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feat!: clear mocks by default before each test - #10613
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sheremet-va merged 4 commits intoJun 30, 2026
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sheremet-va
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June 18, 2026 10:19
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sheremet-va
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June 29, 2026 10:23
AriPerkkio
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Jun 30, 2026
hi-ogawa
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Jun 30, 2026
| ```ts | ||
| import { expect, test, vi } from 'vitest' | ||
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|
||
| const fn = vi.fn() |
Collaborator
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Just to confirm my understanding, does the example works same with vi.fn() from factory mock?
import { fn } from "some-lib"
vi.mock("some-lib", () => {
return { fn: vi.fn() }
})Also what about the if it is automock?
import { fn } from "some-lib"
vi.mock("some-lib")
Member
Author
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As long as they are created outside the test body, it works the same way. In your case the function is not called anywhere so it doesn't matter. If it was called in the factory, then its state would be empty in the first test
Collaborator
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I meant when the continuation is same as the example here i.e.
import { fn } from "some-lib"
vi.mock("some-lib", () => {
return { fn: vi.fn() }
})
test('first', () => {
fn()
expect(fn).toHaveBeenCalledTimes(1)
})
test('second', () => {
fn()
// v4: the call from "first" was kept, so this was 2 // [!code --]
// expect(fn).toHaveBeenCalledTimes(2) // [!code --]
// v5: history is cleared before each test, so only this test's call counts // [!code ++]
expect(fn).toHaveBeenCalledTimes(1) // [!code ++]
})import { fn } from "some-lib"
vi.mock("some-lib"); // assuming this exports `fn`
test('first', () => {
fn()
expect(fn).toHaveBeenCalledTimes(1)
})
test('second', () => {
fn()
// v4: the call from "first" was kept, so this was 2 // [!code --]
// expect(fn).toHaveBeenCalledTimes(2) // [!code --]
// v5: history is cleared before each test, so only this test's call counts // [!code ++]
expect(fn).toHaveBeenCalledTimes(1) // [!code ++]
})Are these pass?
hi-ogawa
approved these changes
Jun 30, 2026
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Description
See #9664 (comment)
Please don't delete this checklist! Before submitting the PR, please make sure you do the following:
pnpm-lock.yamlunless you introduce a new test example.Tests
pnpm test:ci.Documentation
pnpm run docscommand.Changesets
feat:,fix:,perf:,docs:, orchore:.