Increase platform abstraction cohesion

core/tests/test_compose_send_capabilities.py

@@ -0,0 +1,67 @@
+from __future__ import annotations
+
+import json
+from unittest.mock import AsyncMock, patch
+
+from django.test import TestCase
+from django.urls import reverse
+
+from core.models import User
+
+
+class ComposeSendCapabilityTests(TestCase):
+    def setUp(self):
+        self.user = User.objects.create_user("compose-send", "send@example.com", "pw")
+        self.client.force_login(self.user)
+
+    @patch("core.views.compose.transport.enqueue_runtime_command")
+    @patch("core.views.compose.transport.send_message_raw", new_callable=AsyncMock)
+    def test_unsupported_send_fails_fast_without_dispatch(
+        self,
+        mocked_send_message_raw,
+        mocked_enqueue_runtime_command,
+    ):
+        response = self.client.post(
+            reverse("compose_send"),
+            {
+                "service": "xmpp",
+                "identifier": "person@example.com",
+                "text": "hello",
+                "failsafe_arm": "1",
+                "failsafe_confirm": "1",
+            },
+        )
+
+        self.assertEqual(200, response.status_code)
+        payload = json.loads(response.headers["HX-Trigger"])["composeSendResult"]
+        self.assertFalse(payload["ok"])
+        self.assertEqual("warning", payload["level"])
+        self.assertIn("Send not supported:", payload["message"])
+        mocked_send_message_raw.assert_not_awaited()
+        mocked_enqueue_runtime_command.assert_not_called()
+
+    def test_compose_page_displays_send_disabled_reason_for_unsupported_service(self):
+        response = self.client.get(
+            reverse("compose_page"),
+            {
+                "service": "xmpp",
+                "identifier": "person@example.com",
+            },
+        )
+
+        self.assertEqual(200, response.status_code)
+        content = response.content.decode("utf-8")
+        self.assertIn("Send disabled:", content)
+        self.assertIn("compose-send-btn", content)
+
+    def test_compose_page_uses_humanized_browser_title(self):
+        response = self.client.get(
+            reverse("compose_page"),
+            {
+                "service": "signal",
+                "identifier": "+15551230000",
+            },
+        )
+
+        self.assertEqual(200, response.status_code)
+        self.assertContains(response, "<title>Compose Page · GIA</title>", html=False)