text: # Copyright 2015 The Shaderc Authors. All rights reserved.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #     http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  import expect
  from glslc_test_framework import inside_glslc_testsuite
  from placeholder import FileShader
  
  MINIMAL_SHADER = "#version 140\nvoid main(){}"
  # This one is valid GLSL but not valid HLSL.
  GLSL_VERTEX_SHADER = "#version 140\nvoid main(){ gl_Position = vec4(1.0);}"
  # This one is GLSL but without leading #version.  Should result in
  # a parser error when compiled as HLSL.
  GLSL_VERTEX_SHADER_WITHOUT_VERSION = "void main(){ gl_Position = vec4(1.0);}"
  # This one is valid HLSL but not valid GLSL.
  # Use entry point "main" so we don't have to specify -fentry-point
  HLSL_VERTEX_SHADER = "float4 main() : SV_POSITION { return float4(1.0); }"
  
  @inside_glslc_testsuite('OptionDashX')
  class TestDashXNoArg(expect.ErrorMessage):
      """Tests -x with nothing."""
  
      glslc_args = ['-x']
      expected_error = [
          "glslc: error: argument to '-x' is missing (expected 1 value)\n",
          'glslc: error: no input files\n']
  
  
  @inside_glslc_testsuite('OptionDashX')
  class TestDashXGlslOnGlslShader(expect.ValidObjectFile):
      """Tests -x glsl on a GLSL shader."""
  
      shader = FileShader(GLSL_VERTEX_SHADER, '.vert')
      glslc_args = ['-x', 'glsl', '-c', shader]
  
  
  @inside_glslc_testsuite('OptionDashX')
  class TestDashXGlslOnHlslShader(expect.ErrorMessageSubstr):
      """Tests -x glsl on an HLSL shader."""
  
      shader = FileShader(HLSL_VERTEX_SHADER, '.vert')
      glslc_args = ['-x', 'glsl', '-c', shader]
      expected_error_substr = ["error: #version: Desktop shaders for Vulkan SPIR-V"
                               " require version 140 or higher\n"]
  
  
  @inside_glslc_testsuite('OptionDashX')
  class TestDashXHlslOnGlslShader(expect.ErrorMessageSubstr):
      """Tests -x hlsl on a GLSL shader."""
  
      shader = FileShader(GLSL_VERTEX_SHADER, '.vert')
      glslc_args = ['-x', 'hlsl', '-c', shader]
      expected_error_substr = ["error: '#version' : invalid preprocessor command\n"]
  
  
  @inside_glslc_testsuite('OptionDashX')
  class TestDashXHlslOnGlslShaderWithoutVertex(expect.ErrorMessageSubstr):
      """Tests -x hlsl on a GLSL shader without leading #version."""
  
      shader = FileShader(GLSL_VERTEX_SHADER_WITHOUT_VERSION, '.vert')
      glslc_args = ['-x', 'hlsl', '-c', shader]
      expected_error_substr = ["error: 'vec4' : no matching overloaded function found\n"]
  
  
  @inside_glslc_testsuite('OptionDashX')
  class TestDashXWrongParam(expect.ErrorMessage):
      """Tests -x with wrong parameter."""
  
      shader = FileShader(MINIMAL_SHADER, '.vert')
      glslc_args = ['-x', 'gl', shader]
      expected_error = ["glslc: error: language not recognized: 'gl'\n"]
  
  
  @inside_glslc_testsuite('OptionDashX')
  class TestMultipleDashX(expect.ValidObjectFile):
      """Tests that multiple -x works with a single language."""
  
      shader = FileShader(GLSL_VERTEX_SHADER, '.vert')
      glslc_args = ['-c', '-x', 'glsl', '-x', 'glsl', shader, '-x', 'glsl']
  
  
  @inside_glslc_testsuite('OptionDashX')
  class TestMultipleDashXMixedLanguages(expect.ValidObjectFile):
      """Tests that multiple -x works with different languages."""
  
      glsl_shader = FileShader(GLSL_VERTEX_SHADER, '.vert')
      hlsl_shader = FileShader(HLSL_VERTEX_SHADER, '.vert')
      glslc_args = ['-c', '-x', 'hlsl', hlsl_shader,
                    '-x', 'glsl', glsl_shader,
                    '-x', 'hlsl', hlsl_shader,
                    '-x', 'glsl', glsl_shader]
  
  
  @inside_glslc_testsuite('OptionDashX')
  class TestMultipleDashXCorrectWrong(expect.ErrorMessage):
      """Tests -x glsl -x [wrong-language]."""
  
      shader = FileShader(MINIMAL_SHADER, '.vert')
      glslc_args = ['-x', 'glsl', '-x', 'foo', shader]
      expected_error = ["glslc: error: language not recognized: 'foo'\n"]
  
  
  @inside_glslc_testsuite('OptionDashX')
  class TestMultipleDashXWrongCorrect(expect.ErrorMessage):
      """Tests -x [wrong-language] -x glsl."""
  
      shader = FileShader(MINIMAL_SHADER, '.vert')
      glslc_args = ['-xbar', '-x', 'glsl', shader]
      expected_error = ["glslc: error: language not recognized: 'bar'\n"]
  
  
  @inside_glslc_testsuite('OptionDashX')
  class TestDashXGlslConcatenated(expect.ValidObjectFile):
      """Tests -xglsl."""
  
      shader = FileShader(MINIMAL_SHADER, '.vert')
      glslc_args = ['-xglsl', shader, '-c']
  
  
  @inside_glslc_testsuite('OptionDashX')
  class TestDashXWrongParamConcatenated(expect.ErrorMessage):
      """Tests -x concatenated with a wrong language."""
  
      shader = FileShader(MINIMAL_SHADER, '.vert')
      glslc_args = ['-xsl', shader]
      expected_error = ["glslc: error: language not recognized: 'sl'\n"]
  
  
  @inside_glslc_testsuite('OptionDashX')
  class TestDashXEmpty(expect.ErrorMessage):
      """Tests -x ''."""
  
      shader = FileShader(MINIMAL_SHADER, '.vert')
      glslc_args = ['-x', '', shader]
      expected_error = ["glslc: error: language not recognized: ''\n"]
  