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Test Info:

add_task(async function setup_pref() {
let isWindows = navigator.platform.indexOf("Win") == 0;
await SpecialPowers.pushPrefEnv({
set: [["apz.test.fails_with_native_injection", isWindows]],
});
});
add_task(async function test_main() {
function httpURL(filename) {
let chromeURL = getRootDirectory(gTestPath) + filename;
return chromeURL.replace(
);
}
const pageUrl = httpURL("helper_test_reset_scaling_zoom.html");
await BrowserTestUtils.withNewTab(pageUrl, async function (browser) {
let getResolution = function () {
return content.window.SpecialPowers.getDOMWindowUtils(
content.window
).getResolution();
};
let doZoomIn = async function () {
await content.window.wrappedJSObject.doZoomIn();
};
let resolution = await ContentTask.spawn(browser, null, getResolution);
is(resolution, 1.0, "Initial page resolution should be 1.0");
await ContentTask.spawn(browser, null, doZoomIn);
resolution = await ContentTask.spawn(browser, null, getResolution);
isnot(resolution, 1.0, "Expected resolution to be bigger than 1.0");
document.getElementById("cmd_fullZoomReset").doCommand();
// Spin the event loop once just to make sure the message gets through
await new Promise(resolve => setTimeout(resolve, 0));
resolution = await ContentTask.spawn(browser, null, getResolution);
is(resolution, 1.0, "Expected resolution to be reset to 1.0");
});
});