if err != nil {
				t.Fatalf("error: expected: %v, got: %v", testCase.expectedErr, err)
			}
		case err == nil:
			t.Fatalf("error: expected: %v, got: %v", testCase.expectedErr, err)
		case testCase.expectedErr.Error() != err.Error():
			t.Fatalf("error: expected: %v, got: %v", testCase.expectedErr, err)
		}

		if testCase.expectedResult != result {

		}
		CheckUser(t, last, *users[2])
	}

	if err := DB.Create(&users).Error; err != nil {
		t.Fatalf("errors happened when create: %v", err)
	} else if user.ID == 0 {
		t.Fatalf("user's primary value should not zero, %v", user.ID)
	} else if user.UpdatedAt.IsZero() {
		t.Fatalf("user's updated at should not zero, %v", user.UpdatedAt)
	}
	lastUpdatedAt = user.UpdatedAt