join_test.cpp

//------------------------------------------------------------------------------
/*
This file is part of rippled: https://github.com/ripple/rippled
Copyright (c) 2022 Ripple Labs 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 <test/jtx/Account.h>
 
#include <xrpl/basics/join.h>
#include <xrpl/beast/unit_test.h>
 
namespace ripple {
namespace test {
 
struct join_test : beast::unit_test::suite
{
    void
    run() override
    {
        auto test = [this](auto collectionanddelimiter, std::string expected) {
            std::stringstream ss;
            // Put something else in the buffer before and after to ensure that
            // the << operator returns the stream correctly.
            ss << "(" << collectionanddelimiter << ")";
            auto const str = ss.str();
            BEAST_EXPECT(str.substr(1, str.length() - 2) == expected);
            BEAST_EXPECT(str.front() == '(');
            BEAST_EXPECT(str.back() == ')');
        };
 
        // C++ array
        test(
            CollectionAndDelimiter(std::array<int, 4>{2, -1, 5, 10}, "/"),
            "2/-1/5/10");
        // One item C++ array edge case
        test(
            CollectionAndDelimiter(std::array<std::string, 1>{"test"}, " & "),
            "test");
        // Empty C++ array edge case
        test(CollectionAndDelimiter(std::array<int, 0>{}, ","), "");
        {
            // C-style array
            char letters[4]{'w', 'a', 's', 'd'};
            test(CollectionAndDelimiter(letters, std::to_string(0)), "w0a0s0d");
        }
        {
            // Auto sized C-style array
            std::string words[]{"one", "two", "three", "four"};
            test(CollectionAndDelimiter(words, "\n"), "one\ntwo\nthree\nfour");
        }
        {
            // One item C-style array edge case
            std::string words[]{"thing"};
            test(CollectionAndDelimiter(words, "\n"), "thing");
        }
        // Initializer list
        test(
            CollectionAndDelimiter(std::initializer_list<size_t>{19, 25}, "+"),
            "19+25");
        // vector
        test(
            CollectionAndDelimiter(std::vector<int>{0, 42}, std::to_string(99)),
            "09942");
        {
            // vector with one item edge case
            using namespace jtx;
            test(
                CollectionAndDelimiter(
                    std::vector<Account>{Account::master}, "xxx"),
                Account::master.human());
        }
        // empty vector edge case
        test(CollectionAndDelimiter(std::vector<uint256>{}, ","), "");
        // C-style string
        test(CollectionAndDelimiter("string", " "), "s t r i n g");
        // Empty C-style string edge case
        test(CollectionAndDelimiter("", "*"), "");
        // Single char C-style string edge case
        test(CollectionAndDelimiter("x", "*"), "x");
        // std::string
        test(CollectionAndDelimiter(std::string{"string"}, "-"), "s-t-r-i-n-g");
        // Empty std::string edge case
        test(CollectionAndDelimiter(std::string{""}, "*"), "");
        // Single char std::string edge case
        test(CollectionAndDelimiter(std::string{"y"}, "*"), "y");
    }
};  // namespace test
 
BEAST_DEFINE_TESTSUITE(join, basics, ripple);
 
}  // namespace test
}  // namespace ripple