public async Task UpdateAsync_UnknownIdPassed_ThrowExceptionIsNotNull() { // Arrange int familyId = 11; var updatedFamily = new Family("Name") { Id = familyId }; _repositoryMock .Setup(rep => rep.GetByIdAsync(familyId)) .ReturnsAsync(TestData.GetFamilyById(familyId)); // Act var exception = await Assert.ThrowsAsync <Exception>(() => _familyService.UpdateAsync(familyId, updatedFamily)); // Assert Assert.NotNull(exception); }