ladybird/Tests/LibCpp/test-cpp-preprocessor.cpp
sin-ack 3f3f45580a Everywhere: Add sv suffix to strings relying on StringView(char const*)
Each of these strings would previously rely on StringView's char const*
constructor overload, which would call __builtin_strlen on the string.
Since we now have operator ""sv, we can replace these with much simpler
versions. This opens the door to being able to remove
StringView(char const*).

No functional changes.
2022-07-12 23:11:35 +02:00

54 lines
1.7 KiB
C++

/*
* Copyright (c) 2021, Itamar S. <itamar8910@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/LexicalPath.h>
#include <LibCore/DirIterator.h>
#include <LibCore/Stream.h>
#include <LibCpp/Parser.h>
#include <LibTest/TestCase.h>
constexpr char TESTS_ROOT_DIR[] = "/home/anon/Tests/cpp-tests/preprocessor";
static String read_all(String const& path)
{
auto file = MUST(Core::Stream::File::open(path, Core::Stream::OpenMode::Read));
auto file_size = MUST(file->size());
auto content = MUST(ByteBuffer::create_uninitialized(file_size));
if (!file->read_or_error(content.bytes()))
VERIFY_NOT_REACHED();
return String { content.bytes() };
}
TEST_CASE(test_regression)
{
Core::DirIterator directory_iterator(TESTS_ROOT_DIR, Core::DirIterator::Flags::SkipDots);
while (directory_iterator.has_next()) {
auto file_path = directory_iterator.next_full_path();
auto path = LexicalPath { file_path };
if (!path.has_extension(".cpp"sv))
continue;
outln("Checking {}...", path.basename());
auto ast_file_path = String::formatted("{}.txt", file_path.substring(0, file_path.length() - sizeof(".cpp") + 1));
auto source = read_all(file_path);
auto target = read_all(ast_file_path);
StringView source_view(source);
Cpp::Preprocessor preprocessor(file_path, source_view);
auto target_lines = target.split_view('\n');
auto tokens = preprocessor.process_and_lex();
EXPECT_EQ(tokens.size(), target_lines.size());
for (size_t i = 0; i < tokens.size(); ++i) {
EXPECT_EQ(tokens[i].to_string(), target_lines[i]);
}
}
}