jdk

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/*
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 * Copyright (c) 2018, 2021, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#include "precompiled.hpp"
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#include "memory/resourceArea.hpp"
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#include "utilities/stringUtils.hpp"
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#include "unittest.hpp"
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TEST(StringUtils, similarity) {
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  const char* str1 = "the quick brown fox jumps over the lazy dog";
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  const char* str2 = "the quick brown fox jumps over the lazy doh";
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  EXPECT_NEAR(0.95349, StringUtils::similarity(str1, strlen(str1), str2, strlen(str2)), 1e-5);
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}
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static size_t count_char(const char* s, size_t len, char ch) {
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  size_t cnt = 0;
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  for (size_t i = 0; i < len; ++i) {
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    if (s[i] == ch) {
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      cnt++;
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    }
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  }
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  return cnt;
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}
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static size_t count_char(const stringStream& ss, char ch) {
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  return count_char(ss.base(), ss.size(), ch);
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}
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static const char* const lorem = "Lorem ipsum dolor sit amet, consectetur adipiscing elit,\n"            \
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                                 "sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.\n"  \
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                                 "Lacinia at quis risus sed vulputate odio ut enim blandit.\n"           \
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                                 "Amet risus nullam eget felis eget.\n"                                  \
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                                 "Viverra orci sagittis eu volutpat odio facilisis mauris sit.\n"        \
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                                 "Erat velit scelerisque in dictum non.\n";
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TEST_VM(StringUtils, replace_no_expand) {
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  ResourceMark rm;
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  stringStream ss;
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  ss.print_raw(lorem);
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  size_t newlines = count_char(ss, '\n');
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  char* s2 = ss.as_string(false);
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  int deleted = StringUtils::replace_no_expand(s2, "\n", "");
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  ASSERT_EQ(newlines, (size_t)deleted);
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  newlines = count_char(s2, strlen(s2), '\n');
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  ASSERT_EQ(newlines, (size_t)0);
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  deleted = StringUtils::replace_no_expand(s2, "\n", "");
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  ASSERT_EQ(deleted, 0);
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}
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