public async Task GetItemById_ExistingIdPassed_ReturnNotNull()
{
// Arrange
int familyId = 1;
_repositoryMock
.Setup(rep => rep.GetByIdAsync(familyId))
.ReturnsAsync(TestData.GetFamilyById(familyId));
// Act
var family = await _familyService.GetItemByIdAsync(familyId);
// Assert
Assert.NotNull(family);
}