Tools/TestWebKitAPI/Tests/mac/DateInputTests.mm

/*
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#include "config.h"

#if ENABLE(INPUT_TYPE_DATE) && PLATFORM(MAC)

#import "TestWKWebView.h"
#import <WebKit/WKPreferencesPrivate.h>
#import <WebKit/_WKInternalDebugFeature.h>
#import <wtf/RetainPtr.h>

static RetainPtr<TestWKWebView> createWebViewForTest()
{
    auto configuration = adoptNS([[WKWebViewConfiguration alloc] init]);
    for (_WKInternalDebugFeature *feature in [WKPreferences _internalDebugFeatures]) {
        if ([feature.key isEqualToString:@"InputTypeDateEnabled"]) {
            [[configuration preferences] _setEnabled:YES forInternalDebugFeature:feature];
            break;
        }
    }

    auto webView = adoptNS([[TestWKWebView alloc] initWithFrame:CGRectMake(0, 0, 400, 400) configuration:configuration.get()]);
    return webView;
}

TEST(DateInputTests, IgnoresUserEditsToLocale)
{
    NSString *dateInputHTMLString = @"<input type='date' value='2020-09-03'>";
    NSString *retrieveOffsetWidthJavaScript = @"document.getElementsByTagName(\"input\")[0].offsetWidth";

    NSString *domain = @"NSGlobalDomain";
    NSString *preferencesKey = @"AppleICUDateFormatStrings";
    NSString *customDateFormat = @"M///d///yy";

    // Set custom date format.
    system([NSString stringWithFormat:@"defaults write %@ %@ -dict-add %@ %@", domain, preferencesKey, @"1", customDateFormat].UTF8String);

    auto webView = createWebViewForTest();
    [webView synchronouslyLoadHTMLString:dateInputHTMLString];

    int widthForCustomFormat = [[webView stringByEvaluatingJavaScript:retrieveOffsetWidthJavaScript] intValue];

    // Remove custom date format.
    system([NSString stringWithFormat:@"defaults delete %@ %@", domain, preferencesKey].UTF8String);

    // Create a new web view, since locale is cached on the old one.
    webView = createWebViewForTest();
    [webView synchronouslyLoadHTMLString:dateInputHTMLString];

    int widthForDefaultFormat = [[webView stringByEvaluatingJavaScript:retrieveOffsetWidthJavaScript] intValue];

    EXPECT_EQ(widthForCustomFormat, widthForDefaultFormat);
}

#endif // ENABLE(INPUT_TYPE_DATE) && PLATFORM(MAC)