/
wait.test.ts
188 lines (165 loc) · 4.2 KB
/
wait.test.ts
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import { describe, expect, test, vi } from 'vitest'
describe('waitFor', () => {
describe('options', () => {
test('timeout', async () => {
expect(async () => {
await vi.waitFor(() => {
return new Promise((resolve) => {
setTimeout(() => {
resolve(true)
}, 100)
})
}, 50)
}).rejects.toThrow('Timed out in waitFor!')
})
test('interval', async () => {
const callback = vi.fn(() => {
throw new Error('interval error')
})
await expect(
vi.waitFor(callback, {
timeout: 60,
interval: 30,
}),
).rejects.toThrowErrorMatchingInlineSnapshot('"interval error"')
expect(callback).toHaveBeenCalledTimes(2)
})
})
test('basic', async () => {
let throwError = false
await vi.waitFor(() => {
if (!throwError) {
throwError = true
throw new Error('basic error')
}
})
expect(throwError).toBe(true)
})
test('async function', async () => {
let finished = false
setTimeout(() => {
finished = true
}, 50)
await vi.waitFor(async () => {
if (finished)
return Promise.resolve(true)
else
return Promise.reject(new Error('async function error'))
})
})
test('stacktrace correctly', async () => {
const check = () => {
const _a = 1
// @ts-expect-error test
_a += 1
}
try {
await vi.waitFor(check, 100)
}
catch (error) {
expect((error as Error).message).toMatchInlineSnapshot('"Assignment to constant variable."')
expect.soft((error as Error).stack).toMatch(/at check/)
}
})
test('stacktrace point to waitFor', async () => {
const check = async () => {
return new Promise((resolve) => {
setTimeout(resolve, 60)
})
}
try {
await vi.waitFor(check, 50)
}
catch (error) {
expect(error).toMatchInlineSnapshot('[Error: Timed out in waitFor!]')
expect((error as Error).stack?.split('\n')[1]).toMatch(/waitFor\s*\(.*\)?/)
}
})
test('fakeTimer works', async () => {
vi.useFakeTimers()
setTimeout(() => {
vi.advanceTimersByTime(200)
}, 50)
await vi.waitFor(() => {
return new Promise<void>((resolve) => {
setTimeout(() => {
resolve()
}, 150)
})
}, 200)
vi.useRealTimers()
})
})
describe('waitUntil', () => {
describe('options', () => {
test('timeout', async () => {
expect(async () => {
await vi.waitUntil(() => {
return new Promise((resolve) => {
setTimeout(() => {
resolve(true)
}, 100)
})
}, 50)
}).rejects.toThrow('Timed out in waitUntil!')
})
test('interval', async () => {
const callback = vi.fn(() => {
return false
})
await expect(
vi.waitUntil(callback, {
timeout: 60,
interval: 30,
}),
).rejects.toThrowErrorMatchingInlineSnapshot('"Timed out in waitUntil!"')
expect(callback).toHaveBeenCalledTimes(2)
})
})
test('basic', async () => {
let result = true
await vi.waitUntil(() => {
result = !result
return result
})
expect(result).toBe(true)
})
test('async function', async () => {
let finished = false
setTimeout(() => {
finished = true
}, 50)
await vi.waitUntil(async () => {
return Promise.resolve(finished)
})
})
test('stacktrace correctly when callback throw error', async () => {
const check = () => {
const _a = 1
// @ts-expect-error test
_a += 1
return true
}
try {
await vi.waitUntil(check, 20)
}
catch (error) {
expect((error as Error).message).toMatchInlineSnapshot('"Assignment to constant variable."')
expect.soft((error as Error).stack).toMatch(/at check/)
}
})
test('fakeTimer works', async () => {
vi.useFakeTimers()
setTimeout(() => {
vi.advanceTimersByTime(200)
}, 50)
await vi.waitUntil(() => {
return new Promise<boolean>((resolve) => {
setTimeout(() => {
resolve(true)
}, 150)
})
}, 200)
vi.useRealTimers()
})
})