diff --git a/libutils/tests/Android.bp b/libutils/tests/Android.bp
index ec6b67f21..f81943da4 100644
--- a/libutils/tests/Android.bp
+++ b/libutils/tests/Android.bp
@@ -18,33 +18,43 @@
 
 cc_test {
     name: "libutils_tests",
+    host_supported: true,
 
     srcs: [
-        "BlobCache_test.cpp",
         "BitSet_test.cpp",
         "Looper_test.cpp",
         "LruCache_test.cpp",
         "RefBase_test.cpp",
         "String8_test.cpp",
         "StrongPointer_test.cpp",
-        "SystemClock_test.cpp",
         "Unicode_test.cpp",
         "Vector_test.cpp",
     ],
 
-    shared_libs: [
-        "libz",
-        "liblog",
-        "libcutils",
-        "libutils",
-    ],
-}
+    target: {
+        android: {
+            srcs: [
+                "BlobCache_test.cpp",
+                "SystemClock_test.cpp",
+            ],
+            shared_libs: [
+                "libz",
+                "liblog",
+                "libcutils",
+                "libutils",
+            ],
+        },
+        host: {
+            static_libs: [
+                "libutils",
+                "liblog",
+            ],
+        },
+    },
 
-cc_test_host {
-    name: "libutils_tests_host",
-    srcs: ["Vector_test.cpp"],
-    static_libs: [
-        "libutils",
-        "liblog",
+    cflags: [
+        "-Wall",
+        "-Wextra",
+        "-Werror",
     ],
 }
diff --git a/libutils/tests/StrongPointer_test.cpp b/libutils/tests/StrongPointer_test.cpp
index 323a6f20a..153cf9683 100644
--- a/libutils/tests/StrongPointer_test.cpp
+++ b/libutils/tests/StrongPointer_test.cpp
@@ -21,13 +21,13 @@
 
 using namespace android;
 
-class Foo : public LightRefBase<Foo> {
+class SPFoo : public LightRefBase<SPFoo> {
 public:
-    explicit Foo(bool* deleted_check) : mDeleted(deleted_check) {
+    explicit SPFoo(bool* deleted_check) : mDeleted(deleted_check) {
         *mDeleted = false;
     }
 
-    ~Foo() {
+    ~SPFoo() {
         *mDeleted = true;
     }
 private:
@@ -36,13 +36,13 @@ private:
 
 TEST(StrongPointer, move) {
     bool isDeleted;
-    Foo* foo = new Foo(&isDeleted);
+    SPFoo* foo = new SPFoo(&isDeleted);
     ASSERT_EQ(0, foo->getStrongCount());
     ASSERT_FALSE(isDeleted) << "Already deleted...?";
-    sp<Foo> sp1(foo);
+    sp<SPFoo> sp1(foo);
     ASSERT_EQ(1, foo->getStrongCount());
     {
-        sp<Foo> sp2 = std::move(sp1);
+        sp<SPFoo> sp2 = std::move(sp1);
         ASSERT_EQ(1, foo->getStrongCount()) << "std::move failed, incremented refcnt";
         ASSERT_EQ(nullptr, sp1.get()) << "std::move failed, sp1 is still valid";
         // The strong count isn't increasing, let's double check the old object
@@ -52,7 +52,7 @@ TEST(StrongPointer, move) {
     ASSERT_FALSE(isDeleted) << "deleted too early! still has a reference!";
     {
         // Now let's double check it deletes on time
-        sp<Foo> sp2 = std::move(sp1);
+        sp<SPFoo> sp2 = std::move(sp1);
     }
     ASSERT_TRUE(isDeleted) << "foo was leaked!";
 }