unit: Update test_invalid() unit test

diff --git a/unit/test-util.c b/unit/test-util.c
index 079d775..d3bbf8c 100644 (file)
--- a/unit/test-util.c
+++ b/unit/test-util.c
@@ -345,7 +345,9 @@ static void test_invalid(void)
 {
        long nwritten;
        long nread;
-       char *res;
+       short unsigned int exp_code;
+       long exp_res_length;
+       char *res, *temp, *exp_res = NULL;
        unsigned char *gsm;
 
        res = convert_gsm_to_utf8(invalid_gsm_extended, 0, &nread, &nwritten,
@@ -356,11 +358,29 @@ static void test_invalid(void)
        g_assert(res[0] == '\0');
        g_free(res);
 
+       /*
+        * In case of invalid GSM extended code, we should display
+        * the character of the main default alphabet table.
+        */
        res = convert_gsm_to_utf8(invalid_gsm_extended,
                                        sizeof(invalid_gsm_extended),
                                        &nread, &nwritten, 0);
-       g_assert(res == NULL);
-       g_assert(nread == 1);
+
+       exp_code = gsm_to_unicode_map[invalid_gsm_extended[1]*2 + 1];
+
+       exp_res_length = UTF8_LENGTH(exp_code);
+       exp_res = g_try_malloc(exp_res_length + 1);
+
+       g_assert(exp_res != NULL);
+
+       temp = exp_res;
+       temp += g_unichar_to_utf8(exp_code, temp);
+       *temp = '\0';
+
+       g_assert(g_strcmp0(res, exp_res) == 0);
+       g_assert(nread == exp_res_length);
+       g_free(exp_res);
+       g_free(res);
 
        res = convert_gsm_to_utf8(invalid_gsm_extended_len,
                                        sizeof(invalid_gsm_extended_len),