Get baseline 100% clean coverage (#1553)

src/mcp/cli/__init__.py

@@ -2,5 +2,5 @@
 
 from .cli import app
 
-if __name__ == "__main__":
+if __name__ == "__main__":  # pragma: no cover
     app()

src/mcp/cli/claude.py

@@ -14,7 +14,7 @@ logger = get_logger(__name__)
 MCP_PACKAGE = "mcp[cli]"
 
 
-def get_claude_config_path() -> Path | None:
+def get_claude_config_path() -> Path | None:  # pragma: no cover
     """Get the Claude config directory based on platform."""
     if sys.platform == "win32":
         path = Path(Path.home(), "AppData", "Roaming", "Claude")
@@ -33,7 +33,7 @@ def get_claude_config_path() -> Path | None:
 def get_uv_path() -> str:
     """Get the full path to the uv executable."""
     uv_path = shutil.which("uv")
-    if not uv_path:
+    if not uv_path:  # pragma: no cover
         logger.error(
             "uv executable not found in PATH, falling back to 'uv'. Please ensure uv is installed and in your PATH"
         )
@@ -65,14 +65,14 @@ def update_claude_config(
     """
     config_dir = get_claude_config_path()
     uv_path = get_uv_path()
-    if not config_dir:
+    if not config_dir:  # pragma: no cover
         raise RuntimeError(
             "Claude Desktop config directory not found. Please ensure Claude Desktop"
             " is installed and has been run at least once to initialize its config."
         )
 
     config_file = config_dir / "claude_desktop_config.json"
-    if not config_file.exists():
+    if not config_file.exists():  # pragma: no cover
         try:
             config_file.write_text("{}")
         except Exception:
@@ -90,7 +90,7 @@ def update_claude_config(
             config["mcpServers"] = {}
 
         # Always preserve existing env vars and merge with new ones
-        if server_name in config["mcpServers"] and "env" in config["mcpServers"][server_name]:
+        if server_name in config["mcpServers"] and "env" in config["mcpServers"][server_name]:  # pragma: no cover
             existing_env = config["mcpServers"][server_name]["env"]
             if env_vars:
                 # New vars take precedence over existing ones
@@ -103,14 +103,14 @@ def update_claude_config(
 
         # Collect all packages in a set to deduplicate
         packages = {MCP_PACKAGE}
-        if with_packages:
+        if with_packages:  # pragma: no cover
             packages.update(pkg for pkg in with_packages if pkg)
 
         # Add all packages with --with
         for pkg in sorted(packages):
             args.extend(["--with", pkg])
 
-        if with_editable:
+        if with_editable:  # pragma: no cover
             args.extend(["--with-editable", str(with_editable)])
 
         # Convert file path to absolute before adding to command
@@ -118,7 +118,7 @@ def update_claude_config(
         if ":" in file_spec:
             file_path, server_object = file_spec.rsplit(":", 1)
             file_spec = f"{Path(file_path).resolve()}:{server_object}"
-        else:
+        else:  # pragma: no cover
             file_spec = str(Path(file_spec).resolve())
 
         # Add fastmcp run command
@@ -127,7 +127,7 @@ def update_claude_config(
         server_config: dict[str, Any] = {"command": uv_path, "args": args}
 
         # Add environment variables if specified
-        if env_vars:
+        if env_vars:  # pragma: no cover
             server_config["env"] = env_vars
 
         config["mcpServers"][server_name] = server_config
@@ -138,7 +138,7 @@ def update_claude_config(
             extra={"config_file": str(config_file)},
         )
         return True
-    except Exception:
+    except Exception:  # pragma: no cover
         logger.exception(
             "Failed to update Claude config",
             extra={

src/mcp/cli/cli.py

@@ -13,20 +13,20 @@ from mcp.server import Server as LowLevelServer
 
 try:
     import typer
-except ImportError:
+except ImportError:  # pragma: no cover
     print("Error: typer is required. Install with 'pip install mcp[cli]'")
     sys.exit(1)
 
 try:
     from mcp.cli import claude
     from mcp.server.fastmcp.utilities.logging import get_logger
-except ImportError:
+except ImportError:  # pragma: no cover
     print("Error: mcp.server.fastmcp is not installed or not in PYTHONPATH")
     sys.exit(1)
 
 try:
     import dotenv
-except ImportError:
+except ImportError:  # pragma: no cover
     dotenv = None
 
 logger = get_logger("cli")
@@ -53,7 +53,7 @@ def _get_npx_command():
     return "npx"  # On Unix-like systems, just use npx
 
 
-def _parse_env_var(env_var: str) -> tuple[str, str]:
+def _parse_env_var(env_var: str) -> tuple[str, str]:  # pragma: no cover
     """Parse environment variable string in format KEY=VALUE."""
     if "=" not in env_var:
         logger.error(f"Invalid environment variable format: {env_var}. Must be KEY=VALUE")
@@ -77,7 +77,7 @@ def _build_uv_command(
 
     if with_packages:
         for pkg in with_packages:
-            if pkg:
+            if pkg:  # pragma: no cover
                 cmd.extend(["--with", pkg])
 
     # Add mcp run command
@@ -116,7 +116,7 @@ def _parse_file_path(file_spec: str) -> tuple[Path, str | None]:
     return file_path, server_object
 
 
-def _import_server(file: Path, server_object: str | None = None):
+def _import_server(file: Path, server_object: str | None = None):  # pragma: no cover
     """Import an MCP server from a file.
 
     Args:
@@ -209,7 +209,7 @@ def _import_server(file: Path, server_object: str | None = None):
 
 
 @app.command()
-def version() -> None:
+def version() -> None:  # pragma: no cover
     """Show the MCP version."""
     try:
         version = importlib.metadata.version("mcp")
@@ -243,7 +243,7 @@ def dev(
             help="Additional packages to install",
         ),
     ] = [],
-) -> None:
+) -> None:  # pragma: no cover
     """Run an MCP server with the MCP Inspector."""
     file, server_object = _parse_file_path(file_spec)
 
@@ -316,7 +316,7 @@ def run(
             help="Transport protocol to use (stdio or sse)",
         ),
     ] = None,
-) -> None:
+) -> None:  # pragma: no cover
     """Run an MCP server.
 
     The server can be specified in two ways:\n
@@ -411,7 +411,7 @@ def install(
             resolve_path=True,
         ),
     ] = None,
-) -> None:
+) -> None:  # pragma: no cover
     """Install an MCP server in the Claude desktop app.
 
     Environment variables are preserved once added and only updated if new values