Add dnspolicy deletion test

Signed-off-by: averevki <[email protected]>

testsuite/gateway/gateway_api/hostname.py

@@ -27,7 +27,7 @@ def __init__(self, hostname, tls_cert_getter: Callable[[], Certificate | bool] =
 
     def client(self, **kwargs) -> KuadrantClient:
         protocol = "http"
-        if self.tls_cert_getter is not None:
+        if self.tls_cert_getter is not None and self.tls_cert_getter() is not None:
             protocol = "https"
             kwargs.setdefault("verify", self.tls_cert_getter())
         return KuadrantClient(base_url=f"{protocol}://{self.hostname}", **kwargs)

testsuite/tests/singlecluster/gateway/dnspolicy/test_dnspolicy_removal.py

@@ -0,0 +1,46 @@
+"""Test that Gateway will behave properly after attached DNSPolicy is deleted"""
+
+from time import sleep
+
+import pytest
+
+from testsuite.gateway.gateway_api.gateway import KuadrantGateway
+
+pytestmark = [pytest.mark.kuadrant_only, pytest.mark.dnspolicy]
+
+
+@pytest.fixture(scope="module")
+def gateway(request, cluster, blame, wildcard_domain, module_label):
+    """Create gateway without TLS enabled"""
+    gw = KuadrantGateway.create_instance(cluster, blame("gw"), wildcard_domain, {"app": module_label}, tls=False)
+    request.addfinalizer(gw.delete)
+    gw.commit()
+    gw.wait_for_ready()
+    return gw
+
+
+@pytest.fixture(scope="module", autouse=True)
+def commit(request, route, dns_policy):  # pylint: disable=unused-argument
+    """Commits dnspolicy"""
+    request.addfinalizer(dns_policy.delete)
+    dns_policy.commit()
+    dns_policy.wait_for_ready()
+
+
+def test_dnspolicy_removal(gateway, dns_policy, client):
+    """
+    Test that Gateway will behave properly after attached DNSPolicy is deleted
+    - Verify that Gateway is affected by DNSPolicy and requests are successful
+    - Delete attached DNSPolicy
+    - Verify that Gateway is no longer affected by DNSPolicy and requests are failing
+    """
+    assert gateway.refresh().is_affected_by(dns_policy)
+    response = client.get("/get")
+    assert response.status_code == 200
+
+    dns_policy.delete()
+    sleep(60)  # wait for records deletion/ttl expiration from the previous request
+
+    assert not gateway.refresh().is_affected_by(dns_policy)
+    response = client.get("/get")
+    assert response.has_dns_error()