Add small unit test for buf_chomp

Change-Id: Ia0799189d45223e0b987a5a4da5be60404388f1f
Signed-off-by: Arne Schwabe <[email protected]>

Author: schwabe

tests/unit_tests/openvpn/test_buffer.c

@@ -426,6 +426,32 @@ test_snprintf(void **state)
 #endif
 }
 
+void
+test_buffer_chomp(void **state)
+{
+    struct gc_arena gc = gc_new();
+    struct buffer buf = alloc_buf_gc(1024, &gc);
+
+    const char test1[] =  "There is a nice 1234 year old tree!\n\r";
+    buf_write(&buf, test1, sizeof(test1));
+    buf_chomp(&buf);
+    /* Check that our own method agrees */
+    assert_true(string_check_buf(&buf, CC_PRINT | CC_NULL, CC_CRLF));
+    assert_string_equal(BSTR(&buf), "There is a nice 1234 year old tree!");
+
+    struct buffer buf2 = alloc_buf_gc(1024, &gc);
+    const char test2[] =  "CR_RESPONSE,MTIx\x0a\x00";
+    buf_write(&buf2, test2, sizeof(test2));
+    buf_chomp(&buf2);
+
+    buf_chomp(&buf2);
+    /* Check that our own method agrees */
+    assert_true(string_check_buf(&buf2, CC_PRINT | CC_NULL, CC_CRLF));
+    assert_string_equal(BSTR(&buf2), "CR_RESPONSE,MTIx");
+
+    gc_free(&gc);
+}
+
 int
 main(void)
 {
@@ -460,7 +486,8 @@ main(void)
         cmocka_unit_test(test_buffer_gc_realloc),
         cmocka_unit_test(test_character_class),
         cmocka_unit_test(test_character_string_mod_buf),
-        cmocka_unit_test(test_snprintf)
+        cmocka_unit_test(test_snprintf),
+        cmocka_unit_test(test_buffer_chomp)
     };
 
     return cmocka_run_group_tests_name("buffer", tests, NULL, NULL);