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Similarly to the LibCpp parser regression tests, these tests run the preprocessor on the .cpp test files under Userland/LibCpp/Tests/preprocessor, and compare the output with existing .txt ground truth files.
57 lines
1.6 KiB
C++
57 lines
1.6 KiB
C++
/*
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* Copyright (c) 2021, Itamar S. <itamar8910@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/LexicalPath.h>
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#include <LibCore/DirIterator.h>
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#include <LibCore/File.h>
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#include <LibCpp/Parser.h>
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#include <LibTest/TestCase.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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constexpr char TESTS_ROOT_DIR[] = "/home/anon/cpp-tests/preprocessor";
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static String read_all(const String& path)
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{
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auto result = Core::File::open(path, Core::OpenMode::ReadOnly);
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VERIFY(!result.is_error());
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auto content = result.value()->read_all();
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return { reinterpret_cast<const char*>(content.data()), content.size() };
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}
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TEST_CASE(test_regression)
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{
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Core::DirIterator directory_iterator(TESTS_ROOT_DIR, Core::DirIterator::Flags::SkipDots);
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while (directory_iterator.has_next()) {
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auto file_path = directory_iterator.next_full_path();
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auto path = LexicalPath { file_path };
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if (!path.has_extension(".cpp"))
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continue;
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outln("Checking {}...", path.basename());
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auto ast_file_path = String::formatted("{}.txt", file_path.substring(0, file_path.length() - sizeof(".cpp") + 1));
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auto source = read_all(file_path);
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auto target = read_all(ast_file_path);
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StringView source_view(source);
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Cpp::Preprocessor preprocessor(file_path, source_view);
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auto target_lines = target.split_view('\n');
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auto tokens = preprocessor.process_and_lex();
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EXPECT_EQ(tokens.size(), target_lines.size());
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for (size_t i = 0; i < tokens.size(); ++i) {
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EXPECT_EQ(tokens[i].to_string(), target_lines[i]);
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}
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}
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}
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