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LibGLSL: Add tests for GLSL parser
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61
Tests/LibGLSL/test-parser.cpp
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61
Tests/LibGLSL/test-parser.cpp
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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 <AK/MemoryStream.h>
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#include <LibCore/Directory.h>
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#include <LibCore/File.h>
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#include <LibGLSL/Parser.h>
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#include <LibTest/TestCase.h>
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constexpr StringView TESTS_ROOT_DIR = "/home/anon/Tests/glsl-tests/parser"sv;
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static String read_all(String const& path)
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{
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auto file = MUST(Core::File::open(path, Core::File::OpenMode::Read));
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auto file_size = MUST(file->size());
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return MUST(String::from_stream(*file, file_size));
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}
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TEST_CASE(test_regression)
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{
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MUST(Core::Directory::for_each_entry(TESTS_ROOT_DIR, Core::DirIterator::Flags::SkipDots, [](auto const& entry, auto const& directory) -> ErrorOr<IterationDecision> {
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auto path = LexicalPath::join(directory.path().string(), entry.name);
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if (!path.has_extension(".glsl"sv))
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return IterationDecision::Continue;
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outln("Checking {}...", path.basename());
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String file_path = MUST(String::from_deprecated_string(path.string()));
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auto ast_file_path = MUST(String::formatted("{}.ast", MUST(file_path.substring_from_byte_offset(0, file_path.bytes_as_string_view().length() - sizeof(".glsl") + 1))));
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auto source = read_all(file_path);
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auto target_ast = read_all(ast_file_path);
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GLSL::Preprocessor preprocessor(file_path, source);
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GLSL::Parser parser(MUST(preprocessor.process_and_lex()), file_path);
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auto root = MUST(parser.parse());
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EXPECT(parser.errors().is_empty());
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Vector<uint8_t> memory;
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memory.resize(8 * 1024 * 1024);
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AK::FixedMemoryStream output_stream(memory.span());
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MUST(root->dump(output_stream));
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auto written_bytes = MUST(output_stream.tell());
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MUST(output_stream.seek(0));
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String content = MUST(String::from_stream(output_stream, written_bytes));
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auto equal = content == target_ast;
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EXPECT(equal);
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if (!equal)
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outln("Failed on {}", path.basename());
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return IterationDecision::Continue;
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}));
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}
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