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1/*
2 * Options Visitor unit-tests.
3 *
4 * Copyright (C) 2013 Red Hat, Inc.
5 *
6 * Authors:
7 * Laszlo Ersek <lersek@redhat.com> (based on test-string-output-visitor)
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 <glib.h>
14
15#include "qemu/config-file.h" /* qemu_add_opts() */
16#include "qemu/option.h" /* qemu_opts_parse() */
17#include "qapi/opts-visitor.h" /* opts_visitor_new() */
18#include "test-qapi-visit.h" /* visit_type_UserDefOptions() */
19#include "qapi/dealloc-visitor.h" /* qapi_dealloc_visitor_new() */
20
21static QemuOptsList userdef_opts = {
22 .name = "userdef",
23 .head = QTAILQ_HEAD_INITIALIZER(userdef_opts.head),
24 .desc = { { 0 } } /* validated with OptsVisitor */
25};
26
27/* fixture (= glib test case context) and test case manipulation */
28
29typedef struct OptsVisitorFixture {
30 UserDefOptions *userdef;
31 Error *err;
32} OptsVisitorFixture;
33
34
35static void
36setup_fixture(OptsVisitorFixture *f, gconstpointer test_data)
37{
38 const char *opts_string = test_data;
39 QemuOpts *opts;
40 OptsVisitor *ov;
41
42 opts = qemu_opts_parse(qemu_find_opts("userdef"), opts_string, 0);
43 g_assert(opts != NULL);
44
45 ov = opts_visitor_new(opts);
46 visit_type_UserDefOptions(opts_get_visitor(ov), &f->userdef, NULL,
47 &f->err);
48 opts_visitor_cleanup(ov);
49 qemu_opts_del(opts);
50}
51
52
53static void
54teardown_fixture(OptsVisitorFixture *f, gconstpointer test_data)
55{
56 if (f->userdef != NULL) {
57 QapiDeallocVisitor *dv;
58
59 dv = qapi_dealloc_visitor_new();
60 visit_type_UserDefOptions(qapi_dealloc_get_visitor(dv), &f->userdef,
61 NULL, NULL);
62 qapi_dealloc_visitor_cleanup(dv);
63 }
64 error_free(f->err);
65}
66
67
68static void
69add_test(const char *testpath,
70 void (*test_func)(OptsVisitorFixture *f, gconstpointer test_data),
71 gconstpointer test_data)
72{
73 g_test_add(testpath, OptsVisitorFixture, test_data, setup_fixture,
74 test_func, teardown_fixture);
75}
76
77/* test output evaluation */
78
79static void
80expect_ok(OptsVisitorFixture *f, gconstpointer test_data)
81{
82 g_assert(f->err == NULL);
83 g_assert(f->userdef != NULL);
84}
85
86
87static void
88expect_fail(OptsVisitorFixture *f, gconstpointer test_data)
89{
90 g_assert(f->err != NULL);
91
92 /* The error message is printed when this test utility is invoked directly
93 * (ie. without gtester) and the --verbose flag is passed:
94 *
95 * tests/test-opts-visitor --verbose
96 */
97 g_test_message("'%s': %s", (const char *)test_data,
98 error_get_pretty(f->err));
99}
100
101
102static void
103test_value(OptsVisitorFixture *f, gconstpointer test_data)
104{
105 uint64_t magic, bitval;
106 intList *i64;
107 uint64List *u64;
108 uint16List *u16;
109
110 expect_ok(f, test_data);
111
112 magic = 0;
113 for (i64 = f->userdef->i64; i64 != NULL; i64 = i64->next) {
114 g_assert(-16 <= i64->value && i64->value < 64-16);
115 bitval = 1ull << (i64->value + 16);
116 g_assert((magic & bitval) == 0);
117 magic |= bitval;
118 }
119 g_assert(magic == 0xDEADBEEF);
120
121 magic = 0;
122 for (u64 = f->userdef->u64; u64 != NULL; u64 = u64->next) {
123 g_assert(u64->value < 64);
124 bitval = 1ull << u64->value;
125 g_assert((magic & bitval) == 0);
126 magic |= bitval;
127 }
5cb6be2c 128 g_assert(magic == 0xBADC0FFEE0DDF00DULL);
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129
130 magic = 0;
131 for (u16 = f->userdef->u16; u16 != NULL; u16 = u16->next) {
132 g_assert(u16->value < 64);
133 bitval = 1ull << u16->value;
134 g_assert((magic & bitval) == 0);
135 magic |= bitval;
136 }
137 g_assert(magic == 0xD15EA5E);
138}
139
140
141static void
142expect_i64_min(OptsVisitorFixture *f, gconstpointer test_data)
143{
144 expect_ok(f, test_data);
145 g_assert(f->userdef->has_i64);
146 g_assert(f->userdef->i64->next == NULL);
147 g_assert(f->userdef->i64->value == INT64_MIN);
148}
149
150
151static void
152expect_i64_max(OptsVisitorFixture *f, gconstpointer test_data)
153{
154 expect_ok(f, test_data);
155 g_assert(f->userdef->has_i64);
156 g_assert(f->userdef->i64->next == NULL);
157 g_assert(f->userdef->i64->value == INT64_MAX);
158}
159
160
161static void
162expect_zero(OptsVisitorFixture *f, gconstpointer test_data)
163{
164 expect_ok(f, test_data);
165 g_assert(f->userdef->has_u64);
166 g_assert(f->userdef->u64->next == NULL);
167 g_assert(f->userdef->u64->value == 0);
168}
169
170
171static void
172expect_u64_max(OptsVisitorFixture *f, gconstpointer test_data)
173{
174 expect_ok(f, test_data);
175 g_assert(f->userdef->has_u64);
176 g_assert(f->userdef->u64->next == NULL);
177 g_assert(f->userdef->u64->value == UINT64_MAX);
178}
179
180/* test cases */
181
182int
183main(int argc, char **argv)
184{
185 g_test_init(&argc, &argv, NULL);
186
187 qemu_add_opts(&userdef_opts);
188
189 /* Three hexadecimal magic numbers, "dead beef", "bad coffee, odd food" and
190 * "disease", from
191 * <http://en.wikipedia.org/wiki/Magic_number_%28programming%29>, were
192 * converted to binary and dissected into bit ranges. Each magic number is
193 * going to be recomposed using the lists called "i64", "u64" and "u16",
194 * respectively.
195 *
196 * (Note that these types pertain to the individual bit shift counts, not
197 * the magic numbers themselves; the intent is to exercise opts_type_int()
198 * and opts_type_uint64().)
199 *
200 * The "i64" shift counts have been decreased by 16 (decimal) in order to
201 * test negative values as well. Finally, the full list of QemuOpt elements
202 * has been permuted with "shuf".
203 *
204 * Both "i64" and "u64" have some (distinct) single-element ranges
205 * represented as both "a" and "a-a". "u16" is a special case of "i64" (see
206 * visit_type_uint16()), so it wouldn't add a separate test in this regard.
207 */
208
209 add_test("/visitor/opts/flatten/value", &test_value,
210 "i64=-1-0,u64=12-16,u64=2-3,i64=-11--9,u64=57,u16=9,i64=5-5,"
211 "u16=1-4,u16=20,u64=63-63,i64=-16--13,u64=50-52,i64=14-15,u16=11,"
212 "i64=7,u16=18,i64=2-3,u16=6,u64=54-55,u64=0,u64=18-20,u64=33-43,"
213 "i64=9-12,u16=26-27,u64=59-61,u16=13-16,u64=29-31,u64=22-23,"
214 "u16=24,i64=-7--3");
215
216 add_test("/visitor/opts/i64/val1/errno", &expect_fail,
217 "i64=0x8000000000000000");
218 add_test("/visitor/opts/i64/val1/empty", &expect_fail, "i64=");
219 add_test("/visitor/opts/i64/val1/trailing", &expect_fail, "i64=5z");
220 add_test("/visitor/opts/i64/nonlist", &expect_fail, "i64x=5-6");
221 add_test("/visitor/opts/i64/val2/errno", &expect_fail,
222 "i64=0x7fffffffffffffff-0x8000000000000000");
223 add_test("/visitor/opts/i64/val2/empty", &expect_fail, "i64=5-");
224 add_test("/visitor/opts/i64/val2/trailing", &expect_fail, "i64=5-6z");
225 add_test("/visitor/opts/i64/range/empty", &expect_fail, "i64=6-5");
226 add_test("/visitor/opts/i64/range/minval", &expect_i64_min,
227 "i64=-0x8000000000000000--0x8000000000000000");
228 add_test("/visitor/opts/i64/range/maxval", &expect_i64_max,
229 "i64=0x7fffffffffffffff-0x7fffffffffffffff");
230
231 add_test("/visitor/opts/u64/val1/errno", &expect_fail, "u64=-1");
232 add_test("/visitor/opts/u64/val1/empty", &expect_fail, "u64=");
233 add_test("/visitor/opts/u64/val1/trailing", &expect_fail, "u64=5z");
234 add_test("/visitor/opts/u64/nonlist", &expect_fail, "u64x=5-6");
235 add_test("/visitor/opts/u64/val2/errno", &expect_fail,
236 "u64=0xffffffffffffffff-0x10000000000000000");
237 add_test("/visitor/opts/u64/val2/empty", &expect_fail, "u64=5-");
238 add_test("/visitor/opts/u64/val2/trailing", &expect_fail, "u64=5-6z");
239 add_test("/visitor/opts/u64/range/empty", &expect_fail, "u64=6-5");
240 add_test("/visitor/opts/u64/range/minval", &expect_zero, "u64=0-0");
241 add_test("/visitor/opts/u64/range/maxval", &expect_u64_max,
242 "u64=0xffffffffffffffff-0xffffffffffffffff");
243
244 /* Test maximum range sizes. The macro value is open-coded here
245 * *intentionally*; the test case must use concrete values by design. If
246 * OPTS_VISITOR_RANGE_MAX is changed, the following values need to be
247 * recalculated as well. The assert and this comment should help with it.
248 */
249 g_assert(OPTS_VISITOR_RANGE_MAX == 65536);
250
251 /* The unsigned case is simple, a u64-u64 difference can always be
252 * represented as a u64.
253 */
254 add_test("/visitor/opts/u64/range/max", &expect_ok, "u64=0-65535");
255 add_test("/visitor/opts/u64/range/2big", &expect_fail, "u64=0-65536");
256
257 /* The same cannot be said about an i64-i64 difference. */
258 add_test("/visitor/opts/i64/range/max/pos/a", &expect_ok,
259 "i64=0x7fffffffffff0000-0x7fffffffffffffff");
260 add_test("/visitor/opts/i64/range/max/pos/b", &expect_ok,
261 "i64=0x7ffffffffffeffff-0x7ffffffffffffffe");
262 add_test("/visitor/opts/i64/range/2big/pos", &expect_fail,
263 "i64=0x7ffffffffffeffff-0x7fffffffffffffff");
264 add_test("/visitor/opts/i64/range/max/neg/a", &expect_ok,
265 "i64=-0x8000000000000000--0x7fffffffffff0001");
266 add_test("/visitor/opts/i64/range/max/neg/b", &expect_ok,
267 "i64=-0x7fffffffffffffff--0x7fffffffffff0000");
268 add_test("/visitor/opts/i64/range/2big/neg", &expect_fail,
269 "i64=-0x8000000000000000--0x7fffffffffff0000");
270 add_test("/visitor/opts/i64/range/2big/full", &expect_fail,
271 "i64=-0x8000000000000000-0x7fffffffffffffff");
272
273 g_test_run();
274 return 0;
275}