Run tests with local micropip (#20)

.github/workflows/main.yml

@@ -89,7 +89,7 @@ jobs:
       - uses: codecov/codecov-action@v3
         if: ${{ github.event.repo.name == 'pyodide/micropip' || github.event_name == 'pull_request' }}
         with:
-          fail_ci_if_error: true
+          fail_ci_if_error: false
 
   deploy:
     runs-on: ubuntu-latest

.gitignore

@@ -2,3 +2,4 @@ __pycache__
 micropip/_version.py
 *.egg-info
 dist/
+build/

pyproject.toml

@@ -17,7 +17,8 @@ dependencies = []
 [project.optional-dependencies]
 test = [
   "pytest-pyodide",
-  "pytest-cov"
+  "pytest-cov",
+  "build",
 ]
 
 
@@ -28,7 +29,7 @@ test = [
 
 
 [build-system]
-requires = ["setuptools>=42", "setuptools_scm[toml]>=6.2"]
+requires = ["setuptools>=42", "setuptools_scm[toml]>=6.2", "wheel"]
 
 build-backend = "setuptools.build_meta"
 

tests/test_micropip.py

@@ -195,17 +195,48 @@ def mock_fetch(monkeypatch, mock_importlib, wheel_base):
     return result
 
 
+@pytest.fixture(scope="module")
+def wheel_path(tmp_path_factory):
+    # Build a micropip wheel for testing
+    import build
+    from build.env import IsolatedEnvBuilder
+
+    output_dir = tmp_path_factory.mktemp("wheel")
+
+    with IsolatedEnvBuilder() as env:
+        builder = build.ProjectBuilder(Path(__file__).parent.parent)
+        builder.python_executable = env.executable
+        builder.scripts_dir = env.scripts_dir
+        env.install(builder.build_system_requires)
+        builder.build("wheel", output_directory=output_dir)
+
+    yield output_dir
+
+
 @pytest.fixture
-def selenium_standalone_micropip(selenium_standalone):
+def selenium_standalone_micropip(selenium_standalone, wheel_path):
     """Import micropip before entering test so that global initialization of
     micropip doesn't count towards hiwire refcount.
     """
-    selenium_standalone.run_js(
-        """
-        await pyodide.loadPackage("micropip");
-        pyodide.runPython("import micropip");
-        """
-    )
+
+    wheel_dir = Path(wheel_path)
+    wheel_files = list(wheel_dir.glob("*.whl"))
+
+    if not wheel_files:
+        pytest.exit("No wheel files found in wheel/ directory")
+
+    wheel_file = wheel_files[0]
+    with spawn_web_server(wheel_dir) as server:
+        server_hostname, server_port, _ = server
+        base_url = f"http://{server_hostname}:{server_port}/"
+        selenium_standalone.run_js(
+            f"""
+            await pyodide.loadPackage("{base_url + wheel_file.name}");
+            await pyodide.loadPackage(["packaging", "pyparsing"]);
+            pyodide.runPython("import micropip");
+            """
+        )
+
     yield selenium_standalone