/
tasks.ts
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/
tasks.ts
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import type { Awaitable, ErrorWithDiff } from '@vitest/utils'
import type { ChainableFunction } from '../utils/chain'
import type { FixtureItem } from '../fixture'
export type RunMode = 'run' | 'skip' | 'only' | 'todo'
export type TaskState = RunMode | 'pass' | 'fail'
export interface TaskBase {
id: string
name: string
mode: RunMode
meta: TaskMeta
each?: boolean
concurrent?: boolean
shuffle?: boolean
suite?: Suite
file?: File
result?: TaskResult
retry?: number
repeats?: number
location?: {
line: number
column: number
}
}
export interface TaskPopulated extends TaskBase {
suite: Suite
pending?: boolean
result?: TaskResult
fails?: boolean
onFailed?: OnTestFailedHandler[]
onFinished?: OnTestFinishedHandler[]
/**
* Store promises (from async expects) to wait for them before finishing the test
*/
promises?: Promise<any>[]
}
export interface TaskMeta {}
export interface TaskResult {
state: TaskState
duration?: number
startTime?: number
heap?: number
errors?: ErrorWithDiff[]
htmlError?: string
hooks?: Partial<Record<keyof SuiteHooks, TaskState>>
retryCount?: number
repeatCount?: number
}
export type TaskResultPack = [id: string, result: TaskResult | undefined, meta: TaskMeta]
export interface Suite extends TaskBase {
type: 'suite'
tasks: Task[]
filepath?: string
projectName: string
}
export interface File extends Suite {
filepath: string
collectDuration?: number
setupDuration?: number
}
export interface Test<ExtraContext = {}> extends TaskPopulated {
type: 'test'
context: TaskContext<Test> & ExtraContext & TestContext
}
export interface Custom<ExtraContext = {}> extends TaskPopulated {
type: 'custom'
context: TaskContext<Custom> & ExtraContext & TestContext
}
export type Task = Test | Suite | Custom | File
export type DoneCallback = (error?: any) => void
export type TestFunction<ExtraContext = {}> = (context: ExtendedContext<Test> & ExtraContext) => Awaitable<any> | void
// jest's ExtractEachCallbackArgs
type ExtractEachCallbackArgs<T extends ReadonlyArray<any>> = {
1: [T[0]]
2: [T[0], T[1]]
3: [T[0], T[1], T[2]]
4: [T[0], T[1], T[2], T[3]]
5: [T[0], T[1], T[2], T[3], T[4]]
6: [T[0], T[1], T[2], T[3], T[4], T[5]]
7: [T[0], T[1], T[2], T[3], T[4], T[5], T[6]]
8: [T[0], T[1], T[2], T[3], T[4], T[5], T[6], T[7]]
9: [T[0], T[1], T[2], T[3], T[4], T[5], T[6], T[7], T[8]]
10: [T[0], T[1], T[2], T[3], T[4], T[5], T[6], T[7], T[8], T[9]]
fallback: Array<T extends ReadonlyArray<infer U> ? U : any>
}[T extends Readonly<[any]>
? 1
: T extends Readonly<[any, any]>
? 2
: T extends Readonly<[any, any, any]>
? 3
: T extends Readonly<[any, any, any, any]>
? 4
: T extends Readonly<[any, any, any, any, any]>
? 5
: T extends Readonly<[any, any, any, any, any, any]>
? 6
: T extends Readonly<[any, any, any, any, any, any, any]>
? 7
: T extends Readonly<[any, any, any, any, any, any, any, any]>
? 8
: T extends Readonly<[any, any, any, any, any, any, any, any, any]>
? 9
: T extends Readonly<[any, any, any, any, any, any, any, any, any, any]>
? 10
: 'fallback']
interface EachFunctionReturn<T extends any[]> {
/**
* @deprecated Use options as the second argument instead
*/
(
name: string | Function,
fn: (...args: T) => Awaitable<void>,
options: TestOptions,
): void
(
name: string | Function,
fn: (...args: T) => Awaitable<void>,
options?: number | TestOptions,
): void
(
name: string | Function,
options: TestOptions,
fn: (...args: T) => Awaitable<void>,
): void
}
interface TestEachFunction {
<T extends any[] | [any]>(cases: ReadonlyArray<T>): EachFunctionReturn<T>
<T extends ReadonlyArray<any>>(cases: ReadonlyArray<T>): EachFunctionReturn<ExtractEachCallbackArgs<T>>
<T>(cases: ReadonlyArray<T>): EachFunctionReturn<T[]>
(...args: [TemplateStringsArray, ...any]): EachFunctionReturn<any[]>
}
interface TestCollectorCallable<C = {}> {
/**
* @deprecated Use options as the second argument instead
*/
<ExtraContext extends C>(name: string | Function, fn: TestFunction<ExtraContext>, options: TestOptions): void
<ExtraContext extends C>(name: string | Function, fn?: TestFunction<ExtraContext>, options?: number | TestOptions): void
<ExtraContext extends C>(name: string | Function, options?: TestOptions, fn?: TestFunction<ExtraContext>): void
}
type ChainableTestAPI<ExtraContext = {}> = ChainableFunction<
'concurrent' | 'sequential' | 'only' | 'skip' | 'todo' | 'fails',
TestCollectorCallable<ExtraContext>,
{
each: TestEachFunction
}
>
export interface TestOptions {
/**
* Test timeout.
*/
timeout?: number
/**
* Times to retry the test if fails. Useful for making flaky tests more stable.
* When retries is up, the last test error will be thrown.
*
* @default 0
*/
retry?: number
/**
* How many times the test will run.
* Only inner tests will repeat if set on `describe()`, nested `describe()` will inherit parent's repeat by default.
*
* @default 0
*/
repeats?: number
/**
* Whether tests run concurrently.
* Tests inherit `concurrent` from `describe()` and nested `describe()` will inherit from parent's `concurrent`.
*/
concurrent?: boolean
/**
* Whether tests run sequentially.
* Tests inherit `sequential` from `describe()` and nested `describe()` will inherit from parent's `sequential`.
*/
sequential?: boolean
/**
* Whether the test should be skipped.
*/
skip?: boolean
/**
* Should this test be the only one running in a suite.
*/
only?: boolean
/**
* Whether the test should be skipped and marked as a todo.
*/
todo?: boolean
/**
* Whether the test is expected to fail. If it does, the test will pass, otherwise it will fail.
*/
fails?: boolean
}
interface ExtendedAPI<ExtraContext> {
skipIf: (condition: any) => ChainableTestAPI<ExtraContext>
runIf: (condition: any) => ChainableTestAPI<ExtraContext>
}
export type CustomAPI<ExtraContext = {}> = ChainableTestAPI<ExtraContext> & ExtendedAPI<ExtraContext> & {
extend: <T extends Record<string, any> = {}>(fixtures: Fixtures<T, ExtraContext>) => CustomAPI<{
[K in keyof T | keyof ExtraContext]:
K extends keyof T ? T[K] :
K extends keyof ExtraContext ? ExtraContext[K] : never }>
}
export type TestAPI<ExtraContext = {}> = ChainableTestAPI<ExtraContext> & ExtendedAPI<ExtraContext> & {
extend: <T extends Record<string, any> = {}>(fixtures: Fixtures<T, ExtraContext>) => TestAPI<{
[K in keyof T | keyof ExtraContext]:
K extends keyof T ? T[K] :
K extends keyof ExtraContext ? ExtraContext[K] : never }>
}
export interface FixtureOptions {
/**
* Whether to automatically set up current fixture, even though it's not being used in tests.
*/
auto?: boolean
}
export type Use<T> = (value: T) => Promise<void>
export type FixtureFn<T, K extends keyof T, ExtraContext> =
(context: Omit<T, K> & ExtraContext, use: Use<T[K]>) => Promise<void>
export type Fixture<T, K extends keyof T, ExtraContext = {}> =
((...args: any) => any) extends T[K]
? (T[K] extends any ? FixtureFn<T, K, Omit<ExtraContext, Exclude<keyof T, K>>> : never)
: T[K] | (T[K] extends any ? FixtureFn<T, K, Omit<ExtraContext, Exclude<keyof T, K>>> : never)
export type Fixtures<T extends Record<string, any>, ExtraContext = {}> = {
[K in keyof T]: Fixture<T, K, ExtraContext & ExtendedContext<Test>> | [Fixture<T, K, ExtraContext & ExtendedContext<Test>>, FixtureOptions?]
}
export type InferFixturesTypes<T> = T extends TestAPI<infer C> ? C : T
interface SuiteCollectorCallable<ExtraContext = {}> {
/**
* @deprecated Use options as the second argument instead
*/
<OverrideExtraContext extends ExtraContext = ExtraContext>(name: string | Function, fn: SuiteFactory<OverrideExtraContext>, options: TestOptions): SuiteCollector<OverrideExtraContext>
<OverrideExtraContext extends ExtraContext = ExtraContext>(name: string | Function, fn?: SuiteFactory<OverrideExtraContext>, options?: number | TestOptions): SuiteCollector<OverrideExtraContext>
<OverrideExtraContext extends ExtraContext = ExtraContext>(name: string | Function, options: TestOptions, fn?: SuiteFactory<OverrideExtraContext>): SuiteCollector<OverrideExtraContext>
}
type ChainableSuiteAPI<ExtraContext = {}> = ChainableFunction<
'concurrent' | 'sequential' | 'only' | 'skip' | 'todo' | 'shuffle',
SuiteCollectorCallable<ExtraContext>,
{
each: TestEachFunction
}
>
export type SuiteAPI<ExtraContext = {}> = ChainableSuiteAPI<ExtraContext> & {
skipIf: (condition: any) => ChainableSuiteAPI<ExtraContext>
runIf: (condition: any) => ChainableSuiteAPI<ExtraContext>
}
export type HookListener<T extends any[], Return = void> = (...args: T) => Awaitable<Return>
export type HookCleanupCallback = (() => Awaitable<unknown>) | void
export interface SuiteHooks<ExtraContext = {}> {
beforeAll: HookListener<[Readonly<Suite | File>], HookCleanupCallback>[]
afterAll: HookListener<[Readonly<Suite | File>]>[]
beforeEach: HookListener<[ExtendedContext<Test | Custom> & ExtraContext, Readonly<Suite>], HookCleanupCallback>[]
afterEach: HookListener<[ExtendedContext<Test | Custom> & ExtraContext, Readonly<Suite>]>[]
}
export interface TaskCustomOptions extends TestOptions {
concurrent?: boolean
sequential?: boolean
skip?: boolean
only?: boolean
todo?: boolean
fails?: boolean
each?: boolean
meta?: Record<string, unknown>
fixtures?: FixtureItem[]
handler?: (context: TaskContext<Custom>) => Awaitable<void>
}
export interface SuiteCollector<ExtraContext = {}> {
readonly name: string
readonly mode: RunMode
options?: TestOptions
type: 'collector'
test: TestAPI<ExtraContext>
tasks: (Suite | Custom<ExtraContext> | Test<ExtraContext> | SuiteCollector<ExtraContext>)[]
task: (name: string, options?: TaskCustomOptions) => Custom<ExtraContext>
collect: (file?: File) => Promise<Suite>
clear: () => void
on: <T extends keyof SuiteHooks<ExtraContext>>(name: T, ...fn: SuiteHooks<ExtraContext>[T]) => void
}
export type SuiteFactory<ExtraContext = {}> = (test: TestAPI<ExtraContext>) => Awaitable<void>
export interface RuntimeContext {
tasks: (SuiteCollector | Test)[]
currentSuite: SuiteCollector | null
}
export interface TestContext {}
export interface TaskContext<Task extends Custom | Test = Custom | Test> {
/**
* Metadata of the current test
*/
task: Readonly<Task>
/**
* Extract hooks on test failed
*/
onTestFailed: (fn: OnTestFailedHandler) => void
/**
* Extract hooks on test failed
*/
onTestFinished: (fn: OnTestFinishedHandler) => void
/**
* Mark tests as skipped. All execution after this call will be skipped.
*/
skip: () => void
}
export type ExtendedContext<T extends Custom | Test> = TaskContext<T> & TestContext
export type OnTestFailedHandler = (result: TaskResult) => Awaitable<void>
export type OnTestFinishedHandler = (result: TaskResult) => Awaitable<void>
export type SequenceHooks = 'stack' | 'list' | 'parallel'
export type SequenceSetupFiles = 'list' | 'parallel'