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qemu-e2k/tests/test-qmp-input-strict.c
Eric Blake 51e72bc1dd qapi: Swap visit_* arguments for consistent 'name' placement 
JSON uses "name":value, but many of our visitor interfaces were
called with visit_type_FOO(v, &value, name, errp).  This can be
a bit confusing to have to mentally swap the parameter order to
match JSON order.  It's particularly bad for visit_start_struct(),
where the 'name' parameter is smack in the middle of the
otherwise-related group of 'obj, kind, size' parameters! It's
time to do a global swap of the parameter ordering, so that the
'name' parameter is always immediately after the Visitor argument.

Additional reason in favor of the swap: the existing include/qjson.h
prefers listing 'name' first in json_prop_*(), and I have plans to
unify that file with the qapi visitors; listing 'name' first in
qapi will minimize churn to the (admittedly few) qjson.h clients.

Later patches will then fix docs, object.h, visitor-impl.h, and
those clients to match.

Done by first patching scripts/qapi*.py by hand to make generated
files do what I want, then by running the following Coccinelle
script to affect the rest of the code base:
 $ spatch --sp-file script `git grep -l '\bvisit_' -- '**/*.[ch]'`
I then had to apply some touchups (Coccinelle insisted on TAB
indentation in visitor.h, and botched the signature of
visit_type_enum() by rewriting 'const char *const strings[]' to
the syntactically invalid 'const char*const[] strings').  The
movement of parameters is sufficient to provoke compiler errors
if any callers were missed.

    // Part 1: Swap declaration order
    @@
    type TV, TErr, TObj, T1, T2;
    identifier OBJ, ARG1, ARG2;
    @@
     void visit_start_struct
    -(TV v, TObj OBJ, T1 ARG1, const char *name, T2 ARG2, TErr errp)
    +(TV v, const char *name, TObj OBJ, T1 ARG1, T2 ARG2, TErr errp)
     { ... }

    @@
    type bool, TV, T1;
    identifier ARG1;
    @@
     bool visit_optional
    -(TV v, T1 ARG1, const char *name)
    +(TV v, const char *name, T1 ARG1)
     { ... }

    @@
    type TV, TErr, TObj, T1;
    identifier OBJ, ARG1;
    @@
     void visit_get_next_type
    -(TV v, TObj OBJ, T1 ARG1, const char *name, TErr errp)
    +(TV v, const char *name, TObj OBJ, T1 ARG1, TErr errp)
     { ... }

    @@
    type TV, TErr, TObj, T1, T2;
    identifier OBJ, ARG1, ARG2;
    @@
     void visit_type_enum
    -(TV v, TObj OBJ, T1 ARG1, T2 ARG2, const char *name, TErr errp)
    +(TV v, const char *name, TObj OBJ, T1 ARG1, T2 ARG2, TErr errp)
     { ... }

    @@
    type TV, TErr, TObj;
    identifier OBJ;
    identifier VISIT_TYPE =~ "^visit_type_";
    @@
     void VISIT_TYPE
    -(TV v, TObj OBJ, const char *name, TErr errp)
    +(TV v, const char *name, TObj OBJ, TErr errp)
     { ... }

    // Part 2: swap caller order
    @@
    expression V, NAME, OBJ, ARG1, ARG2, ERR;
    identifier VISIT_TYPE =~ "^visit_type_";
    @@
    (
    -visit_start_struct(V, OBJ, ARG1, NAME, ARG2, ERR)
    +visit_start_struct(V, NAME, OBJ, ARG1, ARG2, ERR)
    |
    -visit_optional(V, ARG1, NAME)
    +visit_optional(V, NAME, ARG1)
    |
    -visit_get_next_type(V, OBJ, ARG1, NAME, ERR)
    +visit_get_next_type(V, NAME, OBJ, ARG1, ERR)
    |
    -visit_type_enum(V, OBJ, ARG1, ARG2, NAME, ERR)
    +visit_type_enum(V, NAME, OBJ, ARG1, ARG2, ERR)
    |
    -VISIT_TYPE(V, OBJ, NAME, ERR)
    +VISIT_TYPE(V, NAME, OBJ, ERR)
    )

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <1454075341-13658-19-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2016-02-08 17:29:56 +01:00

344 lines
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/*
* QMP Input Visitor unit-tests (strict mode).
*
* Copyright (C) 2011-2012, 2015 Red Hat Inc.
*
* Authors:
* Luiz Capitulino <lcapitulino@redhat.com>
* Paolo Bonzini <pbonzini@redhat.com>
*
* 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 <stdarg.h>
#include "qemu-common.h"
#include "qapi/qmp-input-visitor.h"
#include "test-qapi-types.h"
#include "test-qapi-visit.h"
#include "qapi/qmp/types.h"
#include "test-qmp-introspect.h"
#include "qmp-introspect.h"
#include "qapi-visit.h"
typedef struct TestInputVisitorData {
QObject *obj;
QmpInputVisitor *qiv;
} TestInputVisitorData;
static void validate_teardown(TestInputVisitorData *data,
const void *unused)
{
qobject_decref(data->obj);
data->obj = NULL;
if (data->qiv) {
qmp_input_visitor_cleanup(data->qiv);
data->qiv = NULL;
}
}
/* The various test_init functions are provided instead of a test setup
function so that the JSON string used by the tests are kept in the test
functions (and not in main()). */
static Visitor *validate_test_init_internal(TestInputVisitorData *data,
const char *json_string,
va_list *ap)
{
Visitor *v;
validate_teardown(data, NULL);
data->obj = qobject_from_jsonv(json_string, ap);
g_assert(data->obj);
data->qiv = qmp_input_visitor_new_strict(data->obj);
g_assert(data->qiv);
v = qmp_input_get_visitor(data->qiv);
g_assert(v);
return v;
}
static GCC_FMT_ATTR(2, 3)
Visitor *validate_test_init(TestInputVisitorData *data,
const char *json_string, ...)
{
Visitor *v;
va_list ap;
va_start(ap, json_string);
v = validate_test_init_internal(data, json_string, &ap);
va_end(ap);
return v;
}
/* similar to validate_test_init(), but does not expect a string
* literal/format json_string argument and so can be used for
* programatically generated strings (and we can't pass in programatically
* generated strings via %s format parameters since qobject_from_jsonv()
* will wrap those in double-quotes and treat the entire object as a
* string)
*/
static Visitor *validate_test_init_raw(TestInputVisitorData *data,
const char *json_string)
{
return validate_test_init_internal(data, json_string, NULL);
}
static void test_validate_struct(TestInputVisitorData *data,
const void *unused)
{
TestStruct *p = NULL;
Visitor *v;
v = validate_test_init(data, "{ 'integer': -42, 'boolean': true, 'string': 'foo' }");
visit_type_TestStruct(v, NULL, &p, &error_abort);
g_free(p->string);
g_free(p);
}
static void test_validate_struct_nested(TestInputVisitorData *data,
const void *unused)
{
UserDefTwo *udp = NULL;
Visitor *v;
v = validate_test_init(data, "{ 'string0': 'string0', "
"'dict1': { 'string1': 'string1', "
"'dict2': { 'userdef': { 'integer': 42, "
"'string': 'string' }, 'string': 'string2'}}}");
visit_type_UserDefTwo(v, NULL, &udp, &error_abort);
qapi_free_UserDefTwo(udp);
}
static void test_validate_list(TestInputVisitorData *data,
const void *unused)
{
UserDefOneList *head = NULL;
Visitor *v;
v = validate_test_init(data, "[ { 'string': 'string0', 'integer': 42 }, { 'string': 'string1', 'integer': 43 }, { 'string': 'string2', 'integer': 44 } ]");
visit_type_UserDefOneList(v, NULL, &head, &error_abort);
qapi_free_UserDefOneList(head);
}
static void test_validate_union_native_list(TestInputVisitorData *data,
const void *unused)
{
UserDefNativeListUnion *tmp = NULL;
Visitor *v;
v = validate_test_init(data, "{ 'type': 'integer', 'data' : [ 1, 2 ] }");
visit_type_UserDefNativeListUnion(v, NULL, &tmp, &error_abort);
qapi_free_UserDefNativeListUnion(tmp);
}
static void test_validate_union_flat(TestInputVisitorData *data,
const void *unused)
{
UserDefFlatUnion *tmp = NULL;
Visitor *v;
v = validate_test_init(data,
"{ 'enum1': 'value1', "
"'integer': 41, "
"'string': 'str', "
"'boolean': true }");
visit_type_UserDefFlatUnion(v, NULL, &tmp, &error_abort);
qapi_free_UserDefFlatUnion(tmp);
}
static void test_validate_alternate(TestInputVisitorData *data,
const void *unused)
{
UserDefAlternate *tmp = NULL;
Visitor *v;
v = validate_test_init(data, "42");
visit_type_UserDefAlternate(v, NULL, &tmp, &error_abort);
qapi_free_UserDefAlternate(tmp);
}
static void test_validate_fail_struct(TestInputVisitorData *data,
const void *unused)
{
TestStruct *p = NULL;
Error *err = NULL;
Visitor *v;
v = validate_test_init(data, "{ 'integer': -42, 'boolean': true, 'string': 'foo', 'extra': 42 }");
visit_type_TestStruct(v, NULL, &p, &err);
error_free_or_abort(&err);
if (p) {
g_free(p->string);
}
g_free(p);
}
static void test_validate_fail_struct_nested(TestInputVisitorData *data,
const void *unused)
{
UserDefTwo *udp = NULL;
Error *err = NULL;
Visitor *v;
v = validate_test_init(data, "{ 'string0': 'string0', 'dict1': { 'string1': 'string1', 'dict2': { 'userdef1': { 'integer': 42, 'string': 'string', 'extra': [42, 23, {'foo':'bar'}] }, 'string2': 'string2'}}}");
visit_type_UserDefTwo(v, NULL, &udp, &err);
error_free_or_abort(&err);
qapi_free_UserDefTwo(udp);
}
static void test_validate_fail_list(TestInputVisitorData *data,
const void *unused)
{
UserDefOneList *head = NULL;
Error *err = NULL;
Visitor *v;
v = validate_test_init(data, "[ { 'string': 'string0', 'integer': 42 }, { 'string': 'string1', 'integer': 43 }, { 'string': 'string2', 'integer': 44, 'extra': 'ggg' } ]");
visit_type_UserDefOneList(v, NULL, &head, &err);
error_free_or_abort(&err);
qapi_free_UserDefOneList(head);
}
static void test_validate_fail_union_native_list(TestInputVisitorData *data,
const void *unused)
{
UserDefNativeListUnion *tmp = NULL;
Error *err = NULL;
Visitor *v;
v = validate_test_init(data,
"{ 'type': 'integer', 'data' : [ 'string' ] }");
visit_type_UserDefNativeListUnion(v, NULL, &tmp, &err);
error_free_or_abort(&err);
qapi_free_UserDefNativeListUnion(tmp);
}
static void test_validate_fail_union_flat(TestInputVisitorData *data,
const void *unused)
{
UserDefFlatUnion *tmp = NULL;
Error *err = NULL;
Visitor *v;
v = validate_test_init(data, "{ 'string': 'c', 'integer': 41, 'boolean': true }");
visit_type_UserDefFlatUnion(v, NULL, &tmp, &err);
error_free_or_abort(&err);
qapi_free_UserDefFlatUnion(tmp);
}
static void test_validate_fail_union_flat_no_discrim(TestInputVisitorData *data,
const void *unused)
{
UserDefFlatUnion2 *tmp = NULL;
Error *err = NULL;
Visitor *v;
/* test situation where discriminator field ('enum1' here) is missing */
v = validate_test_init(data, "{ 'integer': 42, 'string': 'c', 'string1': 'd', 'string2': 'e' }");
visit_type_UserDefFlatUnion2(v, NULL, &tmp, &err);
error_free_or_abort(&err);
qapi_free_UserDefFlatUnion2(tmp);
}
static void test_validate_fail_alternate(TestInputVisitorData *data,
const void *unused)
{
UserDefAlternate *tmp = NULL;
Visitor *v;
Error *err = NULL;
v = validate_test_init(data, "3.14");
visit_type_UserDefAlternate(v, NULL, &tmp, &err);
error_free_or_abort(&err);
qapi_free_UserDefAlternate(tmp);
}
static void do_test_validate_qmp_introspect(TestInputVisitorData *data,
const char *schema_json)
{
SchemaInfoList *schema = NULL;
Visitor *v;
v = validate_test_init_raw(data, schema_json);
visit_type_SchemaInfoList(v, NULL, &schema, &error_abort);
g_assert(schema);
qapi_free_SchemaInfoList(schema);
}
static void test_validate_qmp_introspect(TestInputVisitorData *data,
const void *unused)
{
do_test_validate_qmp_introspect(data, test_qmp_schema_json);
do_test_validate_qmp_introspect(data, qmp_schema_json);
}
static void validate_test_add(const char *testpath,
TestInputVisitorData *data,
void (*test_func)(TestInputVisitorData *data, const void *user_data))
{
g_test_add(testpath, TestInputVisitorData, data, NULL, test_func,
validate_teardown);
}
int main(int argc, char **argv)
{
TestInputVisitorData testdata;
g_test_init(&argc, &argv, NULL);
validate_test_add("/visitor/input-strict/pass/struct",
&testdata, test_validate_struct);
validate_test_add("/visitor/input-strict/pass/struct-nested",
&testdata, test_validate_struct_nested);
validate_test_add("/visitor/input-strict/pass/list",
&testdata, test_validate_list);
validate_test_add("/visitor/input-strict/pass/union-flat",
&testdata, test_validate_union_flat);
validate_test_add("/visitor/input-strict/pass/alternate",
&testdata, test_validate_alternate);
validate_test_add("/visitor/input-strict/pass/union-native-list",
&testdata, test_validate_union_native_list);
validate_test_add("/visitor/input-strict/fail/struct",
&testdata, test_validate_fail_struct);
validate_test_add("/visitor/input-strict/fail/struct-nested",
&testdata, test_validate_fail_struct_nested);
validate_test_add("/visitor/input-strict/fail/list",
&testdata, test_validate_fail_list);
validate_test_add("/visitor/input-strict/fail/union-flat",
&testdata, test_validate_fail_union_flat);
validate_test_add("/visitor/input-strict/fail/union-flat-no-discriminator",
&testdata, test_validate_fail_union_flat_no_discrim);
validate_test_add("/visitor/input-strict/fail/alternate",
&testdata, test_validate_fail_alternate);
validate_test_add("/visitor/input-strict/fail/union-native-list",
&testdata, test_validate_fail_union_native_list);
validate_test_add("/visitor/input-strict/pass/qmp-introspect",
&testdata, test_validate_qmp_introspect);
g_test_run();
return 0;
}
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