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Test Info: Errors
- This test failed 10 times in the preceding 30 days. quicksearch this test
- Manifest: devtools/client/inspector/rules/test/browser_part1.toml
/* Any copyright is dedicated to the Public Domain.
"use strict";
// This test page should follow the overall color scheme.
// Default colors / background colors should change depending on the scheme.
<!DOCTYPE html>
<html lang=en>
<meta charset=utf-8>
<meta name=color-scheme content="dark light">
Hello!
`;
add_task(async function () {
await addTab(TEST_URI);
const { inspector } = await openRuleView();
// Retrieve light and dark scheme buttons.
const lightButton = inspector.panelDoc.querySelector(
"#color-scheme-simulation-light-toggle"
);
const darkButton = inspector.panelDoc.querySelector(
"#color-scheme-simulation-dark-toggle"
);
// Read the color scheme to know if we should click on the light or dark button
// to trigger a change.
info("Retrieve the default color scheme");
let isDarkScheme = await SpecialPowers.spawn(
gBrowser.selectedBrowser,
[],
() => {
return content.matchMedia("(prefers-color-scheme: dark)").matches;
}
);
// Clicks on the simulation button which triggers a color-scheme change.
// If current scheme is light, click on dark and vice-versa.
function toggleScheme() {
info(`Switch color scheme to ${isDarkScheme ? "light" : "dark"} mode`);
isDarkScheme ? lightButton.click() : darkButton.click();
isDarkScheme = !isDarkScheme;
}
info("Retrieve the initial (text) color of the page");
const initialColor = await SpecialPowers.spawn(
gBrowser.selectedBrowser,
[],
() => {
return content.getComputedStyle(content.document.body).color;
}
);
toggleScheme();
info("Wait until the color of the page changes");
await SpecialPowers.spawn(
gBrowser.selectedBrowser,
[initialColor],
_initialColor => {
return ContentTaskUtils.waitForCondition(() => {
const newColor = content.getComputedStyle(content.document.body).color;
return newColor !== _initialColor;
});
}
);
toggleScheme();
info("Wait until the color of the page goes back to the initial value");
await SpecialPowers.spawn(
gBrowser.selectedBrowser,
[initialColor],
_initialColor => {
return ContentTaskUtils.waitForCondition(() => {
const newColor = content.getComputedStyle(content.document.body).color;
return newColor === _initialColor;
});
}
);
});