public void DeleteById_ReturnsOk() { // Arrange _postRepositoryMock .Setup(mock => mock.DeletePost(It.IsAny <Guid>(), It.IsAny <int>())) .Returns(true); // Act var result = _postController.DeleteById(1); // Assert Assert.IsAssignableFrom <OkResult>(result); Assert.Equal((int)HttpStatusCode.OK, (result as OkResult).StatusCode); }