diff --git a/etl/hubspot/tests/test_abri_flow_triggers.py b/etl/hubspot/tests/test_abri_flow_triggers.py
index 0e7eb320b..e6f5631f6 100644
--- a/etl/hubspot/tests/test_abri_flow_triggers.py
+++ b/etl/hubspot/tests/test_abri_flow_triggers.py
@@ -2,6 +2,8 @@ from datetime import datetime, timezone
 from typing import Any, Dict
 import uuid
 
+import pytest
+
 from backend.app.db.models.hubspot_deal_data import HubspotDealData
 from etl.hubspot.hubspot_deal_differ import HubspotDealDiffer
 
@@ -187,6 +189,31 @@ def test_no_message_for_a_non_abri_deal() -> None:
     assert message is None
 
 
+def test_the_test_override_env_var_fires_a_deal_on_its_own_project_code(
+    monkeypatch: pytest.MonkeyPatch,
+) -> None:
+    # Arrange: a sandbox deal on its own project code, with the test override
+    # pointing the gate at that code so it fires like a production Abri deal.
+    monkeypatch.setenv("TEST_ABRI_PROJECT_CODE_OVERRIDE", "TEST-SANDBOX-CODE")
+    old_deal = make_old_deal(project_code="TEST-SANDBOX-CODE", confirmed_survey_date=None)
+    new_deal = make_new_deal(
+        project_code="TEST-SANDBOX-CODE", confirmed_survey_date="2026-06-24"
+    )
+
+    # Act
+    message = HubspotDealDiffer.check_abri_triggers_and_construct_message(
+        hubspot_deal_id=DEAL_ID,
+        new_deal=new_deal,
+        new_project=None,
+        new_listing=LISTING,
+        old_deal=old_deal,
+    )
+
+    # Assert
+    assert message is not None
+    assert message["flows"] == ["log_job"]
+
+
 def test_a_deal_crossing_into_abandonment_builds_an_abandon_job_message() -> None:
     # Arrange: attempts reach the threshold with a negative outcome, so the
     # deal crosses into the abandoned state and the abandon flow fires.