Add a error message when creating an empty Constant (#19674)

Co-authored-by: Anastasia Kuporosova <[email protected]>

src/bindings/python/src/openvino/runtime/opset1/ops.py

@@ -344,6 +344,8 @@ def constant(
     :param name: Optional name for output node.
     :return: The Constant node initialized with provided data.
     """
+    if value is None or (isinstance(value, np.ndarray) and value.size == 0):
+        raise ValueError("Cannot create an empty Constant. Please provide valid data.")
     return make_constant_node(value, dtype)
 
 

src/bindings/python/tests/test_graph/test_ops.py

@@ -5,6 +5,7 @@
 
 import numpy as np
 import pytest
+from contextlib import nullcontext as does_not_raise
 
 import openvino.runtime.opset8 as ov
 from openvino.runtime import AxisSet, Shape, Type
@@ -114,16 +115,19 @@ def test_broadcast():
     assert node.get_output_element_type(0) == element_type
 
 
-@pytest.mark.parametrize("node", [
-    Constant(Type.f32, Shape([3, 3]), list(range(9))),
-    ov.constant(np.arange(9).reshape(3, 3), Type.f32),
-    ov.constant(np.arange(9).reshape(3, 3), np.float32)
+@pytest.mark.parametrize(("const", "args", "expectation"), [
+    (Constant, (Type.f32, Shape([3, 3]), list(range(9))), does_not_raise()),
+    (ov.constant, (np.arange(9).reshape(3, 3), Type.f32), does_not_raise()),
+    (ov.constant, (np.arange(9).reshape(3, 3), np.float32), does_not_raise()),
+    (ov.constant, [None], pytest.raises(ValueError)),
 ])
-def test_constant(node):
-    assert node.get_type_name() == "Constant"
-    assert node.get_output_size() == 1
-    assert list(node.get_output_shape(0)) == [3, 3]
-    assert node.get_output_element_type(0) == Type.f32
+def test_constant(const, args, expectation):
+    with expectation:
+        node = const(*args)
+        assert node.get_type_name() == "Constant"
+        assert node.get_output_size() == 1
+        assert list(node.get_output_shape(0)) == [3, 3]
+        assert node.get_output_element_type(0) == Type.f32
 
 
 def test_concat():