65 lines
1.2 KiB
JavaScript
65 lines
1.2 KiB
JavaScript
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'use strict';
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class Concurrent {
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constructor(runnables, bail) {
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if (!Array.isArray(runnables)) {
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throw new TypeError('Expected an array of runnables');
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}
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this.runnables = runnables;
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this.bail = bail || false;
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}
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run() {
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let allPassed = true;
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let pending;
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let rejectPending;
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let resolvePending;
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const allPromises = [];
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const handlePromise = promise => {
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if (!pending) {
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pending = new Promise((resolve, reject) => {
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rejectPending = reject;
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resolvePending = resolve;
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});
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}
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allPromises.push(promise.then(passed => {
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if (!passed) {
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allPassed = false;
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if (this.bail) {
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// Stop if the test failed and bail mode is on.
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resolvePending();
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}
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}
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}, rejectPending));
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};
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for (const runnable of this.runnables) {
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const passedOrPromise = runnable.run();
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if (!passedOrPromise) {
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if (this.bail) {
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// Stop if the test failed and bail mode is on.
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return false;
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}
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allPassed = false;
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} else if (passedOrPromise !== true) {
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handlePromise(passedOrPromise);
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}
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}
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if (pending) {
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Promise.all(allPromises).then(resolvePending);
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return pending.then(() => allPassed);
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}
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return allPassed;
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}
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}
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module.exports = Concurrent;
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