Implement 'investigating' email templates and tigger email send on admin domain application save, status change to investidated.

src/registrar/tests/test_admin.py

@@ -0,0 +1,120 @@
+from django.test import TestCase, RequestFactory
+from django.contrib.admin.sites import AdminSite
+from registrar.admin import DomainApplicationAdmin
+from django.contrib.auth import get_user_model
+from registrar.models import Contact, DraftDomain, Website, DomainApplication, User
+
+from django.conf import settings
+from unittest.mock import MagicMock, ANY
+import boto3_mocking  # type: ignore
+
+
+class TestDomainApplicationAdmin(TestCase):
+    def setUp(self):
+        self.site = AdminSite()
+        self.factory = RequestFactory()
+
+    def _completed_application(
+        self,
+        has_other_contacts=True,
+        has_current_website=True,
+        has_alternative_gov_domain=True,
+        has_type_of_work=True,
+        has_anything_else=True,
+    ):
+        """A completed domain application."""
+        user = get_user_model().objects.create(username="username")
+        ao, _ = Contact.objects.get_or_create(
+            first_name="Testy",
+            last_name="Tester",
+            title="Chief Tester",
+            email="testy@town.com",
+            phone="(555) 555 5555",
+        )
+        domain, _ = DraftDomain.objects.get_or_create(name="city.gov")
+        alt, _ = Website.objects.get_or_create(website="city1.gov")
+        current, _ = Website.objects.get_or_create(website="city.com")
+        you, _ = Contact.objects.get_or_create(
+            first_name="Testy you",
+            last_name="Tester you",
+            title="Admin Tester",
+            email="mayor@igorville.gov",
+            phone="(555) 555 5556",
+        )
+        other, _ = Contact.objects.get_or_create(
+            first_name="Testy2",
+            last_name="Tester2",
+            title="Another Tester",
+            email="testy2@town.com",
+            phone="(555) 555 5557",
+        )
+        domain_application_kwargs = dict(
+            organization_type="federal",
+            federal_type="executive",
+            purpose="Purpose of the site",
+            is_policy_acknowledged=True,
+            organization_name="Testorg",
+            address_line1="address 1",
+            address_line2="address 2",
+            state_territory="NY",
+            zipcode="10002",
+            authorizing_official=ao,
+            requested_domain=domain,
+            submitter=you,
+            creator=user,
+        )
+        if has_type_of_work:
+            domain_application_kwargs["type_of_work"] = "e-Government"
+        if has_anything_else:
+            domain_application_kwargs["anything_else"] = "There is more"
+
+        application, _ = DomainApplication.objects.get_or_create(
+            **domain_application_kwargs
+        )
+
+        if has_other_contacts:
+            application.other_contacts.add(other)
+        if has_current_website:
+            application.current_websites.add(current)
+        if has_alternative_gov_domain:
+            application.alternative_domains.add(alt)
+
+        return application
+
+    @boto3_mocking.patching
+    def test_save_model_sends_email_on_property_change(self):
+        # make sure there is no user with this email
+        EMAIL = "mayor@igorville.gov"
+        User.objects.filter(email=EMAIL).delete()
+
+        mock_client = MagicMock()
+        mock_client_instance = mock_client.return_value
+
+        with boto3_mocking.clients.handler_for("sesv2", mock_client):
+            # Create a sample application
+            application = self._completed_application()
+
+            # Create a mock request
+            request = self.factory.post(
+                "/admin/registrar/domainapplication/{}/change/".format(application.pk)
+            )
+
+            # Create an instance of the model admin
+            model_admin = DomainApplicationAdmin(DomainApplication, self.site)
+
+            # Modify the application's property
+            application.status = "investigating"
+
+            # Use the model admin's save_model method
+            model_admin.save_model(request, application, form=None, change=True)
+
+        # Assert that the email was sent
+
+        mock_client_instance.send_email.assert_called_once_with(
+            FromEmailAddress=settings.DEFAULT_FROM_EMAIL,
+            Destination={"ToAddresses": [EMAIL]},
+            Content=ANY,
+        )
+
+        # Cleanup
+        application.delete()