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hermes.js
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hermes.js
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/*
* Node.js test runner for running data-*.js tests with Hermes 'hermes' command.
*
* Reports discrepancies to console; fix them manually in data-*.js files.
* Expects 'hermes' to be already built. Example:
*
* $ node hermes.js --hermes-bin /path/to/hermes --suite suitename
*
* suitename can be 'all'
*/
var fs = require('fs');
var child_process = require('child_process');
var console = require('console');
var argv = require('yargs/yargs')(process.argv.slice(2))
.option('hermes-bin', {
alias: 'b',
type: 'string'
})
.option('suite', {
alias: 's',
type: 'string',
choices: ['all', 'es5', 'es6', 'es2016plus'],
default: 'all'
})
.option('test-name', {
alias: 't',
type: 'string'
})
// .option('promise', {
// type: 'boolean'
// })
.option('symbol', {
type: 'boolean'
})
.option('proxy', {
type: 'boolean'
})
.option('bail', {
type: 'boolean',
describe: 'Bail of first outdated test'
})
.argv;
var testCount = 0;
var testSuccess = 0;
var testFailure = 0;
var testOutOfDate = 0;
var hermesCommand = argv.hermesBin;
var suites = argv.suite;
suites = suites === 'all' ? '' : suites;
var testName = argv.testName;
var environments = JSON.parse(fs.readFileSync('environments.json').toString());
// Key for .res (e.g. test.res.hermes0_7_0), automatic based on `hermes -version`.
var hermesKey = (function () {
var stdout = child_process.execFileSync(hermesCommand, [ '-version' ], {
encoding: 'utf-8'
});
var m = /Hermes release version:\s+(\d)\.(\d)(?:\.(\d))?/.exec(stdout);
if (m) {
return 'hermes' + m[1] + '_' + m[2] + (m[3] ? '_' + m[3] : '');
}
throw new Error('Invalid Hermes version');
})();
console.log('Hermes result key is: test.res.' + hermesKey);
// List of keys for inheriting results from previous versions.
var hermesKeyList = (function () {
var res = [];
for (var k in environments) {
var env = environments[k];
if (env.family !== 'Hermes') {
continue;
}
res.push(k);
if (k === hermesKey) {
// Include versions up to 'hermesKey' but not newer.
break;
}
}
return res;
})();
console.log('Hermes key list for inheriting results is:', hermesKeyList);
var createIterableHelper =
'var global = this;\n' +
'global.__createIterableObject = function (arr, methods) {\n' +
' methods = methods || {};\n' +
' if (typeof Symbol !== "function" || !Symbol.iterator)\n' +
' return {};\n' +
' arr.length++;\n' +
' var iterator = {\n' +
' next: function() {\n' +
' return { value: arr.shift(), done: arr.length <= 0 };\n' +
' },\n' +
' "return": methods["return"],\n' +
' "throw": methods["throw"]\n' +
' };\n' +
' var iterable = {};\n' +
' iterable[Symbol.iterator] = function(){ return iterator; };\n' +
' return iterable;\n' +
' };\n';
var asyncTestHelperHead =
'var asyncPassed = false;\n' +
'\n' +
'function asyncTestPassed() {\n' +
' asyncPassed = true;\n' +
'}\n' +
'\n' +
'function setTimeout(cb, time, cbarg) {\n' +
' if (!jobqueue[time]) {\n' +
' jobqueue[time] = [];\n' +
' }\n' +
' jobqueue[time].push({cb, cbarg, startTime: Date.now(), timeout: time});\n' +
'}\n' +
'\n' +
'var jobqueue = [];\n';
var asyncTestHelperTail =
'const thenCb = job => {\n' +
' job.cb(job.cbarg)\n' +
'}\n' +
'\n' +
'const catchCb = job => {\n' +
' jobRunner(job);\n' +
'}\n' +
'\n' +
'function jobRunner(job){\n' +
' return new Promise((resolve, reject) => {\n' +
' let diff = Date.now() - job.startTime;\n' +
' if (diff >= job.timeout) {\n' +
' if (!job.run) {\n' +
' job.run = true;\n' +
' resolve (job);\n' +
' }\n' +
' } else {\n' +
' reject (job)\n' +
' }\n' +
' })\n' +
' .then(thenCb)\n' +
' .catch(catchCb)\n' +
'}\n' +
'\n' +
'jobqueue.forEach(function(jobs, index) {\n' +
' for (var job of jobs) {\n' +
' jobRunner(job);\n' +
' }\n' +
'});\n' +
'\n' +
'function onCloseAsyncCheck() {\n' +
' if (!asyncPassed) {\n' +
' print("Async[FAILURE]");\n' +
' throw "Async check failed";\n' +
' }\n' +
' print("[SUCCESS]");\n' +
'}\n' +
'\n' +
'Promise.resolve().then(onCloseAsyncCheck);\n';
function removeIndent(str) {
return str.split(/\n/g).map(function(s) { return s.trim(); }).filter(Boolean).join('\n');
}
function getArgs(testFilename) {
var processArgs = [
/*'-enable-eval',*/
/*'-allow-function-to-string',*/
]
.concat([testFilename])
.filter(Boolean);
// if (argv.promise) {
// processArgs.unshift('-Xes6-promise');
// }
if (argv.symbol) {
processArgs.unshift('-Xes6-symbol');
}
if (argv.proxy) {
processArgs.unshift('-Xes6-proxy');
}
// Comment this to see eval warnings
processArgs.unshift('-w');
return processArgs;
}
// Run test / subtests, recursively. Report results, indicate data files
// which are out of date.
function runTest(parents, test, sublevel) {
var testPath = parents.join(' -> ') + ' -> ' + test.name;
if (!testName || (test.name.indexOf(testName) !== -1 || parents.some(function (p) { return p.indexOf(testName) !== -1; }))) {
if (typeof test.exec === 'function') {
var src = test.exec.toString();
var m = /^function\s*\w*\s*\(.*?\)\s*\{\s*\/\*([\s\S]*?)\*\/\s*\}$/m.exec(src);
var evalcode;
var testFilename = 'hermestest.js';
var processArgs = getArgs(testFilename);
var script = '';
if (src.includes('__createIterableObject')) {
script += createIterableHelper;
} else if (src.includes('global')) {
script += 'var global = this;\n';
}
if (src.includes('asyncTestPassed')) {
script += asyncTestHelperHead + removeIndent(m[1]) + asyncTestHelperTail;
} else {
if (m) {
evalcode = 'function test() {' + removeIndent(m[1]) + '}';
} else {
evalcode = 'function test() { return (' + removeIndent(src) + ')(); }';
}
script += '' + evalcode + ';\n' +
'try {\n' +
' var res = test();\n' +
' if (!res) { throw new Error("failed: " + res); }\n' +
' print("[SUCCESS]");\n' +
'} catch (e) {\n' +
' print("[FAILURE]", e);\n' +
' /*throw e;*/\n' +
'}\n';
}
fs.writeFileSync(testFilename, script);
var success = false;
try {
var stdout = child_process.execFileSync(hermesCommand, processArgs, {
encoding: 'utf-8'
});
if (/^\[SUCCESS\]$/gm.test(stdout)) {
success = true;
testSuccess++;
} else {
// console.log(stdout);
}
} catch (e) {
// console.log(e);
}
testCount++;
if (test.res) {
// Take expected result from newest Hermes version not newer
// than current version.
var expect = void 0;
hermesKeyList.forEach(function (k) {
if (test.res[k] !== void 0) {
expect = test.res[k];
// Handling notes
if (typeof expect === 'object' && 'val' in expect) {
if (expect.val === 'flagged') {
if (expect.note_id === 'hermes-promise') {
expect = !!argv.promise;
} else if (expect.note_id === 'hermes-symbol') {
expect = !!argv.symbol;
} else if (expect.note_id === 'hermes-proxy') {
expect = !!argv.proxy;
} else {
// expect = true;
expect = expect.val;
}
} else {
expect = expect.val;
}
}
}
});
if (!success) {
testFailure++;
}
if (expect === success) {
// Matches.
} else if (expect === void 0 && !success) {
testOutOfDate++;
console.log(testPath + ': test result missing, res: ' + expect + ', actual: ' + success);
// if (testFailure >= 2) throw new Error(testCount)
} else {
testOutOfDate++;
console.log(testPath + ': test result out of date, res: ' + expect + ', actual: ' + success);
}
// if (test.name === 'repeated parameter names is a SyntaxError') {
// throw new Error('stop')
// }
} else {
testOutOfDate++;
console.log(testPath + ': test.res missing');
}
}
}
if (argv.bail && testOutOfDate > 0) {
throw new Error('stop, tests not outdated: ' + (testCount - 1));
}
if (test.subtests) {
var newParents = parents.slice(0);
newParents.push(test.name);
test.subtests.forEach(function (v) { runTest(newParents, v, sublevel + 1); });
}
}
fs.readdirSync('.').forEach(function (filename) {
var m = /^data-(.*)\.js$/.exec(filename);
if (!m) {
return;
}
var suitename = m[1];
if (suites.length != 0 && !suites.includes(suitename)) {
return;
}
console.log('');
console.log('**** ' + suitename + ' ****');
console.log('');
var testsuite = require('./data-' + suitename + '.js');
testsuite.tests.forEach(function (v) { runTest([ suitename ], v, 0); });
});
console.log(testCount + ' tests executed: ' + testSuccess + ' success, ' + (testCount - testSuccess) + ' fail');
console.log(testOutOfDate + ' tests are out of date (data-*.js file .res)');