kc3-lang/angle/tests/preprocessor_tests/comment_test.cpp

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• Hash : 2c958eef
  Author :
  Date : 2012-05-17T20:35:42
  

  Moved error-handling to a separate class - Diagnostics. We were earlier returning errors as tokens which did not work very well when error occured while parsing a preprocessor directive. Now all returned tokens are valid. Errors are reported via an abstract Diagnostics interface. Updated unit-tests with the new scheme.
  Review URL: https://codereview.appspot.com/6203089
  
  git-svn-id: https://angleproject.googlecode.com/svn/trunk@1087 736b8ea6-26fd-11df-bfd4-992fa37f6226
  

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• tests/preprocessor_tests/comment_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 "gtest/gtest.h"
  
  #include "MockDiagnostics.h"
  #include "Preprocessor.h"
  #include "Token.h"
  
  class CommentTest : public testing::TestWithParam<const char*>
  {
  };
  
  TEST_P(CommentTest, CommentIgnored)
  {
      const char* str = GetParam();
  
      MockDiagnostics diagnostics;
      pp::Preprocessor preprocessor(&diagnostics);
      ASSERT_TRUE(preprocessor.init(1, &str, 0));
  
      pp::Token token;
      preprocessor.lex(&token);
      EXPECT_EQ(pp::Token::LAST, token.type);
  }
  
  INSTANTIATE_TEST_CASE_P(LineComment, CommentTest,
                          testing::Values("//foo\n", // With newline.
                                          "//foo",   // Without newline.
                                          "//**/",   // Nested block comment.
                                          "////",    // Nested line comment.
                                          "//\""));  // Invalid character.  
  
  INSTANTIATE_TEST_CASE_P(BlockComment, CommentTest,
                          testing::Values("/*foo*/",
                                          "/*foo\n*/", // With newline.
                                          "/*//*/",    // Nested line comment.
                                          "/*/**/",    // Nested block comment.
                                          "/***/",     // With lone '*'.
                                          "/*\"*/"));  // Invalid character.
  
  TEST(BlockComment, CommentReplacedWithSpace)
  {
      const char* str = "/*foo*/bar";
  
      MockDiagnostics diagnostics;
      pp::Preprocessor preprocessor(&diagnostics);
      ASSERT_TRUE(preprocessor.init(1, &str, 0));
  
      pp::Token token;
      preprocessor.lex(&token);
      EXPECT_EQ(pp::Token::IDENTIFIER, token.type);
      EXPECT_STREQ("bar", token.value.c_str());
      EXPECT_TRUE(token.hasLeadingSpace());
  }
  
  TEST(BlockComment, UnterminatedComment)
  {
      const char* str = "/*foo";
  
      MockDiagnostics diagnostics;
      pp::Preprocessor preprocessor(&diagnostics);
      ASSERT_TRUE(preprocessor.init(1, &str, 0));
  
      using testing::_;
      EXPECT_CALL(diagnostics, print(pp::Diagnostics::EOF_IN_COMMENT, _, _));
  
      pp::Token token;
      preprocessor.lex(&token);
  }
  

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