public async Task GetHeroByNameWithInvalidNameShouldReturnNull() { // Arrange HeroService heroService = this.GetHeroServiceInitialValues(); Hero hero = new Hero() { Name = "HeroOne" }; await this.context.Heroes.AddAsync(hero); // Act Hero heroByName = await heroService.GetHeroByName("Invalid name"); // Assert Assert.Null(heroByName); }