mock-typeorm/dist/index.d.ts

Never hit the database again while testing

import { EntityManager, SelectQueryBuilder, Repository } from 'typeorm';

type AllEntityManagerMethodObj = {
    [K in keyof EntityManager as EntityManager[K] extends (...args: any[]) => any ? K : never]: K;
};
type EntityManagerSetMockMethods = keyof Omit<AllEntityManagerMethodObj, "createQueryBuilder" | "getRepository" | "getTreeRepository" | "getMongoRepository" | "withRepository" | "getCustomRepository" | "hasId" | "getId" | "create" | "merge" | "transaction">;

type SelectQueryBuilderMethodObj = {
    [K in keyof SelectQueryBuilder<any> as SelectQueryBuilder<any>[K] extends (...args: any[]) => any ? K : never]: SelectQueryBuilder<any>[K];
};
type FilterMethods<T> = {
    [K in keyof SelectQueryBuilderMethodObj as SelectQueryBuilderMethodObj[K] extends (...args: any[]) => T ? K : never]: SelectQueryBuilderMethodObj[K];
};
type ExtractMethodNames<T> = keyof T;
type SelfReferenceQueryBuilderMethods = Exclude<ExtractMethodNames<FilterMethods<SelectQueryBuilder<any>>>, "createQueryBuilder">;
type QueryBuilderReturnMethods = ExtractMethodNames<FilterMethods<Promise<any>>>;
type QueryBuilderMethods = ExtractMethodNames<FilterMethods<any>>;
type AllRepositoryMethods = {
    [K in keyof Repository<any>]: K;
}[keyof Repository<any>];
type RepositoryMethods = Exclude<AllRepositoryMethods, "createQueryBuilder">;

type MockHelper<T> = {
    [RepositoryName: string]: {
        [repositoryMethodName: string]: T;
    };
};
type MockState = MockHelper<any>;
type MockHistory = MockHelper<number>;
type Methods = EntityManagerSetMockMethods | QueryBuilderReturnMethods | SelfReferenceQueryBuilderMethods | RepositoryMethods | QueryBuilderMethods;
interface Constructor<T> {
    new (...args: any[]): T;
}
interface SetMock {
    toReturn(mockData: any, method?: Methods): this;
    reset(method?: Methods): void;
}

declare class MockTypeORM {
    mocks: MockState;
    mockHistory: MockHistory;
    __internal: any;
    constructor();
    onMock(repository: string | Constructor<any>): SetMock;
    resetAll(): void;
    restore(): void;
    private mockDataSouceMethods;
    private mockCreateQueryRunner;
    private mockCreateQueryBuilder;
    private mockSelectQueryBuilderMethods;
    private mockRepositoryMethods;
    private mockEntityManagerMethods;
    private getRepositoryName;
}

export { MockTypeORM };