testing.util.is_sorted raises AssertionError

Author: samuelsinayoko

pandas/tests/series/test_constructors.py

@@ -1009,7 +1009,7 @@ def test_fromDict(self):
         data = {'a': 0, 'b': 1, 'c': 2, 'd': 3}
 
         series = Series(data)
-        assert tm.is_sorted(series.index)
+        tm.is_sorted(series.index)
 
         data = {'a': 0, 'b': '1', 'c': '2', 'd': datetime.now()}
         series = Series(data)

pandas/util/testing.py

@@ -967,10 +967,11 @@ def isiterable(obj):
 
 
 def is_sorted(seq):
+    """raises assertion error if the input sequence isn't sorted."""
     if isinstance(seq, (Index, Series)):
         seq = seq.values
     # sorting does not change precisions
-    return assert_numpy_array_equal(seq, np.sort(np.array(seq)))
+    assert_numpy_array_equal(seq, np.sort(np.array(seq)))
 
 
 def assert_categorical_equal(left, right, check_dtype=True,