updated the architecture

tests/test_validators.py

@@ -0,0 +1,50 @@
+import pytest
+from fastapi import HTTPException
+
+from app.utils.validators import validate_url
+
+
+def test_valid_https_url():
+    result = validate_url("https://example.com")
+    assert result == "https://example.com"
+
+
+def test_valid_http_url():
+    result = validate_url("http://example.com")
+    assert result == "http://example.com"
+
+
+def test_rejects_ftp_scheme():
+    with pytest.raises(HTTPException) as exc_info:
+        validate_url("ftp://example.com")
+    assert exc_info.value.status_code == 400
+
+
+def test_rejects_no_scheme():
+    with pytest.raises(HTTPException) as exc_info:
+        validate_url("example.com")
+    assert exc_info.value.status_code == 400
+
+
+def test_rejects_localhost():
+    with pytest.raises(HTTPException) as exc_info:
+        validate_url("http://localhost")
+    assert exc_info.value.status_code == 400
+
+
+def test_rejects_private_ip():
+    with pytest.raises(HTTPException) as exc_info:
+        validate_url("http://192.168.1.1")
+    assert exc_info.value.status_code == 400
+
+
+def test_rejects_loopback():
+    with pytest.raises(HTTPException) as exc_info:
+        validate_url("http://127.0.0.1")
+    assert exc_info.value.status_code == 400
+
+
+def test_rejects_unresolvable_host():
+    with pytest.raises(HTTPException) as exc_info:
+        validate_url("http://this-domain-does-not-exist-xyz123.com")
+    assert exc_info.value.status_code == 400