node/test/parallel/test-runner-snapshot-file-t...

83 lines
2.5 KiB
JavaScript

'use strict';
const common = require('../common');
const fixtures = require('../common/fixtures');
const tmpdir = require('../common/tmpdir');
const { suite, test } = require('node:test');
tmpdir.refresh();
suite('t.assert.fileSnapshot() validation', () => {
test('path must be a string', (t) => {
t.assert.throws(() => {
t.assert.fileSnapshot({}, 5);
}, /The "path" argument must be of type string/);
});
test('options must be an object', (t) => {
t.assert.throws(() => {
t.assert.fileSnapshot({}, '', null);
}, /The "options" argument must be of type object/);
});
test('options.serializers must be an array if present', (t) => {
t.assert.throws(() => {
t.assert.fileSnapshot({}, '', { serializers: 5 });
}, /The "options\.serializers" property must be an instance of Array/);
});
test('options.serializers must only contain functions', (t) => {
t.assert.throws(() => {
t.assert.fileSnapshot({}, '', { serializers: [() => {}, ''] });
}, /The "options\.serializers\[1\]" property must be of type function/);
});
});
suite('t.assert.fileSnapshot() update/read flow', () => {
const fixture = fixtures.path(
'test-runner', 'snapshots', 'file-snapshots.js'
);
test('fails prior to snapshot generation', async (t) => {
const child = await common.spawnPromisified(
process.execPath,
[fixture],
{ cwd: tmpdir.path },
);
t.assert.strictEqual(child.code, 1);
t.assert.strictEqual(child.signal, null);
t.assert.match(child.stdout, /tests 3/);
t.assert.match(child.stdout, /pass 0/);
t.assert.match(child.stdout, /fail 3/);
t.assert.match(child.stdout, /Missing snapshots can be generated/);
});
test('passes when regenerating snapshots', async (t) => {
const child = await common.spawnPromisified(
process.execPath,
['--test-update-snapshots', fixture],
{ cwd: tmpdir.path },
);
t.assert.strictEqual(child.code, 0);
t.assert.strictEqual(child.signal, null);
t.assert.match(child.stdout, /tests 3/);
t.assert.match(child.stdout, /pass 3/);
t.assert.match(child.stdout, /fail 0/);
});
test('passes when snapshots exist', async (t) => {
const child = await common.spawnPromisified(
process.execPath,
[fixture],
{ cwd: tmpdir.path },
);
t.assert.strictEqual(child.code, 0);
t.assert.strictEqual(child.signal, null);
t.assert.match(child.stdout, /tests 3/);
t.assert.match(child.stdout, /pass 3/);
t.assert.match(child.stdout, /fail 0/);
});
});