add missing test

mindspore/ccsrc/dataset/kernels/data/data_utils.cc

@@ -576,7 +576,7 @@ Status Concatenate(const TensorRow &input, TensorRow *output, int8_t axis, std::
   CHECK_FAIL_RETURN_UNEXPECTED(input[0]->shape().Rank() == 1, "Only 1D tensors supported");
   CHECK_FAIL_RETURN_UNEXPECTED(axis == 0 || axis == -1, "Only concatenation along the last dimension supported");
 
-  Tensor::HandleNeg(axis, input[0]->shape().Rank());
+  axis = Tensor::HandleNeg(axis, input[0]->shape().Rank());
   CHECK_FAIL_RETURN_UNEXPECTED(axis == 0, "Only axis=0 is supported");
 
   std::shared_ptr<Tensor> out;

mindspore/dataset/transforms/c_transforms.py

@@ -166,8 +166,8 @@ class PadEnd(cde.PadEndOp):
     Args:
         pad_shape (list of `int`): list on integers representing the shape needed. Dimensions that set to `None` will
             not be padded (i.e., original dim will be used). Shorter dimensions will truncate the values.
-        pad_value (str, bytes, int, float, or bool, optional): value used to pad. Default to 0 or empty string in case
-            of Tensors of strings.
+        pad_value (python types (str, bytes, int, float, or bool), optional): value used to pad. Default to 0 or empty
+            string in case of Tensors of strings.
     Examples:
         >>> # Data before
         >>> # |   col   |

mindspore/dataset/transforms/validators.py

@@ -233,10 +233,10 @@ def check_mask_op(method):
         if operator is None:
             raise ValueError("operator is not provided.")
 
-        from .c_transforms import Relational
         if constant is None:
             raise ValueError("constant is not provided.")
 
+        from .c_transforms import Relational
         if not isinstance(operator, Relational):
             raise TypeError("operator is not a Relational operator enum.")
 
@@ -270,14 +270,17 @@ def check_pad_end(method):
             raise ValueError("pad_shape is not provided.")
 
         if pad_value is not None and not isinstance(pad_value, (str, float, bool, int, bytes)):
-            raise TypeError("pad_value must be either a primitive python str, float, bool, bytes or int")
+            raise TypeError("pad_value must be either a primitive python str, float, bool, int or bytes.")
 
         if not isinstance(pad_shape, list):
             raise TypeError("pad_shape must be a list")
 
         for dim in pad_shape:
             if dim is not None:
-                check_pos_int64(dim)
+                if isinstance(dim, int):
+                    check_pos_int64(dim)
+                else:
+                    raise TypeError("a value in the list is not an integer.")
 
         kwargs["pad_shape"] = pad_shape
         kwargs["pad_value"] = pad_value

tests/ut/python/dataset/test_concatenate_op.py

@@ -147,6 +147,21 @@ def test_concatenate_op_wrong_axis():
     assert "only 1D concatenation supported." in repr(error_info.value)
 
 
+def test_concatenate_op_negative_axis():
+    def gen():
+        yield (np.array([5., 6., 7., 8.], dtype=np.float),)
+
+    prepend_tensor = np.array([1.4, 2., 3., 4., 4.5], dtype=np.float)
+    append_tensor = np.array([9., 10.3, 11., 12.], dtype=np.float)
+    data = ds.GeneratorDataset(gen, column_names=["col"])
+    concatenate_op = data_trans.Concatenate(-1, prepend_tensor, append_tensor)
+    data = data.map(input_columns=["col"], operations=concatenate_op)
+    expected = np.array([1.4, 2., 3., 4., 4.5, 5., 6., 7., 8., 9., 10.3,
+                         11., 12.])
+    for data_row in data:
+        np.testing.assert_array_equal(data_row[0], expected)
+
+
 def test_concatenate_op_incorrect_input_dim():
     def gen():
         yield (np.array(["ss", "ad"], dtype='S'),)
@@ -166,10 +181,11 @@ if __name__ == "__main__":
     test_concatenate_op_all()
     test_concatenate_op_none()
     test_concatenate_op_string()
+    test_concatenate_op_multi_input_string()
+    test_concatenate_op_multi_input_numeric()
     test_concatenate_op_type_mismatch()
     test_concatenate_op_type_mismatch2()
     test_concatenate_op_incorrect_dim()
-    test_concatenate_op_incorrect_input_dim()
-    test_concatenate_op_multi_input_numeric()
-    test_concatenate_op_multi_input_string()
+    test_concatenate_op_negative_axis()
     test_concatenate_op_wrong_axis()
+    test_concatenate_op_incorrect_input_dim()

tests/ut/python/dataset/test_pad_end_op.py

@@ -22,6 +22,8 @@ import mindspore.dataset as ds
 import mindspore.dataset.transforms.c_transforms as ops
 
 
+# Extensive testing of PadEnd is already done in batch with Pad test cases
+
 def pad_compare(array, pad_shape, pad_value, res):
     data = ds.NumpySlicesDataset([array])
     if pad_value is not None:
@@ -32,8 +34,6 @@ def pad_compare(array, pad_shape, pad_value, res):
         np.testing.assert_array_equal(res, d[0])
 
 
-# Extensive testing of PadEnd is already done in batch with Pad test cases
-
 def test_pad_end_basics():
     pad_compare([1, 2], [3], -1, [1, 2, -1])
     pad_compare([1, 2, 3], [3], -1, [1, 2, 3])
@@ -57,6 +57,10 @@ def test_pad_end_exceptions():
         pad_compare([b"1", b"2", b"3", b"4", b"5"], [2], 1, [])
     assert "Source and pad_value tensors are not of the same type." in str(info.value)
 
+    with pytest.raises(TypeError) as info:
+        pad_compare([3, 4, 5], ["2"], 1, [])
+    assert "a value in the list is not an integer." in str(info.value)
+
 
 if __name__ == "__main__":
     test_pad_end_basics()