✅ [#74] Add tests for the admin configuration pages

Added a test to ensure that the certificates management link is
displayed.

tests/test_admin.py

@@ -0,0 +1,36 @@
+from django.test import Client
+from django.urls import reverse
+from django.utils.translation import gettext as _
+
+import pytest
+from pytest_django.asserts import assertContains
+
+from digid_eherkenning.models import DigidConfiguration, EherkenningConfiguration
+
+
+@pytest.mark.django_db
+def test_digid_configuration_admin_certificates_link(
+    admin_client: Client,
+    digid_config: DigidConfiguration,
+):
+    url = reverse("admin:digid_eherkenning_digidconfiguration_change", args=(1,))
+
+    response = admin_client.get(url)
+
+    assert response.status_code == 200
+    assertContains(response, _("certificates"))
+    assertContains(response, _("Manage ({count})").format(count=1))
+
+
+@pytest.mark.django_db
+def test_eherkenning_configuration_admin_certificates_link(
+    admin_client: Client,
+    eherkenning_config: EherkenningConfiguration,
+):
+    url = reverse("admin:digid_eherkenning_eherkenningconfiguration_change", args=(1,))
+
+    response = admin_client.get(url)
+
+    assert response.status_code == 200
+    assertContains(response, _("certificates"))
+    assertContains(response, _("Manage ({count})").format(count=1))