tests: rename remaining C unit tests to .cpp (no content changes)

tests/test_utils_cpp.cpp

@@ -0,0 +1,113 @@
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <assert.h>
+#include <string.h>
+#include <stdlib.h>
+
+int verbose = 0;
+
+#include "utils.h"
+
+static void
+test_ss_itoa(void)
+{
+    char *s;
+
+    s = ss_itoa(0);
+    assert(s != NULL);
+    assert(strcmp(s, "0") == 0);
+
+    s = ss_itoa(42);
+    assert(s != NULL);
+    assert(strcmp(s, "42") == 0);
+
+    s = ss_itoa(-1);
+    assert(s != NULL);
+    assert(strcmp(s, "-1") == 0);
+
+    s = ss_itoa(12345);
+    assert(s != NULL);
+    assert(strcmp(s, "12345") == 0);
+    (void)s;
+}
+
+static void
+test_ss_isnumeric(void)
+{
+    assert(ss_isnumeric("12345") == 1);
+    assert(ss_isnumeric("0") == 1);
+    assert(ss_isnumeric("") == 0);
+    assert(ss_isnumeric("abc") == 0);
+    assert(ss_isnumeric("123abc") == 0);
+    assert(ss_isnumeric("12.34") == 0);
+}
+
+static void
+test_ss_strndup(void)
+{
+    char *s;
+
+    s = ss_strndup("hello world", 5);
+    assert(s != NULL);
+    assert(strcmp(s, "hello") == 0);
+    assert(strlen(s) == 5);
+    free(s);
+
+    s = ss_strndup("short", 10);
+    assert(s != NULL);
+    assert(strcmp(s, "short") == 0);
+    free(s);
+
+    s = ss_strndup("", 0);
+    assert(s != NULL);
+    assert(strcmp(s, "") == 0);
+    free(s);
+
+    char raw[3] = { 'a', 'b', 'c' };
+    s = ss_strndup(raw, sizeof(raw));
+    assert(s != NULL);
+    assert(strcmp(s, "abc") == 0);
+    free(s);
+}
+
+static void
+test_ss_parse_int(void)
+{
+    int value = -1;
+    uint16_t port = 0;
+
+    assert(ss_parse_int("0", 0, 10, &value) == 0);
+    assert(value == 0);
+
+    assert(ss_parse_int("10", 0, 10, &value) == 0);
+    assert(value == 10);
+
+    assert(ss_parse_int("-1", 0, 10, &value) == -1);
+    assert(ss_parse_int("11", 0, 10, &value) == -1);
+    assert(ss_parse_int("12x", 0, 100, &value) == -1);
+    assert(ss_parse_int("", 0, 100, &value) == -1);
+    assert(ss_parse_int("999999999999999999999999", 0, INT_MAX, &value) == -1);
+    assert(ss_parse_int("1", 10, 0, &value) == -1);
+    assert(ss_parse_int("1", 0, 10, NULL) == -1);
+
+    assert(ss_parse_uint16_port("1", &port) == 0);
+    assert(port == 1);
+    assert(ss_parse_uint16_port("65535", &port) == 0);
+    assert(port == 65535);
+    assert(ss_parse_uint16_port("0", &port) == -1);
+    assert(ss_parse_uint16_port("65536", &port) == -1);
+    assert(ss_parse_uint16_port("22x", &port) == -1);
+    assert(ss_parse_uint16_port("22", NULL) == -1);
+}
+
+int
+main(void)
+{
+    test_ss_itoa();
+    test_ss_isnumeric();
+    test_ss_strndup();
+    test_ss_parse_int();
+    return 0;
+}