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[qemu.git] / tests / qmp-cmd-test.c
1 /*
2  * QMP command test cases
3  *
4  * Copyright (c) 2017 Red Hat Inc.
5  *
6  * Authors:
7  *  Markus Armbruster <[email protected]>
8  *
9  * This work is licensed under the terms of the GNU GPL, version 2 or later.
10  * See the COPYING file in the top-level directory.
11  */
12
13 #include "qemu/osdep.h"
14 #include "libqtest.h"
15 #include "qapi/error.h"
16 #include "qapi/qapi-visit-introspect.h"
17 #include "qapi/qmp/qdict.h"
18 #include "qapi/qobject-input-visitor.h"
19
20 const char common_args[] = "-nodefaults -machine none";
21
22 /* Query smoke tests */
23
24 static int query_error_class(const char *cmd)
25 {
26     static struct {
27         const char *cmd;
28         int err_class;
29     } fails[] = {
30         /* Success depends on build configuration: */
31 #ifndef CONFIG_SPICE
32         { "query-spice", ERROR_CLASS_COMMAND_NOT_FOUND },
33 #endif
34 #ifndef CONFIG_VNC
35         { "query-vnc", ERROR_CLASS_GENERIC_ERROR },
36         { "query-vnc-servers", ERROR_CLASS_GENERIC_ERROR },
37 #endif
38 #ifndef CONFIG_REPLICATION
39         { "query-xen-replication-status", ERROR_CLASS_COMMAND_NOT_FOUND },
40 #endif
41         /* Likewise, and require special QEMU command-line arguments: */
42         { "query-acpi-ospm-status", ERROR_CLASS_GENERIC_ERROR },
43         { "query-balloon", ERROR_CLASS_DEVICE_NOT_ACTIVE },
44         { "query-hotpluggable-cpus", ERROR_CLASS_GENERIC_ERROR },
45         { "query-vm-generation-id", ERROR_CLASS_GENERIC_ERROR },
46         { NULL, -1 }
47     };
48     int i;
49
50     for (i = 0; fails[i].cmd; i++) {
51         if (!strcmp(cmd, fails[i].cmd)) {
52             return fails[i].err_class;
53         }
54     }
55     return -1;
56 }
57
58 static void test_query(const void *data)
59 {
60     const char *cmd = data;
61     int expected_error_class = query_error_class(cmd);
62     QDict *resp, *error;
63     const char *error_class;
64
65     qtest_start(common_args);
66
67     resp = qmp("{ 'execute': %s }", cmd);
68     error = qdict_get_qdict(resp, "error");
69     error_class = error ? qdict_get_str(error, "class") : NULL;
70
71     if (expected_error_class < 0) {
72         g_assert(qdict_haskey(resp, "return"));
73     } else {
74         g_assert(error);
75         g_assert_cmpint(qapi_enum_parse(&QapiErrorClass_lookup, error_class,
76                                         -1, &error_abort),
77                         ==, expected_error_class);
78     }
79     qobject_unref(resp);
80
81     qtest_end();
82 }
83
84 static bool query_is_blacklisted(const char *cmd)
85 {
86     const char *blacklist[] = {
87         /* Not actually queries: */
88         "add-fd",
89         /* Success depends on target arch: */
90         "query-cpu-definitions",  /* arm, i386, ppc, s390x */
91         "query-gic-capabilities", /* arm */
92         /* Success depends on target-specific build configuration: */
93         "query-pci",              /* CONFIG_PCI */
94         /* Success depends on launching SEV guest */
95         "query-sev-launch-measure",
96         /* Success depends on Host or Hypervisor SEV support */
97         "query-sev",
98         "query-sev-capabilities",
99         NULL
100     };
101     int i;
102
103     for (i = 0; blacklist[i]; i++) {
104         if (!strcmp(cmd, blacklist[i])) {
105             return true;
106         }
107     }
108     return false;
109 }
110
111 typedef struct {
112     SchemaInfoList *list;
113     GHashTable *hash;
114 } QmpSchema;
115
116 static void qmp_schema_init(QmpSchema *schema)
117 {
118     QDict *resp;
119     Visitor *qiv;
120     SchemaInfoList *tail;
121
122     qtest_start(common_args);
123     resp = qmp("{ 'execute': 'query-qmp-schema' }");
124
125     qiv = qobject_input_visitor_new(qdict_get(resp, "return"));
126     visit_type_SchemaInfoList(qiv, NULL, &schema->list, &error_abort);
127     visit_free(qiv);
128
129     qobject_unref(resp);
130     qtest_end();
131
132     schema->hash = g_hash_table_new(g_str_hash, g_str_equal);
133
134     /* Build @schema: hash table mapping entity name to SchemaInfo */
135     for (tail = schema->list; tail; tail = tail->next) {
136         g_hash_table_insert(schema->hash, tail->value->name, tail->value);
137     }
138 }
139
140 static SchemaInfo *qmp_schema_lookup(QmpSchema *schema, const char *name)
141 {
142     return g_hash_table_lookup(schema->hash, name);
143 }
144
145 static void qmp_schema_cleanup(QmpSchema *schema)
146 {
147     qapi_free_SchemaInfoList(schema->list);
148     g_hash_table_destroy(schema->hash);
149 }
150
151 static bool object_type_has_mandatory_members(SchemaInfo *type)
152 {
153     SchemaInfoObjectMemberList *tail;
154
155     g_assert(type->meta_type == SCHEMA_META_TYPE_OBJECT);
156
157     for (tail = type->u.object.members; tail; tail = tail->next) {
158         if (!tail->value->has_q_default) {
159             return true;
160         }
161     }
162
163     return false;
164 }
165
166 static void add_query_tests(QmpSchema *schema)
167 {
168     SchemaInfoList *tail;
169     SchemaInfo *si, *arg_type, *ret_type;
170     char *test_name;
171
172     /* Test the query-like commands */
173     for (tail = schema->list; tail; tail = tail->next) {
174         si = tail->value;
175         if (si->meta_type != SCHEMA_META_TYPE_COMMAND) {
176             continue;
177         }
178
179         if (query_is_blacklisted(si->name)) {
180             continue;
181         }
182
183         arg_type = qmp_schema_lookup(schema, si->u.command.arg_type);
184         if (object_type_has_mandatory_members(arg_type)) {
185             continue;
186         }
187
188         ret_type = qmp_schema_lookup(schema, si->u.command.ret_type);
189         if (ret_type->meta_type == SCHEMA_META_TYPE_OBJECT
190             && !ret_type->u.object.members) {
191             continue;
192         }
193
194         test_name = g_strdup_printf("qmp/%s", si->name);
195         qtest_add_data_func(test_name, si->name, test_query);
196         g_free(test_name);
197     }
198 }
199
200 static void test_object_add_without_props(void)
201 {
202     QTestState *qts;
203     QDict *resp;
204
205     qts = qtest_init(common_args);
206     resp = qtest_qmp(qts, "{'execute': 'object-add', 'arguments':"
207                     " {'qom-type': 'memory-backend-ram', 'id': 'ram1' } }");
208     g_assert_nonnull(resp);
209     qmp_assert_error_class(resp, "GenericError");
210     qtest_quit(qts);
211 }
212
213 int main(int argc, char *argv[])
214 {
215     QmpSchema schema;
216     int ret;
217
218     g_test_init(&argc, &argv, NULL);
219
220     qmp_schema_init(&schema);
221     add_query_tests(&schema);
222
223     qtest_add_func("qmp/object-add-without-props",
224                    test_object_add_without_props);
225     /* TODO: add coverage of generic object-add failure modes */
226
227     ret = g_test_run();
228
229     qmp_schema_cleanup(&schema);
230     return ret;
231 }
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