src/tests/preprocessor_tests/comment_test.cpp

//
// Copyright 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"

namespace angle
{

class CommentTest : public SimplePreprocessorTest, public testing::WithParamInterface<const char *>
{};

TEST_P(CommentTest, CommentIgnored)
{
    const char *str = GetParam();

    pp::Token token;
    lexSingleToken(str, &token);
    EXPECT_EQ(pp::Token::LAST, token.type);
}

INSTANTIATE_TEST_SUITE_P(LineComment,
                         CommentTest,
                         testing::Values("//foo\n",  // With newline.
                                         "//foo",    // Without newline.
                                         "//**/",    // Nested block comment.
                                         "////",     // Nested line comment.
                                         "//\""));   // Invalid character.

INSTANTIATE_TEST_SUITE_P(BlockComment,
                         CommentTest,
                         testing::Values("/*foo*/",
                                         "/*foo\n*/",  // With newline.
                                         "/*//*/",     // Nested line comment.
                                         "/*/**/",     // Nested block comment.
                                         "/***/",      // With lone '*'.
                                         "/*\"*/"));   // Invalid character.

class BlockCommentTest : public SimplePreprocessorTest
{};

TEST_F(BlockCommentTest, CommentReplacedWithSpace)
{
    const char *str = "/*foo*/bar";

    pp::Token token;
    lexSingleToken(str, &token);
    EXPECT_EQ(pp::Token::IDENTIFIER, token.type);
    EXPECT_EQ("bar", token.text);
    EXPECT_TRUE(token.hasLeadingSpace());
}

TEST_F(BlockCommentTest, UnterminatedComment)
{
    const char *str = "/*foo";

    using testing::_;
    EXPECT_CALL(mDiagnostics, print(pp::Diagnostics::PP_EOF_IN_COMMENT, _, _));

    preprocess(str);
}

}  // namespace angle