assert_response :precondition_failed,
"shouldn't be able to upload a invalid deletion diff: #{@response.body}"
assert_equal "Precondition failed: Way 3 is still used by relations 1.", @response.body
assert_response :precondition_failed,
"shouldn't be able to upload a invalid deletion diff: #{@response.body}"
assert_equal "Precondition failed: Way 3 is still used by relations 1.", @response.body