TST: Add test of the make_spase mask generation

pandas-dev · Sep 18, 2017 · 501ba6f · 501ba6f
1 parent 7804303
commit 501ba6f
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/pandas/tests/sparse/test_array.py b/pandas/tests/sparse/test_array.py
@@ -61,6 +61,12 @@ def test_constructor_object_dtype(self):
         assert arr.dtype == np.object
         assert arr.fill_value == 'A'
 
+        data = [False, 0, 100.0, 0.0]
+        arr = SparseArray(data, dtype=np.object, fill_value=False)
+        assert arr.dtype == np.object
+        assert arr.fill_value is False
+        assert (arr == np.array(data, dtype=np.object)).to_dense().all()
+
     def test_constructor_spindex_dtype(self):
         arr = SparseArray(data=[1, 2], sparse_index=IntIndex(4, [1, 2]))
         tm.assert_sp_array_equal(arr, SparseArray([np.nan, 1, 2, np.nan]))