Method compile

packages/testing/testing-module.builder.ts:97–132

(
    options: Pick<NestApplicationContextOptions, 'snapshot' | 'preview'> = {},
  )

  }

  public async compile(
    options: Pick<NestApplicationContextOptions, 'snapshot' | 'preview'> = {},
  ): Promise<TestingModule> {
    this.applyLogger();

    let graphInspector: GraphInspector;
    if (options?.snapshot) {
      graphInspector = new GraphInspector(this.container);
      UuidFactory.mode = UuidFactoryMode.Deterministic;
    } else {
      graphInspector = NoopGraphInspector;
      UuidFactory.mode = UuidFactoryMode.Random;
    }

    const scanner = new DependenciesScanner(
      this.container,
      this.metadataScanner,
      graphInspector,
      this.applicationConfig,
    );
    await scanner.scan(this.module, {
      overrides: this.getModuleOverloads(),
    });

    this.applyOverloadsMap();
    await this.createInstancesOfDependencies(graphInspector, options);
    scanner.applyApplicationProviders();

    const root = this.getRootModule();
    return new TestingModule(
      this.container,
      graphInspector,
      root,
      this.applicationConfig,
    );
  }

  private override<T = any>(typeOrToken: T, isProvider: boolean): OverrideBy {
    const addOverload = (options: any) => {