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const URL1 = "data:text/html;charset=utf-8,<body><p>Hello1</p></body>";
const URL2 = "data:text/html;charset=utf-8,<body><p>Hello2</p></body>";
async function getBFCacheComboTelemetry(probeInParent) {
let bfcacheCombo;
await TestUtils.waitForCondition(() => {
let histograms;
if (probeInParent) {
histograms = Services.telemetry.getSnapshotForHistograms(
"main",
false /* clear */
).parent;
} else {
histograms = Services.telemetry.getSnapshotForHistograms(
"main",
false /* clear */
).content;
}
bfcacheCombo = histograms.BFCACHE_COMBO;
return bfcacheCombo;
});
return bfcacheCombo;
}
async function test_bfcache_telemetry(probeInParent) {
Services.telemetry.getHistogramById("BFCACHE_COMBO").clear();
let tab = await BrowserTestUtils.openNewForegroundTab(gBrowser, URL1);
BrowserTestUtils.startLoadingURIString(tab.linkedBrowser, URL2);
await BrowserTestUtils.browserLoaded(tab.linkedBrowser);
let bfcacheCombo = await getBFCacheComboTelemetry(probeInParent);
is(bfcacheCombo.values[0], 1, "1 bfcache success");
gBrowser.removeTab(tab);
}
add_task(async () => {
await test_bfcache_telemetry(
Services.prefs.getBoolPref("fission.bfcacheInParent")
);
});
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