diff --git a/test/stdgpu/mutex.inc b/test/stdgpu/mutex.inc
index e756e551d..50b048f9c 100644
--- a/test/stdgpu/mutex.inc
+++ b/test/stdgpu/mutex.inc
@@ -337,169 +337,6 @@ TEST_F(stdgpu_mutex, multiple_try_lock_both_locked)
     stdgpu::mutex_array<>::destroyDeviceObject(locks_check);
 }
 
-class lock_multiple_functor_new_reference
-{
-public:
-    lock_multiple_functor_new_reference(const stdgpu::mutex_array<>& locks,
-                                        const stdgpu::index_t n_0,
-                                        const stdgpu::index_t n_1,
-                                        int* result)
-      : _locks(locks)
-      , _n_0(n_0)
-      , _n_1(n_1)
-      , _result(result)
-    {
-    }
-
-    STDGPU_DEVICE_ONLY void
-    operator()(STDGPU_MAYBE_UNUSED const stdgpu::index_t i)
-    {
-        stdgpu::mutex_array<>::reference ref_0 = static_cast<stdgpu::mutex_array<>::reference>(_locks[_n_0]);
-        stdgpu::mutex_array<>::reference ref_1 = static_cast<stdgpu::mutex_array<>::reference>(_locks[_n_1]);
-        *_result = stdgpu::try_lock(ref_0, ref_1);
-    }
-
-private:
-    stdgpu::mutex_array<> _locks;
-    stdgpu::index_t _n_0;
-    stdgpu::index_t _n_1;
-    int* _result;
-};
-
-int
-lock_multiple_new_reference(const stdgpu::mutex_array<>& locks, const stdgpu::index_t n_0, const stdgpu::index_t n_1)
-{
-    int* result = createDeviceArray<int>(1);
-
-    stdgpu::for_each_index(thrust::device, 1, lock_multiple_functor_new_reference(locks, n_0, n_1, result));
-
-    int host_result;
-    copyDevice2HostArray<int>(result, 1, &host_result, MemoryCopy::NO_CHECK);
-
-    destroyDeviceArray<int>(result);
-
-    return host_result;
-}
-
-class lock_single_functor_new_reference
-{
-public:
-    lock_single_functor_new_reference(const stdgpu::mutex_array<>& locks, const stdgpu::index_t n, std::uint8_t* result)
-      : _locks(locks)
-      , _n(n)
-      , _result(result)
-    {
-    }
-
-    STDGPU_DEVICE_ONLY void
-    operator()(STDGPU_MAYBE_UNUSED const stdgpu::index_t i)
-    {
-        stdgpu::mutex_array<>::reference ref = static_cast<stdgpu::mutex_array<>::reference>(_locks[_n]);
-        *_result = static_cast<std::uint8_t>(ref.try_lock());
-    }
-
-private:
-    stdgpu::mutex_array<> _locks;
-    stdgpu::index_t _n;
-    std::uint8_t* _result;
-};
-
-bool
-lock_single_new_reference(const stdgpu::mutex_array<>& locks, const stdgpu::index_t n)
-{
-    std::uint8_t* result = createDeviceArray<std::uint8_t>(1);
-
-    stdgpu::for_each_index(thrust::device, 1, lock_single_functor_new_reference(locks, n, result));
-
-    std::uint8_t host_result;
-    copyDevice2HostArray<std::uint8_t>(result, 1, &host_result, MemoryCopy::NO_CHECK);
-
-    destroyDeviceArray<std::uint8_t>(result);
-
-    return static_cast<bool>(host_result);
-}
-
-TEST_F(stdgpu_mutex, multiple_try_lock_both_unlocked_new_reference)
-{
-    const stdgpu::index_t n_0 = 21;
-    const stdgpu::index_t n_1 = 42;
-
-    stdgpu::mutex_array<> locks_check = stdgpu::mutex_array<>::createDeviceObject(locks_size);
-
-    ASSERT_TRUE(equal(locks, locks_check));
-
-    EXPECT_EQ(lock_multiple_new_reference(locks, n_0, n_1), -1);
-
-    // Both mutexes should be locked now
-    ASSERT_TRUE(lock_single_new_reference(locks_check, n_0));
-    ASSERT_TRUE(lock_single_new_reference(locks_check, n_1));
-    EXPECT_TRUE(equal(locks, locks_check));
-
-    stdgpu::mutex_array<>::destroyDeviceObject(locks_check);
-}
-
-TEST_F(stdgpu_mutex, multiple_try_lock_first_unlocked_second_locked_new_reference)
-{
-    const stdgpu::index_t n_0 = 21;
-    const stdgpu::index_t n_1 = 42;
-
-    ASSERT_TRUE(lock_single_new_reference(locks, n_1));
-
-    stdgpu::mutex_array<> locks_check = stdgpu::mutex_array<>::createDeviceObject(locks_size);
-    ASSERT_TRUE(lock_single_new_reference(locks_check, n_1));
-
-    ASSERT_TRUE(equal(locks, locks_check));
-
-    EXPECT_EQ(lock_multiple_new_reference(locks, n_0, n_1), 1);
-
-    // Nothing has changed
-    EXPECT_TRUE(equal(locks, locks_check));
-
-    stdgpu::mutex_array<>::destroyDeviceObject(locks_check);
-}
-
-TEST_F(stdgpu_mutex, multiple_try_lock_first_locked_second_unlocked_new_reference)
-{
-    const stdgpu::index_t n_0 = 21;
-    const stdgpu::index_t n_1 = 42;
-
-    ASSERT_TRUE(lock_single_new_reference(locks, n_0));
-
-    stdgpu::mutex_array<> locks_check = stdgpu::mutex_array<>::createDeviceObject(locks_size);
-    ASSERT_TRUE(lock_single_new_reference(locks_check, n_0));
-
-    ASSERT_TRUE(equal(locks, locks_check));
-
-    EXPECT_EQ(lock_multiple_new_reference(locks, n_0, n_1), 0);
-
-    // Nothing has changed
-    EXPECT_TRUE(equal(locks, locks_check));
-
-    stdgpu::mutex_array<>::destroyDeviceObject(locks_check);
-}
-
-TEST_F(stdgpu_mutex, multiple_try_lock_both_locked_new_reference)
-{
-    const stdgpu::index_t n_0 = 21;
-    const stdgpu::index_t n_1 = 42;
-
-    ASSERT_TRUE(lock_single_new_reference(locks, n_0));
-    ASSERT_TRUE(lock_single_new_reference(locks, n_1));
-
-    stdgpu::mutex_array<> locks_check = stdgpu::mutex_array<>::createDeviceObject(locks_size);
-    ASSERT_TRUE(lock_single_new_reference(locks_check, n_0));
-    ASSERT_TRUE(lock_single_new_reference(locks_check, n_1));
-
-    ASSERT_TRUE(equal(locks, locks_check));
-
-    EXPECT_EQ(lock_multiple_new_reference(locks, n_0, n_1), 0);
-
-    // Nothing has changed
-    EXPECT_TRUE(equal(locks, locks_check));
-
-    stdgpu::mutex_array<>::destroyDeviceObject(locks_check);
-}
-
 TEST_F(stdgpu_mutex, get_allocator)
 {
     const stdgpu::index_t N = 10000;