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///////////////////////////////////////////////////////////////////////////////
//
/// \file test_memlimit.c
/// \brief Tests the memory usage limitter
///
/// \note These tests cannot be done at exact byte count accuracy,
/// because memory limitter takes into account the memory wasted
/// by bookkeeping structures and alignment (padding).
//
// Copyright (C) 2008 Lasse Collin
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
///////////////////////////////////////////////////////////////////////////////
#include "tests.h"
int
main(void)
{
void *a;
void *b;
lzma_memlimit *mem;
expect((mem = lzma_memlimit_create(1 << 16)) != NULL);
expect(lzma_memlimit_count(mem) == 0);
expect(lzma_memlimit_used(mem) > 0);
expect(lzma_memlimit_used(mem) < 4096);
expect(lzma_memlimit_used(mem) == lzma_memlimit_max(mem, false));
expect(!lzma_memlimit_reached(mem, false));
expect((a = lzma_memlimit_alloc(mem, 1, 4096)) != NULL);
expect(lzma_memlimit_count(mem) == 1);
expect(lzma_memlimit_used(mem) > 4096);
expect(lzma_memlimit_used(mem) < 8192);
expect(lzma_memlimit_used(mem) == lzma_memlimit_max(mem, false));
expect(!lzma_memlimit_reached(mem, false));
expect((b = lzma_memlimit_alloc(mem, 1, 4096)) != NULL);
expect(lzma_memlimit_count(mem) == 2);
expect(lzma_memlimit_used(mem) > 8192);
expect(lzma_memlimit_used(mem) < 12288);
expect(lzma_memlimit_used(mem) == lzma_memlimit_max(mem, false));
expect(!lzma_memlimit_reached(mem, false));
expect((lzma_memlimit_alloc(mem, 1, 1 << 17)) == NULL);
expect(lzma_memlimit_count(mem) == 2);
expect(lzma_memlimit_used(mem) > 8192);
expect(lzma_memlimit_used(mem) < 12288);
expect(lzma_memlimit_used(mem) < lzma_memlimit_max(mem, false));
expect(lzma_memlimit_max(mem, false) > (1 << 17));
expect(lzma_memlimit_reached(mem, false));
lzma_memlimit_free(mem, a);
expect(lzma_memlimit_count(mem) == 1);
expect(lzma_memlimit_used(mem) > 4096);
expect(lzma_memlimit_used(mem) < 8192);
expect(lzma_memlimit_max(mem, true) > (1 << 17));
expect(lzma_memlimit_reached(mem, true));
expect(lzma_memlimit_used(mem) == lzma_memlimit_max(mem, false));
expect(!lzma_memlimit_reached(mem, false));
expect(lzma_memlimit_get(mem) == 1 << 16);
lzma_memlimit_set(mem, 6144);
expect(lzma_memlimit_get(mem) == 6144);
expect(lzma_memlimit_alloc(mem, 1, 4096) == NULL);
expect(lzma_memlimit_max(mem, false) > 8192);
expect(lzma_memlimit_reached(mem, false));
lzma_memlimit_free(mem, b);
expect(lzma_memlimit_count(mem) == 0);
expect(lzma_memlimit_used(mem) > 0);
expect(lzma_memlimit_used(mem) < 4096);
expect((a = lzma_memlimit_alloc(mem, 1, 4096)) != NULL);
expect(lzma_memlimit_count(mem) == 1);
expect(lzma_memlimit_used(mem) > 4096);
expect(lzma_memlimit_used(mem) < 8192);
expect(lzma_memlimit_max(mem, false) > 8192);
expect(lzma_memlimit_reached(mem, false));
expect(lzma_memlimit_max(mem, true) > 8192);
expect(lzma_memlimit_reached(mem, true));
expect(lzma_memlimit_max(mem, true) < 8192);
expect(!lzma_memlimit_reached(mem, true));
lzma_memlimit_detach(mem, a);
free(a);
expect(lzma_memlimit_count(mem) == 0);
lzma_memlimit_set(mem, SIZE_MAX);
expect(lzma_memlimit_alloc(mem, 1, SIZE_MAX - 33) == NULL);
expect(lzma_memlimit_count(mem) == 0);
expect(lzma_memlimit_max(mem, true) == SIZE_MAX);
expect(lzma_memlimit_reached(mem, true));
expect(lzma_memlimit_alloc(mem, 1, SIZE_MAX) == NULL);
expect(lzma_memlimit_count(mem) == 0);
expect(lzma_memlimit_max(mem, false) == SIZE_MAX);
expect(lzma_memlimit_reached(mem, false));
lzma_memlimit_end(mem, true);
return 0;
}
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