[TF FE]: Support complex tensors for ExpandDims operation (openvinoto…

…olkit#26892)

### Details:
 - Support complex tensors for `ExpandDims` operation + tests

### Tickets:
 - [None](openvinotoolkit#22950)

src/frontends/tensorflow_common/src/op/expand_dims.cpp

@@ -3,7 +3,13 @@
 //
 
 #include "common_op_table.hpp"
+#include "helper_ops/complex_type_mark.hpp"
+#include "openvino/op/constant.hpp"
+#include "openvino/op/less.hpp"
+#include "openvino/op/select.hpp"
+#include "openvino/op/subtract.hpp"
 #include "openvino/op/unsqueeze.hpp"
+#include "utils.hpp"
 
 using namespace std;
 using namespace ov::op;
@@ -14,9 +20,31 @@ namespace tensorflow {
 namespace op {
 
 OutputVector translate_expand_dims_op(const NodeContext& node) {
-    default_op_checks(node, 2, {"ExpandDims", "EXPAND_DIMS"});
+    default_op_checks(node, 2, {"ExpandDims", "EXPAND_DIMS"}, true);
     auto input = node.get_input(0);
     auto axis = node.get_input(1);
+    auto complex_type_mark = as_type_ptr<ComplexTypeMark>(input.get_node_shared_ptr());
+
+    if (complex_type_mark) {
+        element::Type complex_part_type = complex_type_mark->get_complex_part_type();
+        input = complex_type_mark->input_value(0);
+
+        auto const_zero = create_same_type_const_scalar<int32_t>(axis, 0);
+
+        auto is_axis_neg = make_shared<v1::Less>(axis, const_zero);
+
+        auto const_one = create_same_type_const_scalar<int32_t>(axis, 1);
+        auto axis_min_one = make_shared<v1::Subtract>(axis, const_one);
+
+        auto new_axis = make_shared<v1::Select>(is_axis_neg, axis_min_one, axis);
+
+        auto unsqueeze = make_shared<v0::Unsqueeze>(input, new_axis);
+
+        set_node_name(node.get_name(), unsqueeze);
+        auto complex_result = make_shared<ComplexTypeMark>(unsqueeze, complex_part_type);
+        return {complex_result};
+    }
+
     auto unsqueeze = make_shared<v0::Unsqueeze>(input, axis);
     set_node_name(node.get_name(), unsqueeze);
     return {unsqueeze};

tests/layer_tests/tensorflow_tests/test_tf_ExpandDims.py

@@ -6,6 +6,7 @@
 import tensorflow as tf
 from common.tf_layer_test_class import CommonTFLayerTest
 
+rng = np.random.default_rng(62362)
 
 class TestExpandDims(CommonTFLayerTest):
     def _prepare_input(self, inputs_info):
@@ -40,3 +41,54 @@ def test_expand_dims_basic(self, params, ie_device, precision, ir_version, temp_
         self._test(*self.create_expand_dims_net(**params),
                    ie_device, precision, ir_version, temp_dir=temp_dir,
                    use_legacy_frontend=use_legacy_frontend)
+
+
+class TestExpandDimsComplex(CommonTFLayerTest):
+    def _prepare_input(self, inputs_info):
+        # generate elements so that the input tensor may contain repeating elements
+        assert 'param_real:0' in inputs_info
+        assert 'param_imag:0' in inputs_info
+
+        input_shape = inputs_info['param_real:0']
+
+        inputs_data = {}
+        inputs_data['param_real:0'] = rng.integers(-10.0, 10.0, input_shape).astype(np.float32)
+        inputs_data['param_imag:0'] = rng.integers(-10.0, 10.0, input_shape).astype(np.float32)
+
+        return inputs_data
+
+    def create_expand_dims_complex_net(self, axis_dtype, input_shape, axis):
+        tf.compat.v1.reset_default_graph()
+        with tf.compat.v1.Session() as sess:
+            param_real = tf.compat.v1.placeholder(np.float32, input_shape, 'param_real')
+            param_imag = tf.compat.v1.placeholder(np.float32, input_shape, 'param_imag')
+
+            complex = tf.raw_ops.Complex(real=param_real, imag=param_imag)
+
+            axis = tf.constant(axis, dtype=axis_dtype)
+
+            result = tf.raw_ops.ExpandDims(input=complex, axis=axis)
+
+            tf.raw_ops.Real(input=result)
+            tf.raw_ops.Imag(input=result)
+
+            tf.compat.v1.global_variables_initializer()
+            tf_net = sess.graph_def
+
+        return tf_net, None
+
+    test_basic = [
+        dict(input_shape=[], axis=0),
+        dict(input_shape=[2, 3], axis=1),
+        dict(input_shape=[2, 3, 4], axis=-1),
+        dict(input_shape=[2, 6, 5], axis=-2),
+    ]
+
+    @pytest.mark.parametrize("axis_dtype", [np.int32, np.int64])
+    @pytest.mark.parametrize("op_args", test_basic)
+    @pytest.mark.nightly
+    @pytest.mark.precommit
+    def test_expand_dims_basic_complex(self, axis_dtype, op_args, ie_device, precision, ir_version, temp_dir, use_legacy_frontend):
+        self._test(*self.create_expand_dims_complex_net(axis_dtype, **op_args),
+                   ie_device, precision, ir_version, temp_dir=temp_dir,
+                   use_legacy_frontend=use_legacy_frontend)