Gro integrates Vitest for tests:
gro test # run all tests with Gro's default `.test.` pattern
gro test thing.test somedir test/a.b # run tests matching patternsRunning
gro test [...args]calls Vitest inside Gro's normal task context. Vitest has native TypeScript support and excellent performance.
Like other tasks, use --help to see the args info:
gro test --helpoutputs:
gro test: run tests with vitest
[...args] Array<string> ['.test.'] file patterns to filter tests
dir string '/path/to/project/src/' working directory for tests
fail_without_tests boolean false opt out of `passWithNoTests`
t string | undefined undefined search pattern for test names, same as vitest -t and --testNamePattern
gro test runs all *.test.ts
files in your project by default using the pattern ".test.".
So to add a new test, create a new file:
// by convention, create `src/lib/thing.ts`
// to test `src/lib/thing.test.ts`
import {test, expect} from 'vitest';
import {thing} from './thing.ts';
test('the thing', async () => {
expect(thing).toEqual({expected: true});
});See the Vitest docs for more.