ios/web/test/wk_web_view_crash_utils.mm

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #import "ios/web/test/wk_web_view_crash_utils.h"
   6
   7 #import <Foundation/Foundation.h>
   8
   9 #include "base/logging.h"
  10 #import "base/mac/scoped_nsobject.h"
  11 #include "ios/web/public/test/test_browser_state.h"
  12 #import "ios/web/public/web_view_creation_util.h"
  13 #import "third_party/ocmock/OCMock/NSInvocation+OCMAdditions.h"
  14 #import "third_party/ocmock/OCMock/OCMock.h"
  15
  16 namespace {
  17
  18 // Returns an OCMocked WKWebView whose |evaluateJavaScript:stringResultHandler:|
  19 // method has been mocked to execute |block| instead. |block| cannot be nil.
  20 WKWebView* CreateMockWKWebViewWithStubbedJSEvalFunction(
  21     void (^block)(NSInvocation*)) {
  22   DCHECK(block);
  23   web::TestBrowserState browser_state;
  24   base::scoped_nsobject<WKWebView> webView(
  25       web::CreateWKWebView(CGRectZero, &browser_state));
  26   id mockWebView = [OCMockObject partialMockForObject:webView];
  27   [[[mockWebView stub] andDo:^void(NSInvocation* invocation) {
  28       block(invocation);
  29   }] evaluateJavaScript:OCMOCK_ANY completionHandler:OCMOCK_ANY];
  30   return [mockWebView retain];
  31 }
  32
  33 }  // namespace
  34
  35 namespace web {
  36
  37 void SimulateWKWebViewCrash(WKWebView* webView) {
  38   [webView performSelector:@selector(_processDidExit)];
  39 }
  40
  41 WKWebView* CreateTerminatedWKWebView() {
  42   id fail = ^void(NSInvocation* invocation) {
  43       // Always fails with WKErrorWebContentProcessTerminated error.
  44       NSError* error =
  45           [NSError errorWithDomain:WKErrorDomain
  46                               code:WKErrorWebContentProcessTerminated
  47                           userInfo:nil];
  48
  49       void (^completionHandler)(id, NSError*) =
  50           [invocation getArgumentAtIndexAsObject:3];
  51       completionHandler(nil, error);
  52   };
  53   return CreateMockWKWebViewWithStubbedJSEvalFunction(fail);
  54 }
  55
  56 WKWebView* CreateHealthyWKWebView() {
  57   id succeed = ^void(NSInvocation* invocation) {
  58       void (^completionHandler)(id, NSError*) =
  59           [invocation getArgumentAtIndexAsObject:3];
  60       // Always succceeds with nil result.
  61       completionHandler(nil, nil);
  62   };
  63   return CreateMockWKWebViewWithStubbedJSEvalFunction(succeed);
  64 }
  65
  66 }  // namespace web