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/* Copyright (C) 2012-2024 by László Nagy
This file is part of Bear.
Bear is a tool to generate compilation database for clang tooling.
Bear 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.
Bear 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "gtest/gtest.h"
#include "Output.h"
#include <iterator>
namespace {
constexpr cs::Format AS_ARGUMENTS { true, false };
constexpr cs::Format AS_COMMAND { false, false };
constexpr cs::Format AS_ARGUMENTS_NO_OUTPUT { true, true };
constexpr cs::Format AS_COMMAND_NO_OUTPUT { false, true };
cs::Content DEFAULT_CONTENT{};
void value_serialized_and_read_back(
const std::list<cs::Entry>& input,
const std::list<cs::Entry>& expected,
cs::Format format,
cs::Content content = DEFAULT_CONTENT
)
{
cs::CompilationDatabase sut(format, content);
std::stringstream buffer;
auto serialized = sut.to_json(buffer, input);
EXPECT_TRUE(serialized.is_ok());
std::list<cs::Entry> deserialized;
auto count = sut.from_json(buffer, deserialized);
EXPECT_TRUE(count.is_ok());
count.on_success([&expected, &deserialized](auto result) {
EXPECT_EQ(expected.size(), result);
EXPECT_EQ(expected, deserialized);
});
}
TEST(compilation_database, empty_value_serialized_and_read_back)
{
std::list<cs::Entry> expected = {};
value_serialized_and_read_back(expected, expected, AS_ARGUMENTS);
value_serialized_and_read_back(expected, expected, AS_COMMAND);
}
TEST(compilation_database, same_entries_read_back)
{
std::list<cs::Entry> expected = {
{ "entry_one.c", "/path/to", std::nullopt, { "cc", "-c", "entry_one.c" } },
{ "entry_two.c", "/path/to", std::nullopt, { "cc", "-c", "entry_two.c" } },
{ "entries.c", "/path/to", { "entries.o" }, { "cc", "-c", "-o", "entries.o", "entries.c" } },
};
value_serialized_and_read_back(expected, expected, AS_ARGUMENTS);
value_serialized_and_read_back(expected, expected, AS_COMMAND);
}
TEST(compilation_database, entries_without_output_read_back)
{
std::list<cs::Entry> input = {
{ "entry_one.c", "/path/to", std::nullopt, { "cc", "-c", "entry_one.c" } },
{ "entry_two.c", "/path/to", std::nullopt, { "cc", "-c", "entry_two.c" } },
{ "entries.c", "/path/to", { "entries.o" }, { "cc", "-c", "-o", "entries.o", "entries.c" } },
};
std::list<cs::Entry> expected = {
{ "entry_one.c", "/path/to", std::nullopt, { "cc", "-c", "entry_one.c" } },
{ "entry_two.c", "/path/to", std::nullopt, { "cc", "-c", "entry_two.c" } },
{ "entries.c", "/path/to", std::nullopt, { "cc", "-c", "-o", "entries.o", "entries.c" } },
};
value_serialized_and_read_back(input, expected, AS_ARGUMENTS_NO_OUTPUT);
value_serialized_and_read_back(input, expected, AS_COMMAND_NO_OUTPUT);
}
TEST(compilation_database, merged_entries_read_back)
{
std::list<cs::Entry> input = {
{ "entry_one.c", "/path/to", std::nullopt, { "cc", "-c", "entry_one.c" } },
{ "entry_two.c", "/path/to", std::nullopt, { "cc", "-c", "entry_two.c" } },
{ "entry_one.c", "/path/to", std::nullopt, { "cc1", "-c", "entry_one.c" } },
{ "entry_two.c", "/path/to", std::nullopt, { "cc1", "-c", "entry_two.c" } },
};
std::list<cs::Entry> expected = {
{ "entry_one.c", "/path/to", std::nullopt, { "cc", "-c", "entry_one.c" } },
{ "entry_two.c", "/path/to", std::nullopt, { "cc", "-c", "entry_two.c" } },
};
value_serialized_and_read_back(input, expected, AS_ARGUMENTS);
value_serialized_and_read_back(input, expected, AS_COMMAND);
value_serialized_and_read_back(input, expected, AS_ARGUMENTS_NO_OUTPUT);
value_serialized_and_read_back(input, expected, AS_COMMAND_NO_OUTPUT);
}
TEST(compilation_database, duplicate_entries_file_read_back)
{
std::list<cs::Entry> input = {
{ "entry_one.c", "/path/to", { "entry_one.o" }, { "cc", "-c", "entry_one.c" } },
{ "entry_two.c", "/path/to", { "entry_two.o" }, { "cc", "-c", "entry_two.c" } },
{ "entry_one.c", "/path/to/changed", { "entry_one2.o" }, { "cc1", "-c", "-o", "entry_one2.o", "entry_one.c" } },
{ "entry_two.c", "/path/to/changed", { "entry_two2.o" }, { "cc1", "-c", "-o", "entry_two2.o", "entry_two.c" } },
};
std::list<cs::Entry> expected = {
{ "entry_one.c", "/path/to", { "entry_one.o" }, { "cc", "-c", "entry_one.c" } },
{ "entry_two.c", "/path/to", { "entry_two.o" }, { "cc", "-c", "entry_two.c" } },
};
cs::Content content;
content.duplicate_filter_fields = cs::DUPLICATE_FILE;
value_serialized_and_read_back(input, expected, AS_ARGUMENTS, content);
}
TEST(compilation_database, duplicate_entries_file_output_read_back)
{
std::list<cs::Entry> input = {
{ "entry_one.c", "/path/to", { "entry_one.o" }, { "cc", "-c", "entry_one.c" } },
{ "entry_two.c", "/path/to", { "entry_two.o" }, { "cc", "-c", "entry_two.c" } },
{ "entry_one.c", "/path/to/changed", { "entry_one2.o" }, { "cc1", "-c", "-o", "entry_one2.o", "entry_one.c" } },
{ "entry_two.c", "/path/to/changed", { "entry_two2.o" }, { "cc1", "-c", "-o", "entry_two2.o", "entry_two.c" } },
{ "entry_one.c", "/path/to/changed", { "entry_one.o" }, { "cc1", "-c", "entry_one.c" } },
{ "entry_two.c", "/path/to/changed", { "entry_two.o" }, { "cc1", "-c", "entry_two.c" } },
};
std::list<cs::Entry> expected = {
{ "entry_one.c", "/path/to", { "entry_one.o" }, { "cc", "-c", "entry_one.c" } },
{ "entry_two.c", "/path/to", { "entry_two.o" }, { "cc", "-c", "entry_two.c" } },
{ "entry_one.c", "/path/to/changed", { "entry_one2.o" }, { "cc1", "-c", "-o", "entry_one2.o", "entry_one.c" } },
{ "entry_two.c", "/path/to/changed", { "entry_two2.o" }, { "cc1", "-c", "-o", "entry_two2.o", "entry_two.c" } },
};
cs::Content content;
content.duplicate_filter_fields = cs::DUPLICATE_FILE_OUTPUT;
value_serialized_and_read_back(input, expected, AS_ARGUMENTS, content);
}
TEST(compilation_database, duplicate_entries_all_read_back)
{
std::list<cs::Entry> input = {
{ "entry_one.c", "/path/to", { "entry_one.o" }, { "cc", "-c", "entry_one.c" } },
{ "entry_two.c", "/path/to", { "entry_two.o" }, { "cc", "-c", "entry_two.c" } },
{ "entry_three.c", "/path/to", { "entry_three.o" }, { "cc", "-c", "entry_three.c" } },
// Filename changed
{ "entry_one.changed.c", "/path/to", { "entry_one.o" }, { "cc", "-c", "entry_one.c" } },
// Output changed
{ "entry_two.c", "/path/to", { "entry_two_changed.o" }, { "cc", "-c", "entry_two.c" } },
// Flags changed
{ "entry_three.c", "/path/to", { "entry_three.o" }, { "cc", "-DCHANGED", "-c", "entry_three.c" } },
{ "entry_one.c", "/path/to", { "entry_one.o" }, { "cc", "-c", "entry_one.c" } },
{ "entry_two.c", "/path/to", { "entry_two.o" }, { "cc", "-c", "entry_two.c" } },
{ "entry_three.c", "/path/to", { "entry_three.o" }, { "cc", "-c", "entry_three.c" } },
};
std::list<cs::Entry> expected = {
{ "entry_one.c", "/path/to", { "entry_one.o" }, { "cc", "-c", "entry_one.c" } },
{ "entry_two.c", "/path/to", { "entry_two.o" }, { "cc", "-c", "entry_two.c" } },
{ "entry_three.c", "/path/to", { "entry_three.o" }, { "cc", "-c", "entry_three.c" } },
{ "entry_one.changed.c", "/path/to", { "entry_one.o" }, { "cc", "-c", "entry_one.c" } },
{ "entry_two.c", "/path/to", { "entry_two_changed.o" }, { "cc", "-c", "entry_two.c" } },
{ "entry_three.c", "/path/to", { "entry_three.o" }, { "cc", "-DCHANGED", "-c", "entry_three.c" } },
};
cs::Content content;
content.duplicate_filter_fields = cs::DUPLICATE_ALL;
value_serialized_and_read_back(input, expected, AS_ARGUMENTS, content);
}
TEST(compilation_database, deserialize_fails_with_empty_stream)
{
cs::CompilationDatabase sut(AS_COMMAND, DEFAULT_CONTENT);
std::stringstream buffer;
std::list<cs::Entry> deserialized;
auto count = sut.from_json(buffer, deserialized);
EXPECT_FALSE(count.is_ok());
}
TEST(compilation_database, deserialize_fails_with_missing_fields)
{
cs::CompilationDatabase sut(AS_COMMAND, DEFAULT_CONTENT);
std::stringstream buffer;
buffer << "[ { } ]";
std::list<cs::Entry> deserialized;
auto count = sut.from_json(buffer, deserialized);
EXPECT_FALSE(count.is_ok());
}
TEST(compilation_database, deserialize_fails_with_empty_fields)
{
cs::CompilationDatabase sut(AS_COMMAND, DEFAULT_CONTENT);
std::stringstream buffer;
buffer << R"#([ { "file": "file.c", "directory": "", "command": "cc -c file.c" } ])#";
std::list<cs::Entry> deserialized;
auto count = sut.from_json(buffer, deserialized);
EXPECT_FALSE(count.is_ok());
}
TEST(compilation_database, include_filter_works_with_trailing_slash)
{
std::list<cs::Entry> input = {
{ "/home/user/project/build/source/entry_one.c", "/path/to", { "entry_one.o" }, { "cc", "-c", "entry_one.c" } },
{ "/home/user/project/build/source/entry_two.c", "/path/to", { "entry_two.o" }, { "cc", "-c", "entry_two.c" } },
{ "/home/user/project/build/test/entry_one_test.c", "/path/to", { "entry_one_test.o" }, { "cc", "-c", "entry_one.c" } },
{ "/home/user/project/build/test/entry_two_test.c", "/path/to", { "entry_two_test.o" }, { "cc", "-c", "entry_two.c" } },
};
std::list<cs::Entry> expected = {
{ "/home/user/project/build/source/entry_one.c", "/path/to", { "entry_one.o" }, { "cc", "-c", "entry_one.c" } },
{ "/home/user/project/build/source/entry_two.c", "/path/to", { "entry_two.o" }, { "cc", "-c", "entry_two.c" } },
};
cs::Content content;
content.paths_to_include = { fs::path("/home/user/project/build/source") };
content.paths_to_exclude = { fs::path("/home/user/project/build/test") };
value_serialized_and_read_back(input, expected, AS_ARGUMENTS, content);
content.paths_to_include = { fs::path("/home/user/project/build/source/") };
content.paths_to_exclude = { fs::path("/home/user/project/build/test/") };
value_serialized_and_read_back(input, expected, AS_ARGUMENTS, content);
}
}
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