Remove regexes from is_local()

feeds/tests.py

@@ -1 +1,51 @@
 """https://docs.djangoproject.com/en/5.0/topics/testing/."""
+
+from __future__ import annotations
+
+import random
+from typing import TYPE_CHECKING
+
+from django.test import Client, TestCase
+
+from feeds.validator import is_ip, validate_scheme
+
+if TYPE_CHECKING:
+    from django.http import HttpResponse
+
+
+class TestHomePage(TestCase):
+    """Test case for the home page view."""
+
+    def setUp(self: TestHomePage) -> None:
+        """Set up the test client for the test case."""
+        self.client = Client()
+
+    def test_home_page(self: TestHomePage) -> None:
+        """Test that a GET request to the home page returns a 200 status code."""
+        response: HttpResponse = self.client.get("/")
+        assert response.status_code == 200
+
+
+class TestValidator(TestCase):
+    """Test case for the validator."""
+
+    def setUp(self: TestValidator) -> None:
+        """Set up the test client for the test case."""
+        self.client = Client()
+
+    def test_is_ip(self: TestValidator) -> None:
+        """Test that is_ip() returns True for a valid IP address."""
+        # Test random IP address
+        random_ip: str = ".".join(str(random.randint(0, 255)) for _ in range(4))  # noqa: S311
+        assert is_ip(feed_url=random_ip)
+
+        # Test domain name
+        assert not is_ip(feed_url="https://example.com")
+
+    def test_validate_scheme(self: TestValidator) -> None:
+        """Test that validate_scheme() returns True for a valid scheme."""
+        assert validate_scheme(feed_url="https://example.com")
+        assert validate_scheme(feed_url="http://example.com")
+        assert not validate_scheme(feed_url="ftp://example.com")
+        assert not validate_scheme(feed_url="example.com")
+        assert not validate_scheme(feed_url="127.0.0.1")