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// Copyright (C) 2011-2018 ycmd contributors
//
// This file is part of ycmd.
//
// ycmd is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// ycmd is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with ycmd. If not, see <http://www.gnu.org/licenses/>.
#include "CompletionData.h"
#include "TranslationUnitStore.h"
#include "Utils.h"
#include "../TestUtils.h"
#include <gtest/gtest.h>
#include <gmock/gmock.h>
#include <clang-c/Index.h>
using ::testing::ElementsAre;
using ::testing::WhenSorted;
namespace YouCompleteMe {
class TranslationUnitTest : public ::testing::Test {
protected:
virtual void SetUp() {
clang_index_ = clang_createIndex( 0, 0 );
}
virtual void TearDown() {
clang_disposeIndex( clang_index_ );
}
CXIndex clang_index_;
};
TEST_F( TranslationUnitTest, ExceptionThrownOnParseFailure ) {
// Create a translation unit for a C++ file that is not saved on disk.
std::string filename = PathToTestFile( "unsaved_file.cpp" ).string();
UnsavedFile unsaved_file;
unsaved_file.filename_ = filename;
try {
// libclang requires a valid index to parse a file.
TranslationUnit( filename,
std::vector< UnsavedFile >{ unsaved_file },
std::vector< std::string >(),
nullptr );
FAIL() << "Expected ClangParseError exception.";
} catch ( const ClangParseError &error ) {
EXPECT_STREQ( error.what(), "Invalid arguments supplied "
"when parsing the translation unit." );
} catch ( ... ) {
FAIL() << "Expected ClangParseError exception.";
}
}
TEST_F( TranslationUnitTest, GoToDefinitionWorks ) {
auto test_file = PathToTestFile( "goto.cpp" ).string();
TranslationUnit unit( test_file,
std::vector< UnsavedFile >(),
std::vector< std::string >(),
clang_index_ );
Location location = unit.GetDefinitionLocation(
test_file,
17,
3,
std::vector< UnsavedFile >() );
EXPECT_EQ( 1, location.line_number_ );
EXPECT_EQ( 8, location.column_number_ );
EXPECT_TRUE( !location.filename_.empty() );
}
TEST_F( TranslationUnitTest, GoToDefinitionFails ) {
auto test_file = PathToTestFile( "goto.cpp" ).string();
TranslationUnit unit( test_file,
std::vector< UnsavedFile >(),
std::vector< std::string >(),
clang_index_ );
Location location = unit.GetDefinitionLocation(
test_file,
19,
3,
std::vector< UnsavedFile >() );
EXPECT_FALSE( location.IsValid() );
}
TEST_F( TranslationUnitTest, GoToDeclarationWorks ) {
auto test_file = PathToTestFile( "goto.cpp" ).string();
TranslationUnit unit( test_file,
std::vector< UnsavedFile >(),
std::vector< std::string >(),
clang_index_ );
Location location = unit.GetDeclarationLocation(
test_file,
19,
3,
std::vector< UnsavedFile >() );
EXPECT_EQ( 12, location.line_number_ );
EXPECT_EQ( 8, location.column_number_ );
EXPECT_TRUE( !location.filename_.empty() );
}
TEST_F( TranslationUnitTest, GoToDeclarationWorksOnDefinition ) {
auto test_file = PathToTestFile( "goto.cpp" ).string();
TranslationUnit unit( test_file,
std::vector< UnsavedFile >(),
std::vector< std::string >(),
clang_index_ );
Location location = unit.GetDeclarationLocation(
test_file,
16,
6,
std::vector< UnsavedFile >() );
EXPECT_EQ( 14, location.line_number_ );
EXPECT_EQ( 6, location.column_number_ );
EXPECT_TRUE( !location.filename_.empty() );
}
TEST_F( TranslationUnitTest, GoToWorks ) {
auto test_file = PathToTestFile( "goto.cpp" ).string();
TranslationUnit unit( test_file,
std::vector< UnsavedFile >(),
std::vector< std::string >(),
clang_index_ );
Location location = unit.GetDefinitionOrDeclarationLocation(
test_file,
16,
8,
std::vector< UnsavedFile >() );
EXPECT_EQ( 14, location.line_number_ );
EXPECT_EQ( 6, location.column_number_ );
EXPECT_TRUE( !location.filename_.empty() );
location = unit.GetDefinitionOrDeclarationLocation(
test_file,
14,
9,
std::vector< UnsavedFile >() );
EXPECT_EQ( 16, location.line_number_ );
EXPECT_EQ( 6, location.column_number_ );
EXPECT_TRUE( !location.filename_.empty() );
}
TEST_F( TranslationUnitTest, InvalidTranslationUnitStore ) {
// libclang fails to parse a file with no extension and no language flag -x
// given.
TranslationUnitStore translation_unit_store{ clang_index_ };
try {
translation_unit_store.GetOrCreate(
PathToTestFile( "file_without_extension" ).string(),
std::vector< UnsavedFile >(),
std::vector< std::string >() );
FAIL() << "Expected ClangParseError exception.";
} catch ( const ClangParseError &error ) {
EXPECT_STREQ( error.what(),
"An AST deserialization error occurred while parsing "
"the translation unit." );
} catch ( ... ) {
FAIL() << "Expected ClangParseError exception.";
}
}
TEST_F( TranslationUnitTest, InvalidTranslationUnit ) {
TranslationUnit unit;
EXPECT_TRUE( unit.IsCurrentlyUpdating() );
std::vector< CompletionData > completion_data_vector =
unit.CandidatesForLocation( "", 1, 1, std::vector< UnsavedFile >() );
EXPECT_TRUE( completion_data_vector.empty() );
EXPECT_EQ( Location(),
unit.GetDeclarationLocation( "",
1,
1,
std::vector< UnsavedFile >() ) );
EXPECT_EQ( Location(),
unit.GetDefinitionLocation( "",
1,
1,
std::vector< UnsavedFile >() ) );
EXPECT_EQ( Location(),
unit.GetDefinitionOrDeclarationLocation(
"",
1,
1,
std::vector< UnsavedFile >() ) );
EXPECT_EQ( std::string( "Internal error: no translation unit" ),
unit.GetTypeAtLocation( "",
1,
1,
std::vector< UnsavedFile >() ) );
EXPECT_EQ( std::string( "Internal error: no translation unit" ),
unit.GetEnclosingFunctionAtLocation(
"",
1,
1,
std::vector< UnsavedFile >() ) );
EXPECT_EQ( DocumentationData(),
unit.GetDocsForLocation( Location(),
std::vector< UnsavedFile >(),
false ) );
}
} // namespace YouCompleteMe
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