Raise an exception if the value of percent of unlabeled data in stopp…

…ing criterion is not in [0, 1].

alipy/experiment/stopping_criteria.py

@@ -95,6 +95,8 @@ def is_stop(self):
             else:
                 return False
         elif self._stopping_criteria == 'percent_of_unlabel':
+            if self.value > 1 or self.value < 0:
+                raise ValueError("Value of percent_of_unlabel should in [0, 1].")
             if self._percent >= self.value:
                 return True
             else:

test/test_stop.py

@@ -72,3 +72,4 @@ def test_stop4():
     stop4.update_information(example_saver_local)
     assert stop4._percent == 1/6
     assert stop4.is_stop()
+