@aws-cdk-testing/cli-integ/lib/with-timeout.js

Integration tests for the AWS CDK CLI

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.withTimeout = withTimeout;
/**
 * Run a block with a timeout
 *
 * We can't use the jest timeout feature:
 *
 * - `jest.concurrent()` does not do any concurrency management. It starts all
 *   tests at the same time.
 * - Our tests use locking to make sure only one test is running at a time per
 *   region.
 *
 * The wait time for the locks is included in the jest test timeout. We therefore
 * need to set it unreasonably high (as long as the last test may need to wait
 * if all tests are executed using only 1 region, and they effectively execute
 * sequentially), which makes it not useful to detect stuck tests.
 *
 * The `withTimeout()` modifier makes it possible to measure only a specific
 * block of code. In our case: the effective test code, excluding the wait time.
 */
function withTimeout(seconds, block) {
    return (x) => {
        const timeOut = new Promise((_ok, ko) => {
            const timerHandle = setTimeout(() => ko(new Error(`Timeout: test took more than ${seconds}s to complete`)), seconds * 1000);
            timerHandle.unref();
        });
        return Promise.race([
            block(x),
            timeOut,
        ]);
    };
}
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