feat: add ticket comments attachments and export

backend/apps/tickets/tests/test_ticket_export.py

@@ -0,0 +1,49 @@
+from apps.audit.models import OperationAuditLog
+from apps.tickets.models import Ticket
+
+
+def test_add_comment_to_ticket(client, db):
+    ticket = Ticket.objects.create(ticket_no="TK202606300010", title="A", description="A")
+
+    response = client.post(
+        f"/api/tickets/{ticket.id}/comments",
+        data={
+            "content": "Checked logs",
+            "comment_type": "internal_note",
+            "visibility": "internal",
+        },
+        content_type="application/json",
+    )
+
+    assert response.status_code == 200
+    assert response.json()["content"] == "Checked logs"
+    assert ticket.comments.count() == 1
+
+
+def test_add_attachment_to_ticket(client, db):
+    ticket = Ticket.objects.create(ticket_no="TK202606300011", title="A", description="A")
+
+    response = client.post(
+        f"/api/tickets/{ticket.id}/attachments",
+        data={
+            "file_name": "error.log",
+            "mime_type": "text/plain",
+            "file_size": 123,
+            "storage_path": "tickets/TK202606300011/error.log",
+        },
+        content_type="application/json",
+    )
+
+    assert response.status_code == 200
+    assert response.json()["file_name"] == "error.log"
+
+
+def test_export_tickets_returns_csv_and_audit_log(client, db):
+    Ticket.objects.create(ticket_no="TK202606300012", title="Export me", description="A")
+
+    response = client.get("/api/tickets/export")
+
+    assert response.status_code == 200
+    assert response["content-type"].startswith("text/csv")
+    assert "TK202606300012" in response.content.decode()
+    assert OperationAuditLog.objects.filter(module="tickets", action="export").exists()