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79 lines
1.9 KiB
C
79 lines
1.9 KiB
C
/* -*- mode: C; c-basic-offset: 4 -*- */
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#ident "$Id$"
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#ident "Copyright (c) 2007-2011 Tokutek Inc. All rights reserved."
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#ident "The technology is licensed by the Massachusetts Institute of Technology, Rutgers State University of New Jersey, and the Research Foundation of State University of New York at Stony Brook under United States of America Serial No. 11/760379 and to the patents and/or patent applications resulting from it."
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#include "test.h"
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#include <stdlib.h>
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#include "sort.h"
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const int MAX_NUM = 0x0fffffffL;
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int MAGIC_EXTRA = 0xd3adb00f;
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static int
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int_cmp(void *ve, const void *va, const void *vb)
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{
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int *e = ve;
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assert(e);
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assert(*e == MAGIC_EXTRA);
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const int *a = va, *b = vb;
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assert(*a < MAX_NUM);
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assert(*b < MAX_NUM);
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return (*a > *b) - (*a < *b);
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}
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static void
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check_int_array(int a[], int nelts)
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{
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assert(a[0] < MAX_NUM);
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for (int i = 1; i < nelts; ++i) {
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assert(a[i] < MAX_NUM);
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assert(a[i-1] <= a[i]);
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}
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}
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static void
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zero_array_test(void)
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{
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mergesort_r(NULL, 0, sizeof(int), NULL, int_cmp);
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}
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static void
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already_sorted_test(int nelts)
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{
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int *MALLOC_N(nelts, a);
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for (int i = 0; i < nelts; ++i) {
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a[i] = i;
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}
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mergesort_r(a, nelts, sizeof a[0], &MAGIC_EXTRA, int_cmp);
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check_int_array(a, nelts);
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toku_free(a);
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}
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static void
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random_array_test(int nelts)
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{
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int *MALLOC_N(nelts, a);
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for (int i = 0; i < nelts; ++i) {
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a[i] = rand() % MAX_NUM;
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}
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mergesort_r(a, nelts, sizeof a[0], &MAGIC_EXTRA, int_cmp);
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check_int_array(a, nelts);
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toku_free(a);
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}
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int
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test_main(int argc __attribute__((__unused__)), const char *argv[] __attribute__((__unused__)))
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{
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zero_array_test();
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already_sorted_test(10);
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already_sorted_test(1000);
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already_sorted_test(10001);
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already_sorted_test(10000000);
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random_array_test(10);
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random_array_test(1000);
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random_array_test(10001);
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random_array_test(10000000);
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return 0;
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}
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