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https://github.com/s3fs-fuse/s3fs-fuse.git
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80 lines
2.4 KiB
C++
80 lines
2.4 KiB
C++
/*
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* s3fs - FUSE-based file system backed by Amazon S3
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*
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* Copyright(C) 2021 Andrew Gaul <andrew@gaul.org>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "fdcache_page.h"
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#include "fdcache_stat.h"
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#include "test_util.h"
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bool CacheFileStat::Open() { return false; }
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void test_compress()
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{
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PageList list;
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ASSERT_EQUALS(off_t(0), list.Size());
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list.Init(42, /*is_loaded=*/ false, /*is_modified=*/ false);
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ASSERT_EQUALS(off_t(42), list.Size());
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ASSERT_FALSE(list.IsPageLoaded(0, 1));
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list.SetPageLoadedStatus(0, 1, /*pstatus=*/ PageList::page_status::LOADED);
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ASSERT_TRUE(list.IsPageLoaded(0, 1));
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ASSERT_FALSE(list.IsPageLoaded(0, 2));
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off_t start = 0;
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off_t size = 0;
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ASSERT_TRUE(list.FindUnloadedPage(0, start, size));
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ASSERT_EQUALS(off_t(1), start);
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ASSERT_EQUALS(off_t(41), size);
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// test adding subsequent page then compressing
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list.SetPageLoadedStatus(1, 3, /*pstatus=*/ PageList::page_status::LOADED);
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list.Compress();
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ASSERT_TRUE(list.IsPageLoaded(0, 3));
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ASSERT_TRUE(list.FindUnloadedPage(0, start, size));
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ASSERT_EQUALS(off_t(4), start);
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ASSERT_EQUALS(off_t(38), size);
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// test adding non-contiguous page then compressing
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list.SetPageLoadedStatus(5, 1, /*pstatus=*/ PageList::page_status::LOADED);
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list.Compress();
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ASSERT_TRUE(list.FindUnloadedPage(0, start, size));
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ASSERT_EQUALS(off_t(4), start);
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ASSERT_EQUALS(off_t(1), size);
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list.Dump();
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printf("\n");
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// test adding page between two pages then compressing
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list.SetPageLoadedStatus(4, 1, /*pstatus=*/ PageList::page_status::LOADED);
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list.Compress();
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list.Dump();
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ASSERT_TRUE(list.FindUnloadedPage(0, start, size));
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ASSERT_EQUALS(off_t(6), start);
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ASSERT_EQUALS(off_t(36), size);
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}
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int main(int argc, char *argv[])
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{
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test_compress();
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return 0;
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}
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