node/test/parallel/test-assert-checktag.js
Giovanni Bucci 4d6d7d644b
assert: make assertion_error use Myers diff algorithm
Fixes: https://github.com/nodejs/node/issues/51733

Co-Authored-By: Pietro Marchini <pietro.marchini94@gmail.com>
PR-URL: https://github.com/nodejs/node/pull/54862
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
2024-10-17 16:02:54 +00:00

75 lines
2.3 KiB
JavaScript

'use strict';
const { hasCrypto } = require('../common');
const { test } = require('node:test');
const assert = require('assert');
// Turn off no-restricted-properties because we are testing deepEqual!
/* eslint-disable no-restricted-properties */
// Disable colored output to prevent color codes from breaking assertion
// message comparisons. This should only be an issue when process.stdout
// is a TTY.
if (process.stdout.isTTY)
process.env.NODE_DISABLE_COLORS = '1';
test('', { skip: !hasCrypto }, () => {
// See https://github.com/nodejs/node/issues/10258
{
const date = new Date('2016');
function FakeDate() {}
FakeDate.prototype = Date.prototype;
const fake = new FakeDate();
assert.notDeepEqual(date, fake);
assert.notDeepEqual(fake, date);
// For deepStrictEqual we check the runtime type,
// then reveal the fakeness of the fake date
assert.throws(
() => assert.deepStrictEqual(date, fake),
{
message: 'Expected values to be strictly deep-equal:\n' +
'+ actual - expected\n' +
'\n' +
'+ 2016-01-01T00:00:00.000Z\n' +
'- Date {}\n'
}
);
assert.throws(
() => assert.deepStrictEqual(fake, date),
{
message: 'Expected values to be strictly deep-equal:\n' +
'+ actual - expected\n' +
'\n' +
'+ Date {}\n' +
'- 2016-01-01T00:00:00.000Z\n'
}
);
}
{ // At the moment global has its own type tag
const fakeGlobal = {};
Object.setPrototypeOf(fakeGlobal, Object.getPrototypeOf(global));
for (const prop of Object.keys(global)) {
fakeGlobal[prop] = global[prop];
}
assert.notDeepEqual(fakeGlobal, global);
// Message will be truncated anyway, don't validate
assert.throws(() => assert.deepStrictEqual(fakeGlobal, global),
assert.AssertionError);
}
{ // At the moment process has its own type tag
const fakeProcess = {};
Object.setPrototypeOf(fakeProcess, Object.getPrototypeOf(process));
for (const prop of Object.keys(process)) {
fakeProcess[prop] = process[prop];
}
assert.notDeepEqual(fakeProcess, process);
// Message will be truncated anyway, don't validate
assert.throws(() => assert.deepStrictEqual(fakeProcess, process),
assert.AssertionError);
}
});
/* eslint-enable */