browser_console_to_mozlog.js (2382B)
1 /* This Source Code Form is subject to the terms of the Mozilla Public 2 * License, v. 2.0. If a copy of the MPL was not distributed with this 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. 4 */ 5 6 /* Use console API to log via MOZ_LOG to stdout/file/profiler */ 7 8 // Use background task in order to control MOZ_LOG env variable passed to another gecko run 9 const { BackgroundTasksTestUtils } = ChromeUtils.importESModule( 10 "resource://testing-common/BackgroundTasksTestUtils.sys.mjs" 11 ); 12 BackgroundTasksTestUtils.init(this); 13 const do_backgroundtask = BackgroundTasksTestUtils.do_backgroundtask.bind( 14 BackgroundTasksTestUtils 15 ); 16 17 add_task(async function test_console_to_mozlog() { 18 const lines = []; 19 const promise = do_backgroundtask("console", { 20 onStdoutLine: (line, _proc) => { 21 lines.push(line); 22 }, 23 extraEnv: { 24 MOZ_LOG: "console:5,my-prefix:2,PageMessages:5", 25 }, 26 }); 27 const exitCode = await promise; 28 is(exitCode, 0); 29 30 const pidLine = lines.find(line => line.includes("CONSOLE-PID")); 31 ok(pidLine, "Found the line where the parent process PID is logged"); 32 const [, pid] = pidLine.split(":"); 33 ok(pid, "Got the pid out of the PID line"); 34 35 // Each MOZ_LOG / console api call starts with a description of the process and thread where it is logged 36 const threadPrefix = `[Parent ${pid}: Main Thread]: `; 37 38 const expectedLogs = [ 39 // MOZ_LOG=console:5 40 `I/console log: "foo"`, 41 `D/console debug: "bar"`, 42 43 // MOZ_LOG=my-prefix:2 44 // Bug 1923985: For now, the console API level isn't synchronized with MOZ_LOG one. 45 // shouldLogLog should be false because of my-prefix set to level 2. 46 `E/my-prefix error: ({shouldLogError:true, shouldLogLog:true})`, 47 `W/my-prefix warn: "warning"`, 48 49 // MOZ_LOG=PageMessages:5 50 `I/PageMessages String message`, 51 `E/PageMessages [JavaScript Error: "Error: Async exception" {file: "resource://testing-common/backgroundtasks/BackgroundTask_console.sys.mjs" line: 28}]`, 52 ]; 53 54 for (const expected of expectedLogs) { 55 ok( 56 lines.some(line => line.includes(`${threadPrefix}${expected}`)), 57 `Found ${expected}` 58 ); 59 } 60 61 // The console.log call with my-prefix isn't logged because of log level set to "2" for my-prefix 62 ok( 63 !lines.some(line => line.includes("not-logged")), 64 "Logs blocked by too verbose level aren't visible in stdout" 65 ); 66 });