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qemu-e2k/tests/test-string-output-visitor.c
Eric Blake 7fb1cf1606 qapi: Don't let implicit enum MAX member collide 
Now that we guarantee the user doesn't have any enum values
beginning with a single underscore, we can use that for our
own purposes.  Renaming ENUM_MAX to ENUM__MAX makes it obvious
that the sentinel is generated.

This patch was mostly generated by applying a temporary patch:

|diff --git a/scripts/qapi.py b/scripts/qapi.py
|index e6d014b..b862ec9 100644
|--- a/scripts/qapi.py
|+++ b/scripts/qapi.py
|@@ -1570,6 +1570,7 @@ const char *const %(c_name)s_lookup[] = {
|     max_index = c_enum_const(name, 'MAX', prefix)
|     ret += mcgen('''
|     [%(max_index)s] = NULL,
|+// %(max_index)s
| };
| ''',
|                max_index=max_index)

then running:

$ cat qapi-{types,event}.c tests/test-qapi-types.c |
    sed -n 's,^// \(.*\)MAX,s|\1MAX|\1_MAX|g,p' > list
$ git grep -l _MAX | xargs sed -i -f list

The only things not generated are the changes in scripts/qapi.py.

Rejecting enum members named 'MAX' is now useless, and will be dropped
in the next patch.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1447836791-369-23-git-send-email-eblake@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
[Rebased to current master, commit message tweaked]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-12-17 08:21:28 +01:00

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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-human",
&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-human",
&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-human",
&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-human",
&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-human",
&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-human",
&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-human",
&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-human",
&out_visitor_data, test_visitor_out_intList, true);
g_test_run();
return 0;
}
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