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run-tests.js
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run-tests.js
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const fs = require('fs-extra');
const path = require('path');
const rimraf = require('rimraf');
const typescript = require('typescript');
const semver = require('semver');
const execSync = require('child_process').execSync;
const getProgram = require('./getProgram');
// We only want to run comparison tests for the latest released version
const typescriptVersion = parseFloat(
semver.major(typescript.version) + '.' + semver.minor(typescript.version)
);
// @ts-ignore
if (typescriptVersion < 3.9 || typescriptVersion > 3.9) return;
// Build
const program = getProgram(path.resolve(__dirname, 'tsconfig.json'));
const diagnostics = typescript.getPreEmitDiagnostics(program);
if (diagnostics.length) {
const formatDiagnosticHost = {
getCurrentDirectory: typescript.sys.getCurrentDirectory,
getCanonicalFileName: typescript.sys.useCaseSensitiveFileNames
? s => s
: s => s.toLowerCase(),
getNewLine: () => typescript.sys.newLine
};
for (const d of diagnostics) {
typescript.sys.write(typescript.formatDiagnostic(d, formatDiagnosticHost));
}
throw new Error('Errors in the tests');
}
// Parse command line arguments
const saveOutputMode = process.argv.indexOf('--save-output') !== -1;
const indexOfSingleTest = process.argv.indexOf('--single-test');
const singleTestToRun =
indexOfSingleTest !== -1 && process.argv[indexOfSingleTest + 1];
const indexOfStartAtTestName = process.argv.indexOf('--start-at');
const startAtTestName =
indexOfStartAtTestName !== -1 && process.argv[indexOfStartAtTestName + 1];
const indexOfTestCriteria = process.argv.indexOf('--match-test');
const testCriteria =
indexOfTestCriteria !== -1 &&
new RegExp(process.argv[indexOfTestCriteria + 1]);
/** @type {string[]} */
let passingTests = [];
/** @type {string[]} */
let failingTests = [];
// set up new empty staging area
const stagingPath = path.resolve(__dirname, '../../.test');
rimraf.sync(stagingPath);
runTests();
// --------------------------------------------------------------
function runTests() {
const start = new Date().getTime();
console.log(
'\n-------------------------------------------------------------------------\n'
);
console.log('Starting to run test suites...\n');
const testDir = __dirname;
if (singleTestToRun) {
if (runTestAsChildProcess(getTestNameFromPath(singleTestToRun))) {
passingTests.push(singleTestToRun);
} else {
failingTests.push(singleTestToRun);
}
} else {
// loop through each test directory triggering a test run as child process
/** @type {string[]} */
const availableTests = fs
.readdirSync(testDir)
.filter(
/**
* @param {string} testName
*/ testName => {
if (startAtTestName && testName < startAtTestName) {
return false;
}
const testPath = path.join(testDir, testName);
const isATest = fs.statSync(testPath).isDirectory();
return isATest;
}
)
.filter(
/**
* @param {string} testName
*/ testName => (testCriteria ? !!testName.match(testCriteria) : true)
);
// Allow multiple attempts to pass tests as they're flaky
let attempt = 0;
while (++attempt <= 40 && passingTests.length < availableTests.length) {
if (attempt > 1) {
console.log(`Some tests failed; re-running (attempt ${attempt})`);
}
availableTests
.filter(testName => !passingTests.includes(testName))
.forEach(testName => {
if (runTestAsChildProcess(testName)) {
passingTests.push(testName);
}
});
}
failingTests = availableTests.filter(
testName => !passingTests.includes(testName)
);
}
const end = new Date().getTime();
console.log(
'\n-------------------------------------------------------------------------\n'
);
const totalTests = passingTests.length + failingTests.length;
console.log(
`${totalTests} test suites took ${(end - start) / 1000} seconds to run.\n`
);
if (passingTests.length > 0) {
console.log(
`${passingTests.length} test suite(s) passed.\n\n - ${passingTests.join(
'\n - '
)}\n`
);
}
if (failingTests.length > 0) {
console.log(
`${failingTests.length} test suite(s) failed.\n\n - ${failingTests.join(
'\n - '
)}\n`
);
process.exit(1);
} else {
console.log('No tests failed; congratulations!');
}
}
/** @param {string} testNameOrPath */
function getTestNameFromPath(testNameOrPath) {
var tsLoaderPath = path.resolve(__dirname, '../..');
var tsLoaderBasename = path.basename(tsLoaderPath);
var comparisonTestsRelativeRoot = path.relative(tsLoaderPath, __dirname);
var comparisonTestsAbsoluteRoot = path.join(
tsLoaderPath,
comparisonTestsRelativeRoot
);
// It wasn’t a path in comparison-tests; assume it was a test name
if (
testNameOrPath.indexOf(
path.join(tsLoaderBasename, comparisonTestsRelativeRoot)
) === -1
) {
return testNameOrPath;
}
// E.g. projectReferences/lib/index.ts
var testPathRelativeToComparisonTests = path.relative(
comparisonTestsAbsoluteRoot,
testNameOrPath
);
return testPathRelativeToComparisonTests.split(path.sep)[0];
}
/**
* Run test isolated in a child process
*
* @param {string} testName
*/
function runTestAsChildProcess(testName) {
const testToRun = ' --test-to-run ' + testName;
const debug = process.argv.indexOf('--debug') > -1;
const testCommand =
'mocha -c --reporter spec ' +
(debug ? '--inspect-brk=5858 ' : '') +
'test/comparison-tests/create-and-execute-test.js ' +
testToRun;
try {
const _testOutput = execSync(
testCommand + (saveOutputMode ? ' --save-output' : ''),
{ stdio: 'inherit' }
);
/* No longer necessary and experimentalFileCaching is enabled by default - approach may prove useful in future though
if (!saveOutputMode) {
const _testOutput2 = execSync(
testCommand + ' --extra-option experimentalFileCaching',
{ stdio: 'inherit' }
);
}
*/
return true;
} catch (err) {
return false;
}
}