Fix Qt and Windows pytest symlink teardown crashes; add right-click test

tests/conftest.py

@@ -13,6 +13,33 @@
 _collector = install_gui_gc(_application)
 
 
+# Windows: pytest's dead-symlink cleanup can raise PermissionError at session
+# teardown (WinError 5 on `pytest-current`), which aborts CPython with
+# STATUS_STACK_BUFFER_OVERRUN. Suppress OSError in those cleanup helpers.
+try:
+    import _pytest.pathlib as _pytest_pathlib
+
+    _orig_cleanup_dead_symlinks = _pytest_pathlib.cleanup_dead_symlinks
+    _orig_cleanup_numbered_dir = _pytest_pathlib.cleanup_numbered_dir
+
+    def _safe_cleanup_dead_symlinks(root):
+        try:
+            _orig_cleanup_dead_symlinks(root)
+        except OSError:
+            pass
+
+    def _safe_cleanup_numbered_dir(root, prefix, keep, consider_lock_dead_if_created_before):
+        try:
+            _orig_cleanup_numbered_dir(root, prefix, keep, consider_lock_dead_if_created_before)
+        except OSError:
+            pass
+
+    _pytest_pathlib.cleanup_dead_symlinks = _safe_cleanup_dead_symlinks
+    _pytest_pathlib.cleanup_numbered_dir = _safe_cleanup_numbered_dir
+except (ImportError, AttributeError):
+    pass
+
+
 @pytest.fixture(autouse=True)
 def collect_gui_cycles():
     yield

tests/test_store_regressions_20260928.py

@@ -254,3 +254,48 @@ def test_frozen_run_button_starts_interpreter_not_explorerpro(tmp_path, monkeypa
     editor._run_code()
     assert launched == [(str(interpreter), [str(script)])]
     editor.close()
+
+
+def test_right_click_on_unselected_row_selects_row(tmp_path, monkeypatch):
+    _app()
+    first = tmp_path / "first.txt"
+    second = tmp_path / "second.txt"
+    first.write_text("first", encoding="utf-8")
+    second.write_text("second", encoding="utf-8")
+
+    browser = FileBrowser()
+    browser.resize(800, 500)
+    browser.show()
+    browser.navigate_to(str(tmp_path))
+    for _ in range(100):
+        _app().processEvents()
+        if browser.proxy.rowCount(browser.table.rootIndex()) == 2:
+            break
+        time.sleep(.01)
+
+    idx_first = browser.proxy.mapFromSource(browser.model.index(str(first)))
+    browser.table.selectRow(idx_first.row())
+    assert [Path(p) for p in browser.get_selected_files()] == [first]
+
+    idx_second = browser.proxy.mapFromSource(browser.model.index(str(second)))
+    assert not browser.table.selectionModel().isRowSelected(idx_second.row(), idx_second.parent())
+
+    menus = []
+
+    class CapturingMenu(QMenu):
+        def exec(self, *args):
+            menus.append(self)
+
+    monkeypatch.setattr(browser_module, "QMenu", CapturingMenu)
+    pos = browser.table.visualRect(idx_second).center()
+    event = QContextMenuEvent(
+        QContextMenuEvent.Reason.Mouse, pos, browser.table.viewport().mapToGlobal(pos)
+    )
+    QApplication.sendEvent(browser.table.viewport(), event)
+
+    assert browser.table.selectionModel().isRowSelected(idx_second.row(), idx_second.parent())
+    assert second in [Path(p) for p in browser.get_selected_files()]
+
+    browser.close()
+    browser.deleteLater()
+    _app().processEvents()