Fix smoke test

IPython/terminal/tests/test_pt_inputhooks.py

@@ -1,50 +1,50 b''
 import os
 import importlib
 
 import pytest
 
 from IPython.terminal.pt_inputhooks import set_qt_api, get_inputhook_name_and_func
 
 
 guis_avail = []
 
 
 def _get_qt_vers():
     """If any version of Qt is available, this will populate `guis_avail` with 'qt' and 'qtx'. Due
     to the import mechanism, we can't import multiple versions of Qt in one session."""
     for gui in ["qt", "qt6", "qt5"]:
         print(f"Trying {gui}")
         try:
             set_qt_api(gui)
             importlib.import_module("IPython.terminal.pt_inputhooks.qt")
             guis_avail.append(gui)
             if "QT_API" in os.environ.keys():
                 del os.environ["QT_API"]
         except ImportError:
             pass  # that version of Qt isn't available.
         except RuntimeError:
             pass  # the version of IPython doesn't know what to do with this Qt version.
 
 
 _get_qt_vers()
 
 
 @pytest.mark.skipif(
     len(guis_avail) == 0, reason="No viable version of PyQt or PySide installed."
 )
 def test_inputhook_qt():
-    gui = guis_avail[0]
-
-    # Choose a qt version and get the input hook function. This will import Qt...
-    get_inputhook_name_and_func(gui)
-
-    # ...and now we're stuck with this version of Qt for good; can't switch.
-    for not_gui in ["qt6", "qt5"]:
-        if not_gui not in guis_avail:
-            break
-
-    with pytest.raises(ImportError):
-        get_inputhook_name_and_func(not_gui)
-
-    # A gui of 'qt' means "best available", or in this case, the last one that was used.
-    get_inputhook_name_and_func("qt")
+    # Choose the "best" Qt version.
+    gui_ret, _ = get_inputhook_name_and_func('qt')
+
+    assert gui_ret != "qt"  # you get back the specific version that was loaded.
+    assert gui_ret in guis_avail
+
+    if len(guis_avail) > 2:
+        # ...and now we're stuck with this version of Qt for good; can't switch.
+        for not_gui in ["qt6", "qt5"]:
+            if not_gui != gui_ret:
+                break
+        # Try to import the other gui; it won't work.
+        gui_ret2, _ = get_inputhook_name_and_func(not_gui)
+        assert gui_ret2 == gui_ret
+        assert gui_ret2 != not_gui