node/test/parallel/test-assert-calltracker-verify.js
ConorDavenport 50d28d4b3a assert: port common.mustCall() to assert
Fixes: https://github.com/nodejs/node/issues/31392

PR-URL: https://github.com/nodejs/node/pull/31982
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Zeyu Yang <himself65@outlook.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Denys Otrishko <shishugi@gmail.com>
2020-04-23 10:11:47 -07:00

33 lines
683 B
JavaScript

'use strict';
require('../common');
const assert = require('assert');
// This test ensures that assert.CallTracker.verify() works as intended.
const tracker = new assert.CallTracker();
const msg = 'Function(s) were not called the expected number of times';
function foo() {}
const callsfoo = tracker.calls(foo, 1);
// Expects an error as callsfoo() was called less than one time.
assert.throws(
() => tracker.verify(),
{ message: msg }
);
callsfoo();
// Will throw an error if callsfoo() isn't called exactly once.
tracker.verify();
callsfoo();
// Expects an error as callsfoo() was called more than once.
assert.throws(
() => tracker.verify(),
{ message: msg }
);