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>
353 lines
9.5 KiB
C
353 lines
9.5 KiB
C
/*
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* String Input Visitor unit-tests.
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*
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* Copyright (C) 2012 Red Hat Inc.
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*
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* Authors:
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* Paolo Bonzini <pbonzini@redhat.com> (based on test-qobject-input-visitor)
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#include "qemu/osdep.h"
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#include "qemu-common.h"
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#include "qapi/error.h"
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#include "qapi/string-input-visitor.h"
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#include "test-qapi-types.h"
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#include "test-qapi-visit.h"
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#include "qapi/qmp/types.h"
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typedef struct TestInputVisitorData {
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Visitor *v;
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} TestInputVisitorData;
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static void visitor_input_teardown(TestInputVisitorData *data,
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const void *unused)
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{
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if (data->v) {
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visit_free(data->v);
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data->v = NULL;
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}
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}
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/* This is provided instead of a test setup function so that the JSON
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string used by the tests are kept in the test functions (and not
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int main()) */
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static
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Visitor *visitor_input_test_init(TestInputVisitorData *data,
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const char *string)
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{
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visitor_input_teardown(data, NULL);
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data->v = string_input_visitor_new(string);
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g_assert(data->v);
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return data->v;
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}
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static void test_visitor_in_int(TestInputVisitorData *data,
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const void *unused)
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{
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int64_t res = 0, value = -42;
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Error *err = NULL;
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Visitor *v;
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v = visitor_input_test_init(data, "-42");
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visit_type_int(v, NULL, &res, &err);
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g_assert(!err);
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g_assert_cmpint(res, ==, value);
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v = visitor_input_test_init(data, "not an int");
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visit_type_int(v, NULL, &res, &err);
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error_free_or_abort(&err);
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}
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static void check_ilist(Visitor *v, int64_t *expected, size_t n)
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{
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int64List *res = NULL;
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int64List *tail;
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int i;
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visit_type_int64List(v, NULL, &res, &error_abort);
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tail = res;
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for (i = 0; i < n; i++) {
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g_assert(tail);
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g_assert_cmpint(tail->value, ==, expected[i]);
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tail = tail->next;
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}
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g_assert(!tail);
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qapi_free_int64List(res);
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}
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static void check_ulist(Visitor *v, uint64_t *expected, size_t n)
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{
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uint64List *res = NULL;
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uint64List *tail;
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int i;
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/* BUG: unsigned numbers above INT64_MAX don't work */
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for (i = 0; i < n; i++) {
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if (expected[i] > INT64_MAX) {
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Error *err = NULL;
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visit_type_uint64List(v, NULL, &res, &err);
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error_free_or_abort(&err);
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return;
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}
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}
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visit_type_uint64List(v, NULL, &res, &error_abort);
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tail = res;
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for (i = 0; i < n; i++) {
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g_assert(tail);
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g_assert_cmpuint(tail->value, ==, expected[i]);
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tail = tail->next;
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}
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g_assert(!tail);
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qapi_free_uint64List(res);
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}
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static void test_visitor_in_intList(TestInputVisitorData *data,
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const void *unused)
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{
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/* Note: the visitor *sorts* ranges *unsigned* */
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int64_t expect1[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 20 };
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int64_t expect2[] = { 32767, -32768, -32767 };
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int64_t expect3[] = { INT64_MAX, INT64_MIN };
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uint64_t expect4[] = { UINT64_MAX };
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Error *err = NULL;
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int64List *res = NULL;
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int64List *tail;
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Visitor *v;
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/* Valid lists */
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v = visitor_input_test_init(data, "1,2,0,2-4,20,5-9,1-8");
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check_ilist(v, expect1, ARRAY_SIZE(expect1));
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v = visitor_input_test_init(data, "32767,-32768--32767");
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check_ilist(v, expect2, ARRAY_SIZE(expect2));
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v = visitor_input_test_init(data,
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"-9223372036854775808,9223372036854775807");
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check_ilist(v, expect3, ARRAY_SIZE(expect3));
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v = visitor_input_test_init(data, "18446744073709551615");
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check_ulist(v, expect4, ARRAY_SIZE(expect4));
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/* Empty list is invalid (weird) */
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v = visitor_input_test_init(data, "");
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visit_type_int64List(v, NULL, &res, &err);
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error_free_or_abort(&err);
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/* Not a list */
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v = visitor_input_test_init(data, "not an int list");
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visit_type_int64List(v, NULL, &res, &err);
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error_free_or_abort(&err);
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g_assert(!res);
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/* Unvisited list tail */
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v = visitor_input_test_init(data, "0,2-3");
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/* Would be simpler if the visitor genuinely supported virtual walks */
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visit_start_list(v, NULL, (GenericList **)&res, sizeof(*res),
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&error_abort);
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tail = res;
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visit_type_int64(v, NULL, &tail->value, &error_abort);
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g_assert_cmpint(tail->value, ==, 0);
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tail = (int64List *)visit_next_list(v, (GenericList *)tail, sizeof(*res));
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g_assert(tail);
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visit_type_int64(v, NULL, &tail->value, &error_abort);
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g_assert_cmpint(tail->value, ==, 2);
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tail = (int64List *)visit_next_list(v, (GenericList *)tail, sizeof(*res));
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g_assert(tail);
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visit_end_list(v, (void **)&res);
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/* BUG: unvisited tail not reported; actually not reportable by design */
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qapi_free_int64List(res);
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}
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static void test_visitor_in_bool(TestInputVisitorData *data,
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const void *unused)
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{
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Error *err = NULL;
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bool res = false;
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Visitor *v;
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v = visitor_input_test_init(data, "true");
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visit_type_bool(v, NULL, &res, &err);
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g_assert(!err);
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g_assert_cmpint(res, ==, true);
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v = visitor_input_test_init(data, "yes");
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visit_type_bool(v, NULL, &res, &err);
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g_assert(!err);
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g_assert_cmpint(res, ==, true);
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v = visitor_input_test_init(data, "on");
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visit_type_bool(v, NULL, &res, &err);
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g_assert(!err);
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g_assert_cmpint(res, ==, true);
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v = visitor_input_test_init(data, "false");
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visit_type_bool(v, NULL, &res, &err);
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g_assert(!err);
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g_assert_cmpint(res, ==, false);
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v = visitor_input_test_init(data, "no");
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visit_type_bool(v, NULL, &res, &err);
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g_assert(!err);
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g_assert_cmpint(res, ==, false);
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v = visitor_input_test_init(data, "off");
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visit_type_bool(v, NULL, &res, &err);
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g_assert(!err);
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g_assert_cmpint(res, ==, false);
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}
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static void test_visitor_in_number(TestInputVisitorData *data,
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const void *unused)
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{
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double res = 0, value = 3.14;
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Error *err = NULL;
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Visitor *v;
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v = visitor_input_test_init(data, "3.14");
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visit_type_number(v, NULL, &res, &err);
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g_assert(!err);
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g_assert_cmpfloat(res, ==, value);
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}
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static void test_visitor_in_string(TestInputVisitorData *data,
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const void *unused)
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{
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char *res = NULL, *value = (char *) "Q E M U";
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Error *err = NULL;
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Visitor *v;
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v = visitor_input_test_init(data, value);
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visit_type_str(v, NULL, &res, &err);
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g_assert(!err);
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g_assert_cmpstr(res, ==, value);
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g_free(res);
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}
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static void test_visitor_in_enum(TestInputVisitorData *data,
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const void *unused)
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{
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Error *err = NULL;
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Visitor *v;
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EnumOne i;
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for (i = 0; EnumOne_lookup[i]; i++) {
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EnumOne res = -1;
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v = visitor_input_test_init(data, EnumOne_lookup[i]);
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visit_type_EnumOne(v, NULL, &res, &err);
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g_assert(!err);
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g_assert_cmpint(i, ==, res);
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}
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}
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/* Try to crash the visitors */
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static void test_visitor_in_fuzz(TestInputVisitorData *data,
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const void *unused)
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{
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int64_t ires;
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intList *ilres;
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bool bres;
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double nres;
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char *sres;
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EnumOne eres;
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Visitor *v;
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unsigned int i;
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char buf[10000];
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for (i = 0; i < 100; i++) {
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unsigned int j;
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j = g_test_rand_int_range(0, sizeof(buf) - 1);
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buf[j] = '\0';
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if (j != 0) {
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for (j--; j != 0; j--) {
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buf[j - 1] = (char)g_test_rand_int_range(0, 256);
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}
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}
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v = visitor_input_test_init(data, buf);
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visit_type_int(v, NULL, &ires, NULL);
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v = visitor_input_test_init(data, buf);
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visit_type_intList(v, NULL, &ilres, NULL);
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qapi_free_intList(ilres);
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v = visitor_input_test_init(data, buf);
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visit_type_bool(v, NULL, &bres, NULL);
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v = visitor_input_test_init(data, buf);
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visit_type_number(v, NULL, &nres, NULL);
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v = visitor_input_test_init(data, buf);
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sres = NULL;
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visit_type_str(v, NULL, &sres, NULL);
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g_free(sres);
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v = visitor_input_test_init(data, buf);
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visit_type_EnumOne(v, NULL, &eres, NULL);
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}
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}
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static void input_visitor_test_add(const char *testpath,
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TestInputVisitorData *data,
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void (*test_func)(TestInputVisitorData *data, const void *user_data))
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{
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g_test_add(testpath, TestInputVisitorData, data, NULL, test_func,
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visitor_input_teardown);
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}
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int main(int argc, char **argv)
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{
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TestInputVisitorData in_visitor_data;
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g_test_init(&argc, &argv, NULL);
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input_visitor_test_add("/string-visitor/input/int",
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&in_visitor_data, test_visitor_in_int);
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input_visitor_test_add("/string-visitor/input/intList",
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&in_visitor_data, test_visitor_in_intList);
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input_visitor_test_add("/string-visitor/input/bool",
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&in_visitor_data, test_visitor_in_bool);
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input_visitor_test_add("/string-visitor/input/number",
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&in_visitor_data, test_visitor_in_number);
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input_visitor_test_add("/string-visitor/input/string",
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&in_visitor_data, test_visitor_in_string);
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input_visitor_test_add("/string-visitor/input/enum",
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&in_visitor_data, test_visitor_in_enum);
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input_visitor_test_add("/string-visitor/input/fuzz",
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&in_visitor_data, test_visitor_in_fuzz);
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g_test_run();
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return 0;
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}
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