Add tests

Author: Daniel Saxton

pandas/tests/frame/test_apply.py

@@ -116,6 +116,26 @@ def test_apply_with_reduce_empty(self):
         # Ensure that x.append hasn't been called
         assert x == []
 
+    def test_apply_funcs_over_empty(self):
+        # GH 28213
+        df = DataFrame(columns=["a", "b", "c"])
+
+        result = df.apply(np.sum)
+        expected = df.sum()
+        assert_series_equal(result, expected)
+
+        result = df.apply(np.prod)
+        expected = df.prod()
+        assert_series_equal(result, expected)
+
+        result = df.apply(np.any)
+        expected = df.any()
+        assert_series_equal(result, expected)
+
+        result = df.apply(np.all)
+        expected = df.all()
+        assert_series_equal(result, expected)
+
     def test_apply_deprecate_reduce(self):
         empty_frame = DataFrame()