significant digits and two numpy array containing strings - fixes #345

Author: seperman

deepdiff/diff.py

@@ -1410,9 +1410,12 @@ def _diff_numpy_array(self, level, parents_ids=frozenset(), local_tree=None):
             else:
                 try:
                     np.testing.assert_almost_equal(level.t1, level.t2, decimal=self.significant_digits)
-                    return  # all good
+                except TypeError:
+                    np.array_equal(level.t1, level.t2, equal_nan=self.ignore_nan_inequality)
                 except AssertionError:
                     pass    # do detailed checking below
+                else:
+                    return  # all good
 
         # compare array meta-data
         _original_type = level.t1.dtype

tests/test_diff_numpy.py

@@ -119,6 +119,12 @@
         'deepdiff_kwargs': {'significant_digits': 3},
         'expected_result': {},
     },
+    'numpy_almost_equal2': {
+        't1': np.array(['a', 'b'], dtype=object),
+        't2': np.array(['a', 'b'], dtype=object),
+        'deepdiff_kwargs': {'significant_digits': 6},
+        'expected_result': {},
+    },
     'numpy_different_shape': {
         't1': np.array([[1, 1], [2, 3]]),
         't2': np.array([1]),