Add ip.py tests (#1075)

* tests for ip.py

* migrate to pytest

* Update asserts

* Update tests

---------

Co-authored-by: Arkadii Yakovets <arkadii.yakovets@owasp.org>

Author: pUrGe12

tests/core/test_ip.py

@@ -0,0 +1,110 @@
+import json
+from unittest.mock import patch
+
+from nettacker.core.ip import (
+    generate_ip_range,
+    get_ip_range,
+    is_single_ipv4,
+    is_ipv4_range,
+    is_ipv4_cidr,
+    is_single_ipv6,
+    is_ipv6_range,
+    is_ipv6_cidr,
+)
+
+
+class Responses:
+    get_ip_range_valid_response = {
+        "objects": {
+            "object": [
+                {
+                    "primary-key": {
+                        "attribute": [
+                            {"name": "inetnum", "value": "223.27.114.0 - 223.27.114.127"}
+                        ]
+                    }
+                }
+            ]
+        }
+    }
+
+    validate_ip_range = [f"223.27.114.{i}" for i in range(1, 127)]
+
+    get_ip_range_invalid_response = {
+        "link": {},
+        "errormessages": {
+            "errormessage": [
+                {
+                    "severity": "Error",
+                    "text": "ERROR:101: no entries found\n\nNo entries found in source %s.\n",
+                    "args": [{"value": "RIPE"}],
+                }
+            ]
+        },
+    }
+
+
+def test_generate_ip_range():
+    assert generate_ip_range("192.168.1.0/30") == [
+        "192.168.1.0",
+        "192.168.1.1",
+        "192.168.1.2",
+        "192.168.1.3",
+    ]
+    assert generate_ip_range("192.168.1.1-192.168.1.3") == [
+        "192.168.1.1",
+        "192.168.1.2",
+        "192.168.1.3",
+    ]
+
+
+@patch("requests.get")
+def test_get_ip_range(mock_get):
+    test_ip = "223.27.115.10"
+    invalid_test_ip = "223.27.115.10.21"
+
+    mock_get.return_value.content = json.dumps(Responses.get_ip_range_valid_response).encode(
+        "utf-8"
+    )
+    assert get_ip_range(test_ip) == Responses.validate_ip_range
+
+    mock_get.return_value.content = json.dumps(Responses.get_ip_range_invalid_response).encode(
+        "utf-8"
+    )
+    assert get_ip_range(invalid_test_ip) == [invalid_test_ip]
+
+
+def test_is_single_ipv4():
+    assert is_single_ipv4("127.0.0.1")
+    assert not is_single_ipv4("2001:0DC8:E004:0001:0000:0000:0000:F00A")
+    assert not is_single_ipv4("256.0.0.1")
+
+
+def test_is_ipv4_range():
+    assert is_ipv4_range("192.168.1.0/24")
+    assert not is_ipv4_range("127.0.0.1")
+    assert not is_ipv4_range("192.168.1.0/100")
+
+
+def test_is_ipv4_cidr():
+    assert is_ipv4_cidr("192.168.1.1-192.168.1.100")
+    assert not is_ipv4_cidr("192.168.1.1/24")
+    assert not is_ipv4_cidr("192.168.1.1-192.168.1.256")
+
+
+def test_is_single_ipv6():
+    assert is_single_ipv6("2001:0db8:85a3:0000:0000:8a2e:0370:7334")
+    assert not is_single_ipv6("127.0.0.1")
+    assert not is_single_ipv6("2001:db8:3333:4444:5555:6666:7777:88g8")
+
+
+def test_is_ipv6_range():
+    assert is_ipv6_range("2001:db8::1-2001:db8::100")
+    assert not is_ipv6_range("2001:db8::/64")
+    assert not is_ipv6_range("2001:db8::1-2001:db8::1g0")
+
+
+def test_is_ipv6_cidr():
+    assert is_ipv6_cidr("2001:db8:abcd:0012::/64")
+    assert not is_ipv6_cidr("2001:db8::/129")
+    assert not is_ipv6_cidr("2001:dg8:abcd:0012::/64")