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<!DOCTYPE html>
<html>
<head>
<title>Test for telemetry for content script injection</title>
<script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
<script src="chrome://mochikit/content/tests/SimpleTest/ExtensionTestUtils.js"></script>
<script src="head.js"></script>
<link rel="stylesheet" href="chrome://mochikit/contents/tests/SimpleTest/test.css"/>
</head>
<body>
<script>
"use strict";
const HISTOGRAM = "WEBEXT_CONTENT_SCRIPT_INJECTION_MS";
const GLEAN_METRIC_ID = "contentScriptInjection";
function assertHistogramSamplesCount(histogram, expectedSamplesCount, msg) {
return is(
Object.values(histogram.snapshot().values).reduce((a, b) => a + b, 0),
expectedSamplesCount,
msg
);
}
add_task(async function test_contentscript_telemetry() {
// Turn on telemetry and reset it to the previous state once the test is completed.
const telemetryCanRecordBase = SpecialPowers.Services.telemetry.canRecordBase;
SpecialPowers.Services.telemetry.canRecordBase = true;
SimpleTest.registerCleanupFunction(() => {
SpecialPowers.Services.telemetry.canRecordBase = telemetryCanRecordBase;
});
function background() {
browser.test.onMessage.addListener(() => {
browser.tabs.executeScript({code: 'browser.test.sendMessage("content-script-run");'});
});
}
let extensionData = {
manifest: {
permissions: ["<all_urls>"],
},
background,
};
let tab = await AppTestDelegate.openNewForegroundTab(
window,
"https://example.com",
true
);
let extension = ExtensionTestUtils.loadExtension(extensionData);
await Services.fog.testFlushAllChildren();
Services.fog.testResetFOG();
is(
Glean.extensionsTiming[GLEAN_METRIC_ID].testGetValue(),
null,
`No data recorded for Glean metric extensionsTiming.${GLEAN_METRIC_ID}`
);
let histogram = SpecialPowers.Services.telemetry.getHistogramById(HISTOGRAM);
histogram.clear();
assertHistogramSamplesCount(
histogram,
0,
`No data recorded for histogram: ${HISTOGRAM}.`
);
await extension.startup();
assertHistogramSamplesCount(
histogram,
0,
`No data recorded for histogram: ${HISTOGRAM}.`
);
await Services.fog.testFlushAllChildren();
is(
Glean.extensionsTiming[GLEAN_METRIC_ID].testGetValue(),
null,
`No data recorded for Glean metric extensionsTiming.${GLEAN_METRIC_ID}`
);
extension.sendMessage();
await extension.awaitMessage("content-script-run");
await Services.fog.testFlushAllChildren();
ok(
Glean.extensionsTiming[GLEAN_METRIC_ID].testGetValue()?.sum > 0,
`Data recorded for first extension on Glean metric extensionsTiming.${GLEAN_METRIC_ID}`
);
// Asserting the number of samples is the expected one (the histogram sum value
// is intermittently set to 0 due to a sample being intermittently recorded for
// the bucket 0 and would trigger an intermittent failure, see Bug 1864213).
assertHistogramSamplesCount(
histogram,
1,
`Data recorded for first extension for histogram: ${HISTOGRAM}.`
);
await AppTestDelegate.removeTab(window, tab);
await extension.unload();
});
</script>
</body>
</html>
|
