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Tests: Add regression tests for the LibCpp preprocessor
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.
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parent
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commit
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Notes:
sideshowbarker
2024-07-18 06:59:35 +09:00
Author: https://github.com/itamar8910 Commit: https://github.com/SerenityOS/serenity/commit/e57fdb63f8c Pull-request: https://github.com/SerenityOS/serenity/pull/9402
@ -152,6 +152,7 @@ cp -r "$SERENITY_SOURCE_DIR"/Userland/Libraries/LibJS/Tests mnt/home/anon/js-tes
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cp -r "$SERENITY_SOURCE_DIR"/Userland/Libraries/LibWeb/Tests mnt/home/anon/web-tests
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cp -r "$SERENITY_SOURCE_DIR"/Userland/DevTools/HackStudio/LanguageServers/Cpp/Tests mnt/home/anon/cpp-tests/comprehension
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cp -r "$SERENITY_SOURCE_DIR"/Userland/Libraries/LibCpp/Tests/parser mnt/home/anon/cpp-tests/parser
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cp -r "$SERENITY_SOURCE_DIR"/Userland/Libraries/LibCpp/Tests/preprocessor mnt/home/anon/cpp-tests/preprocessor
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cp -r "$SERENITY_SOURCE_DIR"/Userland/Libraries/LibWasm/Tests mnt/home/anon/wasm-tests
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cp -r "$SERENITY_SOURCE_DIR"/Userland/Libraries/LibJS/Tests/test-common.js mnt/home/anon/wasm-tests
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chmod 700 mnt/root
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@ -23,7 +23,8 @@ def run():
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"**/CMake*.txt",
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":!:Kernel/FileSystem/ext2_fs.h",
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':!:Userland/DevTools/HackStudio/LanguageServers/Cpp/Tests/*',
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':!:Userland/Libraries/LibCpp/Tests/parser/*'
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':!:Userland/Libraries/LibCpp/Tests/parser/*',
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':!:Userland/Libraries/LibCpp/Tests/preprocessor/*'
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],
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check=True,
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capture_output=True
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@ -12,7 +12,7 @@ cd "$script_path/.." || exit 1
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# */
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GOOD_LICENSE_HEADER_PATTERN=$'^/\*\n( \* Copyright \(c\) [0-9]{4}(-[0-9]{4})?, .*\n)+ \*\n \* SPDX-License-Identifier: BSD-2-Clause\n \*/\n\n'
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BAD_LICENSE_HEADER_ERRORS=()
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LICENSE_HEADER_CHECK_EXCLUDES=(AK/Checked.h AK/Function.h Userland/Libraries/LibC/elf.h Userland/DevTools/HackStudio/LanguageServers/Cpp/Tests/* Userland/Libraries/LibCpp/Tests/parser/*)
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LICENSE_HEADER_CHECK_EXCLUDES=(AK/Checked.h AK/Function.h Userland/Libraries/LibC/elf.h Userland/DevTools/HackStudio/LanguageServers/Cpp/Tests/* Userland/Libraries/LibCpp/Tests/parser/* Userland/Libraries/LibCpp/Tests/preprocessor/*)
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# We check that "#pragma once" is present
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PRAGMA_ONCE_PATTERN='#pragma once'
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@ -13,7 +13,8 @@ if [ "$#" -eq "1" ]; then
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':!:Base' \
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':!:Kernel/FileSystem/ext2_fs.h' \
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':!:Userland/DevTools/HackStudio/LanguageServers/Cpp/Tests/*' \
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':!:Userland/Libraries/LibCpp/Tests/parser/*'
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':!:Userland/Libraries/LibCpp/Tests/parser/*' \
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':!:Userland/Libraries/LibCpp/Tests/preprocessor/*'
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)
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else
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files=()
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56
Tests/LibCpp/test-cpp-preprocessor.cpp
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56
Tests/LibCpp/test-cpp-preprocessor.cpp
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@ -0,0 +1,56 @@
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/*
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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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2
Userland/Libraries/LibCpp/Tests/preprocessor/macro1.cpp
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2
Userland/Libraries/LibCpp/Tests/preprocessor/macro1.cpp
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@ -0,0 +1,2 @@
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#define ADD(x,y) x+y
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ADD(2,5);
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4
Userland/Libraries/LibCpp/Tests/preprocessor/macro1.txt
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4
Userland/Libraries/LibCpp/Tests/preprocessor/macro1.txt
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@ -0,0 +1,4 @@
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Integer 1:0-1:2 (2)
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Plus 1:0-1:2 (+)
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Integer 1:0-1:2 (5)
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Semicolon 1:8-1:8 (;)
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3
Userland/Libraries/LibCpp/Tests/preprocessor/macro2.cpp
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3
Userland/Libraries/LibCpp/Tests/preprocessor/macro2.cpp
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@ -0,0 +1,3 @@
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#define M(x) String {x + "lo"}
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M("he" + "l")
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8
Userland/Libraries/LibCpp/Tests/preprocessor/macro2.txt
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8
Userland/Libraries/LibCpp/Tests/preprocessor/macro2.txt
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@ -0,0 +1,8 @@
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KnownType 2:0-2:0 (String)
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LeftCurly 2:0-2:0 ({)
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DoubleQuotedString 2:0-2:0 ("he")
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Plus 2:0-2:0 (+)
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DoubleQuotedString 2:0-2:0 ("l")
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Plus 2:0-2:0 (+)
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DoubleQuotedString 2:0-2:0 ("lo")
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RightCurly 2:0-2:0 (})
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4
Userland/Libraries/LibCpp/Tests/preprocessor/macro3.cpp
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4
Userland/Libraries/LibCpp/Tests/preprocessor/macro3.cpp
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@ -0,0 +1,4 @@
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#define M(x, y, z) x y = z;
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M(Vector, vec, ({1,2}))
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11
Userland/Libraries/LibCpp/Tests/preprocessor/macro3.txt
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11
Userland/Libraries/LibCpp/Tests/preprocessor/macro3.txt
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@ -0,0 +1,11 @@
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KnownType 2:0-2:0 (Vector)
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Identifier 2:0-2:0 (vec)
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Equals 2:0-2:0 (=)
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LeftParen 2:0-2:0 (()
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LeftCurly 2:0-2:0 ({)
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Integer 2:0-2:0 (1)
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Comma 2:0-2:0 (,)
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Integer 2:0-2:0 (2)
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RightCurly 2:0-2:0 (})
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RightParen 2:0-2:0 ())
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Semicolon 2:0-2:0 (;)
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@ -0,0 +1,2 @@
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#define NUMBER 1337
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int x = NUMBER;
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@ -0,0 +1,5 @@
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KnownType 1:0-1:2 (int)
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Identifier 1:4-1:4 (x)
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Equals 1:6-1:6 (=)
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Integer 1:8-1:13 (1337)
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Semicolon 1:14-1:14 (;)
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