diff --git a/workspace-server/internal/bundle/bundle_helpers_test.go b/workspace-server/internal/bundle/bundle_helpers_test.go
index 9879570f..5bc5a248 100644
--- a/workspace-server/internal/bundle/bundle_helpers_test.go
+++ b/workspace-server/internal/bundle/bundle_helpers_test.go
@@ -45,9 +45,9 @@ func TestSplitLines_TrailingNewline(t *testing.T) {
 
 func TestSplitLines_Empty(t *testing.T) {
 	got := splitLines("")
-	want := []string{""}
-	if len(got) != len(want) {
-		t.Errorf("empty string should produce one empty-string element; got %v", got)
+	// An empty string should return a single-element slice containing ""
+	if len(got) != 1 || got[0] != "" {
+		t.Errorf("empty string should produce one empty-string element; got %v (len=%d)", got, len(got))
 	}
 }
 
diff --git a/workspace-server/internal/ws/hub_test.go b/workspace-server/internal/ws/hub_test.go
index 28732651..6416ab6f 100644
--- a/workspace-server/internal/ws/hub_test.go
+++ b/workspace-server/internal/ws/hub_test.go
@@ -50,6 +50,10 @@ func TestNewHub_WithAccessChecker(t *testing.T) {
 	if h.canCommunicate("ws-1", "ws-2") {
 		t.Error("canCommunicate should return false for different IDs")
 	}
+	// Verify the checker was invoked at least once
+	if !called {
+		t.Error("access checker was not called")
+	}
 }
 
 // ---------- safeSend ----------