183 lines
5.9 KiB
TypeScript
183 lines
5.9 KiB
TypeScript
/**
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* Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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import type {Config} from '@jest/types';
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import type {IHasteFS} from 'jest-haste-map';
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import type {MatcherContext} from 'expect';
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import type {MatcherFunctionWithContext} from 'expect';
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import {Plugin as Plugin_2} from 'pretty-format';
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import {Plugins} from 'pretty-format';
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import type {PrettyFormatOptions} from 'pretty-format';
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export declare const addSerializer: (plugin: Plugin_2) => void;
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export declare const buildSnapshotResolver: (
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config: Config.ProjectConfig,
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localRequire?: Promise<LocalRequire> | LocalRequire,
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) => Promise<SnapshotResolver>;
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export declare const cleanup: (
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hasteFS: IHasteFS,
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update: Config.SnapshotUpdateState,
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snapshotResolver: SnapshotResolver,
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testPathIgnorePatterns?: Config.ProjectConfig['testPathIgnorePatterns'],
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) => {
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filesRemoved: number;
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filesRemovedList: Array<string>;
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};
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export declare interface Context extends MatcherContext {
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snapshotState: SnapshotState;
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}
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export declare const EXTENSION = 'snap';
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export declare const getSerializers: () => Plugins;
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export declare const isSnapshotPath: (path: string) => boolean;
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declare type LocalRequire = (module: string) => unknown;
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declare type SaveStatus = {
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deleted: boolean;
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saved: boolean;
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};
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declare type SnapshotFormat = Omit<PrettyFormatOptions, 'compareKeys'>;
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export declare interface SnapshotMatchers<R extends void | Promise<void>, T> {
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/**
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* This ensures that a value matches the most recent snapshot with property matchers.
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* Check out [the Snapshot Testing guide](https://jestjs.io/docs/snapshot-testing) for more information.
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*/
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toMatchSnapshot(hint?: string): R;
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/**
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* This ensures that a value matches the most recent snapshot.
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* Check out [the Snapshot Testing guide](https://jestjs.io/docs/snapshot-testing) for more information.
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*/
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toMatchSnapshot<U extends Record<keyof T, unknown>>(
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propertyMatchers: Partial<U>,
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hint?: string,
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): R;
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/**
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* This ensures that a value matches the most recent snapshot with property matchers.
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* Instead of writing the snapshot value to a .snap file, it will be written into the source code automatically.
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* Check out [the Snapshot Testing guide](https://jestjs.io/docs/snapshot-testing) for more information.
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*/
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toMatchInlineSnapshot(snapshot?: string): R;
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/**
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* This ensures that a value matches the most recent snapshot with property matchers.
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* Instead of writing the snapshot value to a .snap file, it will be written into the source code automatically.
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* Check out [the Snapshot Testing guide](https://jestjs.io/docs/snapshot-testing) for more information.
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*/
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toMatchInlineSnapshot<U extends Record<keyof T, unknown>>(
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propertyMatchers: Partial<U>,
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snapshot?: string,
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): R;
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/**
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* Used to test that a function throws a error matching the most recent snapshot when it is called.
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*/
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toThrowErrorMatchingSnapshot(hint?: string): R;
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/**
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* Used to test that a function throws a error matching the most recent snapshot when it is called.
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* Instead of writing the snapshot value to a .snap file, it will be written into the source code automatically.
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*/
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toThrowErrorMatchingInlineSnapshot(snapshot?: string): R;
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}
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declare type SnapshotMatchOptions = {
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readonly testName: string;
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readonly received: unknown;
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readonly key?: string;
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readonly inlineSnapshot?: string;
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readonly isInline: boolean;
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readonly error?: Error;
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};
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export declare type SnapshotResolver = {
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/** Resolves from `testPath` to snapshot path. */
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resolveSnapshotPath(testPath: string, snapshotExtension?: string): string;
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/** Resolves from `snapshotPath` to test path. */
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resolveTestPath(snapshotPath: string, snapshotExtension?: string): string;
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/** Example test path, used for preflight consistency check of the implementation above. */
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testPathForConsistencyCheck: string;
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};
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declare type SnapshotReturnOptions = {
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readonly actual: string;
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readonly count: number;
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readonly expected?: string;
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readonly key: string;
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readonly pass: boolean;
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};
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export declare class SnapshotState {
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private _counters;
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private _dirty;
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private _index;
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private readonly _updateSnapshot;
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private _snapshotData;
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private readonly _initialData;
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private readonly _snapshotPath;
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private _inlineSnapshots;
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private readonly _uncheckedKeys;
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private readonly _prettierPath;
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private readonly _rootDir;
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readonly snapshotFormat: SnapshotFormat;
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added: number;
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expand: boolean;
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matched: number;
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unmatched: number;
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updated: number;
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constructor(snapshotPath: string, options: SnapshotStateOptions);
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markSnapshotsAsCheckedForTest(testName: string): void;
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private _addSnapshot;
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clear(): void;
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save(): SaveStatus;
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getUncheckedCount(): number;
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getUncheckedKeys(): Array<string>;
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removeUncheckedKeys(): void;
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match({
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testName,
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received,
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key,
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inlineSnapshot,
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isInline,
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error,
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}: SnapshotMatchOptions): SnapshotReturnOptions;
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fail(testName: string, _received: unknown, key?: string): string;
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}
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declare type SnapshotStateOptions = {
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readonly updateSnapshot: Config.SnapshotUpdateState;
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readonly prettierPath?: string | null;
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readonly expand?: boolean;
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readonly snapshotFormat: SnapshotFormat;
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readonly rootDir: string;
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};
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export declare const toMatchInlineSnapshot: MatcherFunctionWithContext<
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Context,
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[propertiesOrSnapshot?: object | string, inlineSnapshot?: string]
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>;
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export declare const toMatchSnapshot: MatcherFunctionWithContext<
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Context,
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[propertiesOrHint?: object | string, hint?: string]
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>;
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export declare const toThrowErrorMatchingInlineSnapshot: MatcherFunctionWithContext<
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Context,
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[inlineSnapshot?: string, fromPromise?: boolean]
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>;
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export declare const toThrowErrorMatchingSnapshot: MatcherFunctionWithContext<
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Context,
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[hint?: string, fromPromise?: boolean]
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>;
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export {};
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