fastmcp/tests/cli/test_install.py

from fastmcp.cli.install import install_app


class TestInstallApp:
    """Test the install subapp."""

    def test_install_app_exists(self):
        """Test that the install app is properly configured."""
        # install_app.name is a tuple in cyclopts
        assert "install" in install_app.name
        assert "Install MCP servers" in install_app.help

    def test_install_commands_registered(self):
        """Test that all install commands are registered."""
        # Check that the app has the expected help text and structure
        # This is a simpler check that doesn't rely on internal methods
        assert hasattr(install_app, "help")
        assert "Install MCP servers" in install_app.help

        # We can test that the commands parse without errors
        try:
            install_app.parse_args(["claude-code", "--help"])
            install_app.parse_args(["claude-desktop", "--help"])
            install_app.parse_args(["cursor", "--help"])
            install_app.parse_args(["mcp-json", "--help"])
        except SystemExit:
            # Help commands exit with 0, that's expected
            pass


class TestClaudeCodeInstall:
    """Test claude-code install command."""

    def test_claude_code_basic(self):
        """Test basic claude-code install command parsing."""
        # Parse command with correct parameter names
        command, bound, _ = install_app.parse_args(
            ["claude-code", "server.py", "--server-name", "test-server"]
        )

        # Verify parsing was successful
        assert command is not None
        assert bound.arguments["server_spec"] == "server.py"
        assert bound.arguments["server_name"] == "test-server"

    def test_claude_code_with_options(self):
        """Test claude-code install with various options."""
        command, bound, _ = install_app.parse_args(
            [
                "claude-code",
                "server.py",
                "--server-name",
                "test-server",
                "--with",
                "package1",
                "--with",
                "package2",
                "--env",
                "VAR1=value1",
            ]
        )

        assert bound.arguments["with_packages"] == ["package1", "package2"]
        assert bound.arguments["env_vars"] == ["VAR1=value1"]


class TestClaudeDesktopInstall:
    """Test claude-desktop install command."""

    def test_claude_desktop_basic(self):
        """Test basic claude-desktop install command parsing."""
        command, bound, _ = install_app.parse_args(
            ["claude-desktop", "server.py", "--server-name", "test-server"]
        )

        assert command is not None
        assert bound.arguments["server_spec"] == "server.py"
        assert bound.arguments["server_name"] == "test-server"

    def test_claude_desktop_with_env_vars(self):
        """Test claude-desktop install with environment variables."""
        command, bound, _ = install_app.parse_args(
            [
                "claude-desktop",
                "server.py",
                "--server-name",
                "test-server",
                "--env",
                "VAR1=value1",
                "--env",
                "VAR2=value2",
            ]
        )

        assert bound.arguments["env_vars"] == ["VAR1=value1", "VAR2=value2"]


class TestCursorInstall:
    """Test cursor install command."""

    def test_cursor_basic(self):
        """Test basic cursor install command parsing."""
        command, bound, _ = install_app.parse_args(
            ["cursor", "server.py", "--server-name", "test-server"]
        )

        assert command is not None
        assert bound.arguments["server_spec"] == "server.py"
        assert bound.arguments["server_name"] == "test-server"

    def test_cursor_with_options(self):
        """Test cursor install with options."""
        command, bound, _ = install_app.parse_args(
            ["cursor", "server.py", "--server-name", "test-server"]
        )

        assert bound.arguments["server_spec"] == "server.py"
        assert bound.arguments["server_name"] == "test-server"


class TestMcpJsonInstall:
    """Test mcp-json install command."""

    def test_mcp_json_basic(self):
        """Test basic mcp-json install command parsing."""
        command, bound, _ = install_app.parse_args(
            ["mcp-json", "server.py", "--server-name", "test-server"]
        )

        assert command is not None
        assert bound.arguments["server_spec"] == "server.py"
        assert bound.arguments["server_name"] == "test-server"

    def test_mcp_json_with_copy(self):
        """Test mcp-json install with copy to clipboard option."""
        command, bound, _ = install_app.parse_args(
            ["mcp-json", "server.py", "--server-name", "test-server", "--copy"]
        )

        assert bound.arguments["copy"] is True


class TestInstallCommandParsing:
    """Test command parsing and error handling."""

    def test_install_minimal_args(self):
        """Test install commands with minimal required arguments."""
        # Each command should work with just a server spec
        commands_to_test = [
            ["claude-code", "server.py"],
            ["claude-desktop", "server.py"],
            ["cursor", "server.py"],
        ]

        for cmd_args in commands_to_test:
            command, bound, _ = install_app.parse_args(cmd_args)
            assert command is not None
            assert bound.arguments["server_spec"] == "server.py"

    def test_mcp_json_minimal(self):
        """Test that mcp-json works with minimal arguments."""
        # Should work with just server spec
        command, bound, _ = install_app.parse_args(["mcp-json", "server.py"])
        assert command is not None
        assert bound.arguments["server_spec"] == "server.py"