backport repo checks from jupyterlite#27

jupyterlite_pyodide_kernel/tests/test_repo.py

@@ -0,0 +1,42 @@
+"""Validate the integrity of the repo (or source checkout)"""
+import json
+from pathlib import Path
+
+import pytest
+from jupyterlite_core.constants import UTF8
+
+from jupyterlite_pyodide_kernel.constants import PYODIDE_VERSION
+
+from .conftest import HERE
+
+PACKAGES = HERE / "../../packages"
+KERNEL_PKG = PACKAGES / "pyodide-kernel"
+KERNEL_PKG_JSON = KERNEL_PKG / "package.json"
+
+if not KERNEL_PKG_JSON.exists():  # pragma: no cover
+    pytest.skip(
+        "not in a source checkout, skipping repo tests", allow_module_level=True
+    )
+
+
+def test_pyodide_version():
+    kernel_pkg_data = json.loads(KERNEL_PKG_JSON.read_text(**UTF8))
+    assert (
+        kernel_pkg_data["devDependencies"]["pyodide"] == PYODIDE_VERSION
+    ), f"{kernel_pkg_data} pyodide devDependency is not {PYODIDE_VERSION}"
+
+
+@pytest.fixture
+def the_default_pyodide_url():
+    return f"https://cdn.jsdelivr.net/pyodide/v{PYODIDE_VERSION}/full/pyodide.js"
+
+
+@pytest.mark.parametrize(
+    "pkg_path",
+    [
+        "pyodide-kernel-extension/schema/kernel.v0.schema.json",
+        "pyodide-kernel-extension/src/index.ts",
+    ],
+)
+def test_pyodide_url(pkg_path: Path, the_default_pyodide_url: str):
+    assert the_default_pyodide_url in (PACKAGES / pkg_path).read_text(**UTF8)