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/*
Copyright 2020 Google LLC
Use of this source code is governed by a BSD-style
license that can be found in the LICENSE file or at
https://developers.google.com/open-source/licenses/bsd
*/
#include "system.h"
#include "basics.h"
#include "constants.h"
#include "pq.h"
#include "record.h"
#include "reftable-tests.h"
#include "test_framework.h"
void merged_iter_pqueue_check(struct merged_iter_pqueue pq)
{
int i;
for (i = 1; i < pq.len; i++) {
int parent = (i - 1) / 2;
EXPECT(pq_less(&pq.heap[parent], &pq.heap[i]));
}
}
static void test_pq(void)
{
char *names[54] = { NULL };
int N = ARRAY_SIZE(names) - 1;
struct merged_iter_pqueue pq = { NULL };
const char *last = NULL;
int i = 0;
for (i = 0; i < N; i++) {
char name[100];
snprintf(name, sizeof(name), "%02d", i);
names[i] = xstrdup(name);
}
i = 1;
do {
struct reftable_record rec =
reftable_new_record(BLOCK_TYPE_REF);
struct pq_entry e = { 0 };
reftable_record_as_ref(&rec)->refname = names[i];
e.rec = rec;
merged_iter_pqueue_add(&pq, e);
merged_iter_pqueue_check(pq);
i = (i * 7) % N;
} while (i != 1);
while (!merged_iter_pqueue_is_empty(pq)) {
struct pq_entry e = merged_iter_pqueue_remove(&pq);
struct reftable_ref_record *ref =
reftable_record_as_ref(&e.rec);
merged_iter_pqueue_check(pq);
if (last) {
EXPECT(strcmp(last, ref->refname) < 0);
}
last = ref->refname;
ref->refname = NULL;
reftable_free(ref);
}
for (i = 0; i < N; i++) {
reftable_free(names[i]);
}
merged_iter_pqueue_release(&pq);
}
int pq_test_main(int argc, const char *argv[])
{
RUN_TEST(test_pq);
return 0;
}
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