Move hash into ccan/ dir

[ccan] / hash / test / run.c

diff --git a/hash/test/run.c b/hash/test/run.c
deleted file mode 100644 (file)
index 89ab0a9..0000000
--- a/hash/test/run.c
+++ /dev/null
@@ -1,115 +0,0 @@
-#include "hash/hash.h"
-#include "tap/tap.h"
-#include "hash/hash.c"
-#include <stdbool.h>
-#include <string.h>
-
-#define ARRAY_WORDS 5
-
-int main(int argc, char *argv[])
-{
-       unsigned int i, j, k;
-       uint32_t array[ARRAY_WORDS], val;
-       char array2[sizeof(array) + sizeof(uint32_t)];
-       uint32_t results[256];
-
-       /* Initialize array. */
-       for (i = 0; i < ARRAY_WORDS; i++)
-               array[i] = i;
-
-       plan_tests(53);
-
-       /* hash_stable is guaranteed. */
-       ok1(hash_stable(array, ARRAY_WORDS, 0) == 0x13305f8c);
-       ok1(hash_stable(array, ARRAY_WORDS, 1) == 0x171abf74);
-       ok1(hash_stable(array, ARRAY_WORDS, 2) == 0x7646fcc7);
-       ok1(hash_stable(array, ARRAY_WORDS, 4) == 0xa758ed5);
-       ok1(hash_stable(array, ARRAY_WORDS, 8) == 0x2dedc2e4);
-       ok1(hash_stable(array, ARRAY_WORDS, 16) == 0x28e2076b);
-       ok1(hash_stable(array, ARRAY_WORDS, 32) == 0xb73091c5);
-       ok1(hash_stable(array, ARRAY_WORDS, 64) == 0x87daf5db);
-       ok1(hash_stable(array, ARRAY_WORDS, 128) == 0xa16dfe20);
-       ok1(hash_stable(array, ARRAY_WORDS, 256) == 0x300c63c3);
-       ok1(hash_stable(array, ARRAY_WORDS, 512) == 0x255c91fc);
-       ok1(hash_stable(array, ARRAY_WORDS, 1024) == 0x6357b26);
-       ok1(hash_stable(array, ARRAY_WORDS, 2048) == 0x4bc5f339);
-       ok1(hash_stable(array, ARRAY_WORDS, 4096) == 0x1301617c);
-       ok1(hash_stable(array, ARRAY_WORDS, 8192) == 0x506792c9);
-       ok1(hash_stable(array, ARRAY_WORDS, 16384) == 0xcd596705);
-       ok1(hash_stable(array, ARRAY_WORDS, 32768) == 0xa8713cac);
-       ok1(hash_stable(array, ARRAY_WORDS, 65536) == 0x94d9794);
-       ok1(hash_stable(array, ARRAY_WORDS, 131072) == 0xac753e8);
-       ok1(hash_stable(array, ARRAY_WORDS, 262144) == 0xcd8bdd20);
-       ok1(hash_stable(array, ARRAY_WORDS, 524288) == 0xd44faf80);
-       ok1(hash_stable(array, ARRAY_WORDS, 1048576) == 0x2547ccbe);
-       ok1(hash_stable(array, ARRAY_WORDS, 2097152) == 0xbab06dbc);
-       ok1(hash_stable(array, ARRAY_WORDS, 4194304) == 0xaac0e882);
-       ok1(hash_stable(array, ARRAY_WORDS, 8388608) == 0x443f48d0);
-       ok1(hash_stable(array, ARRAY_WORDS, 16777216) == 0xdff49fcc);
-       ok1(hash_stable(array, ARRAY_WORDS, 33554432) == 0x9ce0fd65);
-       ok1(hash_stable(array, ARRAY_WORDS, 67108864) == 0x9ddb1def);
-       ok1(hash_stable(array, ARRAY_WORDS, 134217728) == 0x86096f25);
-       ok1(hash_stable(array, ARRAY_WORDS, 268435456) == 0xe713b7b5);
-       ok1(hash_stable(array, ARRAY_WORDS, 536870912) == 0x5baeffc5);
-       ok1(hash_stable(array, ARRAY_WORDS, 1073741824) == 0xde874f52);
-       ok1(hash_stable(array, ARRAY_WORDS, 2147483648U) == 0xeca13b4e);
-
-       /* Hash should be the same, indep of memory alignment. */
-       val = hash(array, sizeof(array), 0);
-       for (i = 0; i < sizeof(uint32_t); i++) {
-               memcpy(array2 + i, array, sizeof(array));
-               ok(hash(array2 + i, sizeof(array), 0) != val,
-                  "hash matched at offset %i", i);
-       }
-
-       /* Hash of random values should have random distribution:
-        * check one byte at a time. */
-       for (i = 0; i < sizeof(uint32_t); i++) {
-               unsigned int lowest = -1U, highest = 0;
-
-               memset(results, 0, sizeof(results));
-
-               for (j = 0; j < 256000; j++) {
-                       for (k = 0; k < ARRAY_WORDS; k++)
-                               array[k] = random();
-                       results[(hash(array, sizeof(array), 0) >> i*8)&0xFF]++;
-               }
-
-               for (j = 0; j < 256; j++) {
-                       if (results[j] < lowest)
-                               lowest = results[j];
-                       if (results[j] > highest)
-                               highest = results[j];
-               }
-               /* Expect within 20% */
-               ok(lowest > 800, "Byte %i lowest %i", i, lowest);
-               ok(highest < 1200, "Byte %i highest %i", i, highest);
-               diag("Byte %i, range %u-%u", i, lowest, highest);
-       }
-
-       /* Hash of pointer values should also have random distribution. */
-       for (i = 0; i < sizeof(uint32_t); i++) {
-               unsigned int lowest = -1U, highest = 0;
-               char *p = malloc(256000);
-
-               memset(results, 0, sizeof(results));
-
-               for (j = 0; j < 256000; j++)
-                       results[(hash_pointer(p + j, 0) >> i*8)&0xFF]++;
-               free(p);
-
-               for (j = 0; j < 256; j++) {
-                       if (results[j] < lowest)
-                               lowest = results[j];
-                       if (results[j] > highest)
-                               highest = results[j];
-               }
-               /* Expect within 20% */
-               ok(lowest > 800, "hash_pointer byte %i lowest %i", i, lowest);
-               ok(highest < 1200, "hash_pointer byte %i highest %i",
-                  i, highest);
-               diag("hash_pointer byte %i, range %u-%u", i, lowest, highest);
-       }
-
-       return exit_status();
-}