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qemu/tests/test-string-output-visitor.c
Andreas Färber b8864245b1 tests: Fix unterminated string output visitor enum human string 
The buffer was being allocated of size string length plus two.
Around the string two quotes were being added, but no terminating NUL.
It was then compared using g_assert_cmpstr(), resulting in fairly random
assertion failures:

 ERROR:tests/test-string-output-visitor.c:213:test_visitor_out_enum: assertion failed (str == str_human): ("\"value1\"" == "\"value1\"\001EEEEEEEEEEEEEE\0171")

There is no g_assert_cmpnstr() counterpart, so use g_strdup_printf()
for safely assembling the string in the first place.

Cc: Hu Tao <hutao@cn.fujitsu.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Suggested-by: Eric Blake <eblake@redhat.com>
Fixes: b4900c0 tests: add human format test for string output visitor
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-07-14 12:03:20 +02:00

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/*
* String Output Visitor unit-tests.
*
* Copyright (C) 2012 Red Hat Inc.
*
* Authors:
* Paolo Bonzini <pbonzini@redhat.com> (based on test-qmp-output-visitor)
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#include <glib.h>
#include "qemu-common.h"
#include "qapi/string-output-visitor.h"
#include "test-qapi-types.h"
#include "test-qapi-visit.h"
#include "qapi/qmp/types.h"
typedef struct TestOutputVisitorData {
StringOutputVisitor *sov;
Visitor *ov;
bool human;
} TestOutputVisitorData;
static void visitor_output_setup(TestOutputVisitorData *data,
const void *unused)
{
data->human = false;
data->sov = string_output_visitor_new(data->human);
g_assert(data->sov != NULL);
data->ov = string_output_get_visitor(data->sov);
g_assert(data->ov != NULL);
}
static void visitor_output_setup_human(TestOutputVisitorData *data,
const void *unused)
{
data->human = true;
data->sov = string_output_visitor_new(data->human);
g_assert(data->sov != NULL);
data->ov = string_output_get_visitor(data->sov);
g_assert(data->ov != NULL);
}
static void visitor_output_teardown(TestOutputVisitorData *data,
const void *unused)
{
string_output_visitor_cleanup(data->sov);
data->sov = NULL;
data->ov = NULL;
}
static void test_visitor_out_int(TestOutputVisitorData *data,
const void *unused)
{
int64_t value = 42;
Error *err = NULL;
char *str;
visit_type_int(data->ov, &value, NULL, &err);
g_assert(!err);
str = string_output_get_string(data->sov);
g_assert(str != NULL);
if (data->human) {
g_assert_cmpstr(str, ==, "42 (0x2a)");
} else {
g_assert_cmpstr(str, ==, "42");
}
g_free(str);
}
static void test_visitor_out_intList(TestOutputVisitorData *data,
const void *unused)
{
int64_t value[] = {0, 1, 9, 10, 16, 15, 14,
3, 4, 5, 6, 11, 12, 13, 21, 22, INT64_MAX - 1, INT64_MAX};
intList *list = NULL, **tmp = &list;
int i;
Error *errp = NULL;
char *str;
for (i = 0; i < sizeof(value) / sizeof(value[0]); i++) {
*tmp = g_malloc0(sizeof(**tmp));
(*tmp)->value = value[i];
tmp = &(*tmp)->next;
}
visit_type_intList(data->ov, &list, NULL, &errp);
g_assert(errp == NULL);
str = string_output_get_string(data->sov);
g_assert(str != NULL);
if (data->human) {
g_assert_cmpstr(str, ==,
"0-1,3-6,9-16,21-22,9223372036854775806-9223372036854775807 "
"(0x0-0x1,0x3-0x6,0x9-0x10,0x15-0x16,"
"0x7ffffffffffffffe-0x7fffffffffffffff)");
} else {
g_assert_cmpstr(str, ==,
"0-1,3-6,9-16,21-22,9223372036854775806-9223372036854775807");
}
g_free(str);
while (list) {
intList *tmp2;
tmp2 = list->next;
g_free(list);
list = tmp2;
}
}
static void test_visitor_out_bool(TestOutputVisitorData *data,
const void *unused)
{
Error *err = NULL;
bool value = true;
char *str;
visit_type_bool(data->ov, &value, NULL, &err);
g_assert(!err);
str = string_output_get_string(data->sov);
g_assert(str != NULL);
g_assert_cmpstr(str, ==, "true");
g_free(str);
}
static void test_visitor_out_number(TestOutputVisitorData *data,
const void *unused)
{
double value = 3.14;
Error *err = NULL;
char *str;
visit_type_number(data->ov, &value, NULL, &err);
g_assert(!err);
str = string_output_get_string(data->sov);
g_assert(str != NULL);
g_assert_cmpstr(str, ==, "3.140000");
g_free(str);
}
static void test_visitor_out_string(TestOutputVisitorData *data,
const void *unused)
{
char *string = (char *) "Q E M U";
const char *string_human = "\"Q E M U\"";
Error *err = NULL;
char *str;
visit_type_str(data->ov, &string, NULL, &err);
g_assert(!err);
str = string_output_get_string(data->sov);
g_assert(str != NULL);
if (data->human) {
g_assert_cmpstr(str, ==, string_human);
} else {
g_assert_cmpstr(str, ==, string);
}
g_free(str);
}
static void test_visitor_out_no_string(TestOutputVisitorData *data,
const void *unused)
{
char *string = NULL;
Error *err = NULL;
char *str;
/* A null string should return "" */
visit_type_str(data->ov, &string, NULL, &err);
g_assert(!err);
str = string_output_get_string(data->sov);
g_assert(str != NULL);
if (data->human) {
g_assert_cmpstr(str, ==, "<null>");
} else {
g_assert_cmpstr(str, ==, "");
}
g_free(str);
}
static void test_visitor_out_enum(TestOutputVisitorData *data,
const void *unused)
{
Error *err = NULL;
char *str;
EnumOne i;
for (i = 0; i < ENUM_ONE_MAX; i++) {
char *str_human;
visit_type_EnumOne(data->ov, &i, "unused", &err);
g_assert(!err);
str_human = g_strdup_printf("\"%s\"", EnumOne_lookup[i]);
str = string_output_get_string(data->sov);
g_assert(str != NULL);
if (data->human) {
g_assert_cmpstr(str, ==, str_human);
} else {
g_assert_cmpstr(str, ==, EnumOne_lookup[i]);
}
g_free(str_human);
g_free(str);
}
}
static void test_visitor_out_enum_errors(TestOutputVisitorData *data,
const void *unused)
{
EnumOne i, bad_values[] = { ENUM_ONE_MAX, -1 };
Error *err;
for (i = 0; i < ARRAY_SIZE(bad_values) ; i++) {
err = NULL;
visit_type_EnumOne(data->ov, &bad_values[i], "unused", &err);
g_assert(err);
error_free(err);
}
}
static void
output_visitor_test_add(const char *testpath,
TestOutputVisitorData *data,
void (*test_func)(TestOutputVisitorData *data,
const void *user_data),
bool human)
{
g_test_add(testpath, TestOutputVisitorData, data,
human ? visitor_output_setup_human : visitor_output_setup,
test_func, visitor_output_teardown);
}
int main(int argc, char **argv)
{
TestOutputVisitorData out_visitor_data;
g_test_init(&argc, &argv, NULL);
output_visitor_test_add("/string-visitor/output/int",
&out_visitor_data, test_visitor_out_int, false);
output_visitor_test_add("/string-visitor/output/int",
&out_visitor_data, test_visitor_out_int, true);
output_visitor_test_add("/string-visitor/output/bool",
&out_visitor_data, test_visitor_out_bool, false);
output_visitor_test_add("/string-visitor/output/bool",
&out_visitor_data, test_visitor_out_bool, true);
output_visitor_test_add("/string-visitor/output/number",
&out_visitor_data, test_visitor_out_number, false);
output_visitor_test_add("/string-visitor/output/number",
&out_visitor_data, test_visitor_out_number, true);
output_visitor_test_add("/string-visitor/output/string",
&out_visitor_data, test_visitor_out_string, false);
output_visitor_test_add("/string-visitor/output/string",
&out_visitor_data, test_visitor_out_string, true);
output_visitor_test_add("/string-visitor/output/no-string",
&out_visitor_data, test_visitor_out_no_string,
false);
output_visitor_test_add("/string-visitor/output/no-string",
&out_visitor_data, test_visitor_out_no_string,
true);
output_visitor_test_add("/string-visitor/output/enum",
&out_visitor_data, test_visitor_out_enum, false);
output_visitor_test_add("/string-visitor/output/enum",
&out_visitor_data, test_visitor_out_enum, true);
output_visitor_test_add("/string-visitor/output/enum-errors",
&out_visitor_data, test_visitor_out_enum_errors,
false);
output_visitor_test_add("/string-visitor/output/enum-errors",
&out_visitor_data, test_visitor_out_enum_errors,
true);
output_visitor_test_add("/string-visitor/output/intList",
&out_visitor_data, test_visitor_out_intList, false);
output_visitor_test_add("/string-visitor/output/intList",
&out_visitor_data, test_visitor_out_intList, true);
g_test_run();
return 0;
}
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