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

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• Author : alokp@chromium.org
  Date : 2012-05-31 18:10:43
  Hash : c745adb0
  Message : Added PreprocessorTest::preprocess that preprocesses the input string and compares the output with that of the expected string. Renamed other *Test::preprocess methods to something different and clearer. git-svn-id: https://angleproject.googlecode.com/svn/trunk@1126 736b8ea6-26fd-11df-bfd4-992fa37f6226

• tests/preprocessor_tests/pragma_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 "Token.h"
  
  class PragmaTest : public PreprocessorTest
  {
  };
  
  TEST_F(PragmaTest, EmptyName)
  {
      const char* str = "#pragma\n";
      const char* expected = "\n";
  
      using testing::_;
      // No handlePragma calls.
      EXPECT_CALL(mDirectiveHandler, handlePragma(_, _, _)).Times(0);
      // No error or warning.
      EXPECT_CALL(mDiagnostics, print(_, _, _)).Times(0);
  
      preprocess(str, expected);
  }
  
  TEST_F(PragmaTest, EmptyValue)
  {
      const char* str = "#pragma foo\n";
      const char* expected = "\n";
  
      using testing::_;
      EXPECT_CALL(mDirectiveHandler,
                  handlePragma(pp::SourceLocation(0, 1), "foo", ""));
      // No error or warning.
      EXPECT_CALL(mDiagnostics, print(_, _, _)).Times(0);
  
      preprocess(str, expected);
  }
  
  TEST_F(PragmaTest, NameValue)
  {
      const char* str = "#pragma foo(bar)\n";
      const char* expected = "\n";
  
      using testing::_;
      EXPECT_CALL(mDirectiveHandler,
                  handlePragma(pp::SourceLocation(0, 1), "foo", "bar"));
      // No error or warning.
      EXPECT_CALL(mDiagnostics, print(_, _, _)).Times(0);
  
      preprocess(str, expected);
  }
  
  TEST_F(PragmaTest, Comments)
  {
      const char* str = "/*foo*/"
                        "#"
                        "/*foo*/"
                        "pragma"
                        "/*foo*/"
                        "foo"
                        "/*foo*/"
                        "("
                        "/*foo*/"
                        "bar"
                        "/*foo*/"
                        ")"
                        "/*foo*/"
                        "//foo"
                        "\n";
      const char* expected = "\n";
  
      using testing::_;
      EXPECT_CALL(mDirectiveHandler,
                  handlePragma(pp::SourceLocation(0, 1), "foo", "bar"));
      // No error or warning.
      EXPECT_CALL(mDiagnostics, print(_, _, _)).Times(0);
  
      preprocess(str, expected);
  }
  
  TEST_F(PragmaTest, MissingNewline)
  {
      const char* str = "#pragma foo(bar)";
      const char* expected = "";
  
      using testing::_;
      // Pragma successfully parsed.
      EXPECT_CALL(mDirectiveHandler,
                  handlePragma(pp::SourceLocation(0, 1), "foo", "bar"));
      // Error reported about EOF.
      EXPECT_CALL(mDiagnostics, print(pp::Diagnostics::EOF_IN_DIRECTIVE, _, _));
  
      preprocess(str, expected);
  }
  
  class InvalidPragmaTest : public PragmaTest,
                            public testing::WithParamInterface<const char*>
  {
  };
  
  TEST_P(InvalidPragmaTest, Identified)
  {
      const char* str = GetParam();
      const char* expected = "\n";
  
      using testing::_;
      // No handlePragma calls.
      EXPECT_CALL(mDirectiveHandler, handlePragma(_, _, _)).Times(0);
      // Unrecognized pragma warning.
      EXPECT_CALL(mDiagnostics,
                  print(pp::Diagnostics::UNRECOGNIZED_PRAGMA,
                        pp::SourceLocation(0, 1), _));
  
      preprocess(str, expected);
  }
  
  INSTANTIATE_TEST_CASE_P(All, InvalidPragmaTest, testing::Values(
      "#pragma 1\n",               // Invalid name.
      "#pragma foo()\n",           // Missing value.
      "#pragma foo bar)\n",        // Missing left paren,
      "#pragma foo(bar\n",         // Missing right paren.
      "#pragma foo bar\n",         // Missing parens.
      "#pragma foo(bar) baz\n"));  // Extra tokens.