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tests: Cover partial input visit of list 

Demonstrates a design flaw: there is no way to for input visitors to
report that a list visit didn't visit the complete input list.  The
generated list visits always do, but manual visits needn't.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1488544368-30622-24-git-send-email-armbru@redhat.com>
This commit is contained in:
Markus Armbruster 2017-03-03 13:32:43 +01:00
parent 3d089cea0d
commit 9cb8ef3668
3 changed files with 107 additions and 0 deletions
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41
tests/test-opts-visitor.c
View File

@ -172,6 +172,44 @@ expect_u64_max(OptsVisitorFixture *f, gconstpointer test_data)
/* test cases */
static void
test_opts_range_unvisited(void)
{
intList *list = NULL;
intList *tail;
QemuOpts *opts;
Visitor *v;
opts = qemu_opts_parse(qemu_find_opts("userdef"), "ilist=0-2", false,
&error_abort);
v = opts_visitor_new(opts);
visit_start_struct(v, NULL, NULL, 0, &error_abort);
/* Would be simpler if the visitor genuinely supported virtual walks */
visit_start_list(v, "ilist", (GenericList **)&list, sizeof(*list),
&error_abort);
tail = list;
visit_type_int(v, NULL, &tail->value, &error_abort);
g_assert_cmpint(tail->value, ==, 0);
tail = (intList *)visit_next_list(v, (GenericList *)tail, sizeof(*list));
g_assert(tail);
visit_type_int(v, NULL, &tail->value, &error_abort);
g_assert_cmpint(tail->value, ==, 1);
tail = (intList *)visit_next_list(v, (GenericList *)tail, sizeof(*list));
g_assert(tail);
visit_end_list(v, (void **)&list);
/* BUG: unvisited tail not reported; actually not reportable by design */
visit_check_struct(v, &error_abort);
visit_end_struct(v, NULL);
qapi_free_intList(list);
visit_free(v);
qemu_opts_del(opts);
}
int
main(int argc, char **argv)
{
@ -263,6 +301,9 @@ main(int argc, char **argv)
add_test("/visitor/opts/i64/range/2big/full", &expect_fail,
"i64=-0x8000000000000000-0x7fffffffffffffff");
g_test_add_func("/visitor/opts/range/unvisited",
test_opts_range_unvisited);
g_test_run();
return 0;
}

44
tests/test-qobject-input-visitor.c
View File

@ -923,6 +923,46 @@ static void test_visitor_in_fail_struct_missing(TestInputVisitorData *data,
visit_end_struct(v, NULL);
}
static void test_visitor_in_fail_list(TestInputVisitorData *data,
const void *unused)
{
int64_t i64 = -1;
Visitor *v;
/* Unvisited list tail */
v = visitor_input_test_init(data, "[ 1, 2, 3 ]");
visit_start_list(v, NULL, NULL, 0, &error_abort);
visit_type_int(v, NULL, &i64, &error_abort);
g_assert_cmpint(i64, ==, 1);
visit_type_int(v, NULL, &i64, &error_abort);
g_assert_cmpint(i64, ==, 2);
visit_end_list(v, NULL);
/* BUG: unvisited tail not reported; actually not reportable by design */
}
static void test_visitor_in_fail_list_nested(TestInputVisitorData *data,
const void *unused)
{
int64_t i64 = -1;
Visitor *v;
/* Unvisited nested list tail */
v = visitor_input_test_init(data, "[ 0, [ 1, 2, 3 ] ]");
visit_start_list(v, NULL, NULL, 0, &error_abort);
visit_type_int(v, NULL, &i64, &error_abort);
g_assert_cmpint(i64, ==, 0);
visit_start_list(v, NULL, NULL, 0, &error_abort);
visit_type_int(v, NULL, &i64, &error_abort);
g_assert_cmpint(i64, ==, 1);
visit_end_list(v, NULL);
/* BUG: unvisited tail not reported; actually not reportable by design */
visit_end_list(v, NULL);
}
static void test_visitor_in_fail_union_native_list(TestInputVisitorData *data,
const void *unused)
{
@ -1070,6 +1110,10 @@ int main(int argc, char **argv)
NULL, test_visitor_in_fail_struct_in_list);
input_visitor_test_add("/visitor/input/fail/struct-missing",
NULL, test_visitor_in_fail_struct_missing);
input_visitor_test_add("/visitor/input/fail/list",
NULL, test_visitor_in_fail_list);
input_visitor_test_add("/visitor/input/fail/list-nested",
NULL, test_visitor_in_fail_list_nested);
input_visitor_test_add("/visitor/input/fail/union-flat",
NULL, test_visitor_in_fail_union_flat);
input_visitor_test_add("/visitor/input/fail/union-flat-no-discriminator",

22
tests/test-string-input-visitor.c
View File

@ -121,6 +121,7 @@ static void test_visitor_in_intList(TestInputVisitorData *data,
uint64_t expect4[] = { UINT64_MAX };
Error *err = NULL;
int64List *res = NULL;
int64List *tail;
Visitor *v;
/* Valid lists */
@ -151,6 +152,27 @@ static void test_visitor_in_intList(TestInputVisitorData *data,
visit_type_int64List(v, NULL, &res, &err);
error_free_or_abort(&err);
g_assert(!res);
/* Unvisited list tail */
v = visitor_input_test_init(data, "0,2-3");
/* Would be simpler if the visitor genuinely supported virtual walks */
visit_start_list(v, NULL, (GenericList **)&res, sizeof(*res),
&error_abort);
tail = res;
visit_type_int64(v, NULL, &tail->value, &error_abort);
g_assert_cmpint(tail->value, ==, 0);
tail = (int64List *)visit_next_list(v, (GenericList *)tail, sizeof(*res));
g_assert(tail);
visit_type_int64(v, NULL, &tail->value, &error_abort);
g_assert_cmpint(tail->value, ==, 2);
tail = (int64List *)visit_next_list(v, (GenericList *)tail, sizeof(*res));
g_assert(tail);
visit_end_list(v, (void **)&res);
/* BUG: unvisited tail not reported; actually not reportable by design */
qapi_free_int64List(res);
}
static void test_visitor_in_bool(TestInputVisitorData *data,