diff --git a/audio/aidl/default/Module.cpp b/audio/aidl/default/Module.cpp
index 961ee84..1bf7321 100644
--- a/audio/aidl/default/Module.cpp
+++ b/audio/aidl/default/Module.cpp
@@ -424,6 +424,7 @@
 }
 
 ndk::ScopedAStatus Module::setAudioPatch(const AudioPatch& in_requested, AudioPatch* _aidl_return) {
+    LOG(DEBUG) << __func__ << ": requested patch " << in_requested.toString();
     if (in_requested.sourcePortConfigIds.empty()) {
         LOG(ERROR) << __func__ << ": requested patch has empty sources list";
         return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
diff --git a/audio/aidl/default/main.cpp b/audio/aidl/default/main.cpp
index 0de6047..aeb9983 100644
--- a/audio/aidl/default/main.cpp
+++ b/audio/aidl/default/main.cpp
@@ -25,20 +25,22 @@
 using aidl::android::hardware::audio::core::Module;
 
 int main() {
+    // This is a debug implementation, always enable debug logging.
+    android::base::SetMinimumLogSeverity(::android::base::DEBUG);
     ABinderProcess_setThreadPoolMaxThreadCount(16);
 
-    // make the default config service
+    // Make the default config service
     auto config = ndk::SharedRefBase::make<Config>();
     const std::string configName = std::string() + Config::descriptor + "/default";
     binder_status_t status =
             AServiceManager_addService(config->asBinder().get(), configName.c_str());
-    CHECK(status == STATUS_OK);
+    CHECK_EQ(STATUS_OK, status);
 
-    // make the default module
+    // Make the default module
     auto moduleDefault = ndk::SharedRefBase::make<Module>();
     const std::string moduleDefaultName = std::string() + Module::descriptor + "/default";
     status = AServiceManager_addService(moduleDefault->asBinder().get(), moduleDefaultName.c_str());
-    CHECK(status == STATUS_OK);
+    CHECK_EQ(STATUS_OK, status);
 
     ABinderProcess_joinThreadPool();
     return EXIT_FAILURE;  // should not reach
diff --git a/audio/aidl/vts/ModuleConfig.cpp b/audio/aidl/vts/ModuleConfig.cpp
index 36b3b1b..0e76d9a 100644
--- a/audio/aidl/vts/ModuleConfig.cpp
+++ b/audio/aidl/vts/ModuleConfig.cpp
@@ -251,15 +251,15 @@
     std::string result;
     result.append("Ports: ");
     result.append(android::internal::ToString(mPorts));
-    result.append("Initial configs: ");
+    result.append("\nInitial configs: ");
     result.append(android::internal::ToString(mInitialConfigs));
-    result.append("Attached sink device ports: ");
+    result.append("\nAttached sink device ports: ");
     result.append(android::internal::ToString(mAttachedSinkDevicePorts));
-    result.append("Attached source device ports: ");
+    result.append("\nAttached source device ports: ");
     result.append(android::internal::ToString(mAttachedSourceDevicePorts));
-    result.append("External device ports: ");
+    result.append("\nExternal device ports: ");
     result.append(android::internal::ToString(mExternalDevicePorts));
-    result.append("Routes: ");
+    result.append("\nRoutes: ");
     result.append(android::internal::ToString(mRoutes));
     return result;
 }
diff --git a/audio/aidl/vts/VtsHalAudioCoreTargetTest.cpp b/audio/aidl/vts/VtsHalAudioCoreTargetTest.cpp
index 6be4e2f..6c91d24 100644
--- a/audio/aidl/vts/VtsHalAudioCoreTargetTest.cpp
+++ b/audio/aidl/vts/VtsHalAudioCoreTargetTest.cpp
@@ -138,12 +138,18 @@
     return false;
 }
 
+// All 'With*' classes are move-only because they are associated with some
+// resource or state of a HAL module.
 class WithDebugFlags {
   public:
+    static WithDebugFlags createNested(const WithDebugFlags& parent) {
+        return WithDebugFlags(parent.mFlags);
+    }
+
     WithDebugFlags() {}
     explicit WithDebugFlags(const ModuleDebug& initial) : mInitial(initial), mFlags(initial) {}
-    explicit WithDebugFlags(const WithDebugFlags& initial)
-        : mInitial(initial.mFlags), mFlags(initial.mFlags) {}
+    WithDebugFlags(const WithDebugFlags&) = delete;
+    WithDebugFlags& operator=(const WithDebugFlags&) = delete;
     ~WithDebugFlags() {
         if (mModule != nullptr) {
             ScopedAStatus status = mModule->setModuleDebug(mInitial);
@@ -170,6 +176,8 @@
   public:
     WithAudioPortConfig() {}
     explicit WithAudioPortConfig(const AudioPortConfig& config) : mInitialConfig(config) {}
+    WithAudioPortConfig(const WithAudioPortConfig&) = delete;
+    WithAudioPortConfig& operator=(const WithAudioPortConfig&) = delete;
     ~WithAudioPortConfig() {
         if (mModule != nullptr) {
             ScopedAStatus status = mModule->resetAudioPortConfig(getId());
@@ -326,6 +334,8 @@
     explicit WithDevicePortConnectedState(const AudioPort& idAndData) : mIdAndData(idAndData) {}
     WithDevicePortConnectedState(const AudioPort& id, const AudioDeviceAddress& address)
         : mIdAndData(setAudioPortAddress(id, address)) {}
+    WithDevicePortConnectedState(const WithDevicePortConnectedState&) = delete;
+    WithDevicePortConnectedState& operator=(const WithDevicePortConnectedState&) = delete;
     ~WithDevicePortConnectedState() {
         if (mModule != nullptr) {
             ScopedAStatus status = mModule->disconnectExternalDevice(getId());
@@ -362,6 +372,8 @@
   public:
     WithStream() {}
     explicit WithStream(const AudioPortConfig& portConfig) : mPortConfig(portConfig) {}
+    WithStream(const WithStream&) = delete;
+    WithStream& operator=(const WithStream&) = delete;
     ~WithStream() {
         if (mStream != nullptr) {
             ScopedAStatus status = mStream->close();
@@ -421,6 +433,8 @@
     WithAudioPatch() {}
     WithAudioPatch(const AudioPortConfig& srcPortConfig, const AudioPortConfig& sinkPortConfig)
         : mSrcPortConfig(srcPortConfig), mSinkPortConfig(sinkPortConfig) {}
+    WithAudioPatch(const WithAudioPatch&) = delete;
+    WithAudioPatch& operator=(const WithAudioPatch&) = delete;
     ~WithAudioPatch() {
         if (mModule != nullptr && mPatch.id != 0) {
             ScopedAStatus status = mModule->resetAudioPatch(mPatch.id);
@@ -655,6 +669,12 @@
     }
 }
 
+TEST_P(AudioCoreModule, SetUpModuleConfig) {
+    ASSERT_NO_FATAL_FAILURE(SetUpModuleConfig());
+    // Send the module config to logcat to facilitate failures investigation.
+    LOG(INFO) << "SetUpModuleConfig: " << moduleConfig->toString();
+}
+
 // Verify that HAL module reports for a connected device port at least one non-dynamic profile,
 // that is, a profile with actual supported configuration.
 // Note: This test relies on simulation of external device connections by the HAL module.
@@ -882,7 +902,7 @@
         GTEST_SKIP() << "No external devices in the module.";
     }
     AudioPort ignored;
-    WithDebugFlags doNotSimulateConnections(debug);
+    WithDebugFlags doNotSimulateConnections = WithDebugFlags::createNested(debug);
     doNotSimulateConnections.flags().simulateDeviceConnections = false;
     ASSERT_NO_FATAL_FAILURE(doNotSimulateConnections.SetUp(module.get()));
     for (const auto& port : ports) {
@@ -1134,9 +1154,8 @@
                     ScopedAStatus status = stream.SetUpNoChecks(module.get());
                     EXPECT_EQ(EX_ILLEGAL_STATE, status.getExceptionCode())
                             << status << " open" << direction(true)
-                            << "Stream"
-                               " returned for port config ID "
-                            << stream.getPortId() << ", maxOpenStreamCount is " << maxStreamCount;
+                            << "Stream returned for port config ID " << stream.getPortId()
+                            << ", maxOpenStreamCount is " << maxStreamCount;
                 }
             }
         }
@@ -1331,11 +1350,12 @@
         }
         for (const auto& srcSinkGroup : srcSinkGroups) {
             const auto& route = srcSinkGroup.first;
-            std::vector<WithAudioPatch> patches;
+            std::vector<std::unique_ptr<WithAudioPatch>> patches;
             for (const auto& srcSink : srcSinkGroup.second) {
                 if (!route.isExclusive) {
-                    patches.emplace_back(srcSink.first, srcSink.second);
-                    EXPECT_NO_FATAL_FAILURE(patches[patches.size() - 1].SetUp(module.get()));
+                    patches.push_back(
+                            std::make_unique<WithAudioPatch>(srcSink.first, srcSink.second));
+                    EXPECT_NO_FATAL_FAILURE(patches[patches.size() - 1]->SetUp(module.get()));
                 } else {
                     WithAudioPatch patch(srcSink.first, srcSink.second);
                     EXPECT_NO_FATAL_FAILURE(patch.SetUp(module.get()));
@@ -1423,8 +1443,25 @@
                          android::PrintInstanceNameToString);
 GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(AudioModulePatch);
 
+class TestExecutionTracer : public ::testing::EmptyTestEventListener {
+  public:
+    void OnTestStart(const ::testing::TestInfo& test_info) override {
+        TraceTestState("Started", test_info);
+    }
+
+    void OnTestEnd(const ::testing::TestInfo& test_info) override {
+        TraceTestState("Completed", test_info);
+    }
+
+  private:
+    static void TraceTestState(const std::string& state, const ::testing::TestInfo& test_info) {
+        LOG(INFO) << state << " " << test_info.test_suite_name() << "::" << test_info.name();
+    }
+};
+
 int main(int argc, char** argv) {
     ::testing::InitGoogleTest(&argc, argv);
+    ::testing::UnitTest::GetInstance()->listeners().Append(new TestExecutionTracer());
     ABinderProcess_setThreadPoolMaxThreadCount(1);
     ABinderProcess_startThreadPool();
     return RUN_ALL_TESTS();