+START_TEST (test_set_bitfield)
+{
+ uint8_t data[4] = {0};
+ fail_unless(set_bitfield(0x12, 0, 8, data, sizeof(data)));
+ fail_unless(set_bitfield(bitmask(3), 10, 3, data, sizeof(data)));
+ ck_assert_int_eq(data[0], 0x12);
+ ck_assert_int_eq(data[1], 0x38);
+}
+END_TEST
+
+START_TEST (test_set_bitfield_doesnt_fit)
+{
+ uint8_t data[4] = {0};
+ fail_if(set_bitfield(0xffff, 0, 8, data, sizeof(data)));
+ ck_assert_int_eq(data[0], 0);
+ ck_assert_int_eq(data[1], 0);
+ ck_assert_int_eq(data[2], 0);
+ ck_assert_int_eq(data[3], 0);
+}
+END_TEST
+