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Test Info:
- Manifest: dom/console/tests/browser.toml
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
*/
/* Use console API to log via MOZ_LOG to stdout/file/profiler */
// Use background task in order to control MOZ_LOG env variable passed to another gecko run
const { BackgroundTasksTestUtils } = ChromeUtils.importESModule(
);
BackgroundTasksTestUtils.init(this);
const do_backgroundtask = BackgroundTasksTestUtils.do_backgroundtask.bind(
BackgroundTasksTestUtils
);
add_task(async function test_console_to_mozlog() {
const lines = [];
const promise = do_backgroundtask("console", {
onStdoutLine: (line, _proc) => {
dump(`STDOUT: ${line}`);
lines.push(line);
},
extraEnv: {
MOZ_LOG: "console:5,my-prefix:2",
},
});
const exitCode = await promise;
is(exitCode, 0);
const pidLine = lines.find(line => line.includes("CONSOLE-PID"));
ok(pidLine, "Found the line where the parent process PID is logged");
const [, pid] = pidLine.split(":");
ok(pid, "Got the pid out of the PID line");
// Each MOZ_LOG / console api call starts with a description of the process and thread where it is logged
const threadPrefix = `[Parent ${pid}: Main Thread]: `;
const expectedLogs = [
`I/console log: "foo"`,
`D/console debug: "bar"`,
// shouldLogLog should be false because of my-prefix set to level 2.
`E/my-prefix error: ({shouldLogError:true, shouldLogLog:true})`,
`W/my-prefix warn: "warning"`,
];
for (const expected of expectedLogs) {
ok(
lines.some(line => line.includes(`${threadPrefix}${expected}`)),
`Found ${expected}`
);
}
// The console.log call with my-prefix isn't logged because of log level set to "2" for my-prefix
ok(
!lines.some(line => line.includes("not-logged")),
"Logs blocked by too verbose level aren't visible in stdout"
);
});