51 lines
1.7 KiB
C++
51 lines
1.7 KiB
C++
/*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Copyright 2015 Danny Robson <danny@nerdcruft.net>
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*/
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#include "memory/buffer/circular.hpp"
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#include "tap.hpp"
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#include <algorithm>
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///////////////////////////////////////////////////////////////////////////////
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int
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main (void)
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{
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util::TAP::logger tap;
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// provoke usage of the smallest size buffer we can get away with so we
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// might detect caching issues or similar.
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constexpr size_t CAPACITY = 1;
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util::memory::buffer::circular buffer (CAPACITY);
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// zero fill to ensure our value setting tests don't accidentall succeed
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std::fill_n (buffer.begin (), buffer.size () * 2, 0);
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// sanity check we haven't accidentally mapped an empty region
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tap.expect_neq (buffer.begin (), buffer.end (), "non-zero sized region");
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// check a near overrun is replicated
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buffer.end ()[0] = 1;
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tap.expect_eq (buffer.begin ()[0], buffer.end ()[0], "near overrun is replicated");
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// check a far overrun is replicated
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buffer.end ()[buffer.size () - 1] = 2;
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tap.expect_eq (buffer.begin ()[buffer.size () - 1],
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buffer.end ()[buffer.size () - 1],
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"far overrun is replicated");
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return tap.status ();
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}
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