public void WhenIGetASpecificApplicationId_ThenIGetTheCorrectIndex()
{
_indexRepository.Create(_index1);
_indexRepository.Create(_index2);
IndexDefinition newIndex = _indexRepository.GetIndexByApplicationId(_index1.ApplicationId);
newIndex.Should().NotBeNull();
newIndex.ApplicationId.Should().Be(_index1.ApplicationId);
newIndex.Id.Should().NotBe(_index2.Id);
}