Seal Phase 4AG author-APL audit and fixed CAL failure

models/male-cns-lif/author-apl-lab-v2/test_python_entry.py

@@ -0,0 +1,38 @@
+"""Regression for an execution-path error, unrelated to brain dynamics."""
+from pathlib import Path
+from unittest import TestCase,main,mock,skipIf
+import os
+import sys
+import tempfile
+from oracle_apl import _python_entry
+
+
+class PythonEntryTests(TestCase):
+    @skipIf(os.name=='nt','Real POSIX interpreter symlink is validated on the task server')
+    def test_real_symlink_remains_invocation_path(self):
+        with tempfile.TemporaryDirectory(prefix='phase4ag-entry-') as folder:
+            path=Path(folder)/'python'
+            path.symlink_to(sys.executable)
+            self.assertEqual(_python_entry(path),path)
+            self.assertNotEqual(_python_entry(path),path.resolve())
+
+    @skipIf(os.name=='nt','POSIX dangling symlink test is validated on the task server')
+    def test_real_dangling_link_and_directory_rejected(self):
+        with tempfile.TemporaryDirectory(prefix='phase4ag-entry-') as folder:
+            path=Path(folder)/'python'
+            path.symlink_to(Path(folder)/'absent')
+            with self.assertRaises(ValueError):_python_entry(path)
+            with self.assertRaises(ValueError):_python_entry(Path(folder))
+
+    def test_preserves_declared_venv_path_without_resolving_symlink(self):
+        entry=Path.cwd()/'.fixture-venv/bin/python'
+        with mock.patch.object(Path,'resolve',side_effect=AssertionError('Must not resolve interpreter symlink')):
+            with mock.patch.object(Path,'is_file',return_value=True):
+                self.assertEqual(_python_entry(entry),entry)
+
+    def test_missing_python_entry_is_rejected(self):
+        with mock.patch.object(Path,'is_file',return_value=False):
+            with self.assertRaises(ValueError):_python_entry('/missing/python')
+
+
+if __name__=='__main__':main()