Build distributions in CI and test the resulting wheel

.github/workflows/test.yml

@@ -17,14 +17,32 @@ on:
           - pypi
 
 jobs:
-  test:
-    # We want to run on external PRs, but not on our own internal PRs as they'll be run
-    # by the push to the branch. Without this if check, checks are duplicated since
-    # internal PRs match both the push and pull_request events.
+  build:
     if:
       github.event_name == 'push' || github.event.pull_request.head.repo.full_name !=
       github.repository
 
+    name: Build source distribution
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+      - uses: actions/setup-python@v6
+        with:
+          python-version: "3.15"
+
+      - name: Build sdist
+        run: |
+          pip install nox
+          nox -s build
+
+      - uses: actions/upload-artifact@v6
+        with:
+          name: build-dist
+          path: ${{ github.workspace }}/dist/
+          if-no-files-found: error
+
+  test:
+    needs: [build]
     runs-on: ${{ matrix.os }}
 
     defaults:
@@ -43,11 +61,17 @@ jobs:
         with:
           python-version: ${{ matrix.python-version }}
 
+      - name: Download source distribution
+        uses: actions/download-artifact@v8
+        with:
+          name: build-dist
+          path: ${{ github.workspace }}/dist
+
       - name: Test
         run: |
           pip install --upgrade pip
           pip install nox
-          nox -s test
+          nox -s test -- dist/*.whl
 
       - name: Upload coverage reports to Codecov
         uses: codecov/codecov-action@v7

noxfile.py

@@ -1,5 +1,6 @@
 from __future__ import annotations
 
+import os
 import pathlib
 import shutil
 
@@ -11,18 +12,29 @@
 
 @nox.session
 def test(session: nox.Session) -> None:
-    """Run the tests."""
-    session.install(".[testing]")
+    """Test the source, or the built distribution."""
+    path = session.posargs[0] if session.posargs else None
+
+    _install_from_path(session, path=path)
+
+    pytest_args: tuple[str, ...] = ()
+    if path is not None:
+        pytest_args = ("--import-mode=importlib", "--pyargs", "bmipy", "tests")
+
+    session.install("coverage", "pytest", "numpy")
+    session.run("coverage", "erase")
 
     session.run(
         "coverage",
         "run",
-        "--source=bmipy,tests",
-        "--branch",
+        "--parallel-mode",
         "--module",
         "pytest",
+        *pytest_args,
     )
-    session.run("coverage", "report", "--ignore-errors", "--show-missing")
+
+    session.run("coverage", "combine")
+    session.run("coverage", "report", "--show-missing")
     session.run("coverage", "xml", "-o", "coverage.xml")
 
 
@@ -74,11 +86,8 @@ def sync_requirements(session: nox.Session) -> None:
 @nox.session
 def build(session: nox.Session) -> None:
     """Build sdist and wheel dists."""
-    session.install("pip")
     session.install("build")
-    session.run("python", "--version")
-    session.run("pip", "--version")
-    session.run("python", "-m", "build", "--outdir", "./build/wheelhouse")
+    session.run("python", "-m", "build", "--outdir", str(ROOT / "dist"))
 
 
 @nox.session
@@ -88,32 +97,6 @@ def release(session):
     session.run("fullrelease")
 
 
-@nox.session(name="publish-testpypi")
-def publish_testpypi(session):
-    """Publish wheelhouse/* to TestPyPI."""
-    session.run("twine", "check", "build/wheelhouse/*")
-    session.run(
-        "twine",
-        "upload",
-        "--skip-existing",
-        "--repository-url",
-        "https://test.pypi.org/legacy/",
-        "build/wheelhouse/*.tar.gz",
-    )
-
-
-@nox.session(name="publish-pypi")
-def publish_pypi(session):
-    """Publish wheelhouse/* to PyPI."""
-    session.run("twine", "check", "build/wheelhouse/*")
-    session.run(
-        "twine",
-        "upload",
-        "--skip-existing",
-        "build/wheelhouse/*.tar.gz",
-    )
-
-
 @nox.session(python=False)
 def clean(session):
     """Remove all .venv's, build files and caches in the directory."""
@@ -143,3 +126,19 @@ def _clean_rglob(pattern):
             p.rmdir()
         else:
             p.unlink()
+
+
+def _install_from_path(session: nox.Session, path: str | None = None) -> None:
+    if path is None:
+        session.install("-e", ".")
+    elif os.path.isfile(path):
+        session.install(path)
+    elif os.path.isdir(path):
+        session.install(
+            "--force-reinstall",
+            "bmipy",
+            f"--find-links={path}",
+            "--no-index",
+        )
+    else:
+        session.error("path must be a source distribution or folder")

pyproject.toml

@@ -70,6 +70,10 @@ where = [
 
 [tool.coverage.run]
 relative_files = true
+source = ["bmipy", "tests"]
+
+[tool.coverage.paths]
+source = ["src/bmipy", "*/site-packages/bmipy"]
 
 [tool.isort]
 known_first_party = "bmipy"