diff --git a/test/tap/tests/unit/plugin_config_unit-t.cpp b/test/tap/tests/unit/plugin_config_unit-t.cpp
index 6a8cb3d6e..81f0d47ac 100644
--- a/test/tap/tests/unit/plugin_config_unit-t.cpp
+++ b/test/tap/tests/unit/plugin_config_unit-t.cpp
@@ -38,7 +38,9 @@ void make_log_path() {
 
 void clear_log() {
 	if (g_log_path.empty()) return;
-	std::ofstream(g_log_path, std::ios::trunc);
+	// See plugin_manager_unit-t.cpp for the SonarCloud rationale.
+	std::ofstream truncate_handle(g_log_path, std::ios::trunc);
+	(void)truncate_handle;
 }
 
 std::string read_log() {
diff --git a/test/tap/tests/unit/plugin_lifecycle_unit-t.cpp b/test/tap/tests/unit/plugin_lifecycle_unit-t.cpp
index e8a6c74f3..5830455ab 100644
--- a/test/tap/tests/unit/plugin_lifecycle_unit-t.cpp
+++ b/test/tap/tests/unit/plugin_lifecycle_unit-t.cpp
@@ -48,7 +48,9 @@ void make_log_path() {
 
 void clear_log() {
 	if (g_log_path.empty()) return;
-	std::ofstream(g_log_path, std::ios::trunc);
+	// See plugin_manager_unit-t.cpp for the SonarCloud rationale.
+	std::ofstream truncate_handle(g_log_path, std::ios::trunc);
+	(void)truncate_handle;
 }
 
 std::string read_log() {
diff --git a/test/tap/tests/unit/plugin_manager_unit-t.cpp b/test/tap/tests/unit/plugin_manager_unit-t.cpp
index f01acdb67..4ebe11dc8 100644
--- a/test/tap/tests/unit/plugin_manager_unit-t.cpp
+++ b/test/tap/tests/unit/plugin_manager_unit-t.cpp
@@ -35,7 +35,13 @@ void make_log_path() {
 
 void clear_log() {
 	if (g_log_path.empty()) return;
-	std::ofstream(g_log_path, std::ios::trunc);
+	// Truncate via constructor + immediate destructor.  The named local
+	// variable is intentional: SonarCloud's "Name this unused temporary
+	// object" rule does not recognise the truncate-via-temporary idiom,
+	// and the cosmetic name silences the false positive without changing
+	// behaviour.
+	std::ofstream truncate_handle(g_log_path, std::ios::trunc);
+	(void)truncate_handle;
 }
 
 std::string read_log() {