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libvirt/tests/virhashtest.c
Erik Skultety 353de572a6 util: Refactor virHashForEach so it returns as soon as an iterator fails 
The method will now return 0 on success and -1 on error, rather than number of
items which it iterated over before it returned back to the caller. Since the
only place where we actually check the number of elements iterated is in
virhashtest, return value of 0 and -1 can be a pretty accurate hint that it
iterated over all the items. However, if we really want to know the number of
items iterated over (like virhashtest does), a counter has to be provided
through opaque data to each iterator call. This patch adjusts return value of
virHashForEach, refactors the body, so it returns as soon as one of the
iterators fail and adjusts virhashtest to reflect these changes.

Signed-off-by: Erik Skultety <eskultet@redhat.com>
2016-02-17 12:46:34 +01:00

643 lines
16 KiB
C
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#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "internal.h"
#include "virhash.h"
#include "virhashdata.h"
#include "testutils.h"
#include "viralloc.h"
#include "virlog.h"
#include "virstring.h"
#define VIR_FROM_THIS VIR_FROM_NONE
VIR_LOG_INIT("tests.hashtest");
static virHashTablePtr
testHashInit(int size)
{
virHashTablePtr hash;
ssize_t i;
if (!(hash = virHashCreate(size, NULL)))
return NULL;
/* entires are added in reverse order so that they will be linked in
* collision list in the same order as in the uuids array
*/
for (i = ARRAY_CARDINALITY(uuids) - 1; i >= 0; i--) {
ssize_t oldsize = virHashTableSize(hash);
if (virHashAddEntry(hash, uuids[i], (void *) uuids[i]) < 0) {
virHashFree(hash);
return NULL;
}
if (virHashTableSize(hash) != oldsize) {
VIR_TEST_DEBUG("hash grown from %zd to %zd",
(size_t)oldsize, (size_t)virHashTableSize(hash));
}
}
for (i = 0; i < ARRAY_CARDINALITY(uuids); i++) {
if (!virHashLookup(hash, uuids[i])) {
VIR_TEST_VERBOSE("\nentry \"%s\" could not be found\n", uuids[i]);
virHashFree(hash);
return NULL;
}
}
if (size && size != virHashTableSize(hash))
VIR_TEST_DEBUG("\n");
return hash;
}
static int
testHashCheckForEachCount(void *payload ATTRIBUTE_UNUSED,
const void *name ATTRIBUTE_UNUSED,
void *data ATTRIBUTE_UNUSED)
{
size_t *count = data;
*count += 1;
return 0;
}
static int
testHashCheckCount(virHashTablePtr hash, size_t count)
{
size_t iter_count = 0;
if (virHashSize(hash) != count) {
VIR_TEST_VERBOSE("\nhash contains %zd instead of %zu elements\n",
virHashSize(hash), count);
return -1;
}
virHashForEach(hash, testHashCheckForEachCount, &iter_count);
if (count != iter_count) {
VIR_TEST_VERBOSE("\nhash claims to have %zu elements but iteration"
"finds %zu\n", count, iter_count);
return -1;
}
return 0;
}
struct testInfo {
void *data;
size_t count;
};
static int
testHashGrow(const void *data)
{
const struct testInfo *info = data;
virHashTablePtr hash;
int ret = -1;
if (!(hash = testHashInit(info->count)))
return -1;
if (testHashCheckCount(hash, ARRAY_CARDINALITY(uuids)) < 0)
goto cleanup;
ret = 0;
cleanup:
virHashFree(hash);
return ret;
}
static int
testHashUpdate(const void *data ATTRIBUTE_UNUSED)
{
int count = ARRAY_CARDINALITY(uuids) + ARRAY_CARDINALITY(uuids_new);
virHashTablePtr hash;
size_t i;
int ret = -1;
if (!(hash = testHashInit(0)))
return -1;
for (i = 0; i < ARRAY_CARDINALITY(uuids_subset); i++) {
if (virHashUpdateEntry(hash, uuids_subset[i], (void *) 1) < 0) {
VIR_TEST_VERBOSE("\nentry \"%s\" could not be updated\n",
uuids_subset[i]);
goto cleanup;
}
}
for (i = 0; i < ARRAY_CARDINALITY(uuids_new); i++) {
if (virHashUpdateEntry(hash, uuids_new[i], (void *) 1) < 0) {
VIR_TEST_VERBOSE("\nnew entry \"%s\" could not be updated\n",
uuids_new[i]);
goto cleanup;
}
}
if (testHashCheckCount(hash, count) < 0)
goto cleanup;
ret = 0;
cleanup:
virHashFree(hash);
return ret;
}
static int
testHashRemove(const void *data ATTRIBUTE_UNUSED)
{
int count = ARRAY_CARDINALITY(uuids) - ARRAY_CARDINALITY(uuids_subset);
virHashTablePtr hash;
size_t i;
int ret = -1;
if (!(hash = testHashInit(0)))
return -1;
for (i = 0; i < ARRAY_CARDINALITY(uuids_subset); i++) {
if (virHashRemoveEntry(hash, uuids_subset[i]) < 0) {
VIR_TEST_VERBOSE("\nentry \"%s\" could not be removed\n",
uuids_subset[i]);
goto cleanup;
}
}
if (testHashCheckCount(hash, count) < 0)
goto cleanup;
ret = 0;
cleanup:
virHashFree(hash);
return ret;
}
const int testHashCountRemoveForEachSome =
ARRAY_CARDINALITY(uuids) - ARRAY_CARDINALITY(uuids_subset);
static int
testHashRemoveForEachSome(void *payload ATTRIBUTE_UNUSED,
const void *name,
void *data)
{
virHashTablePtr hash = data;
size_t i;
for (i = 0; i < ARRAY_CARDINALITY(uuids_subset); i++) {
if (STREQ(uuids_subset[i], name)) {
if (virHashRemoveEntry(hash, name) < 0) {
VIR_TEST_VERBOSE("\nentry \"%s\" could not be removed",
uuids_subset[i]);
}
break;
}
}
return 0;
}
const int testHashCountRemoveForEachAll = 0;
static int
testHashRemoveForEachAll(void *payload ATTRIBUTE_UNUSED,
const void *name,
void *data)
{
virHashTablePtr hash = data;
virHashRemoveEntry(hash, name);
return 0;
}
const int testHashCountRemoveForEachForbidden = ARRAY_CARDINALITY(uuids);
static int
testHashRemoveForEachForbidden(void *payload ATTRIBUTE_UNUSED,
const void *name,
void *data)
{
virHashTablePtr hash = data;
size_t i;
for (i = 0; i < ARRAY_CARDINALITY(uuids_subset); i++) {
if (STREQ(uuids_subset[i], name)) {
int next = (i + 1) % ARRAY_CARDINALITY(uuids_subset);
if (virHashRemoveEntry(hash, uuids_subset[next]) == 0) {
VIR_TEST_VERBOSE(
"\nentry \"%s\" should not be allowed to be removed",
uuids_subset[next]);
}
break;
}
}
return 0;
}
static int
testHashRemoveForEach(const void *data)
{
const struct testInfo *info = data;
virHashTablePtr hash;
int ret = -1;
if (!(hash = testHashInit(0)))
return -1;
if (virHashForEach(hash, (virHashIterator) info->data, hash)) {
VIR_TEST_VERBOSE("\nvirHashForEach didn't go through all entries");
goto cleanup;
}
if (testHashCheckCount(hash, info->count) < 0)
goto cleanup;
ret = 0;
cleanup:
virHashFree(hash);
return ret;
}
static int
testHashSteal(const void *data ATTRIBUTE_UNUSED)
{
int count = ARRAY_CARDINALITY(uuids) - ARRAY_CARDINALITY(uuids_subset);
virHashTablePtr hash;
size_t i;
int ret = -1;
if (!(hash = testHashInit(0)))
return -1;
for (i = 0; i < ARRAY_CARDINALITY(uuids_subset); i++) {
if (!virHashSteal(hash, uuids_subset[i])) {
VIR_TEST_VERBOSE("\nentry \"%s\" could not be stolen\n",
uuids_subset[i]);
goto cleanup;
}
}
if (testHashCheckCount(hash, count) < 0)
goto cleanup;
ret = 0;
cleanup:
virHashFree(hash);
return ret;
}
static int
testHashIter(void *payload ATTRIBUTE_UNUSED,
const void *name ATTRIBUTE_UNUSED,
void *data ATTRIBUTE_UNUSED)
{
return 0;
}
static int
testHashForEachIter(void *payload ATTRIBUTE_UNUSED,
const void *name ATTRIBUTE_UNUSED,
void *data)
{
virHashTablePtr hash = data;
if (virHashAddEntry(hash, uuids_new[0], NULL) == 0)
VIR_TEST_VERBOSE("\nadding entries in ForEach should be forbidden");
if (virHashUpdateEntry(hash, uuids_new[0], NULL) == 0)
VIR_TEST_VERBOSE("\nupdating entries in ForEach should be forbidden");
if (virHashSteal(hash, uuids_new[0]) != NULL)
VIR_TEST_VERBOSE("\nstealing entries in ForEach should be forbidden");
if (virHashSteal(hash, uuids_new[0]) != NULL)
VIR_TEST_VERBOSE("\nstealing entries in ForEach should be forbidden");
if (virHashForEach(hash, testHashIter, NULL) >= 0)
VIR_TEST_VERBOSE("\niterating through hash in ForEach"
" should be forbidden");
return 0;
}
static int
testHashForEach(const void *data ATTRIBUTE_UNUSED)
{
virHashTablePtr hash;
int ret = -1;
if (!(hash = testHashInit(0)))
return -1;
if (virHashForEach(hash, testHashForEachIter, hash)) {
VIR_TEST_VERBOSE("\nvirHashForEach didn't go through all entries");
goto cleanup;
}
ret = 0;
cleanup:
virHashFree(hash);
return ret;
}
static int
testHashRemoveSetIter(const void *payload ATTRIBUTE_UNUSED,
const void *name,
const void *data)
{
int *count = (int *) data;
bool rem = false;
size_t i;
for (i = 0; i < ARRAY_CARDINALITY(uuids_subset); i++) {
if (STREQ(uuids_subset[i], name)) {
rem = true;
break;
}
}
if (rem || rand() % 2) {
(*count)++;
return 1;
} else {
return 0;
}
}
static int
testHashRemoveSet(const void *data ATTRIBUTE_UNUSED)
{
virHashTablePtr hash;
int count = 0;
int rcount;
int ret = -1;
if (!(hash = testHashInit(0)))
return -1;
/* seed the generator so that rand() provides reproducible sequence */
srand(9000);
rcount = virHashRemoveSet(hash, testHashRemoveSetIter, &count);
if (count != rcount) {
VIR_TEST_VERBOSE("\nvirHashRemoveSet didn't remove expected number of"
" entries, %d != %u\n",
rcount, count);
goto cleanup;
}
if (testHashCheckCount(hash, ARRAY_CARDINALITY(uuids) - count) < 0)
goto cleanup;
ret = 0;
cleanup:
virHashFree(hash);
return ret;
}
const int testSearchIndex = ARRAY_CARDINALITY(uuids_subset) / 2;
static int
testHashSearchIter(const void *payload ATTRIBUTE_UNUSED,
const void *name,
const void *data ATTRIBUTE_UNUSED)
{
return STREQ(uuids_subset[testSearchIndex], name);
}
static int
testHashSearch(const void *data ATTRIBUTE_UNUSED)
{
virHashTablePtr hash;
void *entry;
int ret = -1;
if (!(hash = testHashInit(0)))
return -1;
entry = virHashSearch(hash, testHashSearchIter, NULL);
if (!entry || STRNEQ(uuids_subset[testSearchIndex], entry)) {
VIR_TEST_VERBOSE("\nvirHashSearch didn't find entry '%s'\n",
uuids_subset[testSearchIndex]);
goto cleanup;
}
if (testHashCheckCount(hash, ARRAY_CARDINALITY(uuids)) < 0)
goto cleanup;
ret = 0;
cleanup:
virHashFree(hash);
return ret;
}
static int
testHashGetItemsCompKey(const virHashKeyValuePair *a,
const virHashKeyValuePair *b)
{
return strcmp(a->key, b->key);
}
static int
testHashGetItemsCompValue(const virHashKeyValuePair *a,
const virHashKeyValuePair *b)
{
return strcmp(a->value, b->value);
}
static int
testHashGetItems(const void *data ATTRIBUTE_UNUSED)
{
virHashTablePtr hash;
virHashKeyValuePairPtr array = NULL;
int ret = -1;
char keya[] = "a";
char keyb[] = "b";
char keyc[] = "c";
char value1[] = "1";
char value2[] = "2";
char value3[] = "3";
if (!(hash = virHashCreate(0, NULL)) ||
virHashAddEntry(hash, keya, value3) < 0 ||
virHashAddEntry(hash, keyc, value1) < 0 ||
virHashAddEntry(hash, keyb, value2) < 0) {
VIR_TEST_VERBOSE("\nfailed to create hash");
goto cleanup;
}
if (!(array = virHashGetItems(hash, NULL)) ||
array[3].key || array[3].value) {
VIR_TEST_VERBOSE("\nfailed to get items with NULL sort");
goto cleanup;
}
VIR_FREE(array);
if (!(array = virHashGetItems(hash, testHashGetItemsCompKey)) ||
STRNEQ(array[0].key, "a") ||
STRNEQ(array[0].value, "3") ||
STRNEQ(array[1].key, "b") ||
STRNEQ(array[1].value, "2") ||
STRNEQ(array[2].key, "c") ||
STRNEQ(array[2].value, "1") ||
array[3].key || array[3].value) {
VIR_TEST_VERBOSE("\nfailed to get items with key sort");
goto cleanup;
}
VIR_FREE(array);
if (!(array = virHashGetItems(hash, testHashGetItemsCompValue)) ||
STRNEQ(array[0].key, "c") ||
STRNEQ(array[0].value, "1") ||
STRNEQ(array[1].key, "b") ||
STRNEQ(array[1].value, "2") ||
STRNEQ(array[2].key, "a") ||
STRNEQ(array[2].value, "3") ||
array[3].key || array[3].value) {
VIR_TEST_VERBOSE("\nfailed to get items with value sort");
goto cleanup;
}
ret = 0;
cleanup:
VIR_FREE(array);
virHashFree(hash);
return ret;
}
static int
testHashEqualCompValue(const void *value1, const void *value2)
{
return c_strcasecmp(value1, value2);
}
static int
testHashEqual(const void *data ATTRIBUTE_UNUSED)
{
virHashTablePtr hash1, hash2 = NULL;
int ret = -1;
char keya[] = "a";
char keyb[] = "b";
char keyc[] = "c";
char value1_l[] = "m";
char value2_l[] = "n";
char value3_l[] = "o";
char value1_u[] = "M";
char value2_u[] = "N";
char value3_u[] = "O";
char value4_u[] = "P";
if (!(hash1 = virHashCreate(0, NULL)) ||
!(hash2 = virHashCreate(0, NULL)) ||
virHashAddEntry(hash1, keya, value1_l) < 0 ||
virHashAddEntry(hash1, keyb, value2_l) < 0 ||
virHashAddEntry(hash1, keyc, value3_l) < 0 ||
virHashAddEntry(hash2, keya, value1_u) < 0 ||
virHashAddEntry(hash2, keyb, value2_u) < 0) {
VIR_TEST_VERBOSE("\nfailed to create hashes");
goto cleanup;
}
if (virHashEqual(hash1, hash2, testHashEqualCompValue)) {
VIR_TEST_VERBOSE("\nfailed equal test for different number of elements");
goto cleanup;
}
if (virHashAddEntry(hash2, keyc, value4_u) < 0) {
VIR_TEST_VERBOSE("\nfailed to add element to hash2");
goto cleanup;
}
if (virHashEqual(hash1, hash2, testHashEqualCompValue)) {
VIR_TEST_VERBOSE("\nfailed equal test for same number of elements");
goto cleanup;
}
if (virHashUpdateEntry(hash2, keyc, value3_u) < 0) {
VIR_TEST_VERBOSE("\nfailed to update element in hash2");
goto cleanup;
}
if (!virHashEqual(hash1, hash2, testHashEqualCompValue)) {
VIR_TEST_VERBOSE("\nfailed equal test for equal hash tables");
goto cleanup;
}
ret = 0;
cleanup:
virHashFree(hash1);
virHashFree(hash2);
return ret;
}
static int
mymain(void)
{
int ret = 0;
#define DO_TEST_FULL(name, cmd, data, count) \
do { \
struct testInfo info = { data, count }; \
if (virtTestRun(name, testHash ## cmd, &info) < 0) \
ret = -1; \
} while (0)
#define DO_TEST_DATA(name, cmd, data) \
DO_TEST_FULL(name "(" #data ")", \
cmd, \
testHash ## cmd ## data, \
testHashCount ## cmd ## data)
#define DO_TEST_COUNT(name, cmd, count) \
DO_TEST_FULL(name "(" #count ")", cmd, NULL, count)
#define DO_TEST(name, cmd) \
DO_TEST_FULL(name, cmd, NULL, -1)
DO_TEST_COUNT("Grow", Grow, 1);
DO_TEST_COUNT("Grow", Grow, 10);
DO_TEST_COUNT("Grow", Grow, 42);
DO_TEST("Update", Update);
DO_TEST("Remove", Remove);
DO_TEST_DATA("Remove in ForEach", RemoveForEach, Some);
DO_TEST_DATA("Remove in ForEach", RemoveForEach, All);
DO_TEST_DATA("Remove in ForEach", RemoveForEach, Forbidden);
DO_TEST("Steal", Steal);
DO_TEST("Forbidden ops in ForEach", ForEach);
DO_TEST("RemoveSet", RemoveSet);
DO_TEST("Search", Search);
DO_TEST("GetItems", GetItems);
DO_TEST("Equal", Equal);
return (ret == 0) ? EXIT_SUCCESS : EXIT_FAILURE;
}
VIRT_TEST_MAIN(mymain)
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