unit test for 'endpoint.py'

Signed-off-by: mukundkumarjha <mukundiiitg@gmail.com>

Author: mukundkumarjha

CHANGELOG.md

@@ -7,6 +7,7 @@ This changelog is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.
 ## [Unreleased]
 
 ### Added
+- Added unit test for 'endpoint.py' to increase coverage. 
 - Automated assignment guard for `advanced` issues; requires completion of at least one `good first issue` and one `intermediate` issue before assignment (exempts maintainers, committers, and triage members). (#1142)
 - Added Hbar object support for TransferTransaction HBAR transfers:
   - Methods now accept `Union[int, Hbar]` for amount parameters with immediate normalization to tinybars

tests/unit/endpoint_test.py

@@ -0,0 +1,75 @@
+import pytest
+from unittest.mock import MagicMock
+from src.hiero_sdk_python.address_book.endpoint import Endpoint
+
+pytestmark = pytest.mark.unit
+
+def test_getter_setter():
+
+    ''' Test for Endpoint constructor'''
+
+    endpoint = Endpoint(address=None, port=None, domain_name=None)
+    endpoint.set_address(b'127.0.1.1')
+    endpoint.set_port(77777)
+    endpoint.set_domain_name("redpanda.com")
+
+    assert endpoint.get_address() == b'127.0.1.1'
+    assert endpoint.get_port() == 77777
+    assert endpoint.get_domain_name() == "redpanda.com"
+
+@pytest.mark.parametrize("input_port, expected_port", [
+    (0, 50211),      
+    (50111, 50211),  
+    (80, 80)         
+])
+
+def test_from_proto_port_mapping(input_port, expected_port):
+
+    ''' Tests the logic that converts a Protobuf ServiceEndpoint into an Endpoint object.'''
+    
+    mock_proto = MagicMock()
+    mock_proto.port = input_port
+    mock_proto.ipAddressV4 = b"127.0.1.1"
+    mock_proto.domain_name = "redpanda.com"
+    
+    endpoint = Endpoint._from_proto(mock_proto)
+    assert endpoint.get_port() == expected_port
+
+def test_to_proto():
+
+    '''Verifies that an Endpoint instance can be correctly serialized back into 
+    a Protobuf ServiceEndpoint object with all fields intact.'''
+
+    endpoint = Endpoint(address=b'127.0.1.1', port=77777, domain_name="redpanda.com")
+    proto = endpoint._to_proto()
+    assert proto.ipAddressV4 == b'127.0.1.1'
+    assert proto.port == 77777
+    assert proto.domain_name == "redpanda.com"
+
+def test_str():
+
+    ''' Tests the human-readable string representation of the Endpoint. '''
+
+    endpoint = Endpoint(address=b'127.0.1.1', port=77777, domain_name="redpanda.com")
+    assert str(endpoint) == '127.0.1.1:77777'
+
+def test_from_dict_error():
+
+    '''Validates 'Guard Clause' error handling'''
+    
+    invalid_data = {"port": 77777}
+    with pytest.raises(ValueError, match="JSON data must contain"):
+        Endpoint.from_dict(invalid_data)
+
+def test_from_dict_success():
+    ''' Tests successful creation of an Endpoint from a dictionary (JSON format) '''
+    data = {
+        "ip_address_v4": "127.0.0.1",
+        "port": 77777,
+        "domain_name": "redpanda.com"
+    }
+    endpoint = Endpoint.from_dict(data)
+    
+    assert endpoint.get_address() == b"127.0.0.1"
+    assert endpoint.get_port() == 77777
+    assert endpoint.get_domain_name() == "redpanda.com"