log the exception in wait_for_predicate

Author: mplsgrant

test/test_base.py

@@ -84,7 +84,8 @@ def wait_for_predicate(self, predicate, timeout=5 * 60, interval=5):
             try:
                 if predicate():
                     return
-            except Exception:
+            except Exception as e:
+                self.log.info(e)
                 pass
             sleep(interval)
             timeout -= interval