Drop urandom_test.

It didn't do too much and I didn't notice that CRYPTO_sysrand wasn't
OPENSSL_EXPORTed, which makes the test impossible on shared-library
builds.

Change-Id: I38986572aa34fa9c0f30075d562b8ee4e1a0c8b8

crypto/rand/CMakeLists.txt

@@ -22,12 +22,3 @@ add_library(
 )
 
 perlasm(rdrand-x86_64.${ASM_EXT} asm/rdrand-x86_64.pl)
-
-add_executable(
-  urandom_test
-
-  urandom_test.cc
-  $<TARGET_OBJECTS:test_support>
-)
-
-target_link_libraries(urandom_test crypto)

crypto/rand/urandom_test.cc

@@ -1,52 +0,0 @@
-/* Copyright (c) 2015, Google Inc.
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
- * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
- * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
- * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
-
-#include <stdio.h>
-#include <string.h>
-
-#include <openssl/rand.h>
-#include <openssl/crypto.h>
-
-
-extern "C" {
-extern void CRYPTO_sysrand(uint8_t *out, size_t requested);
-}
-
-static bool TestBuffering() {
-  RAND_enable_fork_unsafe_buffering(-1);
-  uint8_t buf[4096];
-
-  memset(buf, 0, sizeof(buf));
-  static const size_t kBufSize = 4096;
-  CRYPTO_sysrand(buf, 0);
-  CRYPTO_sysrand(buf, 2048);                      /* fills the buffer */
-  CRYPTO_sysrand(buf, kBufSize - 1);              /* triggers a second fill */
-  CRYPTO_sysrand(buf, kBufSize - 2048 + 1);       /* consumes the remainder */
-  CRYPTO_sysrand(buf, 4096);                      /* bypasses the buffer */
-
-  /* Lame, but might as well sanity check that something happened. */
-  uint8_t cmp[4096];
-  memset(cmp, 0, sizeof(cmp));
-  return memcmp(buf, cmp, 4096) != 0;
-}
-
-int main() {
-  CRYPTO_library_init();
-  if (!TestBuffering()) {
-    return false;
-  }
-
-  printf("PASS\n");
-  return 0;
-}

util/all_tests.json

@@ -47,7 +47,6 @@
 	["crypto/pkcs8/pkcs8_test"],
 	["crypto/pkcs8/pkcs12_test"],
 	["crypto/poly1305/poly1305_test", "crypto/poly1305/poly1305_test.txt"],
-	["crypto/rand/urandom_test"],
 	["crypto/refcount_test"],
 	["crypto/rsa/rsa_test"],
 	["crypto/thread_test"],