void test_set_byte() {
CharArray* c = String::create(state, "xyz")->data();
c->set_byte(state, Fixnum::from(0), Fixnum::from('1'));
TS_ASSERT_EQUALS(c->get_byte(state, Fixnum::from(0)), Fixnum::from('1'));
c->set_byte(state, Fixnum::from(2), Fixnum::from('2'));
TS_ASSERT_EQUALS(c->get_byte(state, Fixnum::from(2)), Fixnum::from('2'));
}
void test_get_byte_index_out_of_bounds() {
CharArray* c = String::create(state, "xyz")->data();
native_int sz = c->size(state)->to_native();
TS_ASSERT_THROWS_ASSERT(c->get_byte(state, Fixnum::from(sz)), const RubyException &e,
TS_ASSERT(Exception::object_bounds_exceeded_error_p(state, e.exception)));
TS_ASSERT_THROWS_ASSERT(c->get_byte(state, Fixnum::from(sz+1)), const RubyException &e,
TS_ASSERT(Exception::object_bounds_exceeded_error_p(state, e.exception)));
TS_ASSERT_THROWS_ASSERT(c->get_byte(state, Fixnum::from(-1)), const RubyException &e,
TS_ASSERT(Exception::object_bounds_exceeded_error_p(state, e.exception)));
}