avajs/ava

Support running a test function multiple times with different data

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#2,980 opened on Feb 26, 2022

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enhancementhelp wantedscope:test-interface

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Description

You can already do this with macros, but it's a bit verbose and complicated. It would be nice to simplify the common case of just running the same test over an array of fixtures.

Possible API:

test('validate email', t => {
	console.log(t.data);
	t.true(isString(t.data));
})
.data([
	'foo',
	'bar'
]);
//=> 'foo'
//=> 'bar'

Contributor guide

Research direction
Examine the existing macro implementation in AVA and design a new `.data()` method that allows passing an array of fixtures to automatically run the test multiple times. Look into how the current test registration works and how macros are registered to implement a similar pattern.
Tech stack
javascriptnodejs
Domain
testing
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Node.jsAVA
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65