diff --git a/docs/drivers/FOCAS-Test-Fixture.md b/docs/drivers/FOCAS-Test-Fixture.md
index b5e1a690..4cda662c 100644
--- a/docs/drivers/FOCAS-Test-Fixture.md
+++ b/docs/drivers/FOCAS-Test-Fixture.md
@@ -140,8 +140,8 @@ Or use `scripts/integration/run-focas.ps1` which wraps compose up / test
   — collection fixture + mock admin API client
 - `tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.IntegrationTests/Series/WireBackendTests.cs`
   — fixed-tree end-to-end tests (identity / axes / spindle / program / timers)
-- `tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.IntegrationTests/Series/WireBackendTests.cs`
-  — pure-wire-backend end-to-end tests
+- `tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.IntegrationTests/Series/WireBackendCoverageTests.cs`
+  — broader wire-backend coverage: PARAM / MACRO / PMC reads, `DiscoverAsync`, `SubscribeAsync`, `IAlarmSource` raise + clear, `IHostConnectivityProbe`
 - `tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.Tests/FakeFocasClient.cs` —
   in-process unit fake
 - `src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.FOCAS/Wire/WireFocasClient.cs` — the