Tools/TestWebKitAPI/Tests/WebKitCocoa/MessagePortProviders.mm

/*
 * Copyright (C) 2018 Apple Inc. All rights reserved.
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#import "config.h"

#if PLATFORM(MAC)

#import "PlatformUtilities.h"
#import "TestWKWebView.h"
#import <WebKit/WKWebViewPrivate.h>
#import <WebKit/WebFrame.h>
#import <wtf/RetainPtr.h>

static bool didFinishLoad;

@interface MessagePortFrameLoadDelegate : NSObject <WebFrameLoadDelegate> {
}
@end
@implementation MessagePortFrameLoadDelegate

- (void)webView:(WebView *)sender didFinishLoadForFrame:(WebFrame *)frame
{
    didFinishLoad = true;
}

@end

namespace TestWebKitAPI {

TEST(MessagePort, Providers)
{
    // Loading a WebView that uses message ports guarantees that the default MessagePortChannelProviderImpl is set.
    auto wk1View = adoptNS([[WebView alloc] initWithFrame:NSMakeRect(0, 0, 400, 400) frameName:nil groupName:nil]);
    auto delegate = adoptNS([[MessagePortFrameLoadDelegate alloc] init]);
    [wk1View.get() setFrameLoadDelegate:delegate.get()];
    [[wk1View mainFrame] loadHTMLString:@"<script>new MessageChannel;</script>" baseURL:nil];

    Util::run(&didFinishLoad);

    // Now using a WKWebView to load content that uses message ports will use the WK2-style message ports.
    // This should not conflict with WK1-style message ports.
    // The conflict is caught by a RELEASE_ASSERT so, if this doesn't crash, it passes.
    auto webView = adoptNS([[TestWKWebView alloc] initWithFrame:NSMakeRect(0, 0, 400, 400)]);
    [webView synchronouslyLoadHTMLString:@"<script>new MessageChannel;</script>"];
}

} // namespace TestWebKitAPI

#endif // PLATFORM(MAC)