SSL StructuredLog.sys.mjs
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/* 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
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/**
* TestLogger: Logger class generating messages compliant with the
* structured logging protocol for tests exposed by mozlog
*
* @param {string} name
* The name of the logger to instantiate.
* @param {function} [dumpFun]
* An underlying function to be used to log raw messages. This function
* will receive the complete serialized json string to log.
* @param {object} [scope]
* The scope that the dumpFun is loaded in, so that messages are cloned
* into that scope before passing them.
*/
export class StructuredLogger {
name = null;
#dumpFun = null;
#dumpScope = null;
constructor(name, dumpFun = dump, scope = null) {
this.name = name;
this.#dumpFun = dumpFun;
this.#dumpScope = scope;
}
testStart(test) {
var data = { test: this.#testId(test) };
this.logData("test_start", data);
}
testStatus(
test,
subtest,
status,
expected = "PASS",
message = null,
stack = null,
extra = null
) {
if (subtest === null || subtest === undefined) {
// Fix for assertions that don't pass in a name
subtest = "undefined assertion name";
}
var data = {
test: this.#testId(test),
subtest,
status,
};
// handle case: known fail
if (expected === status && status != "SKIP") {
data.status = "PASS";
}
if (expected != status && status != "SKIP") {
data.expected = expected;
}
if (message !== null) {
data.message = String(message);
}
if (stack !== null) {
data.stack = stack;
}
if (extra !== null) {
data.extra = extra;
}
this.logData("test_status", data);
}
testEnd(
test,
status,
expected = "OK",
message = null,
stack = null,
extra = null
) {
var data = { test: this.#testId(test), status };
// handle case: known fail
if (expected === status && status != "SKIP") {
data.status = "OK";
}
if (expected != status && status != "SKIP") {
data.expected = expected;
}
if (message !== null) {
data.message = String(message);
}
if (stack !== null) {
data.stack = stack;
}
if (extra !== null) {
data.extra = extra;
}
this.logData("test_end", data);
}
assertionCount(test, count, minExpected = 0, maxExpected = 0) {
var data = {
test: this.#testId(test),
min_expected: minExpected,
max_expected: maxExpected,
count,
};
this.logData("assertion_count", data);
}
suiteStart(
ids,
name = null,
runinfo = null,
versioninfo = null,
deviceinfo = null,
extra = null
) {
Object.keys(ids).map(function (manifest) {
ids[manifest] = ids[manifest].map(x => this.#testId(x));
}, this);
var data = { tests: ids };
if (name !== null) {
data.name = name;
}
if (runinfo !== null) {
data.runinfo = runinfo;
}
if (versioninfo !== null) {
data.versioninfo = versioninfo;
}
if (deviceinfo !== null) {
data.deviceinfo = deviceinfo;
}
if (extra !== null) {
data.extra = extra;
}
this.logData("suite_start", data);
}
suiteEnd(extra = null) {
var data = {};
if (extra !== null) {
data.extra = extra;
}
this.logData("suite_end", data);
}
/**
* Unstructured logging functions. The "extra" parameter can always by used to
* log suite specific data. If a "stack" field is provided it is logged at the
* top level of the data object for the benefit of mozlog's formatters.
*/
log(level, message, extra = null) {
var data = {
level,
message: String(message),
};
if (extra !== null) {
data.extra = extra;
if ("stack" in extra) {
data.stack = extra.stack;
}
}
this.logData("log", data);
}
debug(message, extra = null) {
this.log("DEBUG", message, extra);
}
info(message, extra = null) {
this.log("INFO", message, extra);
}
warning(message, extra = null) {
this.log("WARNING", message, extra);
}
error(message, extra = null) {
this.log("ERROR", message, extra);
}
critical(message, extra = null) {
this.log("CRITICAL", message, extra);
}
processOutput(thread, message) {
this.logData("process_output", {
message,
thread,
});
}
logData(action, data = {}) {
var allData = {
action,
time: Date.now(),
thread: null,
pid: null,
source: this.name,
};
for (var field in data) {
allData[field] = data[field];
}
if (this.#dumpScope) {
this.#dumpFun(Cu.cloneInto(allData, this.#dumpScope));
} else {
this.#dumpFun(allData);
}
}
#testId(test) {
if (Array.isArray(test)) {
return test.join(" ");
}
return test;
}
}
/**
* StructuredFormatter: Formatter class turning structured messages
* into human-readable messages.
*/
export class StructuredFormatter {
// The time at which the whole suite of tests started.
#suiteStartTime = null;
#testStartTimes = new Map();
log(message) {
return message.message;
}
suite_start(message) {
this.#suiteStartTime = message.time;
return "SUITE-START | Running " + message.tests.length + " tests";
}
test_start(message) {
this.#testStartTimes.set(message.test, new Date().getTime());
return "TEST-START | " + message.test;
}
test_status(message) {
var statusInfo =
message.test +
" | " +
message.subtest +
(message.message ? " | " + message.message : "");
if (message.expected) {
return (
"TEST-UNEXPECTED-" +
message.status +
" | " +
statusInfo +
" - expected: " +
message.expected
);
}
return "TEST-" + message.status + " | " + statusInfo;
}
test_end(message) {
var startTime = this.#testStartTimes.get(message.test);
this.#testStartTimes.delete(message.test);
var statusInfo =
message.test + (message.message ? " | " + String(message.message) : "");
var result;
if (message.expected) {
result =
"TEST-UNEXPECTED-" +
message.status +
" | " +
statusInfo +
" - expected: " +
message.expected;
} else {
return "TEST-" + message.status + " | " + statusInfo;
}
result = result + " | took " + message.time - startTime + "ms";
return result;
}
suite_end(message) {
return "SUITE-END | took " + message.time - this.#suiteStartTime + "ms";
}
}
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2026-03-28
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