/*!
 * \file queue.cpp
 * \brief
 *      Unit tests for queue
 *
 * \copyright Copyright (C) 2020 Christos Choutouridis <christos@choutouridis.net>
 *
 * <dl class=\"section copyright\"><dt>License</dt><dd>
 * The MIT License (MIT)
 *
 * 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.
 * </dd></dl>
 *
 */
#include <cont/queue.h>
#include <gtest/gtest.h>

namespace Tqueue {
    using namespace tbx;


    // Test construction
    TEST(Tqueue, contruct) {
        queue<int, 8> q1;
        queue<int, 8> q2{1, 2, 3, 4, 5, 6, 7, 8};
        queue<int, 8> q3{1, 2, 3, 4, 5};

        EXPECT_EQ (8UL, q1.capacity());
        EXPECT_EQ (0UL, q1.size());
        EXPECT_EQ (8UL, q2.capacity());
        EXPECT_EQ (8UL, q2.size());
        EXPECT_EQ (8UL, q3.capacity());
        EXPECT_EQ (5UL, q3.size());
    }

    // base class functionality check
    TEST(Tqueue, base_class) {

        queue<int, 8> q1;

        // Access of base class functionality
        EXPECT_EQ (8UL, q1.capacity());
        EXPECT_EQ (0UL, q1.size());
        EXPECT_EQ (true, q1.empty());
        EXPECT_EQ (false, q1.full());

        q1.push(42);
        EXPECT_EQ (42, q1.front());
        EXPECT_EQ (42, q1.back());
        EXPECT_EQ (42, q1.pop());

        q1.push(1);
        q1.push(2);
        q1.push(3);

        int check_it=1;
        for (auto it = q1.begin() ; it != q1.end() ; ++it)
            EXPECT_EQ(*it, check_it++);
        EXPECT_EQ(4, check_it);         // run through all
    }

    // stream push-pop
    TEST(Tqueue, stream_push_pop) {
        queue<int, 8> q1;

        q1 << 1 << 2 << 3 << 4 << 5 << 6 << 7 << 8;
        EXPECT_EQ (8UL, q1.capacity());
        EXPECT_EQ (8UL, q1.size());
        EXPECT_EQ (false, q1.empty());
        EXPECT_EQ (true, q1.full());

        q1 << 9;                        // try to insert in full queue
        EXPECT_EQ (8UL, q1.capacity());
        EXPECT_EQ (8UL, q1.size());
        EXPECT_EQ (false, q1.empty());
        EXPECT_EQ (true, q1.full());

        int check_it=1;
        for (auto it = q1.begin() ; it != q1.end() ; ++it)
            EXPECT_EQ(*it, check_it++);
        EXPECT_EQ(9, check_it);         // run through all

        for (int i =1 ; i <= 8 ; ++i) {
            check_it << q1;
            EXPECT_EQ(i, check_it);
        }
        EXPECT_EQ (8UL, q1.capacity());
        EXPECT_EQ (0UL, q1.size());
        EXPECT_EQ (true, q1.empty());
        EXPECT_EQ (false, q1.full());

        q1 >> check_it;
        EXPECT_EQ (int{}, check_it);
    }



    // Test construction
     TEST(Tqueue, contruct_atomic) {
         queue<int, 8, true> q1;
         queue<int, 8, true> q2{1, 2, 3, 4, 5, 6, 7, 8};
         queue<int, 8, true> q3{1, 2, 3, 4, 5};

         EXPECT_EQ (8UL, q1.capacity());
         EXPECT_EQ (0UL, q1.size());
         EXPECT_EQ (8UL, q2.capacity());
         EXPECT_EQ (8UL, q2.size());
         EXPECT_EQ (8UL, q3.capacity());
         EXPECT_EQ (5UL, q3.size());
     }

     // base class functionality check
     TEST(Tqueue, base_class_atomic) {

         queue<int, 8, true> q1;

         // Access of base class functionality
         EXPECT_EQ (8UL, q1.capacity());
         EXPECT_EQ (0UL, q1.size());
         EXPECT_EQ (true, q1.empty());
         EXPECT_EQ (false, q1.full());

         q1.push(42);
         EXPECT_EQ (42, q1.front());
         EXPECT_EQ (42, q1.back());
         EXPECT_EQ (42, q1.pop());

         q1.push(1);
         q1.push(2);
         q1.push(3);

         int check_it=1;
         for (auto it = q1.begin() ; it != q1.end() ; ++it)
             EXPECT_EQ(*it, check_it++);
         EXPECT_EQ(4, check_it);         // run through all
     }

     // stream push-pop
     TEST(Tqueue, stream_push_pop_atomic) {
         queue<int, 8, true> q1;

         q1 << 1 << 2 << 3 << 4 << 5 << 6 << 7 << 8;
         EXPECT_EQ (8UL, q1.capacity());
         EXPECT_EQ (8UL, q1.size());
         EXPECT_EQ (false, q1.empty());
         EXPECT_EQ (true, q1.full());

         q1 << 9;                        // try to insert in full queue
         EXPECT_EQ (8UL, q1.capacity());
         EXPECT_EQ (8UL, q1.size());
         EXPECT_EQ (false, q1.empty());
         EXPECT_EQ (true, q1.full());

         int check_it=1;
         for (auto it = q1.begin() ; it != q1.end() ; ++it)
             EXPECT_EQ(*it, check_it++);
         EXPECT_EQ(9, check_it);         // run through all

         for (int i =1 ; i <= 8 ; ++i) {
             check_it << q1;
             EXPECT_EQ(i, check_it);
         }
         EXPECT_EQ (8UL, q1.capacity());
         EXPECT_EQ (0UL, q1.size());
         EXPECT_EQ (true, q1.empty());
         EXPECT_EQ (false, q1.full());

         q1 >> check_it;
         EXPECT_EQ (int{}, check_it);
     }

}