qunit-retry

import setup from "qunit-retry"; import QUnit from "qunit"; // QUnit is expected to be installed and configured // Simulate an occasionally failing asynchronous service let internalAttemptCount = 0; async function occasionallyFailingServiceTestResult() { internalAttemptCount++; // Simulate failure on the first attempt only if (internalAttemptCount <= 1) { console.log(`Service attempt ${internalAttemptCount}: Simulating failure.`); throw new Error("Simulated transient service error."); } console.log(`Service attempt ${internalAttemptCount}: Succeeding.`); return 42; } // Configure qunit-retry with QUnit's test function // The 'retry' function replaces QUnit.test, adding retry logic const retry = setup(QUnit.test, { // Global maxRuns: allow 1 initial attempt + 2 retries maxRuns: 3, beforeRetry: (details) => { // Reset any state needed for the test to run clean again console.log(`Retrying test "${details.name}" (attempt ${details.runNumber}/${details.maxRuns})...`); internalAttemptCount = 0; // Reset our mock service's internal state } }); // Define a test that uses the 'retry' function retry("a test relying on 3rd party service that occasionally fails", async function(assert) { assert.expect(1); // Indicate one assertion is expected const result = await occasionallyFailingServiceTestResult(); assert.equal(result, 42, "The service should eventually return 42 after retries."); }); // Example of a test that should pass without retries retry("a stable test", async function(assert) { assert.expect(1); const result = 42; // Directly successful assert.equal(result, 42, "This stable test should pass immediately."); });