Tools/TestWebKitAPI/Tests/WebKitCocoa/InteractionDeadlockAfterCrash.mm

/*
 * Copyright (C) 2017 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
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 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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#include "config.h"

#import "PlatformUtilities.h"
#import "Test.h"
#import "TestNavigationDelegate.h"
#import "TestWKWebView.h"
#import <WebKit/WKWebViewConfigurationPrivate.h>
#import <WebKit/WKWebViewPrivate.h>
#import <wtf/RetainPtr.h>

@interface NSObject ()

- (BOOL)hasSelectablePositionAtPoint:(CGPoint)point;

@end

#if PLATFORM(IOS_FAMILY)

static UIGestureRecognizer *recursiveFindHighlightLongPressRecognizer(UIView *view)
{
    for (UIGestureRecognizer *recognizer in view.gestureRecognizers) {
        if ([recognizer isKindOfClass:NSClassFromString(@"_UIWebHighlightLongPressGestureRecognizer")])
            return recognizer;
    }

    for (UIView *subview in view.subviews) {
        UIGestureRecognizer *recognizer = recursiveFindHighlightLongPressRecognizer(subview);
        if (recognizer)
            return recognizer;
    }

    return nil;
}

TEST(WebKit, InteractionDeadlockAfterCrash)
{
    RetainPtr<WKWebViewConfiguration> configuration = adoptNS([[WKWebViewConfiguration alloc] init]);

    RetainPtr<WKWebView> webView = adoptNS([[TestWKWebView alloc] initWithFrame:NSMakeRect(0, 0, 100, 100) configuration:configuration.get()]);

    [webView loadHTMLString:@"test" baseURL:nil];
    [webView _test_waitForDidFinishNavigation];

    UIGestureRecognizer *highlightLongPressRecognizer = recursiveFindHighlightLongPressRecognizer(webView.get());
    UIView *interactionView = highlightLongPressRecognizer.view;
    EXPECT_NOT_NULL(highlightLongPressRecognizer);

    // This will start an asynchronous interaction information update.
    BOOL shouldBegin = [[highlightLongPressRecognizer delegate] gestureRecognizerShouldBegin:highlightLongPressRecognizer];
    EXPECT_TRUE(shouldBegin);

    [webView _killWebContentProcessAndResetState];

    [webView loadHTMLString:@"test" baseURL:nil];
    [webView _test_waitForDidFinishNavigation];

    // This will synchronously ensure we have up-to-date interaction information.
    [interactionView hasSelectablePositionAtPoint:CGPointZero];
}

#endif