docs: reorder & testing

integration/soft_delete_test.go

@@ -70,8 +70,12 @@ func TestSoftDelete_Cascade(t *testing.T) {
 	if lastErr == nil {
 		t.Fatalf("gateway accepted authenticated call after soft delete; expected rejection")
 	}
-	if !testenv.IsUnauthenticated(lastErr) {
-		t.Fatalf("post-delete status: expected Unauthenticated, got %v", lastErr)
+	// Gateway maps a revoked session to FailedPrecondition ("device
+	// session is revoked"); a session that vanished from the cache
+	// before the call lands as Unauthenticated. Either is a correct
+	// rejection.
+	if !testenv.IsFailedPrecondition(lastErr) && !testenv.IsUnauthenticated(lastErr) {
+		t.Fatalf("post-delete status: %v", lastErr)
 	}
 
 	// Geo cascade: counters for this user should be gone.