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Diffstat (limited to 'tests/test_memlimit.c')
| -rw-r--r-- | tests/test_memlimit.c | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/tests/test_memlimit.c b/tests/test_memlimit.c new file mode 100644 index 00000000..8b156401 --- /dev/null +++ b/tests/test_memlimit.c @@ -0,0 +1,114 @@ +/////////////////////////////////////////////////////////////////////////////// +// +/// \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; +} |