MCP Debugger

# packages/adapter-rust/tests/binary-detector.test.ts @source-hash: 55506f3edd47d545 @generated: 2026-02-10T00:41:25Z **Primary Purpose**: Test suite for binary format detection utility in a Rust adapter package. Tests the `detectBinaryFormat` function's ability to distinguish between MSVC and GNU compiler outputs based on binary signatures and debug information. **Key Test Utilities**: - `createTempDir()` (L9-11): Creates temporary directories using OS temp folder with prefixed naming - `writeBinary()` (L13-17): Writes binary content (Buffer or string) to files in specified directory - `tempDirs` array (L19): Tracks temporary directories for cleanup - `afterEach` cleanup hook (L21-35): Removes all temporary directories and files after each test **Test Coverage**: - **MSVC Binary Detection** (L38-61): Tests detection of MSVC-compiled binaries via: - RSDS signature presence (`hasRSDS: true`) - PDB file existence (`hasPDB: true`) - DLL import extraction (`vcruntime140.dll`, `ucrtbase.dll`) - Debug info type classification (`debugInfoType: 'pdb'`) - Format classification (`format: 'msvc'`) - **GNU Binary Detection** (L63-83): Tests detection of GNU-compiled binaries via: - DWARF debug section hints (`.debug_info` string) - Absence of RSDS/PDB markers - DLL import parsing (`msvcrt.dll`) - Debug info type classification (`debugInfoType: 'dwarf'`) - Format classification (`format: 'gnu'`) - **Unknown Binary Handling** (L85-96): Tests graceful degradation for unrecognized binary formats with safe defaults **Dependencies**: - `detectBinaryFormat` from `../src/utils/binary-detector.js` - core function under test - Vitest testing framework for test structure and assertions - Node.js filesystem APIs for temp file management **Test Data Pattern**: Uses synthetic binary data with embedded signatures (`MZ` PE header, `RSDS` debug signature, `.debug_info` DWARF marker) and DLL import strings to simulate real compiler outputs without requiring actual compiled binaries. **Architecture Notes**: - Follows isolated test pattern with proper cleanup to prevent test pollution - Uses Buffer construction to create controlled binary test data - Tests both positive detection cases and graceful failure handling