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'use strict';
const {
ArrayPrototypePush,
ObjectGetOwnPropertyDescriptor,
SafePromiseAllReturnArrayLike,
RegExp,
RegExpPrototypeExec,
SafeMap,
} = primordials;
const { basename } = require('path');
const { createWriteStream } = require('fs');
const { pathToFileURL } = require('internal/url');
const { createDeferredPromise } = require('internal/util');
const { getOptionValue } = require('internal/options');
const {
codes: {
ERR_INVALID_ARG_VALUE,
ERR_TEST_FAILURE,
},
kIsNodeError,
} = require('internal/errors');
const { compose } = require('stream');
const kMultipleCallbackInvocations = 'multipleCallbackInvocations';
const kRegExpPattern = /^\/(.*)\/([a-z]*)$/;
const kSupportedFileExtensions = /\.[cm]?js$/;
const kTestFilePattern = /((^test(-.+)?)|(.+[.\-_]test))\.[cm]?js$/;
function doesPathMatchFilter(p) {
return RegExpPrototypeExec(kTestFilePattern, basename(p)) !== null;
}
function isSupportedFileType(p) {
return RegExpPrototypeExec(kSupportedFileExtensions, p) !== null;
}
function createDeferredCallback() {
let calledCount = 0;
const { promise, resolve, reject } = createDeferredPromise();
const cb = (err) => {
calledCount++;
// If the callback is called a second time, let the user know, but
// don't let them know more than once.
if (calledCount > 1) {
if (calledCount === 2) {
throw new ERR_TEST_FAILURE(
'callback invoked multiple times',
kMultipleCallbackInvocations
);
}
return;
}
if (err) {
return reject(err);
}
resolve();
};
return { promise, cb };
}
function isTestFailureError(err) {
return err?.code === 'ERR_TEST_FAILURE' && kIsNodeError in err;
}
function convertStringToRegExp(str, name) {
const match = RegExpPrototypeExec(kRegExpPattern, str);
const pattern = match?.[1] ?? str;
const flags = match?.[2] || '';
try {
return new RegExp(pattern, flags);
} catch (err) {
const msg = err?.message;
throw new ERR_INVALID_ARG_VALUE(
name,
str,
`is an invalid regular expression.${msg ? ` ${msg}` : ''}`
);
}
}
const kBuiltinDestinations = new SafeMap([
['stdout', process.stdout],
['stderr', process.stderr],
]);
const kBuiltinReporters = new SafeMap([
['spec', 'internal/test_runner/reporter/spec'],
['dot', 'internal/test_runner/reporter/dot'],
['tap', 'internal/test_runner/reporter/tap'],
]);
const kDefaultReporter = 'tap';
const kDefaultDestination = 'stdout';
function tryBuiltinReporter(name) {
const builtinPath = kBuiltinReporters.get(name);
if (builtinPath === undefined) {
return;
}
return require(builtinPath);
}
async function getReportersMap(reporters, destinations) {
return SafePromiseAllReturnArrayLike(reporters, async (name, i) => {
const destination = kBuiltinDestinations.get(destinations[i]) ?? createWriteStream(destinations[i]);
// Load the test reporter passed to --test-reporter
let reporter = tryBuiltinReporter(name);
if (reporter === undefined) {
let parentURL;
try {
parentURL = pathToFileURL(process.cwd() + '/').href;
} catch {
parentURL = 'file:///';
}
const { esmLoader } = require('internal/process/esm_loader');
reporter = await esmLoader.import(name, parentURL, { __proto__: null });
}
if (reporter?.default) {
reporter = reporter.default;
}
if (reporter?.prototype && ObjectGetOwnPropertyDescriptor(reporter.prototype, 'constructor')) {
reporter = new reporter();
}
if (!reporter) {
throw new ERR_INVALID_ARG_VALUE('Reporter', name, 'is not a valid reporter');
}
return { __proto__: null, reporter, destination };
});
}
async function setupTestReporters(testsStream) {
const destinations = getOptionValue('--test-reporter-destination');
const reporters = getOptionValue('--test-reporter');
if (reporters.length === 0 && destinations.length === 0) {
ArrayPrototypePush(reporters, kDefaultReporter);
}
if (reporters.length === 1 && destinations.length === 0) {
ArrayPrototypePush(destinations, kDefaultDestination);
}
if (destinations.length !== reporters.length) {
throw new ERR_INVALID_ARG_VALUE('--test-reporter', reporters,
'must match the number of specified \'--test-reporter-destination\'');
}
const reportersMap = await getReportersMap(reporters, destinations);
for (let i = 0; i < reportersMap.length; i++) {
const { reporter, destination } = reportersMap[i];
compose(testsStream, reporter).pipe(destination);
}
}
module.exports = {
convertStringToRegExp,
createDeferredCallback,
doesPathMatchFilter,
isSupportedFileType,
isTestFailureError,
setupTestReporters,
};
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