//------------------------------------------------------------------------------
/*
This file is part of rippled: https://github.com/ripple/rippled
Copyright (c) 2012, 2013 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 <ripple/beast/unit_test.h>
#include <ripple/beast/core/SemanticVersion.h>
namespace beast {

class SemanticVersion_test : public unit_test::suite
{
    using identifier_list = SemanticVersion::identifier_list;

public:
    void checkPass(std::string const& input, bool shouldPass = true)
    {
        SemanticVersion v;

        if (shouldPass)
        {
            BEAST_EXPECT(v.parse(input));
            BEAST_EXPECT(v.print() == input);
        }
        else
        {
            BEAST_EXPECT(!v.parse(input));
        }
    }

    void checkFail(std::string const& input)
    {
        checkPass(input, false);
    }

    // check input and input with appended metadata
    void checkMeta(std::string const& input, bool shouldPass)
    {
        checkPass(input, shouldPass);

        checkPass(input + "+a", shouldPass);
        checkPass(input + "+1", shouldPass);
        checkPass(input + "+a.b", shouldPass);
        checkPass(input + "+ab.cd", shouldPass);

        checkFail(input + "!");
        checkFail(input + "+");
        checkFail(input + "++");
        checkFail(input + "+!");
        checkFail(input + "+.");
        checkFail(input + "+a.!");
    }

    void checkMetaFail(std::string const& input)
    {
        checkMeta(input, false);
    }

    // check input, input with appended release data,
    // input with appended metadata, and input with both
    // appended release data and appended metadata
    //
    void checkRelease(std::string const& input, bool shouldPass = true)
    {
        checkMeta(input, shouldPass);

        checkMeta(input + "-1", shouldPass);
        checkMeta(input + "-a", shouldPass);
        checkMeta(input + "-a1", shouldPass);
        checkMeta(input + "-a1.b1", shouldPass);
        checkMeta(input + "-ab.cd", shouldPass);
        checkMeta(input + "--", shouldPass);

        checkMetaFail(input + "+");
        checkMetaFail(input + "!");
        checkMetaFail(input + "-");
        checkMetaFail(input + "-!");
        checkMetaFail(input + "-.");
        checkMetaFail(input + "-a.!");
        checkMetaFail(input + "-0.a");
    }

    // Checks the major.minor.version string alone and with all
    // possible combinations of release identifiers and metadata.
    //
    void check(std::string const& input, bool shouldPass = true)
    {
        checkRelease(input, shouldPass);
    }

    void negcheck(std::string const& input)
    {
        check(input, false);
    }

    void testParse()
    {
        testcase("parsing");

        check("0.0.0");
        check("1.2.3");
        check("2147483647.2147483647.2147483647"); // max int

                                                   // negative values
        negcheck("-1.2.3");
        negcheck("1.-2.3");
        negcheck("1.2.-3");

        // missing parts
        negcheck("");
        negcheck("1");
        negcheck("1.");
        negcheck("1.2");
        negcheck("1.2.");
        negcheck(".2.3");

        // whitespace
        negcheck(" 1.2.3");
        negcheck("1 .2.3");
        negcheck("1.2 .3");
        negcheck("1.2.3 ");

        // leading zeroes
        negcheck("01.2.3");
        negcheck("1.02.3");
        negcheck("1.2.03");
    }

    static identifier_list ids()
    {
        return identifier_list();
    }

    static identifier_list ids(
        std::string const& s1)
    {
        identifier_list v;
        v.push_back(s1);
        return v;
    }

    static identifier_list ids(
        std::string const& s1, std::string const& s2)
    {
        identifier_list v;
        v.push_back(s1);
        v.push_back(s2);
        return v;
    }

    static identifier_list ids(
        std::string const& s1, std::string const& s2, std::string const& s3)
    {
        identifier_list v;
        v.push_back(s1);
        v.push_back(s2);
        v.push_back(s3);
        return v;
    }

    // Checks the decomposition of the input into appropriate values
    void checkValues(std::string const& input,
        int majorVersion,
        int minorVersion,
        int patchVersion,
        identifier_list const& preReleaseIdentifiers = identifier_list(),
        identifier_list const& metaData = identifier_list())
    {
        SemanticVersion v;

        BEAST_EXPECT(v.parse(input));

        BEAST_EXPECT(v.majorVersion == majorVersion);
        BEAST_EXPECT(v.minorVersion == minorVersion);
        BEAST_EXPECT(v.patchVersion == patchVersion);

        BEAST_EXPECT(v.preReleaseIdentifiers == preReleaseIdentifiers);
        BEAST_EXPECT(v.metaData == metaData);
    }

    void testValues()
    {
        testcase("values");

        checkValues("0.1.2", 0, 1, 2);
        checkValues("1.2.3", 1, 2, 3);
        checkValues("1.2.3-rc1", 1, 2, 3, ids("rc1"));
        checkValues("1.2.3-rc1.debug", 1, 2, 3, ids("rc1", "debug"));
        checkValues("1.2.3-rc1.debug.asm", 1, 2, 3, ids("rc1", "debug", "asm"));
        checkValues("1.2.3+full", 1, 2, 3, ids(), ids("full"));
        checkValues("1.2.3+full.prod", 1, 2, 3, ids(), ids("full", "prod"));
        checkValues("1.2.3+full.prod.x86", 1, 2, 3, ids(), ids("full", "prod", "x86"));
        checkValues("1.2.3-rc1.debug.asm+full.prod.x86", 1, 2, 3,
            ids("rc1", "debug", "asm"), ids("full", "prod", "x86"));
    }

    // makes sure the left version is less than the right
    void checkLessInternal(std::string const& lhs, std::string const& rhs)
    {
        SemanticVersion left;
        SemanticVersion right;

        BEAST_EXPECT(left.parse(lhs));
        BEAST_EXPECT(right.parse(rhs));

        BEAST_EXPECT(compare(left, left) == 0);
        BEAST_EXPECT(compare(right, right) == 0);
        BEAST_EXPECT(compare(left, right) < 0);
        BEAST_EXPECT(compare(right, left) > 0);

        BEAST_EXPECT(left < right);
        BEAST_EXPECT(right > left);
        BEAST_EXPECT(left == left);
        BEAST_EXPECT(right == right);
    }

    void checkLess(std::string const& lhs, std::string const& rhs)
    {
        checkLessInternal(lhs, rhs);
        checkLessInternal(lhs + "+meta", rhs);
        checkLessInternal(lhs, rhs + "+meta");
        checkLessInternal(lhs + "+meta", rhs + "+meta");
    }

    void testCompare()
    {
        testcase("comparisons");

        checkLess("1.0.0-alpha", "1.0.0-alpha.1");
        checkLess("1.0.0-alpha.1", "1.0.0-alpha.beta");
        checkLess("1.0.0-alpha.beta", "1.0.0-beta");
        checkLess("1.0.0-beta", "1.0.0-beta.2");
        checkLess("1.0.0-beta.2", "1.0.0-beta.11");
        checkLess("1.0.0-beta.11", "1.0.0-rc.1");
        checkLess("1.0.0-rc.1", "1.0.0");
        checkLess("0.9.9", "1.0.0");
    }

    void run()
    {
        testParse();
        testValues();
        testCompare();
    }
};

BEAST_DEFINE_TESTSUITE(SemanticVersion, beast_core, beast);
}