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83 lines
3.2 KiB
83 lines
3.2 KiB
declare const S: unique symbol; |
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interface GetState { |
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<A extends any[], R>(spy: SpyInternalImpl<A, R>): SpyInternalImplState<A, R>; |
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<A extends any[], R>(spy: SpyInternal<A, R>): SpyInternalState<A, R>; |
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} |
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declare let spies: Set<SpyImpl<any[], any>>; |
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declare let getInternalState: GetState; |
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type ReturnError = ['error', any]; |
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type ReturnOk<R> = ['ok', R]; |
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type ResultFn<R> = ReturnError | ReturnOk<R>; |
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interface SpyInternal<A extends any[] = any[], R = any> { |
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(this: any, ...args: A): R; |
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[S]: SpyInternalState<A, R>; |
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} |
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interface SpyInternalImpl<A extends any[] = any[], R = any> extends SpyInternal<A, R> { |
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[S]: SpyInternalImplState<A, R>; |
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} |
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interface SpyInternalState<A extends any[] = any[], R = any> { |
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called: boolean; |
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callCount: number; |
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calls: A[]; |
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results: ResultFn<R>[]; |
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resolves: R extends PromiseLike<infer V> ? ResultFn<V>[] : never; |
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reset(): void; |
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impl: ((...args: A) => R) | undefined; |
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next: ResultFn<R>[]; |
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} |
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interface SpyInternalImplState<A extends any[] = any[], R = any> extends SpyInternalState<A, R> { |
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getOriginal(): (...args: A) => R; |
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willCall(cb: (...args: A) => R): this; |
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restore(): void; |
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} |
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interface Spy<A extends any[] = any[], R = any> extends SpyInternalState<A, R> { |
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returns: R[]; |
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length: number; |
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nextError(error: any): this; |
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nextResult(result: R): this; |
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} |
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interface SpyImpl<A extends any[] = any[], R = any> extends Spy<A, R> { |
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getOriginal(): (...args: A) => R; |
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willCall(cb: (...args: A) => R): this; |
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restore(): void; |
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} |
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declare function createInternalSpy<A extends any[], R>(cb?: ((...args: A) => R) | { |
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new (...args: A): R; |
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}): SpyInternal<A, R>; |
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interface SpyFn<A extends any[] = any[], R = any> extends Spy<A, R> { |
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new (...args: A): R extends void ? any : R; |
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(...args: A): R; |
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} |
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declare function spy<A extends any[], R>(cb?: ((...args: A) => R) | { |
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new (...args: A): R; |
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}): SpyFn<A, R>; |
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type Procedure = (...args: any[]) => any; |
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type Methods<T> = { |
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[K in keyof T]: T[K] extends Procedure ? K : never; |
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}[keyof T]; |
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type Getters<T> = { |
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[K in keyof T]: T[K] extends Procedure ? never : K; |
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}[keyof T]; |
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type Constructors<T> = { |
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[K in keyof T]: T[K] extends new (...args: any[]) => any ? K : never; |
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}[keyof T]; |
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declare function internalSpyOn<T, K extends string & keyof T>(obj: T, methodName: K | { |
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getter: K; |
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} | { |
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setter: K; |
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}, mock?: Procedure): SpyInternalImpl<any[], any>; |
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declare function spyOn<T, S extends Getters<Required<T>>>(obj: T, methodName: { |
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setter: S; |
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}, mock?: (arg: T[S]) => void): SpyImpl<[T[S]], void>; |
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declare function spyOn<T, G extends Getters<Required<T>>>(obj: T, methodName: { |
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getter: G; |
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}, mock?: () => T[G]): SpyImpl<[], T[G]>; |
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declare function spyOn<T, M extends Constructors<Required<T>>>(object: T, method: M): Required<T>[M] extends new (...args: infer A) => infer R ? SpyImpl<A, R> : never; |
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declare function spyOn<T, M extends Methods<Required<T>>>(obj: T, methodName: M, mock?: T[M]): Required<T>[M] extends (...args: infer A) => infer R ? SpyImpl<A, R> : never; |
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declare function restoreAll(): void; |
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export { type Spy, type SpyFn, type SpyImpl, type SpyInternal, type SpyInternalImpl, createInternalSpy, getInternalState, internalSpyOn, restoreAll, spies, spy, spyOn };
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