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//
// 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 "Preprocessor.h"
#include "Token.h"
static void PreprocessAndVerifyLocation(int count,
const char* const string[],
const int length[],
pp::Token::Location location)
{
pp::Token token;
pp::Preprocessor preprocessor;
ASSERT_TRUE(preprocessor.init(count, string, length));
EXPECT_EQ(pp::Token::IDENTIFIER, preprocessor.lex(&token));
EXPECT_EQ(pp::Token::IDENTIFIER, token.type);
EXPECT_STREQ("foo", token.value.c_str());
EXPECT_EQ(location.file, token.location.file);
EXPECT_EQ(location.line, token.location.line);
}
TEST(LocationTest, String0_Line1)
{
const char* str = "foo";
pp::Token::Location loc;
loc.file = 0;
loc.line = 1;
SCOPED_TRACE("String0_Line1");
PreprocessAndVerifyLocation(1, &str, 0, loc);
}
TEST(LocationTest, String0_Line2)
{
const char* str = "\nfoo";
pp::Token::Location loc;
loc.file = 0;
loc.line = 2;
SCOPED_TRACE("String0_Line2");
PreprocessAndVerifyLocation(1, &str, 0, loc);
}
TEST(LocationTest, String1_Line1)
{
const char* const str[] = {"\n\n", "foo"};
pp::Token::Location loc;
loc.file = 1;
loc.line = 1;
SCOPED_TRACE("String1_Line1");
PreprocessAndVerifyLocation(2, str, 0, loc);
}
TEST(LocationTest, String1_Line2)
{
const char* const str[] = {"\n\n", "\nfoo"};
pp::Token::Location loc;
loc.file = 1;
loc.line = 2;
SCOPED_TRACE("String1_Line2");
PreprocessAndVerifyLocation(2, str, 0, loc);
}
TEST(LocationTest, NewlineInsideCommentCounted)
{
const char* str = "/*\n\n*/foo";
pp::Token::Location loc;
loc.file = 0;
loc.line = 3;
SCOPED_TRACE("NewlineInsideCommentCounted");
PreprocessAndVerifyLocation(1, &str, 0, loc);
}
TEST(LocationTest, ErrorLocationAfterComment)
{
const char* str = "/*\n\n*/@";
pp::Token token;
pp::Preprocessor preprocessor;
ASSERT_TRUE(preprocessor.init(1, &str, 0));
EXPECT_EQ(pp::Token::INVALID_CHARACTER, preprocessor.lex(&token));
EXPECT_EQ(pp::Token::INVALID_CHARACTER, token.type);
EXPECT_STREQ("@", token.value.c_str());
EXPECT_EQ(0, token.location.file);
EXPECT_EQ(3, token.location.line);
}
// The location of a token straddling two or more strings is that of the
// first character of the token.
TEST(LocationTest, TokenStraddlingTwoStrings)
{
const char* const str[] = {"f", "oo"};
pp::Token::Location loc;
loc.file = 0;
loc.line = 1;
SCOPED_TRACE("TokenStraddlingTwoStrings");
PreprocessAndVerifyLocation(2, str, 0, loc);
}
TEST(LocationTest, TokenStraddlingThreeStrings)
{
const char* const str[] = {"f", "o", "o"};
pp::Token::Location loc;
loc.file = 0;
loc.line = 1;
SCOPED_TRACE("TokenStraddlingThreeStrings");
PreprocessAndVerifyLocation(3, str, 0, loc);
}
// TODO(alokp): Add tests for #line directives.
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