Add unittest for Jupyter extension

Author: MilesCranmer

.github/workflows/tests.yml

@@ -70,7 +70,7 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install flake8 pytest pytest-cov
+          pip install flake8 pytest pytest-cov nbval numpy
           cp pysrc/juliacall/juliapkg-dev.json pysrc/juliacall/juliapkg.json
           pip install -e .
       - name: Lint with flake8

pytest/test_all.py

@@ -75,3 +75,21 @@ def test_issue_433():
         """
     )
     assert out == 25
+
+def test_notebook():
+    import os
+    import subprocess
+    import sys
+    from pathlib import Path
+
+    result = subprocess.run(
+        [
+            sys.executable,
+            "-m",
+            "pytest",
+            "--nbval",
+            str(Path(__file__).parent / "test_nb.ipynb"),
+        ],
+        env=os.environ,
+    )
+    assert result.returncode == 0