/*
    This file is part of Magnum.

    Copyright © 2010, 2011, 2012, 2013 Vladimír Vondruš <mosra@centrum.cz>

    Permission is hereby granted, free of charge, to any person obtaining a
    copy of this software and associated documentation files (the "Software"),
    to deal in the Software without restriction, including without limitation
    the rights to use, copy, modify, merge, publish, distribute, sublicense,
    and/or sell copies of the Software, and to permit persons to whom the
    Software is furnished to do so, subject to the following conditions:

    The above copyright notice and this permission notice shall be included
    in all copies or substantial portions of the Software.

    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
    THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
    DEALINGS IN THE SOFTWARE.
*/

#include <sstream>
#include <TestSuite/Tester.h>

#include "Math/BoolVector.h"

namespace Magnum { namespace Math { namespace Test {

class BoolVectorTest: public Corrade::TestSuite::Tester {
    public:
        explicit BoolVectorTest();

        void constructDefault();
        void constructOneValue();
        void constructOneElement();
        void data();

        void constExpressions();

        void compare();
        void compareUndefined();
        void all();
        void none();
        void any();

        void bitInverse();
        void bitAndOrXor();

        void debug();
};

static_assert(BoolVector<15>::DataSize == 2, "Improper DataSize");
static_assert(BoolVector<16>::DataSize == 2, "Improper DataSize");
static_assert(BoolVector<17>::DataSize == 3, "Improper DataSize");

typedef Math::BoolVector<19> BoolVector19;

BoolVectorTest::BoolVectorTest() {
    addTests({&BoolVectorTest::constructDefault,
              &BoolVectorTest::constructOneValue,
              &BoolVectorTest::constructOneElement,
              &BoolVectorTest::data,

              &BoolVectorTest::constExpressions,

              &BoolVectorTest::compare,
              &BoolVectorTest::compareUndefined,
              &BoolVectorTest::all,
              &BoolVectorTest::none,
              &BoolVectorTest::any,

              &BoolVectorTest::bitInverse,
              &BoolVectorTest::bitAndOrXor,

              &BoolVectorTest::debug});
}

void BoolVectorTest::constructDefault() {
    CORRADE_COMPARE(BoolVector19(), BoolVector19(0x00, 0x00, 0x00));
}

void BoolVectorTest::constructOneValue() {
    CORRADE_COMPARE(BoolVector19(false), BoolVector19(0x00, 0x00, 0x00));
    CORRADE_COMPARE(BoolVector19(true), BoolVector19(0xff, 0xff, 0x07));
}

void BoolVectorTest::constructOneElement() {
    typedef BoolVector<1> BoolVector1;

    BoolVector1 a = 0x01;
    CORRADE_COMPARE(a, BoolVector1(0x01));
}

void BoolVectorTest::data() {
    BoolVector19 a(0x08, 0x03, 0x04);

    CORRADE_VERIFY(!a[0] && !a[1] && !a[2]);
    CORRADE_VERIFY(a[3]);
    CORRADE_VERIFY(!a[4] && !a[5] && !a[6] && !a[7]);
    CORRADE_VERIFY(a[8]);
    CORRADE_VERIFY(a[9]);
    CORRADE_VERIFY(!a[10] && !a[11] && !a[12] && !a[13] && !a[14] && !a[15] && !a[16] && !a[17]);
    CORRADE_VERIFY(a[18]);

    a.set(15, true);
    CORRADE_VERIFY(a[15]);

    CORRADE_COMPARE(a, BoolVector19(0x08, 0x83, 0x04));
}

void BoolVectorTest::constExpressions() {
    /* Default constructor */
    constexpr BoolVector19 a;
    CORRADE_COMPARE(a, BoolVector19(0x00, 0x00, 0x00));

    /* Value constructor */
    constexpr BoolVector19 b(0xa5, 0x5f, 0x07);
    CORRADE_COMPARE(b, BoolVector19(0xa5, 0x5f, 0x07));

    /* One-value constructor, not constexpr under GCC < 4.7 */
    #ifndef CORRADE_GCC46_COMPATIBILITY
    constexpr BoolVector19 c(true);
    CORRADE_COMPARE(c, BoolVector19(0xff, 0xff, 0x07));
    #endif

    /* Copy constructor */
    constexpr BoolVector19 d(b);
    CORRADE_COMPARE(d, BoolVector19(0xa5, 0x5f, 0x07));

    /* Data access, pointer chasings, i.e. *(b.data()[3]), are not possible */
    constexpr bool e = b[2];
    constexpr UnsignedByte f = *b.data();
    CORRADE_COMPARE(e, true);
    CORRADE_COMPARE(f, 0xa5);
}

void BoolVectorTest::compare() {
    BoolVector19 a(0xa5, 0x5f, 0x07);
    CORRADE_VERIFY(a == a);

    /* Change in full segments */
    BoolVector19 b(0xa3, 0x5f, 0x07);
    BoolVector19 c(0xa5, 0x98, 0x07);
    CORRADE_VERIFY(a != b);
    CORRADE_VERIFY(a != c);

    /* Change in last bit */
    BoolVector19 d(0xa5, 0x5f, 0x06);
    CORRADE_VERIFY(a != d);
}

void BoolVectorTest::compareUndefined() {
    BoolVector19 a(0xa5, 0x5f, 0x07);

    /* Change in unused part of last segment */
    BoolVector19 b(0xa5, 0x5f, 0x0f);
    CORRADE_VERIFY(a == b);

    /* Change in used part of last segment */
    BoolVector19 c(0xa5, 0x5f, 0x03);
    CORRADE_VERIFY(a != c);
}

void BoolVectorTest::all() {
    CORRADE_VERIFY(BoolVector19(0xff, 0xff, 0x07).all());

    /* Last segment - bit in used and unused part */
    CORRADE_VERIFY(BoolVector19(0xff, 0xff, 0x0f).all());
    CORRADE_VERIFY(!BoolVector19(0xff, 0xff, 0x04).all());
}

void BoolVectorTest::none() {
    CORRADE_VERIFY(BoolVector19(0x00, 0x00, 0x00).none());

    /* Last segment - bit in used and unused part */
    CORRADE_VERIFY(BoolVector19(0x00, 0x00, 0x08).none());
    CORRADE_VERIFY(!BoolVector19(0x00, 0x00, 0x04).none());
}

void BoolVectorTest::any() {
    CORRADE_VERIFY(BoolVector19(0x00, 0x01, 0x00).any());

    /* Last segment - bit in used and unused part */
    CORRADE_VERIFY(BoolVector19(0x00, 0x00, 0x04).any());
    CORRADE_VERIFY(!BoolVector19(0x00, 0x00, 0x08).any());
}

void BoolVectorTest::bitInverse() {
    CORRADE_COMPARE(~BoolVector19(0xa5, 0x5f, 0x03), BoolVector19(0x5a, 0xa0, 0x04));
}

void BoolVectorTest::bitAndOrXor() {
    BoolVector19 a(0xa5, 0x5f, 0x03);
    BoolVector19 b(0x37, 0xf3, 0x06);

    CORRADE_COMPARE(a & b, BoolVector19(0x25, 0x53, 0x02));
    CORRADE_COMPARE(a | b, BoolVector19(0xb7, 0xff, 0x07));
    CORRADE_COMPARE(a ^ b, BoolVector19(0x92, 0xac, 0x05));
}

void BoolVectorTest::debug() {
    std::ostringstream o;

    Debug(&o) << BoolVector19(0x25, 0x53, 0x02);

    CORRADE_COMPARE(o.str(), "BoolVector(10100100 11001010 010)\n");
}

}}}

CORRADE_TEST_MAIN(Magnum::Math::Test::BoolVectorTest)