modularized test suite to match modular ADB manager

src/core/platform_utils.py

@@ -0,0 +1,75 @@
+"""
+Platform-specific utilities for Android File Handler.
+Handles path resolution and platform detection.
+"""
+
+import os
+import sys
+from typing import Optional
+
+
+def get_executable_directory() -> str:
+    """Get the directory containing the executable or script."""
+    if getattr(sys, 'frozen', False):
+        # Running as executable (PyInstaller, cx_Freeze, etc.)
+        return os.path.dirname(sys.executable)
+    else:
+        # Running as script - use the script's directory
+        return os.path.dirname(os.path.abspath(__file__))
+
+
+def get_platform_tools_directory() -> str:
+    """Get platform-tools directory."""
+    base_dir = get_executable_directory()
+    
+    # Check if we're in development mode (running from src/ directory)
+    if not getattr(sys, 'frozen', False):
+        # Running as script - check if we're in src/ directory or subdirectory
+        if base_dir.endswith('src'):
+            # Already in src directory - place platform-tools here
+            return os.path.join(base_dir, "platform-tools")
+        elif base_dir.endswith('gui') or os.path.basename(base_dir) in ['gui']:
+            # In src/gui subdirectory - go up one level to src
+            src_dir = os.path.dirname(base_dir)
+            return os.path.join(src_dir, "platform-tools")
+        else:
+            # Not in src structure - assume we need to find/create src directory
+            # This handles cases where the script might be run from project root
+            current_dir = base_dir
+            src_dir = os.path.join(current_dir, "src")
+            if os.path.exists(src_dir):
+                return os.path.join(src_dir, "platform-tools")
+            else:
+                # Fallback to current directory
+                return os.path.join(base_dir, "src", "platform-tools")
+    
+    # Running as executable - use directory next to binary
+    return os.path.join(base_dir, "platform-tools")
+
+
+def get_platform_type() -> str:
+    """Get the current platform type."""
+    return sys.platform
+
+
+def get_adb_binary_name() -> str:
+    """Get the ADB binary name for current platform."""
+    if sys.platform.startswith("win"):
+        return "adb.exe"
+    else:
+        return "adb"
+
+
+def is_windows() -> bool:
+    """Check if running on Windows."""
+    return sys.platform.startswith("win")
+
+
+def is_linux() -> bool:
+    """Check if running on Linux."""
+    return sys.platform.startswith("linux")
+
+
+def is_macos() -> bool:
+    """Check if running on macOS."""
+    return sys.platform.startswith("darwin")