tests/test-qmp-cmds: Simplify test data setup

Building requests with qdict_put() & friends is tedious to write and
hard to read.  Parse them from string literals with
qdict_from_vjsonf_nofail() instead.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20200317115459.31821-8-armbru@redhat.com>

tests/test-qmp-cmds.c

@@ -1,5 +1,6 @@
 #include "qemu/osdep.h"
 #include "qapi/qmp/qdict.h"
+#include "qapi/qmp/qjson.h"
 #include "qapi/qmp/qnum.h"
 #include "qapi/qmp/qstring.h"
 #include "qapi/error.h"
@@ -145,11 +146,16 @@ __org_qemu_x_Union1 *qmp___org_qemu_x_command(__org_qemu_x_EnumList *a,
 }
 
 
-static QObject *do_qmp_dispatch(QDict *req, bool allow_oob)
+static QObject *do_qmp_dispatch(bool allow_oob, const char *template, ...)
 {
-    QDict *resp;
+    va_list ap;
+    QDict *req, *resp;
     QObject *ret;
 
+    va_start(ap, template);
+    req = qdict_from_vjsonf_nofail(template, ap);
+    va_end(ap);
+
     resp = qmp_dispatch(&qmp_commands, QOBJECT(req), allow_oob);
     g_assert(resp);
     ret = qdict_get(resp, "return");
@@ -158,14 +164,21 @@ static QObject *do_qmp_dispatch(QDict *req, bool allow_oob)
 
     qobject_ref(ret);
     qobject_unref(resp);
+    qobject_unref(req);
     return ret;
 }
 
-static void do_qmp_dispatch_error(QDict *req, bool allow_oob, ErrorClass cls)
+static void do_qmp_dispatch_error(bool allow_oob, ErrorClass cls,
+                                  const char *template, ...)
 {
-    QDict *resp;
+    va_list ap;
+    QDict *req, *resp;
     QDict *error;
 
+    va_start(ap, template);
+    req = qdict_from_vjsonf_nofail(template, ap);
+    va_end(ap);
+
     resp = qmp_dispatch(&qmp_commands, QOBJECT(req), allow_oob);
     g_assert(resp);
     error = qdict_get_qdict(resp, "error");
@@ -177,59 +190,43 @@ static void do_qmp_dispatch_error(QDict *req, bool allow_oob, ErrorClass cls)
     g_assert(qdict_size(resp) == 1);
 
     qobject_unref(resp);
+    qobject_unref(req);
 }
 
 /* test commands with no input and no return value */
 static void test_dispatch_cmd(void)
 {
-    QDict *req = qdict_new();
     QDict *ret;
 
-    qdict_put_str(req, "execute", "user_def_cmd");
+    ret = qobject_to(QDict,
-
+                     do_qmp_dispatch(false,
-    ret = qobject_to(QDict, do_qmp_dispatch(req, false));
+                                     "{ 'execute': 'user_def_cmd' }"));
     assert(ret && qdict_size(ret) == 0);
-
     qobject_unref(ret);
-    qobject_unref(req);
 }
 
 static void test_dispatch_cmd_oob(void)
 {
-    QDict *req = qdict_new();
     QDict *ret;
 
-    qdict_put_str(req, "exec-oob", "test-flags-command");
+    ret = qobject_to(QDict,
-
+                     do_qmp_dispatch(true,
-    ret = qobject_to(QDict, do_qmp_dispatch(req, true));
+                                     "{ 'exec-oob': 'test-flags-command' }"));
     assert(ret && qdict_size(ret) == 0);
-
     qobject_unref(ret);
-    qobject_unref(req);
 }
 
 /* test commands that return an error due to invalid parameters */
 static void test_dispatch_cmd_failure(void)
 {
-    QDict *req = qdict_new();
+    /* missing arguments */
-    QDict *args = qdict_new();
+    do_qmp_dispatch_error(false, ERROR_CLASS_GENERIC_ERROR,
+                          "{ 'execute': 'user_def_cmd2' }");
 
-    qdict_put_str(req, "execute", "user_def_cmd2");
+    /* extra arguments */
-
+    do_qmp_dispatch_error(false, ERROR_CLASS_GENERIC_ERROR,
-    do_qmp_dispatch_error(req, false, ERROR_CLASS_GENERIC_ERROR);
+                          "{ 'execute': 'user_def_cmd',"
-
+                          " 'arguments': { 'a': 66 } }");
-    qobject_unref(req);
-
-    /* check that with extra arguments it throws an error */
-    req = qdict_new();
-    qdict_put_int(args, "a", 66);
-    qdict_put(req, "arguments", args);
-
-    qdict_put_str(req, "execute", "user_def_cmd");
-
-    do_qmp_dispatch_error(req, false, ERROR_CLASS_GENERIC_ERROR);
-
-    qobject_unref(req);
 }
 
 static void test_dispatch_cmd_success_response(void)
@@ -246,26 +243,15 @@ static void test_dispatch_cmd_success_response(void)
 /* test commands that involve both input parameters and return values */
 static void test_dispatch_cmd_io(void)
 {
-    QDict *req = qdict_new();
-    QDict *args = qdict_new();
-    QDict *args3 = qdict_new();
-    QDict *ud1a = qdict_new();
-    QDict *ud1b = qdict_new();
     QDict *ret, *ret_dict, *ret_dict_dict, *ret_dict_dict_userdef;
     QDict *ret_dict_dict2, *ret_dict_dict2_userdef;
     QNum *ret3;
     int64_t val;
 
-    qdict_put_int(ud1a, "integer", 42);
+    ret = qobject_to(QDict, do_qmp_dispatch(false,
-    qdict_put_str(ud1a, "string", "hello");
+        "{ 'execute': 'user_def_cmd2', 'arguments': {"
-    qdict_put_int(ud1b, "integer", 422);
+        " 'ud1a': { 'integer': 42, 'string': 'hello' },"
-    qdict_put_str(ud1b, "string", "hello2");
+        " 'ud1b': { 'integer': 422, 'string': 'hello2' } } }"));
-    qdict_put(args, "ud1a", ud1a);
-    qdict_put(args, "ud1b", ud1b);
-    qdict_put(req, "arguments", args);
-    qdict_put_str(req, "execute", "user_def_cmd2");
-
-    ret = qobject_to(QDict, do_qmp_dispatch(req, false));
 
     assert(!strcmp(qdict_get_str(ret, "string0"), "blah1"));
     ret_dict = qdict_get_qdict(ret, "dict1");
@@ -282,16 +268,11 @@ static void test_dispatch_cmd_io(void)
     assert(!strcmp(qdict_get_str(ret_dict_dict2, "string"), "blah4"));
     qobject_unref(ret);
 
-    qdict_put_int(args3, "a", 66);
+    ret3 = qobject_to(QNum, do_qmp_dispatch(false,
-    qdict_put(req, "arguments", args3);
+        "{ 'execute': 'guest-get-time', 'arguments': { 'a': 66 } }"));
-    qdict_put_str(req, "execute", "guest-get-time");
-
-    ret3 = qobject_to(QNum, do_qmp_dispatch(req, false));
     g_assert(qnum_get_try_int(ret3, &val));
     g_assert_cmpint(val, ==, 66);
     qobject_unref(ret3);
-
-    qobject_unref(req);
 }
 
 /* test generated dealloc functions for generated types */