kc3-lang/angle/src/tests/preprocessor_tests/space_test.cpp

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• Author : Corentin Wallez
  Date : 2015-08-31 16:24:10
  Hash : 2728f992
  Message : Make unittest #includes start from src This is will help avoid adding many include directories for the GN build. BUG=angleproject:929 Change-Id: If8f7e98526df3560b8e410ec86271a2da0c6889d Reviewed-on: https://chromium-review.googlesource.com/296480 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Tested-by: Corentin Wallez <cwallez@chromium.org>

• src/tests/preprocessor_tests/space_test.cpp

• //
  // Copyright (c) 2012 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  #include "PreprocessorTest.h"
  #include "compiler/preprocessor/Token.h"
  
  class SpaceTest : public PreprocessorTest
  {
    protected:
      void expectSpace(const std::string& str)
      {
          const char* cstr = str.c_str();
          ASSERT_TRUE(mPreprocessor.init(1, &cstr, 0));
  
          pp::Token token;
          // "foo" is returned after ignoring the whitespace characters.
          mPreprocessor.lex(&token);
          EXPECT_EQ(pp::Token::IDENTIFIER, token.type);
          EXPECT_EQ("foo", token.text);
          // The whitespace character is however recorded with the next token.
          EXPECT_TRUE(token.hasLeadingSpace());
      }
  };
  
  // Whitespace characters allowed in GLSL.
  // Note that newline characters (\n) will be tested separately.
  static const char kSpaceChars[] = {' ', '\t', '\v', '\f'};
  
  // This test fixture tests the processing of a single whitespace character.
  // All tests in this fixture are ran with all possible whitespace character
  // allowed in GLSL.
  class SpaceCharTest : public SpaceTest,
                        public testing::WithParamInterface<char>
  {
  };
  
  TEST_P(SpaceCharTest, SpaceIgnored)
  {
      // Construct test string with the whitespace char before "foo".
      std::string str(1, GetParam());
      str.append("foo");
  
      expectSpace(str);
  }
  
  INSTANTIATE_TEST_CASE_P(SingleSpaceChar,
                          SpaceCharTest,
                          testing::ValuesIn(kSpaceChars));
  
  // This test fixture tests the processing of a string containing consecutive
  // whitespace characters. All tests in this fixture are ran with all possible
  // combinations of whitespace characters allowed in GLSL.
  typedef std::tr1::tuple<char, char, char> SpaceStringParams;
  class SpaceStringTest : public SpaceTest,
                          public testing::WithParamInterface<SpaceStringParams>
  {
  };
  
  TEST_P(SpaceStringTest, SpaceIgnored)
  {
      // Construct test string with the whitespace char before "foo".
      std::string str;
      str.push_back(std::tr1::get<0>(GetParam()));
      str.push_back(std::tr1::get<1>(GetParam()));
      str.push_back(std::tr1::get<2>(GetParam()));
      str.append("foo");
  
      expectSpace(str);
  }
  
  INSTANTIATE_TEST_CASE_P(SpaceCharCombination,
                          SpaceStringTest,
                          testing::Combine(testing::ValuesIn(kSpaceChars),
                                           testing::ValuesIn(kSpaceChars),
                                           testing::ValuesIn(kSpaceChars)));
  
  // The tests above make sure that the space char is recorded in the
  // next token. This test makes sure that a token is not incorrectly marked
  // to have leading space.
  TEST_F(SpaceTest, LeadingSpace)
  {
      const char* str = " foo+ -bar";
      ASSERT_TRUE(mPreprocessor.init(1, &str, 0));
  
      pp::Token token;
      mPreprocessor.lex(&token);
      EXPECT_EQ(pp::Token::IDENTIFIER, token.type);
      EXPECT_EQ("foo", token.text);
      EXPECT_TRUE(token.hasLeadingSpace());
  
      mPreprocessor.lex(&token);
      EXPECT_EQ('+', token.type);
      EXPECT_FALSE(token.hasLeadingSpace());
  
      mPreprocessor.lex(&token);
      EXPECT_EQ('-', token.type);
      EXPECT_TRUE(token.hasLeadingSpace());
  
      mPreprocessor.lex(&token);
      EXPECT_EQ(pp::Token::IDENTIFIER, token.type);
      EXPECT_EQ("bar", token.text);
      EXPECT_FALSE(token.hasLeadingSpace());
  }