diff --git a/vehicle/2.0/default/tests/SubscriptionManager_test.cpp b/vehicle/2.0/default/tests/SubscriptionManager_test.cpp
index 19b11e6..171a692 100644
--- a/vehicle/2.0/default/tests/SubscriptionManager_test.cpp
+++ b/vehicle/2.0/default/tests/SubscriptionManager_test.cpp
@@ -19,9 +19,6 @@
 
 #include <gtest/gtest.h>
 
-#include <vehicle_hal_manager/VehiclePropConfigIndex.h>
-#include <VehicleHal.h>
-#include <vehicle_hal_manager/VehicleHalManager.h>
 #include "vehicle_hal_manager/SubscriptionManager.h"
 
 #include "VehicleHalTestUtils.h"
diff --git a/vehicle/2.0/default/tests/VehicleHalManager_test.cpp b/vehicle/2.0/default/tests/VehicleHalManager_test.cpp
index 6ef1205..d06f6f4 100644
--- a/vehicle/2.0/default/tests/VehicleHalManager_test.cpp
+++ b/vehicle/2.0/default/tests/VehicleHalManager_test.cpp
@@ -17,13 +17,11 @@
 #include <unordered_map>
 #include <iostream>
 
+#include <utils/SystemClock.h>
+
 #include <gtest/gtest.h>
 
-#include <vehicle_hal_manager/VehiclePropConfigIndex.h>
-#include <VehicleHal.h>
-#include <vehicle_hal_manager/VehicleHalManager.h>
-#include <utils/SystemClock.h>
-#include "vehicle_hal_manager/SubscriptionManager.h"
+#include "vehicle_hal_manager/VehicleHalManager.h"
 
 #include "VehicleHalTestUtils.h"
 
@@ -429,11 +427,11 @@
     clients.addOrUpdate(c2);
     ASSERT_EQ(2u, clients.size());
     ASSERT_FALSE(clients.isEmpty());
-    ASSERT_GE(0, clients.indexOf(c1));
-    ASSERT_GE(0, clients.remove(c1));
-    ASSERT_GE(0, clients.indexOf(c1));
-    ASSERT_GE(0, clients.remove(c1));
-    ASSERT_GE(0, clients.remove(c2));
+    ASSERT_LE(0, clients.indexOf(c1));
+    ASSERT_LE(0, clients.remove(c1));
+    ASSERT_GT(0, clients.indexOf(c1));  // c1 was already removed
+    ASSERT_GT(0, clients.remove(c1));   // attempt to remove c1 again
+    ASSERT_LE(0, clients.remove(c2));
 
     ASSERT_TRUE(clients.isEmpty());
 }
diff --git a/vehicle/2.0/default/tests/VehicleObjectPool_test.cpp b/vehicle/2.0/default/tests/VehicleObjectPool_test.cpp
index 88b1be0..135f9fa 100644
--- a/vehicle/2.0/default/tests/VehicleObjectPool_test.cpp
+++ b/vehicle/2.0/default/tests/VehicleObjectPool_test.cpp
@@ -18,9 +18,10 @@
 
 #include <gtest/gtest.h>
 
-#include <vehicle_hal_manager/VehicleObjectPool.h>
 #include <utils/SystemClock.h>
 
+#include "vehicle_hal_manager/VehicleObjectPool.h"
+
 namespace android {
 namespace hardware {
 namespace vehicle {
diff --git a/vehicle/2.0/default/tests/VehiclePropConfigIndex_test.cpp b/vehicle/2.0/default/tests/VehiclePropConfigIndex_test.cpp
index aae7e62..28cdcbb 100644
--- a/vehicle/2.0/default/tests/VehiclePropConfigIndex_test.cpp
+++ b/vehicle/2.0/default/tests/VehiclePropConfigIndex_test.cpp
@@ -16,7 +16,7 @@
 
 #include <gtest/gtest.h>
 
-#include <vehicle_hal_manager/VehiclePropConfigIndex.h>
+#include "vehicle_hal_manager/VehiclePropConfigIndex.h"
 
 #include "VehicleHalTestUtils.h"