rename x2, y2 -> x-offset, y-offset

      COMMAND ${CMAKE_CURRENT_BINARY_DIR}/${unit_test_name})

endforeach()

file(GLOB spec_test_files "tests/spec/**/test_*.ptx" "examples/**/*.ptx")

file(GLOB spec_test_files "tests/spec/**/test_*.ptx")

foreach(spec_test_path ${spec_test_files})

  get_filename_component(spec_test_name ${spec_test_path} NAME_WE)

  get_filename_component(spec_test_srcdir ${spec_test_path} DIRECTORY)

      COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/tests/spec/test_runner.sh ${CMAKE_CURRENT_BINARY_DIR}/plotfx ${spec_test_path} ${CMAKE_CURRENT_BINARY_DIR}/${spec_test_name}.svg ${spec_test_srcdir}/${spec_test_name}.svg)

endforeach()

file(GLOB example_test_files "examples/**/*.ptx")

foreach(example_test_path ${example_test_files})

  get_filename_component(example_test_name ${example_test_path} NAME_WE)

  get_filename_component(example_test_srcdir ${example_test_path} DIRECTORY)

  add_test(

      NAME test_example_${example_test_name}_svg

      WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}

      COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/tests/spec/test_runner.sh ${CMAKE_CURRENT_BINARY_DIR}/plotfx ${example_test_path} ${CMAKE_CURRENT_BINARY_DIR}/${example_test_name}.svg ${example_test_srcdir}/${example_test_name}.svg)

endforeach()

  layer {

    type: area;

    y1: y;

    y2: z;

    y: y;

    y-offset: z;

  }

}

    type: area;

    x: x;

    group: series;

    y1: y;

    y2: z;

    y: y;

    y-offset: z;

  }

  layer {

  layer {

    type: bars;

    x1: var2;

    x2: var3;

    x: var2;

    x-offset: var3;

    direction: horizontal;

  }

  layer {

    type: bars;

    y1: var2;

    y2: var3;

    y: var2;

    y-offset: var3;

  }

}