<!DOCTYPE html>

<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>

<style>
#test1 {
    color: text;
}
</style>

<div id="test1"></div>

<script>
function test_prop(id, prop, expected) {
    assert_equals(window.getComputedStyle(document.getElementById(id)).getPropertyValue(prop), expected);
}

function test_color_is_black(id) {
    test_prop("test1", "color", "rgb(0, 0, 0)");
}

test(function() {
    // The semantic text color should be black.
    test_color_is_black("test1");
}, "Element colors are correct in light color scheme with only light supported color scheme");

test(function() {
    document.body.style.setProperty("color-scheme", "light dark");
}, "Color schemes changed to light and dark");

test(function() {
    // The semantic text color should be black.
    test_color_is_black("test1");
}, "Element colors are correct in light color scheme with light and dark supported color scheme");

test(function() {
    document.body.style.setProperty("color-scheme", "dark");
}, "Color schemes changed to dark");

test(function() {
    test_color_is_black("test1");
}, "Element colors are correct in light color scheme with only dark supported color scheme");

test(function() {
    document.body.style.setProperty("color-scheme", "light foo");
}, "Color schemes changed to light and a bogus value");

test(function() {
    // The semantic text color should be black again.
    test_color_is_black("test1");
}, "Element colors are correct in light color scheme with only light supported color scheme 2");

test(function() {
    document.body.style.setProperty("color-scheme", "auto");
}, "Color schemes changed to auto value");

test(function() {
    // The semantic text color should be black still.
    test_color_is_black("test1");
}, "Element colors are correct in light color scheme with implicit light supported color scheme");

test(function() {
    let meta = document.createElement("meta");
    meta.id = "test-meta";
    meta.name = "color-scheme";
    meta.content = "light dark";
    document.head.appendChild(meta);
}, "Color schemes changed to light and dark via <meta> element");

test(function() {
    test_color_is_black("test1");
}, "Element colors are correct in light color scheme with light and dark supported color scheme via <meta> element");

test(function() {
    document.body.style.setProperty("color-scheme", "light");
}, "Color schemes changed to light value");

test(function() {
    // The semantic text color should be black again.
    test_color_is_black("test1");
}, "Element colors are correct in light color scheme with explicit light, overriding <meta> element");

test(function() {
    document.getElementById("test-meta").remove();
}, "Remove test meta element");

test(function() {
    document.body.style.setProperty("color-scheme", "light dark");
}, "Color schemes changed to light and dark 2");

test(function() {
    test_color_is_black("test1");
}, "Element colors are correct in light color scheme with light and dark supported color scheme 2");

test(function() {
    document.body.style.setProperty("color-scheme", "foo dark");
}, "Color schemes changed to a bogus value and dark");

test(function() {
    test_color_is_black("test1");
}, "Element colors are correct in light color scheme with dark supported color scheme");
</script>
