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