+static void test_ascii_is_valid(void) {
+ assert_se(ascii_is_valid("alsdjf\t\vbarr\nba z"));
+ assert_se(!ascii_is_valid("\342\204\242"));
+ assert_se(!ascii_is_valid("\341\204"));
+}
+
+static void test_utf8_encoded_valid_unichar(void) {
+ assert_se(utf8_encoded_valid_unichar("\342\204\242") == 3);
+ assert_se(utf8_encoded_valid_unichar("\302\256") == 2);
+ assert_se(utf8_encoded_valid_unichar("a") == 1);
+ assert_se(utf8_encoded_valid_unichar("\341\204") < 0);
+ assert_se(utf8_encoded_valid_unichar("\341\204\341\204") < 0);
+}
+
+static void test_utf8_escaping(void) {
+ _cleanup_free_ char *p1, *p2, *p3;
+
+ p1 = utf8_escape_invalid("goo goo goo");
+ puts(p1);
+ assert_se(utf8_is_valid(p1));
+
+ p2 = utf8_escape_invalid("\341\204\341\204");
+ puts(p2);
+ assert_se(utf8_is_valid(p2));
+
+ p3 = utf8_escape_invalid("\341\204");
+ puts(p3);
+ assert_se(utf8_is_valid(p3));
+}
+
+static void test_utf8_escaping_printable(void) {
+ _cleanup_free_ char *p1, *p2, *p3, *p4, *p5, *p6;
+
+ p1 = utf8_escape_non_printable("goo goo goo");
+ puts(p1);
+ assert_se(utf8_is_valid(p1));
+
+ p2 = utf8_escape_non_printable("\341\204\341\204");
+ puts(p2);
+ assert_se(utf8_is_valid(p2));
+
+ p3 = utf8_escape_non_printable("\341\204");
+ puts(p3);
+ assert_se(utf8_is_valid(p3));
+
+ p4 = utf8_escape_non_printable("ąę\n가너도루\n1234\n\341\204\341\204\n\001 \019\20\a");
+ puts(p4);
+ assert_se(utf8_is_valid(p4));
+
+ p5 = utf8_escape_non_printable("\001 \019\20\a");
+ puts(p5);
+ assert_se(utf8_is_valid(p5));
+
+ p6 = utf8_escape_non_printable("\xef\xbf\x30\x13");
+ puts(p6);
+ assert_se(utf8_is_valid(p6));
+}
+