isolated provides one-time folders for unit tests.
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$ npm install isolated
Using isolated is easy. All you need to do is to add a reference to it within your Node.js application:
const { isolated } = require('isolated');
If you use TypeScript, use the following code instead:
import { isolated } from 'isolated';
Then you can use it within your tests. In its simplest form, isolated provides a one-time folder for your test and guarantees to clean up later.
test('...', async () => {
const directory = await isolated();
});
Additionally, you may want to specify a file or a directory that isolated shall copy to the one-time directory before running your test.
test('...', async () => {
const directory = await isolated({
files: 'foo.txt'
});
});
If you need to copy multiple files or directories, specify an array instead of a single item.
test('...', async () => {
const directory = await isolated({
files: [ 'foo.txt', 'bar.txt' ]
});
});
Sometimes you may want isolate to preserve the sources' timestamps. For that additionally provide the preserveTimestamps
option and set it to true
.
test('...', async () => {
const directory = await isolated({
files: [ 'foo.txt', 'bar.txt' ],
preserveTimestamps: true
});
});
To run quality assurance for this module use roboter:
$ npx roboter