public async Task DeleteCalculationSpecificationRelationship()
        {
            string specificationId = NewRandomString();
            string calculationId   = NewRandomString();

            await AssertDeleteRequest($"specification/{specificationId}/relationships/calculation/{calculationId}",
                                      HttpStatusCode.OK,
                                      () => _client.DeleteCalculationSpecificationRelationship(calculationId, specificationId));
        }