//
// Copyright 2010-2011 Ettus Research LLC
// Copyright 2018 Ettus Research, a National Instruments Company
//
// SPDX-License-Identifier: GPL-3.0-or-later
//

#include <uhd/transport/bounded_buffer.hpp>
#include <boost/test/unit_test.hpp>

using namespace uhd::transport;

static const double timeout = 0.01 /*secs*/;

BOOST_AUTO_TEST_CASE(test_bounded_buffer_with_timed_wait)
{
    bounded_buffer<int> bb(3);

    // push elements, check for timeout
    BOOST_CHECK(bb.push_with_timed_wait(0, timeout));
    BOOST_CHECK(bb.push_with_timed_wait(1, timeout));
    BOOST_CHECK(bb.push_with_timed_wait(2, timeout));
    BOOST_CHECK(not bb.push_with_timed_wait(3, timeout));

    int val;
    // pop elements, check for timeout and check values
    BOOST_CHECK(bb.pop_with_timed_wait(val, timeout));
    BOOST_CHECK_EQUAL(val, 0);
    BOOST_CHECK(bb.pop_with_timed_wait(val, timeout));
    BOOST_CHECK_EQUAL(val, 1);
    BOOST_CHECK(bb.pop_with_timed_wait(val, timeout));
    BOOST_CHECK_EQUAL(val, 2);
    BOOST_CHECK(not bb.pop_with_timed_wait(val, timeout));
}

BOOST_AUTO_TEST_CASE(test_bounded_buffer_with_pop_on_full)
{
    bounded_buffer<int> bb(3);

    // push elements, check for timeout
    BOOST_CHECK(bb.push_with_pop_on_full(0));
    BOOST_CHECK(bb.push_with_pop_on_full(1));
    BOOST_CHECK(bb.push_with_pop_on_full(2));
    BOOST_CHECK(not bb.push_with_pop_on_full(3));

    int val;
    // pop elements, check for timeout and check values
    BOOST_CHECK(bb.pop_with_timed_wait(val, timeout));
    BOOST_CHECK_EQUAL(val, 1);
    BOOST_CHECK(bb.pop_with_timed_wait(val, timeout));
    BOOST_CHECK_EQUAL(val, 2);
    BOOST_CHECK(bb.pop_with_timed_wait(val, timeout));
    BOOST_CHECK_EQUAL(val, 3);
}

BOOST_AUTO_TEST_CASE(test_bounded_buffer_pop_all)
{
    bounded_buffer<int> bb(3);

    // push elements, check for timeout
    BOOST_CHECK(bb.push_with_pop_on_full(23));
    BOOST_CHECK(bb.push_with_pop_on_full(42));

    std::vector<int> vals = bb.pop_all();
    BOOST_CHECK_EQUAL(vals.size(), 2);
    BOOST_CHECK_EQUAL(vals[0], 23);
    BOOST_CHECK_EQUAL(vals[1], 42);
}
