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Test Info:
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CI results over the last 21 days
- Manifest: toolkit/components/aboutmemory/tests/chrome.toml
<?xml version="1.0"?>
<window title="about:memory"
<!-- This file tests "Measure and save…", both with a file picker that
supports save mode and with one that doesn't, like GeckoView's. -->
<!-- test results are displayed in the html:body -->
<iframe id="amFrame" height="400" src="about:memory"></iframe>
<script type="application/javascript">
<![CDATA[
"use strict";
const { Integration } = ChromeUtils.importESModule(
"resource://gre/modules/Integration.sys.mjs"
);
const { MockRegistrar } = ChromeUtils.importESModule(
);
const MockFilePicker = SpecialPowers.MockFilePicker;
const noSaveModePicker = {
QueryInterface: ChromeUtils.generateQI(["nsIFilePicker"]),
init(aBrowsingContext, aTitle, aMode) {
if (aMode == Ci.nsIFilePicker.modeSave) {
throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
}
},
get defaultString() {
return "";
},
set defaultString(aValue) {},
};
function localFile(aPath) {
let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile);
file.initWithPath(aPath);
return file;
}
// about:memory replaces mainDiv whenever it shows a message.
async function clickSaveAndGetMessage() {
let doc = document.getElementById("amFrame").contentDocument;
let oldMain = doc.getElementById("mainDiv");
doc.getElementById("measureAndSaveButton").click();
await SimpleTest.promiseWaitForCondition(
() => doc.getElementById("mainDiv") != oldMain,
"about:memory shows the outcome of saving"
);
return doc.getElementById("mainDiv").firstChild;
}
async function withNoSaveModePicker(aDownloadsDir, aFunc) {
let cid = MockRegistrar.register(
"@mozilla.org/filepicker;1",
noSaveModePicker
);
let downloadsOverride = () => ({
getSystemDownloadsDirectory: () => Promise.resolve(aDownloadsDir),
});
Integration.downloads.register(downloadsOverride);
try {
// XPConnect reports the exception thrown by noSaveModePicker.init().
SimpleTest.expectUncaughtException();
return await aFunc();
} finally {
Integration.downloads.unregister(downloadsOverride);
MockRegistrar.unregister(cid);
}
}
add_setup(async function () {
await SimpleTest.promiseFocus(window);
});
add_task(async function test_picker_with_save_mode() {
let tmpDir = await IOUtils.createUniqueDirectory(
PathUtils.tempDir,
"aboutmemory-save"
);
let picked = PathUtils.join(tmpDir, "picked.json.gz");
let modesWhenConfigured = [];
MockFilePicker.init(window.browsingContext);
try {
MockFilePicker.setFiles([localFile(picked)]);
MockFilePicker.appendFilterCallback = fp =>
modesWhenConfigured.push(fp.mode);
MockFilePicker.appendFiltersCallback = fp =>
modesWhenConfigured.push(fp.mode);
let msg = await clickSaveAndGetMessage();
ok(
msg.textContent.startsWith("Saved memory reports to " + picked),
"saved to the picked file: " + msg.textContent
);
ok(await IOUtils.exists(picked), "the picked file exists");
ok(
modesWhenConfigured.length &&
modesWhenConfigured.every(m => m == Ci.nsIFilePicker.modeSave),
"filters are added after init()"
);
} finally {
MockFilePicker.cleanup();
await IOUtils.remove(tmpDir, { recursive: true });
}
});
add_task(async function test_picker_without_save_mode() {
let tmpDir = await IOUtils.createUniqueDirectory(
PathUtils.tempDir,
"aboutmemory-save"
);
try {
let msg = await withNoSaveModePicker(tmpDir, clickSaveAndGetMessage);
let fallback = PathUtils.join(tmpDir, "memory-report.json.gz");
ok(
msg.textContent.startsWith("Saved memory reports to " + fallback),
"saved to the downloads directory: " + msg.textContent
);
ok(await IOUtils.exists(fallback), "the fallback file exists");
} finally {
await IOUtils.remove(tmpDir, { recursive: true });
}
});
add_task(async function test_fallback_failure_is_reported() {
let tmpDir = await IOUtils.createUniqueDirectory(
PathUtils.tempDir,
"aboutmemory-save"
);
try {
let notADirectory = PathUtils.join(tmpDir, "not-a-directory");
await IOUtils.writeUTF8(notADirectory, "");
let msg = await withNoSaveModePicker(
notADirectory,
clickSaveAndGetMessage
);
ok(
msg.classList.contains("badInputWarning"),
"a failure to save is reported: " + msg.textContent
);
} finally {
await IOUtils.remove(tmpDir, { recursive: true });
}
});
]]>
</script>
</window>