mozilla-central/browser/components/urlbar/tests/browser/browser_blobIcons.js (file symbol)

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Test Info: Warnings

/* Any copyright is dedicated to the Public Domain.
// Tests `Blob` icon management in the view.
"use strict";
// `URL.createObjectURL()` should be called the first time a blob icon is shown
// while the view is open, and `revokeObjectURL()` should be called when the
// view is closed.
add_task(async function test() {
let sandbox = sinon.createSandbox();
registerCleanupFunction(() => sandbox.restore());
// Spy on `URL.createObjectURL()` and `revokeObjectURL()`.
let spies = ["createObjectURL", "revokeObjectURL"].reduce((memo, name) => {
memo[name] = sandbox.spy(Cu.getGlobalForObject(gURLBar.view).URL, name);
return memo;
}, {});
// Do a search and close the view.
await UrlbarTestUtils.promiseAutocompleteResultPopup({
window,
value: "test",
});
await UrlbarTestUtils.promisePopupClose(window);
// No blob URLs should have been created or revoked since no results that have
// blob icons were matched.
checkCallCounts(spies, {
createObjectURL: 0,
revokeObjectURL: 0,
});
// Create a test provider that returns a result with a blob icon.
let provider = new UrlbarTestUtils.TestProvider({
results: [
new UrlbarResult(
UrlbarUtils.RESULT_TYPE.URL,
UrlbarUtils.RESULT_SOURCE.OTHER_LOCAL,
{
iconBlob: new Blob([new Uint8Array([])]),
}
),
],
});
UrlbarProvidersManager.registerProvider(provider);
// Do some searches.
await doSearches(provider, spies, {
createObjectURL: 1,
revokeObjectURL: 0,
});
// Closing the view should cause `revokeObjectURL()` to be called.
await UrlbarTestUtils.promisePopupClose(window);
checkCallCounts(spies, {
createObjectURL: 1,
revokeObjectURL: 1,
});
// Do some more searches.
await doSearches(provider, spies, {
createObjectURL: 2,
revokeObjectURL: 1,
});
// Close the view.
await UrlbarTestUtils.promisePopupClose(window);
checkCallCounts(spies, {
createObjectURL: 2,
revokeObjectURL: 2,
});
// Remove the provider, do another search, and close the view. Since no
// results with blob icons are matched, the call counts should not change.
UrlbarProvidersManager.unregisterProvider(provider);
await UrlbarTestUtils.promiseAutocompleteResultPopup({
window,
value: "test",
});
await UrlbarTestUtils.promisePopupClose(window);
checkCallCounts(spies, {
createObjectURL: 2,
revokeObjectURL: 2,
});
sandbox.restore();
});
async function doSearches(provider, spies, expectedCountsByName) {
let previousImage;
for (let i = 0; i < 3; i++) {
await UrlbarTestUtils.promiseAutocompleteResultPopup({
window,
value: "test " + i,
});
let result = await getTestResult(provider);
Assert.ok(result, "Test result should be present");
Assert.ok(result.image, "Row has an icon with a src");
Assert.ok(result.image.startsWith("blob:"), "Row icon src is a blob URL");
if (i > 0) {
Assert.equal(
result.image,
previousImage,
"Blob URL should be the same as in previous searches"
);
}
previousImage = result.image;
// `createObjectURL()` should be called only once across all searches since
// the view remains open the whole time.
checkCallCounts(spies, expectedCountsByName);
}
}
async function getTestResult(provider) {
for (let i = 0; i < UrlbarTestUtils.getResultCount(window); i++) {
let result = await UrlbarTestUtils.getDetailsOfResultAt(window, i);
if (result.result.providerName == provider.name) {
return result;
}
}
return null;
}
function checkCallCounts(spies, expectedCountsByName) {
for (let [name, count] of Object.entries(expectedCountsByName)) {
Assert.strictEqual(spies[name].callCount, count, "Spy call count: " + name);
}
}