Ensure that robot.py is lowercase

.github/workflows/dist.yml

@@ -27,6 +27,7 @@ jobs:
       run: |
         pip --disable-pip-version-check install mypy
         pip --disable-pip-version-check install -e .
+        pip --disable-pip-version-check install -r tests/requirements.txt
     - name: Run mypy
       uses: liskin/gh-problem-matcher-wrap@v2
       with:
@@ -57,9 +58,42 @@ jobs:
         name: dist
         path: dist
 
+  test:
+    needs: [build]
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: ["ubuntu-22.04", "macos-14", "windows-2022"]
+
+    steps:
+    - uses: actions/checkout@v5
+
+    - uses: actions/setup-python@v5
+      with:
+        python-version: "3.13"
+
+    - name: Download build artifacts
+      uses: actions/download-artifact@v4
+      with:
+        name: dist
+        path: dist
+
+    - name: Install
+      shell: bash
+      working-directory: dist
+      run: python -m pip --disable-pip-version-check install *.whl
+
+    - name: Install test dependencies
+      working-directory: tests
+      run: python -m pip --disable-pip-version-check install -r requirements.txt
+
+    - name: Test wheel
+      working-directory: tests
+      run: python run_tests.py
+
   publish:
     runs-on: ubuntu-latest
-    needs: [check, check-mypy, build]
+    needs: [check, check-mypy, build, test]
     permissions:
       id-token: write
     if: github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags')

robotpy/main.py

@@ -49,6 +49,17 @@ def _load_robot_class():
         print(f"ERROR: {robot_py_path} is a directory", file=sys.stderr)
         sys.exit(1)
 
+    # Ensure that it's robot.py and not Robot.py or similar by checking the
+    # directory entries of its parent
+    lower_name = robot_py_path.name.lower()
+    for entry in robot_py_path.parent.iterdir():
+        if entry.name.lower() == lower_name and entry.name != robot_py_path.name:
+            print(
+                f"ERROR: {robot_py_path} must be {robot_py_path.name} (found '{entry.name}')",
+                file=sys.stderr,
+            )
+            sys.exit(1)
+
     # Add that directory to sys.path to ensure that imports work as expected
     sys.path.insert(0, str(robot_py_path.parent.absolute()))
 

tests/requirements.txt

@@ -0,0 +1 @@
+pytest

tests/run_tests.py

@@ -0,0 +1,13 @@
+#!/usr/bin/env python3
+
+import os
+from os.path import abspath, dirname, join
+import sys
+import subprocess
+
+if __name__ == "__main__":
+    root = abspath(dirname(__file__))
+    os.chdir(root)
+
+    # Run pytest
+    subprocess.check_call([sys.executable, "-m", "pytest"])

tests/test_robot_case.py

@@ -0,0 +1,62 @@
+import sys
+import textwrap
+
+import pytest
+
+from robotpy import main
+
+
+class DummyWpilib:
+    class RobotBase:
+        pass
+
+
+@pytest.fixture(autouse=True)
+def mock_wpilib(monkeypatch):
+    monkeypatch.setitem(sys.modules, "wpilib", DummyWpilib)
+
+
+def test_load_robot_class_exact_case(tmp_path, monkeypatch, capsys):
+    # create correct-case file
+    robot_py = tmp_path / "robot.py"
+    robot_py.write_text(
+        textwrap.dedent(
+            """
+        import wpilib
+        class MyRobot(wpilib.RobotBase):
+            pass                                 
+    """
+        )
+    )
+
+    monkeypatch.setattr(main, "robot_py_path", robot_py)
+
+    # Should pass (exact case)
+    main._load_robot_class()
+
+
+def test_load_robot_class_wrong_case(tmp_path, monkeypatch, capsys):
+    robot_py = tmp_path / "robot.py"
+    Robot_py = tmp_path / "Robot.py"
+    Robot_py.write_text(
+        textwrap.dedent(
+            """
+        import wpilib
+        class MyRobot(wpilib.RobotBase):
+            pass
+    """
+        )
+    )
+
+    case_insensitive_fs = robot_py.exists()
+
+    monkeypatch.setattr(main, "robot_py_path", robot_py)
+
+    with pytest.raises(SystemExit):
+        main._load_robot_class()
+    err = capsys.readouterr().err
+
+    if case_insensitive_fs:
+        assert "must be robot.py" in err
+    else:
+        assert "does not exist" in err