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Test Info: Warnings
- This test runs only with pattern: !socketprocess_networking
- Manifest: netwerk/test/unit/xpcshell.toml
"use strict";
/* import-globals-from trr_common.js */
/* import-globals-from head_trr.js */
let trrServer;
add_setup(async function setup() {
trr_test_setup();
Services.dns.clearCache(true);
Services.prefs.setBoolPref("network.trr.preserve_on_background", true);
trrServer = new TRRServer();
registerCleanupFunction(async () => {
await trrServer.stop();
});
await trrServer.start();
dump(`port = ${trrServer.port()}\n`);
Services.prefs.setCharPref(
"network.trr.uri",
);
Services.prefs.setIntPref("network.trr.mode", Ci.nsIDNSService.MODE_TRRONLY);
for (const [domain, ip] of [
["before.example.com", "1.2.3.4"],
["after.example.com", "1.2.3.5"],
]) {
await trrServer.registerDoHAnswers(domain, "A", {
answers: [{ name: domain, ttl: 55, type: "A", flush: false, data: ip }],
});
}
});
// Verify that TRR connections survive the application-background cleanup that
// Android uses to conserve power when Firefox goes to the background.
add_task(async function test_trr_connection_survives_background() {
// Warm up the TRR connection.
await new TRRDNSListener("before.example.com", "1.2.3.4");
// Simulate the Android application-background event. This posts a cleanup
// message to the socket thread that closes persistent connections for all
// non-TRR entries.
Services.obs.notifyObservers(null, "application-background");
// This lookup must reuse the same TRR connection (same TCP port).
await new TRRDNSListener("after.example.com", "1.2.3.5");
let portLog = await trrServer.execute("global.gDoHPortsLog");
info(`Port log: ${JSON.stringify(portLog)}`);
// Collect the client ports seen for each domain. A and AAAA queries may
// open separate TCP connections, so we get a set of ports per domain.
const portsFor = domain =>
new Set(portLog.filter(([d]) => d === domain).map(([, p]) => p));
const beforePorts = portsFor("before.example.com");
const afterPorts = portsFor("after.example.com");
Assert.greater(beforePorts.size, 0, "before.example.com lookup was logged");
Assert.greater(afterPorts.size, 0, "after.example.com lookup was logged");
// At least one port must be shared, confirming the TRR connection was not
// torn down by the background cleanup.
const reused = [...afterPorts].some(p => beforePorts.has(p));
Assert.ok(
reused,
`TRR connection reused after application-background (before=${[...beforePorts]}, after=${[...afterPorts]})`
);
});