<input type=\"submit\" value=\"%s\" id=\"%s\">"
+      "</form>";
+  GURL printFormDataUrl = web::test::HttpServer::MakeUrl(kPrintFormDataUrl);
+
+  const GURL formUrl = web::test::HttpServer::MakeUrl(kFormUrl);
+  responses[formUrl] = HtmlResponseProviderImpl::GetSimpleResponse(
+      base::StringPrintf(formHtml, printFormDataUrl.spec().c_str(),
+                         kSubmitButton, kSubmitButton));
+
+  const GURL redirectFormUrl = web::test::HttpServer::MakeUrl(kRedirectFormUrl);
+  const std::string redirectFormResponse = base::StringPrintf(
+      formHtml, web::test::HttpServer::MakeUrl(kRedirectUrl).spec().c_str(),
+      kSubmitButton, kSubmitButton);
+  responses[redirectFormUrl] =
+      HtmlResponseProviderImpl::GetSimpleResponse(redirectFormResponse);
+
+  const GURL redirectUrl = web::test::HttpServer::MakeUrl(kRedirectUrl);
+  responses[redirectUrl] = HtmlResponseProviderImpl::GetRedirectResponse(
+      printFormDataUrl, net::HTTP_FOUND);
+
+  std::unique_ptr<web::DataResponseProvider> provider(
+      new HtmlResponseProvider(responses));
+  web::test::SetUpHttpServer(std::move(provider));
+}
+
+// Submits the html form and verifies the destination url.
+- (void)submitForm {
+  chrome_test_util::TapWebViewElementWithId(kSubmitButton);
+
+  GURL url = web::test::HttpServer::MakeUrl(kPrintFormDataUrl);
+  id<GREYMatcher> URLMatcher = chrome_test_util::omniboxText(url.GetContent());
+  [[EarlGrey selectElementWithMatcher:URLMatcher]
+      assertWithMatcher:grey_notNil()];
+}
+
+// Waits for the |expectedResponse| within the web view.
+- (void)waitForExpectedResponse:(std::string)expectedResponse {
+  [[GREYCondition
+      conditionWithName:@"Waiting for webview to display resulting text."
+                  block:^BOOL {
+                    id<GREYMatcher> webViewMatcher =
+                        chrome_test_util::webViewContainingText(
+                            expectedResponse);
+                    NSError* error = nil;
+                    [[EarlGrey selectElementWithMatcher:webViewMatcher]
+                        assertWithMatcher:grey_notNil()
+                                    error:&error];
+                    return error == nil;
+                  }] waitWithTimeout:5];
+}
+
+// Waits for view with Tab History accessibility ID.
+- (void)waitForTabHistoryView {
+  [[GREYCondition conditionWithName:@"Waiting for Tab History to display."
+                              block:^BOOL {
+                                NSError* error = nil;
+                                id<GREYMatcher> tabHistory =
+                                    grey_accessibilityID(@"Tab History");
+                                [[EarlGrey selectElementWithMatcher:tabHistory]
+                                    assertWithMatcher:grey_notNil()
+                                                error:&error];
+                                return error == nil;
+                              }] waitWithTimeout:5];
+}
+
+// Reloads the web view and waits for the loading to complete.
+// TODO(crbug.com/638674): Evaluate if this can move to shared code
+- (void)reloadPage {
+  base::scoped_nsobject<GenericChromeCommand> reloadCommand(
+      [[GenericChromeCommand alloc] initWithTag:IDC_RELOAD]);
+  chrome_test_util::RunCommandWithActiveViewController(reloadCommand);
+
+  [ChromeEarlGrey waitForPageToFinishLoading];
+}
+
+// Navigates back to the previous webpage.
+- (void)goBack {
+  base::scoped_nsobject<GenericChromeCommand> backCommand(
+      [[GenericChromeCommand alloc] initWithTag:IDC_BACK]);
+  chrome_test_util::RunCommandWithActiveViewController(backCommand);
+
+  [ChromeEarlGrey waitForPageToFinishLoading];
+}
+
+// Open back navigation history.
+- (void)openBackHistory {
+  id<GREYMatcher> back =
+      chrome_test_util::buttonWithAccessibilityLabelId(IDS_ACCNAME_BACK);
+  [[EarlGrey selectElementWithMatcher:back] performAction:grey_longPress()];
+}
+
+// Navigates forward to a previous webpage.
+// TODO(crbug.com/638674): Evaluate if this can move to shared code
+- (void)goForward {
+  base::scoped_nsobject<GenericChromeCommand> forwardCommand(
+      [[GenericChromeCommand alloc] initWithTag:IDC_FORWARD]);
+  chrome_test_util::RunCommandWithActiveViewController(forwardCommand);
+
+  [ChromeEarlGrey waitForPageToFinishLoading];
+}
+
+// Accepts the warning that the form POST data will be resent.
+- (void)confirmResendWarning {
+  id<GREYMatcher> resendWarning =
+      chrome_test_util::buttonWithAccessibilityLabelId(
+          IDS_HTTP_POST_WARNING_RESEND);
+  [[EarlGrey selectElementWithMatcher:resendWarning]
+      performAction:grey_longPress()];
+}
+
+// Tests whether the request data is resent correctly.
+- (void)testFormsResendPostData {
+  [ChromeEarlGrey loadURL:web::test::HttpServer::MakeUrl(kFormUrl)];
+
+  [self submitForm];
+  [self waitForExpectedResponse:kExpectedPostData];
+
+  [self reloadPage];
+  [self confirmResendWarning];
+
+  [self waitForExpectedResponse:kExpectedPostData];
+}
+
+// Tests that a POST followed by navigating to a new page and then tapping back
+// to the form result page resends data.
+- (void)testFormsResendPostDataAfterTappingBack {
+  [ChromeEarlGrey loadURL:web::test::HttpServer::MakeUrl(kFormUrl)];
+
+  [self submitForm];
+
+  // Go to a new page.
+  [ChromeEarlGrey loadURL:web::test::HttpServer::MakeUrl(kGenericUrl)];
+
+  // Go back and check that the data is resent.
+  [self goBack];
+  [self confirmResendWarning];
+  [self waitForExpectedResponse:kExpectedPostData];
+}
+
+// Tests that a POST followed by tapping back to the form page and then tapping
+// forward to the result page resends data.
+- (void)testFormsResendPostDataAfterTappingBackAndForward {
+  [ChromeEarlGrey loadURL:web::test::HttpServer::MakeUrl(kFormUrl)];
+  [self submitForm];
+
+  [self goBack];
+  [self goForward];
+  [self confirmResendWarning];
+  [self waitForExpectedResponse:kExpectedPostData];
+}
+
+// Tests that a POST followed by a new request and then index navigation to get
+// back to the result page resends data.
+- (void)testFormsResendPostDataAfterIndexNavigation {
+  [ChromeEarlGrey loadURL:web::test::HttpServer::MakeUrl(kFormUrl)];
+  [self submitForm];
+
+  // Go to a new page.
+  [ChromeEarlGrey loadURL:web::test::HttpServer::MakeUrl(kGenericUrl)];
+
+  [self openBackHistory];
+  [self waitForTabHistoryView];
+
+  const GURL printURL = web::test::HttpServer::MakeUrl(kPrintFormDataUrl);
+  id<GREYMatcher> historyItem =
+      grey_text(base::SysUTF8ToNSString(printURL.spec()));
+  [[EarlGrey selectElementWithMatcher:historyItem] performAction:grey_tap()];
+
+  [ChromeEarlGrey waitForPageToFinishLoading];
+
+  [self confirmResendWarning];
+  [self waitForExpectedResponse:kExpectedPostData];
+}
+
+// When data is not re-sent, the request is done with a GET method.
+- (void)testFormsDontResendPostData {
+  [ChromeEarlGrey loadURL:web::test::HttpServer::MakeUrl(kFormUrl)];
+  [self submitForm];
+
+  [self reloadPage];
+
+  // Abort the reload.
+  if (IsIPadIdiom()) {
+    // On tablet, dismiss the popover.
+    base::scoped_nsobject<GREYElementMatcherBlock> matcher([
+        [GREYElementMatcherBlock alloc]
+        initWithMatchesBlock:^BOOL(UIView* view) {
+          return [NSStringFromClass([view class]) hasPrefix:@"UIDimmingView"];
+        }
+        descriptionBlock:^(id<GREYDescription> description) {
+          [description appendText:@"class prefixed with UIDimmingView"];
+        }]);
+    [[EarlGrey selectElementWithMatcher:matcher]
+        performAction:grey_tapAtPoint(CGPointMake(50.0f, 50.0f))];
+  } else {
+    // On handset, dismiss via the cancel button.
+    id<GREYMatcher> cancel =
+        chrome_test_util::buttonWithAccessibilityLabelId(IDS_CANCEL);
+    [[EarlGrey selectElementWithMatcher:cancel] performAction:grey_tap()];
+  }
+  // Check that the POST is changed to a GET
+  [self waitForExpectedResponse:"GET"];
+}
+
+// Tests that a POST followed by a redirect does not show the popup.
+- (void)testFormsDontResendPostDataAfterRedirect {
+  [ChromeEarlGrey loadURL:web::test::HttpServer::MakeUrl(kRedirectFormUrl)];
+  // Submit the form, which redirects before printing the data.
+  [self submitForm];
+  // Check that the redirect changes the POST to a GET.
+  [self waitForExpectedResponse:"GET"];
+  [self reloadPage];
+
+  // Check that the popup did not show
+  id<GREYMatcher> resendWarning =
+      chrome_test_util::buttonWithAccessibilityLabelId(
+          IDS_HTTP_POST_WARNING_RESEND);
+  [[EarlGrey selectElementWithMatcher:resendWarning]
+      assertWithMatcher:grey_nil()];
+
+  [self waitForExpectedResponse:"GET"];
+}
+
+@end