feat: Complete PyPI Query MCP Server Implementation (#3)

Merge pull request implementing complete PyPI query MCP server with comprehensive features and CI/CD pipeline.

tests/test_basic.py

@@ -0,0 +1,78 @@
+"""Basic tests for PyPI Query MCP Server."""
+
+import pytest
+
+from pypi_query_mcp import __version__
+
+
+def test_version():
+    """Test that version is defined."""
+    assert __version__ == "0.1.0"
+
+
+def test_import():
+    """Test that main modules can be imported."""
+    from pypi_query_mcp.core import PyPIClient, VersionCompatibility
+    from pypi_query_mcp.server import app
+    
+    assert PyPIClient is not None
+    assert VersionCompatibility is not None
+    assert app is not None
+
+
+@pytest.mark.asyncio
+async def test_pypi_client_basic():
+    """Test basic PyPI client functionality."""
+    from pypi_query_mcp.core import PyPIClient
+    
+    async with PyPIClient() as client:
+        # Test that client can be created and closed
+        assert client is not None
+        
+        # Test cache clearing
+        client.clear_cache()
+
+
+def test_version_compatibility():
+    """Test version compatibility utility."""
+    from pypi_query_mcp.core import VersionCompatibility
+    
+    compat = VersionCompatibility()
+    
+    # Test requires_python parsing
+    spec = compat.parse_requires_python(">=3.8")
+    assert spec is not None
+    
+    # Test classifier extraction
+    classifiers = [
+        "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
+        "Programming Language :: Python :: Implementation :: CPython"
+    ]
+    
+    versions = compat.extract_python_versions_from_classifiers(classifiers)
+    assert "3.8" in versions
+    assert "3.9" in versions
+    
+    implementations = compat.extract_python_implementations(classifiers)
+    assert "CPython" in implementations
+
+
+def test_mcp_tools_import():
+    """Test that MCP tools can be imported."""
+    from pypi_query_mcp.tools import (
+        check_python_compatibility,
+        get_compatible_python_versions,
+        query_package_dependencies,
+        query_package_info,
+        query_package_versions,
+        suggest_python_version_for_packages,
+    )
+    
+    # Test that all tools are callable
+    assert callable(query_package_info)
+    assert callable(query_package_versions)
+    assert callable(query_package_dependencies)
+    assert callable(check_python_compatibility)
+    assert callable(get_compatible_python_versions)
+    assert callable(suggest_python_version_for_packages)