text: /*
   * Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved.
   * Copyright (c) 2017, Oracle and/or its affiliates.  All rights reserved.
   *
   * Licensed under the Apache License 2.0 (the "License").  You may not use
   * this file except in compliance with the License.  You can obtain a copy
   * in the file LICENSE in the source distribution or at
   * https://www.openssl.org/source/license.html
   */
  
  #include <stdio.h>
  #include <string.h>
  
  #include <openssl/opensslconf.h>
  #include <openssl/err.h>
  #include <openssl/crypto.h>
  #include <openssl/bn.h>
  
  #include "internal/nelem.h"
  #include "testutil.h"
  
  #define TEST(expected, test) test_case((expected), #test, (test))
  
  static int test_case(int expected, const char *test, int result)
  {
      if (result != expected) {
          fprintf(stderr, "# FATAL: %s != %d\n", test, expected);
          return 0;
      }
      return 1;
  }
  
  static int test_int(void)
  {
      if (!TEST(1, TEST_int_eq(1, 1))
          | !TEST(0, TEST_int_eq(1, -1))
          | !TEST(1, TEST_int_ne(1, 2))
          | !TEST(0, TEST_int_ne(3, 3))
          | !TEST(1, TEST_int_lt(4, 9))
          | !TEST(0, TEST_int_lt(9, 4))
          | !TEST(1, TEST_int_le(4, 9))
          | !TEST(1, TEST_int_le(5, 5))
          | !TEST(0, TEST_int_le(9, 4))
          | !TEST(1, TEST_int_gt(8, 5))
          | !TEST(0, TEST_int_gt(5, 8))
          | !TEST(1, TEST_int_ge(8, 5))
          | !TEST(1, TEST_int_ge(6, 6))
          | !TEST(0, TEST_int_ge(5, 8)))
          goto err;
      return 1;
  
  err:
      return 0;
  }
  
  static int test_uint(void)
  {
      if (!TEST(1, TEST_uint_eq(3u, 3u))
          | !TEST(0, TEST_uint_eq(3u, 5u))
          | !TEST(1, TEST_uint_ne(4u, 2u))
          | !TEST(0, TEST_uint_ne(6u, 6u))
          | !TEST(1, TEST_uint_lt(5u, 9u))
          | !TEST(0, TEST_uint_lt(9u, 5u))
          | !TEST(1, TEST_uint_le(5u, 9u))
          | !TEST(1, TEST_uint_le(7u, 7u))
          | !TEST(0, TEST_uint_le(9u, 5u))
          | !TEST(1, TEST_uint_gt(11u, 1u))
          | !TEST(0, TEST_uint_gt(1u, 11u))
          | !TEST(1, TEST_uint_ge(11u, 1u))
          | !TEST(1, TEST_uint_ge(6u, 6u))
          | !TEST(0, TEST_uint_ge(1u, 11u)))
          goto err;
      return 1;
  
  err:
      return 0;
  }
  
  static int test_char(void)
  {
      if (!TEST(1, TEST_char_eq('a', 'a'))
          | !TEST(0, TEST_char_eq('a', 'A'))
          | !TEST(1, TEST_char_ne('a', 'c'))
          | !TEST(0, TEST_char_ne('e', 'e'))
          | !TEST(1, TEST_char_lt('i', 'x'))
          | !TEST(0, TEST_char_lt('x', 'i'))
          | !TEST(1, TEST_char_le('i', 'x'))
          | !TEST(1, TEST_char_le('n', 'n'))
          | !TEST(0, TEST_char_le('x', 'i'))
          | !TEST(1, TEST_char_gt('w', 'n'))
          | !TEST(0, TEST_char_gt('n', 'w'))
          | !TEST(1, TEST_char_ge('w', 'n'))
          | !TEST(1, TEST_char_ge('p', 'p'))
          | !TEST(0, TEST_char_ge('n', 'w')))
          goto err;
      return 1;
  
  err:
      return 0;
  }
  
  static int test_uchar(void)
  {
      if (!TEST(1, TEST_uchar_eq(49, 49))
          | !TEST(0, TEST_uchar_eq(49, 60))
          | !TEST(1, TEST_uchar_ne(50, 2))
          | !TEST(0, TEST_uchar_ne(66, 66))
          | !TEST(1, TEST_uchar_lt(60, 80))
          | !TEST(0, TEST_uchar_lt(80, 60))
          | !TEST(1, TEST_uchar_le(60, 80))
          | !TEST(1, TEST_uchar_le(78, 78))
          | !TEST(0, TEST_uchar_le(80, 60))
          | !TEST(1, TEST_uchar_gt(88, 37))
          | !TEST(0, TEST_uchar_gt(37, 88))
          | !TEST(1, TEST_uchar_ge(88, 37))
          | !TEST(1, TEST_uchar_ge(66, 66))
          | !TEST(0, TEST_uchar_ge(37, 88)))
          goto err;
      return 1;
  
  err:
      return 0;
  }
  
  static int test_long(void)
  {
      if (!TEST(1, TEST_long_eq(123l, 123l))
          | !TEST(0, TEST_long_eq(123l, -123l))
          | !TEST(1, TEST_long_ne(123l, 500l))
          | !TEST(0, TEST_long_ne(1000l, 1000l))
          | !TEST(1, TEST_long_lt(-8923l, 102934563l))
          | !TEST(0, TEST_long_lt(102934563l, -8923l))
          | !TEST(1, TEST_long_le(-8923l, 102934563l))
          | !TEST(1, TEST_long_le(12345l, 12345l))
          | !TEST(0, TEST_long_le(102934563l, -8923l))
          | !TEST(1, TEST_long_gt(84325677l, 12345l))
          | !TEST(0, TEST_long_gt(12345l, 84325677l))
          | !TEST(1, TEST_long_ge(84325677l, 12345l))
          | !TEST(1, TEST_long_ge(465869l, 465869l))
          | !TEST(0, TEST_long_ge(12345l, 84325677l)))
          goto err;
      return 1;
  
  err:
      return 0;
  }
  
  static int test_ulong(void)
  {
      if (!TEST(1, TEST_ulong_eq(919ul, 919ul))
          | !TEST(0, TEST_ulong_eq(919ul, 10234ul))
          | !TEST(1, TEST_ulong_ne(8190ul, 66ul))
          | !TEST(0, TEST_ulong_ne(10555ul, 10555ul))
          | !TEST(1, TEST_ulong_lt(10234ul, 1000000ul))
          | !TEST(0, TEST_ulong_lt(1000000ul, 10234ul))
          | !TEST(1, TEST_ulong_le(10234ul, 1000000ul))
          | !TEST(1, TEST_ulong_le(100000ul, 100000ul))
          | !TEST(0, TEST_ulong_le(1000000ul, 10234ul))
          | !TEST(1, TEST_ulong_gt(100000000ul, 22ul))
          | !TEST(0, TEST_ulong_gt(22ul, 100000000ul))
          | !TEST(1, TEST_ulong_ge(100000000ul, 22ul))
          | !TEST(1, TEST_ulong_ge(10555ul, 10555ul))
          | !TEST(0, TEST_ulong_ge(22ul, 100000000ul)))
          goto err;
      return 1;
  
  err:
      return 0;
  }
  
  static int test_size_t(void)
  {
      if (!TEST(1, TEST_size_t_eq((size_t)10, (size_t)10))
          | !TEST(0, TEST_size_t_eq((size_t)10, (size_t)12))
          | !TEST(1, TEST_size_t_ne((size_t)10, (size_t)12))
          | !TEST(0, TEST_size_t_ne((size_t)24, (size_t)24))
          | !TEST(1, TEST_size_t_lt((size_t)30, (size_t)88))
          | !TEST(0, TEST_size_t_lt((size_t)88, (size_t)30))
          | !TEST(1, TEST_size_t_le((size_t)30, (size_t)88))
          | !TEST(1, TEST_size_t_le((size_t)33, (size_t)33))
          | !TEST(0, TEST_size_t_le((size_t)88, (size_t)30))
          | !TEST(1, TEST_size_t_gt((size_t)52, (size_t)33))
          | !TEST(0, TEST_size_t_gt((size_t)33, (size_t)52))
          | !TEST(1, TEST_size_t_ge((size_t)52, (size_t)33))
          | !TEST(1, TEST_size_t_ge((size_t)38, (size_t)38))
          | !TEST(0, TEST_size_t_ge((size_t)33, (size_t)52)))
          goto err;
      return 1;
  
  err:
      return 0;
  }
  
  static int test_time_t(void)
  {
      if (!TEST(1, TEST_time_t_eq((time_t)10, (time_t)10))
          | !TEST(0, TEST_time_t_eq((time_t)10, (time_t)12))
          | !TEST(1, TEST_time_t_ne((time_t)10, (time_t)12))
          | !TEST(0, TEST_time_t_ne((time_t)24, (time_t)24))
          | !TEST(1, TEST_time_t_lt((time_t)30, (time_t)88))
          | !TEST(0, TEST_time_t_lt((time_t)88, (time_t)30))
          | !TEST(1, TEST_time_t_le((time_t)30, (time_t)88))
          | !TEST(1, TEST_time_t_le((time_t)33, (time_t)33))
          | !TEST(0, TEST_time_t_le((time_t)88, (time_t)30))
          | !TEST(1, TEST_time_t_gt((time_t)52, (time_t)33))
          | !TEST(0, TEST_time_t_gt((time_t)33, (time_t)52))
          | !TEST(1, TEST_time_t_ge((time_t)52, (time_t)33))
          | !TEST(1, TEST_time_t_ge((time_t)38, (time_t)38))
          | !TEST(0, TEST_time_t_ge((time_t)33, (time_t)52)))
          goto err;
      return 1;
  
  err:
      return 0;
  }
  
  static int test_pointer(void)
  {
      int x = 0;
      char y = 1;
  
      if (!TEST(1, TEST_ptr(&y))
          | !TEST(0, TEST_ptr(NULL))
          | !TEST(0, TEST_ptr_null(&y))
          | !TEST(1, TEST_ptr_null(NULL))
          | !TEST(1, TEST_ptr_eq(NULL, NULL))
          | !TEST(0, TEST_ptr_eq(NULL, &y))
          | !TEST(0, TEST_ptr_eq(&y, NULL))
          | !TEST(0, TEST_ptr_eq(&y, &x))
          | !TEST(1, TEST_ptr_eq(&x, &x))
          | !TEST(0, TEST_ptr_ne(NULL, NULL))
          | !TEST(1, TEST_ptr_ne(NULL, &y))
          | !TEST(1, TEST_ptr_ne(&y, NULL))
          | !TEST(1, TEST_ptr_ne(&y, &x))
          | !TEST(0, TEST_ptr_ne(&x, &x)))
          goto err;
      return 1;
  
  err:
      return 0;
  }
  
  static int test_bool(void)
  {
      if (!TEST(0, TEST_true(0))
          | !TEST(1, TEST_true(1))
          | !TEST(1, TEST_false(0))
          | !TEST(0, TEST_false(1)))
          goto err;
      return 1;
  
  err:
      return 0;
  }
  
  static int test_string(void)
  {
      static char buf[] = "abc";
  
      if (!TEST(1, TEST_str_eq(NULL, NULL))
          | !TEST(1, TEST_str_eq("abc", buf))
          | !TEST(0, TEST_str_eq("abc", NULL))
          | !TEST(0, TEST_str_eq("abc", ""))
          | !TEST(0, TEST_str_eq(NULL, buf))
          | !TEST(0, TEST_str_ne(NULL, NULL))
          | !TEST(0, TEST_str_eq("", NULL))
          | !TEST(0, TEST_str_eq(NULL, ""))
          | !TEST(0, TEST_str_ne("", ""))
          | !TEST(0, TEST_str_eq("\1\2\3\4\5", "\1x\3\6\5"))
          | !TEST(0, TEST_str_ne("abc", buf))
          | !TEST(1, TEST_str_ne("abc", NULL))
          | !TEST(1, TEST_str_ne(NULL, buf))
          | !TEST(0, TEST_str_eq("abcdef", "abcdefghijk")))
          goto err;
      return 1;
  
  err:
      return 0;
  }
  
  static int test_memory(void)
  {
      static char buf[] = "xyz";
  
      if (!TEST(1, TEST_mem_eq(NULL, 0, NULL, 0))
          | !TEST(1, TEST_mem_eq(NULL, 1, NULL, 2))
          | !TEST(0, TEST_mem_eq(NULL, 0, "xyz", 3))
          | !TEST(0, TEST_mem_eq(NULL, 7, "abc", 3))
          | !TEST(0, TEST_mem_ne(NULL, 0, NULL, 0))
          | !TEST(0, TEST_mem_eq(NULL, 0, "", 0))
          | !TEST(0, TEST_mem_eq("", 0, NULL, 0))
          | !TEST(0, TEST_mem_ne("", 0, "", 0))
          | !TEST(0, TEST_mem_eq("xyz", 3, NULL, 0))
          | !TEST(0, TEST_mem_eq("xyz", 3, buf, sizeof(buf)))
          | !TEST(1, TEST_mem_eq("xyz", 4, buf, sizeof(buf))))
          goto err;
      return 1;
  
  err:
      return 0;
  }
  
  static int test_memory_overflow(void)
  {
      /* Verify that the memory printing overflows without walking the stack */
      const char *p = "1234567890123456789012345678901234567890123456789012";
      const char *q = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
  
      return TEST(0, TEST_mem_eq(p, strlen(p), q, strlen(q)));
  }
  
  static int test_bignum(void)
  {
      BIGNUM *a = NULL, *b = NULL, *c = NULL;
      int r = 0;
  
      if (!TEST(1, TEST_int_eq(BN_dec2bn(&a, "0"), 1))
          | !TEST(1, TEST_BN_eq_word(a, 0))
          | !TEST(0, TEST_BN_eq_word(a, 30))
          | !TEST(1, TEST_BN_abs_eq_word(a, 0))
          | !TEST(0, TEST_BN_eq_one(a))
          | !TEST(1, TEST_BN_eq_zero(a))
          | !TEST(0, TEST_BN_ne_zero(a))
          | !TEST(1, TEST_BN_le_zero(a))
          | !TEST(0, TEST_BN_lt_zero(a))
          | !TEST(1, TEST_BN_ge_zero(a))
          | !TEST(0, TEST_BN_gt_zero(a))
          | !TEST(1, TEST_BN_even(a))
          | !TEST(0, TEST_BN_odd(a))
          | !TEST(1, TEST_BN_eq(b, c))
          | !TEST(0, TEST_BN_eq(a, b))
          | !TEST(0, TEST_BN_ne(NULL, c))
          | !TEST(1, TEST_int_eq(BN_dec2bn(&b, "1"), 1))
          | !TEST(1, TEST_BN_eq_word(b, 1))
          | !TEST(1, TEST_BN_eq_one(b))
          | !TEST(0, TEST_BN_abs_eq_word(b, 0))
          | !TEST(1, TEST_BN_abs_eq_word(b, 1))
          | !TEST(0, TEST_BN_eq_zero(b))
          | !TEST(1, TEST_BN_ne_zero(b))
          | !TEST(0, TEST_BN_le_zero(b))
          | !TEST(0, TEST_BN_lt_zero(b))
          | !TEST(1, TEST_BN_ge_zero(b))
          | !TEST(1, TEST_BN_gt_zero(b))
          | !TEST(0, TEST_BN_even(b))
          | !TEST(1, TEST_BN_odd(b))
          | !TEST(1, TEST_int_eq(BN_dec2bn(&c, "-334739439"), 10))
          | !TEST(0, TEST_BN_eq_word(c, 334739439))
          | !TEST(1, TEST_BN_abs_eq_word(c, 334739439))
          | !TEST(0, TEST_BN_eq_zero(c))
          | !TEST(1, TEST_BN_ne_zero(c))
          | !TEST(1, TEST_BN_le_zero(c))
          | !TEST(1, TEST_BN_lt_zero(c))
          | !TEST(0, TEST_BN_ge_zero(c))
          | !TEST(0, TEST_BN_gt_zero(c))
          | !TEST(0, TEST_BN_even(c))
          | !TEST(1, TEST_BN_odd(c))
          | !TEST(1, TEST_BN_eq(a, a))
          | !TEST(0, TEST_BN_ne(a, a))
          | !TEST(0, TEST_BN_eq(a, b))
          | !TEST(1, TEST_BN_ne(a, b))
          | !TEST(0, TEST_BN_lt(a, c))
          | !TEST(1, TEST_BN_lt(c, b))
          | !TEST(0, TEST_BN_lt(b, c))
          | !TEST(0, TEST_BN_le(a, c))
          | !TEST(1, TEST_BN_le(c, b))
          | !TEST(0, TEST_BN_le(b, c))
          | !TEST(1, TEST_BN_gt(a, c))
          | !TEST(0, TEST_BN_gt(c, b))
          | !TEST(1, TEST_BN_gt(b, c))
          | !TEST(1, TEST_BN_ge(a, c))
          | !TEST(0, TEST_BN_ge(c, b))
          | !TEST(1, TEST_BN_ge(b, c)))
          goto err;
  
      r = 1;
  err:
      BN_free(a);
      BN_free(b);
      BN_free(c);
      return r;
  }
  
  static int test_long_output(void)
  {
      const char *p = "1234567890123456789012345678901234567890123456789012";
      const char *q = "1234567890klmnopqrs01234567890EFGHIJKLM0123456789XYZ";
      const char *r = "1234567890123456789012345678901234567890123456789012"
                      "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXY+"
                      "12345678901234567890123ABC78901234567890123456789012";
      const char *s = "1234567890123456789012345678901234567890123456789012"
                      "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXY-"
                      "1234567890123456789012345678901234567890123456789012"
                      "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
  
      return TEST(0, TEST_str_eq(p,  q))
             & TEST(0, TEST_str_eq(q, r))
             & TEST(0, TEST_str_eq(r, s))
             & TEST(0, TEST_mem_eq(r, strlen(r), s, strlen(s)));
  }
  
  static int test_long_bignum(void)
  {
      int r;
      BIGNUM *a = NULL, *b = NULL, *c = NULL, *d = NULL;
      const char as[] = "1234567890123456789012345678901234567890123456789012"
                        "1234567890123456789012345678901234567890123456789012"
                        "1234567890123456789012345678901234567890123456789012"
                        "1234567890123456789012345678901234567890123456789012"
                        "1234567890123456789012345678901234567890123456789012"
                        "1234567890123456789012345678901234567890123456789012"
                        "FFFFFF";
      const char bs[] = "1234567890123456789012345678901234567890123456789012"
                        "1234567890123456789012345678901234567890123456789013"
                        "987657";
      const char cs[] = "-"        /* 64 characters plus sign */
                        "123456789012345678901234567890"
                        "123456789012345678901234567890"
                        "ABCD";
      const char ds[] = "-"        /* 63 characters plus sign */
                        "23456789A123456789B123456789C"
                        "123456789D123456789E123456789F"
                        "ABCD";
  
      r = TEST_true(BN_hex2bn(&a, as))
          && TEST_true(BN_hex2bn(&b, bs))
          && TEST_true(BN_hex2bn(&c, cs))
          && TEST_true(BN_hex2bn(&d, ds))
          && (TEST(0, TEST_BN_eq(a, b))
              & TEST(0, TEST_BN_eq(b, a))
              & TEST(0, TEST_BN_eq(b, NULL))
              & TEST(0, TEST_BN_eq(NULL, a))
              & TEST(1, TEST_BN_ne(a, NULL))
              & TEST(0, TEST_BN_eq(c, d)));
      BN_free(a);
      BN_free(b);
      BN_free(c);
      BN_free(d);
      return r;
  }
  
  static int test_messages(void)
  {
      TEST_info("This is an %s message.", "info");
      TEST_error("This is an %s message.", "error");
      return 1;
  }
  
  static int test_single_eval(void)
  {
      int i = 4;
      long l = -9000;
      char c = 'd';
      unsigned char uc = 22;
      unsigned long ul = 500;
      size_t st = 1234;
      char buf[4] = { 0 }, *p = buf;
  
             /* int */
      return TEST_int_eq(i++, 4)
             && TEST_int_eq(i, 5)
             && TEST_int_gt(++i, 5)
             && TEST_int_le(5, i++)
             && TEST_int_ne(--i, 5)
             && TEST_int_eq(12, i *= 2)
             /* Long */
             && TEST_long_eq(l--, -9000L)
             && TEST_long_eq(++l, -9000L)
             && TEST_long_ne(-9000L, l /= 2)
             && TEST_long_lt(--l, -4500L)
             /* char */
             && TEST_char_eq(++c, 'e')
             && TEST_char_eq('e', c--)
             && TEST_char_ne('d', --c)
             && TEST_char_le('b', --c)
             && TEST_char_lt(c++, 'c')
             /* unsigned char */
             && TEST_uchar_eq(22, uc++)
             && TEST_uchar_eq(uc /= 2, 11)
             && TEST_ulong_eq(ul ^= 1, 501)
             && TEST_ulong_eq(502, ul ^= 3)
             && TEST_ulong_eq(ul = ul * 3 - 6, 1500)
             /* size_t */
             && TEST_size_t_eq((--i, st++), 1234)
             && TEST_size_t_eq(st, 1235)
             && TEST_int_eq(11, i)
             /* pointers */
             && TEST_ptr_eq(p++, buf)
             && TEST_ptr_eq(buf + 2, ++p)
             && TEST_ptr_eq(buf, p -= 2)
             && TEST_ptr(++p)
             && TEST_ptr_eq(p, buf + 1)
             && TEST_ptr_null(p = NULL)
             /* strings */
             && TEST_str_eq(p = &("123456"[1]), "23456")
             && TEST_str_eq("3456", ++p)
             && TEST_str_ne(p++, "456")
             /* memory */
             && TEST_mem_eq(--p, sizeof("3456"), "3456", sizeof("3456"))
             && TEST_mem_ne(p++, sizeof("456"), "456", sizeof("456"))
             && TEST_mem_eq(p--, sizeof("456"), "456", sizeof("456"));
  }
  
  static int test_output(void)
  {
      const char s[] = "1234567890123456789012345678901234567890123456789012"
                       "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
  
      test_output_string("test", s, sizeof(s) - 1);
      test_output_memory("test", (const unsigned char *)s, sizeof(s));
      return 1;
  }
  
  static const char *bn_output_tests[] = {
      NULL,
      "0",
      "-12345678",
      "1234567890123456789012345678901234567890123456789012"
      "1234567890123456789012345678901234567890123456789013"
      "987657"
  };
  
  static int test_bn_output(int n)
  {
      BIGNUM *b = NULL;
  
      if (bn_output_tests[n] != NULL
              && !TEST_true(BN_hex2bn(&b, bn_output_tests[n])))
          return 0;
      test_output_bignum(bn_output_tests[n], b);
      BN_free(b);
      return 1;
  }
  
  static int test_skip_one(void)
  {
      return TEST_skip("skip test");
  }
  
  static int test_skip_many(int n)
  {
      return TEST_skip("skip tests: %d", n);
  }
  
  static int test_skip_null(void)
  {
      /*
       * This is not a recommended way of skipping a test, a reason or
       * description should be included.
       */
      return TEST_skip(NULL);
  }
  
  int setup_tests(void)
  {
      ADD_TEST(test_int);
      ADD_TEST(test_uint);
      ADD_TEST(test_char);
      ADD_TEST(test_uchar);
      ADD_TEST(test_long);
      ADD_TEST(test_ulong);
      ADD_TEST(test_size_t);
      ADD_TEST(test_time_t);
      ADD_TEST(test_pointer);
      ADD_TEST(test_bool);
      ADD_TEST(test_string);
      ADD_TEST(test_memory);
      ADD_TEST(test_memory_overflow);
      ADD_TEST(test_bignum);
      ADD_TEST(test_long_bignum);
      ADD_TEST(test_long_output);
      ADD_TEST(test_messages);
      ADD_TEST(test_single_eval);
      ADD_TEST(test_output);
      ADD_ALL_TESTS(test_bn_output, OSSL_NELEM(bn_output_tests));
      ADD_TEST(test_skip_one);
      ADD_TEST(test_skip_null);
      ADD_ALL_TESTS(test_skip_many, 3);
      return 1;
  }
  