text: // Distributed under the MIT License.
  // See LICENSE.txt for details.
  
  #include "Framework/TestingFramework.hpp"
  
  #include <string>
  
  #include "Domain/Structure/Side.hpp"
  #include "Utilities/GetOutput.hpp"
  
  SPECTRE_TEST_CASE("Unit.Domain.Structure.Side", "[Domain][Unit]") {
    Side side_lower = Side::Lower;
    CHECK(opposite(side_lower) == Side::Upper);
    CHECK(opposite(opposite(side_lower)) == Side::Lower);
    CHECK(get_output(side_lower) == "Lower");
    CHECK(get_output(Side::Upper) == "Upper");
  }
  