diff --git a/tests/tests.cpp b/tests/tests.cpp
index 4d9a758b..194c4c54 100644
--- a/tests/tests.cpp
+++ b/tests/tests.cpp
@@ -195,6 +195,17 @@ void test_voxel_data_map_copy() {
 	ERR_FAIL_COND(!buffer->equals(**buffer2));
 }
 
+void test_encode_weights_packed_u16() {
+	FixedArray<uint8_t, 4> weights;
+	weights[0] = 1;
+	weights[1] = 5;
+	weights[2] = 10;
+	weights[3] = 15;
+	const uint16_t encoded_weights = encode_weights_to_packed_u16(weights[0], weights[1], weights[2], weights[3]);
+	FixedArray<uint8_t, 4> decoded_weights = decode_weights_from_packed_u16(encoded_weights);
+	ERR_FAIL_COND(weights != decoded_weights);
+}
+
 #define VOXEL_TEST(fname)                                     \
 	print_line(String("Running {0}").format(varray(#fname))); \
 	fname()
@@ -206,6 +217,7 @@ void run_voxel_tests() {
 	VOXEL_TEST(test_voxel_data_map_paste_fill);
 	VOXEL_TEST(test_voxel_data_map_paste_mask);
 	VOXEL_TEST(test_voxel_data_map_copy);
+	VOXEL_TEST(test_encode_weights_packed_u16);
 
 	print_line("------------ Voxel tests end -------------");
 }