1 // 2 // Copyright 2016 The ANGLE Project Authors. All rights reserved. 3 // Use of this source code is governed by a BSD-style license that can be 4 // found in the LICENSE file. 5 // 6 // PruneEmptyDeclarations_test.cpp: 7 // Tests for pruning empty declarations. 8 // 9 10 #include "GLSLANG/ShaderLang.h" 11 #include "angle_gl.h" 12 #include "gtest/gtest.h" 13 #include "tests/test_utils/compiler_test.h" 14 15 using namespace sh; 16 17 namespace 18 { 19 20 class PruneEmptyDeclarationsTest : public MatchOutputCodeTest 21 { 22 public: PruneEmptyDeclarationsTest()23 PruneEmptyDeclarationsTest() 24 : MatchOutputCodeTest(GL_VERTEX_SHADER, SH_GLSL_COMPATIBILITY_OUTPUT) 25 {} 26 }; 27 TEST_F(PruneEmptyDeclarationsTest,EmptyDeclarationStartsDeclaratorList)28TEST_F(PruneEmptyDeclarationsTest, EmptyDeclarationStartsDeclaratorList) 29 { 30 const std::string shaderString = 31 "precision mediump float;\n" 32 "uniform float u;\n" 33 "void main()\n" 34 "{\n" 35 " float, f;\n" 36 " gl_Position = vec4(u * f);\n" 37 "}\n"; 38 compile(shaderString); 39 ASSERT_TRUE(foundInCode("float _uf")); 40 ASSERT_TRUE(notFoundInCode("float, _uf")); 41 ASSERT_TRUE(notFoundInCode("float, f")); 42 ASSERT_TRUE(notFoundInCode("float _u, _uf")); 43 } 44 TEST_F(PruneEmptyDeclarationsTest,EmptyStructDeclarationWithQualifiers)45TEST_F(PruneEmptyDeclarationsTest, EmptyStructDeclarationWithQualifiers) 46 { 47 const std::string shaderString = 48 "precision mediump float;\n" 49 "const struct S { float f; };\n" 50 "uniform S s;" 51 "void main()\n" 52 "{\n" 53 " gl_Position = vec4(s.f);\n" 54 "}\n"; 55 compile(shaderString); 56 ASSERT_TRUE(foundInCode("struct _uS")); 57 ASSERT_TRUE(foundInCode("uniform _uS")); 58 ASSERT_TRUE(notFoundInCode("const struct _uS")); 59 } 60 61 } // namespace 62