diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0e54c46..4d6bcf6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -32,7 +32,7 @@ users enter any string (e.g. `openai/gpt-5.4`, `deepseek/deepseek-r2`, or any
 provider-prefixed ID) and press Enter or click + to use it immediately.
 i18n keys added to en, es, zh.
 
-- Total tests: TBD (was 1117)
+- Total tests: 1130 (was 1117)
 
 ## [v0.50.41] feat(ui): render MEDIA: images inline in web UI chat (fixes #450)
 
diff --git a/TESTING.md b/TESTING.md
index 8b883ad..b80b22a 100644
--- a/TESTING.md
+++ b/TESTING.md
@@ -8,7 +8,7 @@
 > Prerequisites: SSH tunnel is active on port 8787. Open http://localhost:8787 in browser.
 > Server health check: curl http://127.0.0.1:8787/health should return {"status":"ok"}.
 >
-> Automated tests: 1117 total (1117 passing, 0 known failures). Includes onboarding coverage for bootstrap/static wizard presence, real provider config persistence (`config.yaml` + `.env`), the `/api/onboarding/*` backend, and the onboarding skip/existing-config guard.
+> Automated tests: 1130 total (1130 passing, 0 known failures). Includes onboarding coverage for bootstrap/static wizard presence, real provider config persistence (`config.yaml` + `.env`), the `/api/onboarding/*` backend, and the onboarding skip/existing-config guard.
 > Run: `pytest tests/ -v --timeout=60`
 
 ---
diff --git a/tests/test_sprint42.py b/tests/test_sprint42.py
index 9db1972..465fdba 100644
--- a/tests/test_sprint42.py
+++ b/tests/test_sprint42.py
@@ -17,6 +17,19 @@ REPO_ROOT = pathlib.Path(__file__).parent.parent
 STREAMING_PY = (REPO_ROOT / "api" / "streaming.py").read_text()
 
 
+# ── Shared helpers for sprint-42 additional tests ────────────────────────────
+
+REPO = REPO_ROOT  # alias used by #427 tests
+_SESSIONS_JS = REPO_ROOT / 'static' / 'sessions.js'
+_STREAMING_PY = REPO_ROOT / 'api' / 'streaming.py'
+_MESSAGES_JS = REPO_ROOT / 'static' / 'messages.js'
+_UI_JS = REPO_ROOT / 'static' / 'ui.js'
+
+def _read_sessions_js():
+    return _SESSIONS_JS.read_text(encoding='utf-8')
+
+# ─────────────────────────────────────────────────────────────────────────────
+
 class TestSessionDBInjection(unittest.TestCase):
     """Verify SessionDB is initialized and passed to AIAgent in streaming.py."""