test: add and update a few tests

object-test/trees.c

@@ -32,7 +32,7 @@ int main(void)
 	b_dict_iterator it;
 	b_dict_foreach(&it, dict)
 	{
-		printf("item %zu: %s=%d\n", it.i, it.key,
+		printf("item %zu: %s=%d\n", it.i, b_string_ptr(it.key),
 		       b_number_get_int(B_NUMBER(it.value)));
 	}
 

object-test/unicode-strings.c

@@ -0,0 +1,26 @@
+#include <blue/core/stringstream.h>
+#include <blue/object/string.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(void)
+{
+	printf("здравс\u26A0твуите\n");
+	b_string *str = b_string_create_from_cstr("здравствуите");
+	const char *s = b_string_ptr(str);
+	printf("%s\n", s);
+	printf("len: %zu\n", b_string_get_size(str, B_STRLEN_NORMAL));
+	printf("codepoints: %zu\n", b_string_get_size(str, B_STRLEN_CODEPOINTS));
+
+	b_string_iterator it;
+	const char *delims[] = {"в"};
+	size_t nr_delims = sizeof delims / sizeof delims[0];
+
+	b_string_tokenise(str, delims, nr_delims, 0, &it);
+	while (b_string_iterator_is_valid(&it)) {
+		printf("%s\n", it.string_value);
+		b_string_iterator_next(&it);
+	}
+
+	return 0;
+}