text: /*
  
  Copyright (c) 2012, Arvid Norberg
  All rights reserved.
  
  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions
  are met:
  
      * Redistributions of source code must retain the above copyright
        notice, this list of conditions and the following disclaimer.
      * Redistributions in binary form must reproduce the above copyright
        notice, this list of conditions and the following disclaimer in
        the documentation and/or other materials provided with the distribution.
      * Neither the name of the author nor the names of its
        contributors may be used to endorse or promote products derived
        from this software without specific prior written permission.
  
  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  POSSIBILITY OF SUCH DAMAGE.
  
  */
  
  #include "test.hpp"
  #include "libtorrent/aux_/escape_string.hpp"
  #include "libtorrent/hex.hpp"
  #include "libtorrent/string_util.hpp"
  #include <iostream>
  #include <string.h> // for strcmp
  
  using namespace libtorrent;
  
  TORRENT_TEST(string)
  {
  	// test maybe_url_encode
  	TEST_EQUAL(maybe_url_encode("http://test:test@abc.com/abc<>abc"), "http://test:test@abc.com/abc%3c%3eabc");
  	TEST_EQUAL(maybe_url_encode("http://abc.com/foo bar"), "http://abc.com/foo%20bar");
  	TEST_EQUAL(maybe_url_encode("http://abc.com:80/foo bar"), "http://abc.com:80/foo%20bar");
  	TEST_EQUAL(maybe_url_encode("http://abc.com:8080/foo bar"), "http://abc.com:8080/foo%20bar");
  	TEST_EQUAL(maybe_url_encode("abc"), "abc");
  	TEST_EQUAL(maybe_url_encode("http://abc.com/abc"), "http://abc.com/abc");
  
  	// test to/from hex conversion
  
  	char const* str = "0123456789012345678901234567890123456789";
  	char bin[20];
  	TEST_CHECK(from_hex(str, 40, bin));
  	char hex[41];
  	to_hex(bin, 20, hex);
  	TEST_CHECK(strcmp(hex, str) == 0);
  
  	TEST_CHECK(to_hex("\x55\x73") == "5573");
  	TEST_CHECK(to_hex("\xaB\xd0") == "abd0");
  
  	// test is_space
  
  	TEST_CHECK(!is_space('C'));
  	TEST_CHECK(!is_space('\b'));
  	TEST_CHECK(!is_space('8'));
  	TEST_CHECK(!is_space('='));
  	TEST_CHECK(is_space(' '));
  	TEST_CHECK(is_space('\t'));
  	TEST_CHECK(is_space('\n'));
  	TEST_CHECK(is_space('\r'));
  
  	// test to_lower
  
  	TEST_CHECK(to_lower('C') == 'c');
  	TEST_CHECK(to_lower('c') == 'c');
  	TEST_CHECK(to_lower('-') == '-');
  	TEST_CHECK(to_lower('&') == '&');
  
  	// test string_equal_no_case
  
  	TEST_CHECK(string_equal_no_case("foobar", "FoobAR"));
  	TEST_CHECK(string_equal_no_case("foobar", "foobar"));
  	TEST_CHECK(!string_equal_no_case("foobar", "foobar "));
  	TEST_CHECK(!string_equal_no_case("foobar", "F00"));
  
  	// test string_begins_no_case
  
  	TEST_CHECK(string_begins_no_case("foobar", "FoobAR --"));
  	TEST_CHECK(!string_begins_no_case("foobar", "F00"));
  
  	// test itoa
  
  	TEST_CHECK(to_string(345).data() == std::string("345"));
  	TEST_CHECK(to_string(-345).data() == std::string("-345"));
  	TEST_CHECK(to_string(0).data() == std::string("0"));
  	TEST_CHECK(to_string(1000000000).data() == std::string("1000000000"));
  
  	// base64 test vectors from http://www.faqs.org/rfcs/rfc4648.html
  
  	TEST_CHECK(base64encode("") == "");
  	TEST_CHECK(base64encode("f") == "Zg==");
  	TEST_CHECK(base64encode("fo") == "Zm8=");
  	TEST_CHECK(base64encode("foo") == "Zm9v");
  	TEST_CHECK(base64encode("foob") == "Zm9vYg==");
  	TEST_CHECK(base64encode("fooba") == "Zm9vYmE=");
  	TEST_CHECK(base64encode("foobar") == "Zm9vYmFy");
  
  	// base32 test vectors from http://www.faqs.org/rfcs/rfc4648.html
  
     TEST_CHECK(base32encode("") == "");
     TEST_CHECK(base32encode("f") == "MY======");
     TEST_CHECK(base32encode("fo") == "MZXQ====");
     TEST_CHECK(base32encode("foo") == "MZXW6===");
     TEST_CHECK(base32encode("foob") == "MZXW6YQ=");
     TEST_CHECK(base32encode("fooba") == "MZXW6YTB");
     TEST_CHECK(base32encode("foobar") == "MZXW6YTBOI======");
  
  	// base32 for i2p
  	TEST_CHECK(base32encode("fo", string::no_padding) == "MZXQ");
  	TEST_CHECK(base32encode("foob", string::i2p) == "mzxw6yq");
  	TEST_CHECK(base32encode("foobar", string::lowercase) == "mzxw6ytboi======");
  
     TEST_CHECK(base32decode("") == "");
     TEST_CHECK(base32decode("MY======") == "f");
     TEST_CHECK(base32decode("MZXQ====") == "fo");
     TEST_CHECK(base32decode("MZXW6===") == "foo");
     TEST_CHECK(base32decode("MZXW6YQ=") == "foob");
     TEST_CHECK(base32decode("MZXW6YTB") == "fooba");
     TEST_CHECK(base32decode("MZXW6YTBOI======") == "foobar");
  
     TEST_CHECK(base32decode("MY") == "f");
     TEST_CHECK(base32decode("MZXW6YQ") == "foob");
     TEST_CHECK(base32decode("MZXW6YTBOI") == "foobar");
     TEST_CHECK(base32decode("mZXw6yTBO1======") == "foobar");
  
  	// make sure invalid encoding returns the empty string
     TEST_CHECK(base32decode("mZXw6yTBO1{#&*()=") == "");
  
  	std::string test;
  	for (int i = 0; i < 255; ++i)
  		test += char(i);
  
  	TEST_CHECK(base32decode(base32encode(test)) == test);
  
  	// escape_string
  	char const* test_string = "!@#$%^&*()-_=+/,. %?";
  	TEST_EQUAL(escape_string(test_string, int(strlen(test_string)))
  		, "!%40%23%24%25%5e%26*()-_%3d%2b%2f%2c.%20%25%3f");
  
  	// escape_path
  	TEST_EQUAL(escape_path(test_string, int(strlen(test_string)))
  		, "!%40%23%24%25%5e%26*()-_%3d%2b/%2c.%20%25%3f");
  
  	error_code ec;
  	TEST_CHECK(unescape_string(escape_path(test_string, int(strlen(test_string))), ec) == test_string);
  	TEST_CHECK(!ec);
  	if (ec) std::fprintf(stderr, "%s\n", ec.message().c_str());
  
  	// need_encoding
  	char const* test_string2 = "!@$&()-_/,.%?";
  	TEST_CHECK(need_encoding(test_string, int(strlen(test_string))) == true);
  	TEST_CHECK(need_encoding(test_string2, int(strlen(test_string2))) == false);
  	TEST_CHECK(need_encoding("\n", 1) == true);
  
  	// maybe_url_encode
  	TEST_EQUAL(maybe_url_encode("http://bla.com/\n"), "http://bla.com/%0a");
  	TEST_EQUAL(maybe_url_encode("http://bla.com/foo%20bar"), "http://bla.com/foo%20bar");
  	TEST_EQUAL(maybe_url_encode("http://bla.com/foo%20bar?k=v&k2=v2"), "http://bla.com/foo%20bar?k=v&k2=v2");
  	TEST_EQUAL(maybe_url_encode("?&"), "?&");
  
  	// unescape_string
  	TEST_CHECK(unescape_string(escape_string(test_string, int(strlen(test_string))), ec)
  		== test_string);
  	std::cerr << unescape_string(escape_string(test_string, int(strlen(test_string))), ec) << std::endl;
  	// prematurely terminated string
  	unescape_string("%", ec);
  	TEST_CHECK(ec == error_code(errors::invalid_escaped_string));
  	unescape_string("%0", ec);
  	TEST_CHECK(ec == error_code(errors::invalid_escaped_string));
  
  	// invalid hex character
  	unescape_string("%GE", ec);
  	TEST_CHECK(ec == error_code(errors::invalid_escaped_string));
  	unescape_string("%eg", ec);
  	TEST_CHECK(ec == error_code(errors::invalid_escaped_string));
  	ec.clear();
  
  	TEST_CHECK(unescape_string("123+abc", ec) == "123 abc");
  
  
  	// read_until
  
  	char const* test_string1 = "abcdesdf sdgf";
  	char const* tmp1 = test_string1;
  	TEST_CHECK(read_until(tmp1, 'd', test_string1 + strlen(test_string1)) == "abc");
  
  	tmp1 = test_string1;
  	TEST_CHECK(read_until(tmp1, '[', test_string1 + strlen(test_string1)) == "abcdesdf sdgf");
  
  	char hex_chars[] = "0123456789abcdefABCDEF";
  
  	for (int i = 1; i < 255; ++i)
  	{
  		bool hex = strchr(hex_chars, i) != NULL;
  		char c = i;
  		TEST_EQUAL(detail::is_hex(&c, 1), hex);
  	}
  
  	TEST_EQUAL(detail::hex_to_int('0'), 0);
  	TEST_EQUAL(detail::hex_to_int('7'), 7);
  	TEST_EQUAL(detail::hex_to_int('a'), 10);
  	TEST_EQUAL(detail::hex_to_int('f'), 15);
  	TEST_EQUAL(detail::hex_to_int('b'), 11);
  	TEST_EQUAL(detail::hex_to_int('t'), -1);
  	TEST_EQUAL(detail::hex_to_int('g'), -1);
  
  	std::string path = "a\\b\\c";
  	convert_path_to_posix(path);
  	TEST_EQUAL(path, "a/b/c");
  
  	// url_has_argument
  
  	TEST_CHECK(url_has_argument("http://127.0.0.1/test", "test") == "");
  	TEST_CHECK(url_has_argument("http://127.0.0.1/test?foo=24", "bar") == "");
  	TEST_CHECK(url_has_argument("http://127.0.0.1/test?foo=24", "foo") == "24");
  	TEST_CHECK(url_has_argument("http://127.0.0.1/test?foo=24&bar=23", "foo") == "24");
  	TEST_CHECK(url_has_argument("http://127.0.0.1/test?foo=24&bar=23", "bar") == "23");
  	TEST_CHECK(url_has_argument("http://127.0.0.1/test?foo=24&bar=23&a=e", "bar") == "23");
  	TEST_CHECK(url_has_argument("http://127.0.0.1/test?foo=24&bar=23&a=e", "a") == "e");
  	TEST_CHECK(url_has_argument("http://127.0.0.1/test?foo=24&bar=23&a=e", "b") == "");
  
  	// resolve_file_url
  
  #ifdef TORRENT_WINDOWS
  	std::string p = "c:/blah/foo/bar\\";
  	convert_path_to_windows(p);
  	TEST_EQUAL(p, "c:\\blah\\foo\\bar\\");
  	TEST_EQUAL(resolve_file_url("file:///c:/blah/foo/bar"), "c:\\blah\\foo\\bar");
  	TEST_EQUAL(resolve_file_url("file:///c:/b%3fah/foo/bar"), "c:\\b?ah\\foo\\bar");
  	TEST_EQUAL(resolve_file_url("file://\\c:\\b%3fah\\foo\\bar"), "c:\\b?ah\\foo\\bar");
  #else
  	TEST_EQUAL(resolve_file_url("file:///c/blah/foo/bar"), "/c/blah/foo/bar");
  	TEST_EQUAL(resolve_file_url("file:///c/b%3fah/foo/bar"), "/c/b?ah/foo/bar");
  #endif
  
  	std::vector<std::string> list;
  	parse_comma_separated_string("  a,b, c, d ,e \t,foobar\n\r,[::1]", list);
  	TEST_EQUAL(list.size(), 7);
  	TEST_EQUAL(list[0], "a");
  	TEST_EQUAL(list[1], "b");
  	TEST_EQUAL(list[2], "c");
  	TEST_EQUAL(list[3], "d");
  	TEST_EQUAL(list[4], "e");
  	TEST_EQUAL(list[5], "foobar");
  	TEST_EQUAL(list[6], "[::1]");
  
  	std::vector<listen_interface_t> list2;
  	parse_listen_interfaces("  a:4,b:35, c : 1000s, d: 351 ,e \t:42,foobar:1337s\n\r,[2001::1]:6881", list2);
  	TEST_EQUAL(list2.size(), 7);
  	TEST_EQUAL(list2[0].device, "a");
  	TEST_EQUAL(list2[1].device, "b");
  	TEST_EQUAL(list2[2].device, "c");
  	TEST_EQUAL(list2[3].device, "d");
  	TEST_EQUAL(list2[4].device, "e");
  	TEST_EQUAL(list2[5].device, "foobar");
  	TEST_EQUAL(list2[6].device, "2001::1");
  
  	TEST_EQUAL(list2[0].port, 4);
  	TEST_EQUAL(list2[1].port, 35);
  	TEST_EQUAL(list2[2].port, 1000);
  	TEST_EQUAL(list2[3].port, 351);
  	TEST_EQUAL(list2[4].port, 42);
  	TEST_EQUAL(list2[5].port, 1337);
  	TEST_EQUAL(list2[6].port, 6881);
  
  	TEST_EQUAL(list2[0].ssl, false);
  	TEST_EQUAL(list2[1].ssl, false);
  	TEST_EQUAL(list2[2].ssl, true);
  	TEST_EQUAL(list2[3].ssl, false);
  	TEST_EQUAL(list2[4].ssl, false);
  	TEST_EQUAL(list2[5].ssl, true);
  	TEST_EQUAL(list2[6].ssl, false);
  
  	TEST_EQUAL(print_listen_interfaces(list2), "a:4,b:35,c:1000s,d:351,e:42,foobar:1337s,[2001::1]:6881");
  
  	// test string_tokenize
  
  	char test_tokenize[] = "a b c \"foo bar\" d\ne f";
  	char* next = test_tokenize;
  	char* ptr = string_tokenize(next, ' ', &next);
  	TEST_EQUAL(ptr, std::string("a"));
  
  	ptr = string_tokenize(next, ' ', &next);
  	TEST_EQUAL(ptr, std::string("b"));
  
  	ptr = string_tokenize(next, ' ', &next);
  	TEST_EQUAL(ptr, std::string("c"));
  
  	ptr = string_tokenize(next, ' ', &next);
  	TEST_EQUAL(ptr, std::string("\"foo bar\""));
  
  	ptr = string_tokenize(next, ' ', &next);
  	TEST_EQUAL(ptr, std::string("d\ne"));
  
  	ptr = string_tokenize(next, ' ', &next);
  	TEST_EQUAL(ptr, std::string("f"));
  
  	ptr = string_tokenize(next, ' ', &next);
  	TEST_EQUAL(ptr, static_cast<char*>(0));
  
  	TEST_EQUAL(std::string("foobar"), convert_from_native(convert_to_native("foobar")));
  	TEST_EQUAL(std::string("foobar")
  		, convert_from_native(convert_to_native("foo"))
  		+ convert_from_native(convert_to_native("bar")));
  
  	TEST_EQUAL(convert_to_native("foobar")
  		, convert_to_native("foo") + convert_to_native("bar"));
  }
  
  