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authorLasse Collin <lasse.collin@tukaani.org>2008-01-25 19:21:22 +0200
committerLasse Collin <lasse.collin@tukaani.org>2008-01-25 19:21:22 +0200
commitbf4200c818fcf9102e56328d39cde91bfa13cfb6 (patch)
tree3048083a7019292a30dd2f6ea0298db822e12283 /tests
parentImproved the memory limitter: (diff)
downloadxz-bf4200c818fcf9102e56328d39cde91bfa13cfb6.tar.xz
Added test_memlimit.c.
Diffstat (limited to 'tests')
-rw-r--r--tests/Makefile.am2
-rw-r--r--tests/test_memlimit.c114
2 files changed, 116 insertions, 0 deletions
diff --git a/tests/Makefile.am b/tests/Makefile.am
index fa78bf81..3ecddf59 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -34,6 +34,7 @@ endif
check_PROGRAMS = \
create_compress_files \
+ test_memlimit \
test_check \
test_stream_flags \
test_filter_flags \
@@ -42,6 +43,7 @@ check_PROGRAMS = \
test_info
TESTS = \
+ test_memlimit \
test_check \
test_stream_flags \
test_filter_flags \
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;
+}