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Update the v2 status banner and pin spawned environments to the running SDK version (#2834)
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Max 2026-06-11 09:41:19 +01:00 • committed by GitHub
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1 changed files with 107 additions and 16 deletions
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27
tests/cli/test_utils.py
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@ -1,3 +1,4 @@
import importlib.metadata
import subprocess
import sys
from pathlib import Path
@ -8,6 +9,15 @@ import pytest
from mcp.cli.cli import _build_uv_command, _get_npx_command, _parse_file_path # type: ignore[reportPrivateUsage]
def _set_mcp_version(monkeypatch: pytest.MonkeyPatch, version: str) -> None:
real_version = importlib.metadata.version
def fake_version(distribution_name: str) -> str:
return version if distribution_name == "mcp" else real_version(distribution_name)
monkeypatch.setattr(importlib.metadata, "version", fake_version)
@pytest.mark.parametrize(
"spec, expected_obj",
[
@ -38,14 +48,23 @@ def test_parse_file_exit_on_dir(tmp_path: Path):
_parse_file_path(str(dir_path))
def test_build_uv_command_minimal():
"""Should emit core command when no extras specified."""
def test_build_uv_command_pins_the_running_mcp_version(monkeypatch: pytest.MonkeyPatch):
"""The spawned environment installs the same SDK version that is running, not the latest stable."""
_set_mcp_version(monkeypatch, "1.2.3")
cmd = _build_uv_command("foo.py")
assert cmd == ["uv", "run", "--with", "mcp==1.2.3", "mcp", "run", "foo.py"]
def test_build_uv_command_leaves_source_builds_unpinned(monkeypatch: pytest.MonkeyPatch):
"""Source-build versions are not on PyPI, so the requirement stays unpinned."""
_set_mcp_version(monkeypatch, "2.0.0a2.dev3+g0123abc")
cmd = _build_uv_command("foo.py")
assert cmd == ["uv", "run", "--with", "mcp", "mcp", "run", "foo.py"]
def test_build_uv_command_adds_editable_and_packages():
def test_build_uv_command_adds_editable_and_packages(monkeypatch: pytest.MonkeyPatch):
"""Should include --with-editable and every --with pkg in correct order."""
_set_mcp_version(monkeypatch, "1.2.3")
test_path = Path("/pkg")
cmd = _build_uv_command(
"foo.py",
@ -56,7 +75,7 @@ def test_build_uv_command_adds_editable_and_packages():
"uv",
"run",
"--with",
"mcp",
"mcp==1.2.3",
"--with-editable",
str(test_path), # Use str() to match what the function does
"--with",