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vitest/consistent-test-it Style

🛠️ An auto-fix is available for this rule.

What it does

Vitest allows you to choose how you want to define your tests, using the it or the test keywords, with multiple permutations for each:

• it: it, it.only, it.skip, it.concurrent, it.each.
• test: test, test.only, test.skip, test.concurrent, test.each.

Why is this bad?

It's a good practice to be consistent in your test suite, so that all tests are written in the same way.

Configuration

This rule accepts a configuration object with the following properties:

fn

type: "it" | "test"

default: "test"

Decides whether to use test or it.

Examples of incorrect code for { "fn": "test" }:

it("foo");
it.only("foo");

Examples of correct code for { "fn": "test" }:

test("foo");
test.only("foo");

Examples of incorrect code for { "fn": "it" }:

test("foo");
test.only("foo");

Examples of correct code for { "fn": "it" }:

it("foo");
it.only("foo");

withinDescribe

type: "it" | "test"

default: "it"

Decides whether to use test or it within a describe scope. If only fn is provided, this will default to the value of fn.

Examples of incorrect code for { "withinDescribe": "test" }:

describe("foo", function () {
  it("bar");
});

Examples of correct code for { "withinDescribe": "test" }:

describe("foo", function () {
  test("bar");
});

How to use

To enable this rule using the config file or in the CLI, you can use:

Config (.oxlintrc.json)

{
  "plugins": ["vitest"],
  "rules": {
    "vitest/consistent-test-it": "error"
  }
}

Config (oxlint.config.ts)

import { defineConfig } from "oxlint";

export default defineConfig({
  plugins: ["vitest"],
  rules: {
    "vitest/consistent-test-it": "error",
  },
});

CLI

oxlint --deny vitest/consistent-test-it --vitest-plugin

Version

This rule was added in v0.5.3.

References

• Rule Source
• Open rule in Oxc Playground