Tools/TestWebKitAPI/Tests/WebKitCocoa/ReloadWithDifferingInitialScale.mm

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#import "config.h"

#if PLATFORM(IOS_FAMILY)

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

namespace TestWebKitAPI {

TEST(WebKit, ReloadWithDifferingInitialScale)
{
    auto configuration = adoptNS([[WKWebViewConfiguration alloc] init]);

    auto webView = adoptNS([[TestWKWebView alloc] initWithFrame:CGRectMake(0, 0, 375, 375) configuration:configuration.get()]);

    // It is important that we load from a file, not a HTML string, otherwise we don't
    // get a back-forward list item, and thus don't try to restore state.
    [webView synchronouslyLoadTestPageNamed:@"long-email-viewport"];

    [webView waitForNextPresentationUpdate];

    // "fixed-width-viewport" requests a width=375 viewport and has no overflowing
    // content, so we should end up with an initial scale of 1.
    EXPECT_EQ([webView scrollView].zoomScale, 1);

    // Unparenting the view will cause the current state
    // (including isInitialScale=YES and pageScaleFactor=1)
    // to be saved to the back-forward item.
    [webView removeFromSuperview];
    [webView waitForNextPresentationUpdate];

    [webView addToTestWindow];

    // Install the user script, so that the next time we load the page,
    // the document lays out very wide, causing the initial scale to be small.
    auto userScript = adoptNS([[WKUserScript alloc] initWithSource:@"document.body.style.width = '1500px'; setTimeout(function () { window.webkit.messageHandlers.testHandler.postMessage('ranUserScript'); }, 0)" injectionTime:WKUserScriptInjectionTimeAtDocumentEnd forMainFrameOnly:YES]);
    [[webView configuration].userContentController addUserScript:userScript.get()];

    // Reload, causing both the user script and the page state restoration code to run.
    [webView reload];

    [webView waitForMessage:@"ranUserScript"];
    [webView waitForNextPresentationUpdate];

    // Ensure that we did *not* restore pageScaleFactor to 1.
    EXPECT_EQ([webView scrollView].zoomScale, 0.25);
}

} // namespace TestWebKitAPI

#endif