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			660 lines
		
	
	
		
			32 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			660 lines
		
	
	
		
			32 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
// Copyright (c) 2015-2021 MinIO, Inc.
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//
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// This file is part of MinIO Object Storage stack
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (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 Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program.  If not, see <http://www.gnu.org/licenses/>.
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package cmd
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import (
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	"fmt"
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	"math/rand"
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	"reflect"
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	"sort"
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	"testing"
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	"time"
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)
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func Test_metaCacheEntries_sort(t *testing.T) {
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	entries := loadMetacacheSampleEntries(t)
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	o := entries.entries()
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	if !o.isSorted() {
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		t.Fatal("Expected sorted objects")
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	}
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	// Swap first and last
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	o[0], o[len(o)-1] = o[len(o)-1], o[0]
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	if o.isSorted() {
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		t.Fatal("Expected unsorted objects")
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	}
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	sorted := o.sort()
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	if !o.isSorted() {
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		t.Fatal("Expected sorted o objects")
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	}
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	if !sorted.entries().isSorted() {
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		t.Fatal("Expected sorted wrapped objects")
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	}
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	want := loadMetacacheSampleNames
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	for i, got := range o {
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		if got.name != want[i] {
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			t.Errorf("entry %d, want %q, got %q", i, want[i], got.name)
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		}
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	}
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}
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func Test_metaCacheEntries_forwardTo(t *testing.T) {
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	org := loadMetacacheSampleEntries(t)
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	entries := org
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	want := []string{"src/compress/zlib/reader_test.go", "src/compress/zlib/writer.go", "src/compress/zlib/writer_test.go"}
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	entries.forwardTo("src/compress/zlib/reader_test.go")
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	got := entries.entries().names()
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	if !reflect.DeepEqual(got, want) {
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		t.Errorf("got unexpected result: %#v", got)
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	}
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	// Try with prefix
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	entries = org
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	entries.forwardTo("src/compress/zlib/reader_t")
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	got = entries.entries().names()
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	if !reflect.DeepEqual(got, want) {
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		t.Errorf("got unexpected result: %#v", got)
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	}
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}
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func Test_metaCacheEntries_merge(t *testing.T) {
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	org := loadMetacacheSampleEntries(t)
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	a, b := org.shallowClone(), org.shallowClone()
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	be := b.entries()
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	for i := range be {
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		//  Modify b so it isn't deduplicated.
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		be[i].metadata = []byte("something-else")
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	}
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	// Merge b into a
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	a.merge(b, -1)
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	//nolint:gocritic
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	want := append(loadMetacacheSampleNames, loadMetacacheSampleNames...)
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	sort.Strings(want)
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	got := a.entries().names()
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	if len(got) != len(want) {
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		t.Errorf("unexpected count, want %v, got %v", len(want), len(got))
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	}
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	for i, name := range got {
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		if want[i] != name {
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			t.Errorf("unexpected name, want %q, got %q", want[i], name)
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		}
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	}
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}
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func Test_metaCacheEntries_filterObjects(t *testing.T) {
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	data := loadMetacacheSampleEntries(t)
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	data.filterObjectsOnly()
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	got := data.entries().names()
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	want := []string{"src/compress/bzip2/bit_reader.go", "src/compress/bzip2/bzip2.go", "src/compress/bzip2/bzip2_test.go", "src/compress/bzip2/huffman.go", "src/compress/bzip2/move_to_front.go", "src/compress/bzip2/testdata/Isaac.Newton-Opticks.txt.bz2", "src/compress/bzip2/testdata/e.txt.bz2", "src/compress/bzip2/testdata/fail-issue5747.bz2", "src/compress/bzip2/testdata/pass-random1.bin", "src/compress/bzip2/testdata/pass-random1.bz2", "src/compress/bzip2/testdata/pass-random2.bin", "src/compress/bzip2/testdata/pass-random2.bz2", "src/compress/bzip2/testdata/pass-sawtooth.bz2", "src/compress/bzip2/testdata/random.data.bz2", "src/compress/flate/deflate.go", "src/compress/flate/deflate_test.go", "src/compress/flate/deflatefast.go", "src/compress/flate/dict_decoder.go", "src/compress/flate/dict_decoder_test.go", "src/compress/flate/example_test.go", "src/compress/flate/flate_test.go", "src/compress/flate/huffman_bit_writer.go", "src/compress/flate/huffman_bit_writer_test.go", "src/compress/flate/huffman_code.go", "src/compress/flate/inflate.go", "src/compress/flate/inflate_test.go", "src/compress/flate/reader_test.go", "src/compress/flate/testdata/huffman-null-max.dyn.expect", "src/compress/flate/testdata/huffman-null-max.dyn.expect-noinput", "src/compress/flate/testdata/huffman-null-max.golden", "src/compress/flate/testdata/huffman-null-max.in", "src/compress/flate/testdata/huffman-null-max.wb.expect", "src/compress/flate/testdata/huffman-null-max.wb.expect-noinput", "src/compress/flate/testdata/huffman-pi.dyn.expect", "src/compress/flate/testdata/huffman-pi.dyn.expect-noinput", "src/compress/flate/testdata/huffman-pi.golden", "src/compress/flate/testdata/huffman-pi.in", "src/compress/flate/testdata/huffman-pi.wb.expect", "src/compress/flate/testdata/huffman-pi.wb.expect-noinput", "src/compress/flate/testdata/huffman-rand-1k.dyn.expect", "src/compress/flate/testdata/huffman-rand-1k.dyn.expect-noinput", "src/compress/flate/testdata/huffman-rand-1k.golden", "src/compress/flate/testdata/huffman-rand-1k.in", "src/compress/flate/testdata/huffman-rand-1k.wb.expect", "src/compress/flate/testdata/huffman-rand-1k.wb.expect-noinput", "src/compress/flate/testdata/huffman-rand-limit.dyn.expect", "src/compress/flate/testdata/huffman-rand-limit.dyn.expect-noinput", "src/compress/flate/testdata/huffman-rand-limit.golden", "src/compress/flate/testdata/huffman-rand-limit.in", "src/compress/flate/testdata/huffman-rand-limit.wb.expect", "src/compress/flate/testdata/huffman-rand-limit.wb.expect-noinput", "src/compress/flate/testdata/huffman-rand-max.golden", "src/compress/flate/testdata/huffman-rand-max.in", "src/compress/flate/testdata/huffman-shifts.dyn.expect", "src/compress/flate/testdata/huffman-shifts.dyn.expect-noinput", "src/compress/flate/testdata/huffman-shifts.golden", "src/compress/flate/testdata/huffman-shifts.in", "src/compress/flate/testdata/huffman-shifts.wb.expect", "src/compress/flate/testdata/huffman-shifts.wb.expect-noinput", "src/compress/flate/testdata/huffman-text-shift.dyn.expect", "src/compress/flate/testdata/huffman-text-shift.dyn.expect-noinput", "src/compress/flate/testdata/huffman-text-shift.golden", "src/compress/flate/testdata/huffman-text-shift.in", "src/compress/flate/testdata/huffman-text-shift.wb.expect", "src/compress/flate/testdata/huffman-text-shift.wb.expect-noinput", "src/compress/flate/testdata/huffman-text.dyn.expect", "src/compress/flate/testdata/huffman-text.dyn.expect-noinput", "src/compress/flate/testdata/huffman-text.golden", "src/compress/flate/testdata/huffman-text.in", "src/compress/flate/testdata/huffman-text.wb.expect", "src/compress/flate/testdata/huffman-text.wb.expect-noinput", "src/compress/flate/testdata/huffman-zero.dyn.expect", "src/compress/flate/testdata/huffman-zero.dyn.expect-noinput", "src/compress/flate/testdata/huffman-zero.golden", "src/compress/flate/testdata/huffman-zero.in", "src/compress/flate/testdata/huffman-zero.wb.expect", "src/compress/flate/testdata/huffman-zero.wb.expect-noinput", "src/compress/flate/testdata/null-long-match.dyn.expect-noinput", "src/compress/flate/testdata/null-long-match.wb.expect-noinput", "src/compress/flate/token.go", "src/compress/flate/writer_test.go", "src/compress/gzip/example_test.go", "src/compress/gzip/gunzip.go", "src/compress/gzip/gunzip_test.go", "src/compress/gzip/gzip.go", "src/compress/gzip/gzip_test.go", "src/compress/gzip/issue14937_test.go", "src/compress/gzip/testdata/issue6550.gz.base64", "src/compress/lzw/reader.go", "src/compress/lzw/reader_test.go", "src/compress/lzw/writer.go", "src/compress/lzw/writer_test.go", "src/compress/testdata/e.txt", "src/compress/testdata/gettysburg.txt", "src/compress/testdata/pi.txt", "src/compress/zlib/example_test.go", "src/compress/zlib/reader.go", "src/compress/zlib/reader_test.go", "src/compress/zlib/writer.go", "src/compress/zlib/writer_test.go"}
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	if !reflect.DeepEqual(want, got) {
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		t.Errorf("got unexpected result: %#v", got)
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	}
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}
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func Test_metaCacheEntries_filterPrefixes(t *testing.T) {
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	data := loadMetacacheSampleEntries(t)
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	data.filterPrefixesOnly()
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	got := data.entries().names()
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	want := []string{"src/compress/bzip2/", "src/compress/bzip2/testdata/", "src/compress/flate/", "src/compress/flate/testdata/", "src/compress/gzip/", "src/compress/gzip/testdata/", "src/compress/lzw/", "src/compress/testdata/", "src/compress/zlib/"}
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	if !reflect.DeepEqual(want, got) {
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		t.Errorf("got unexpected result: %#v", got)
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	}
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}
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func Test_metaCacheEntries_filterRecursive(t *testing.T) {
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	data := loadMetacacheSampleEntries(t)
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	data.filterRecursiveEntries("src/compress/bzip2/", slashSeparator)
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	got := data.entries().names()
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	want := []string{"src/compress/bzip2/", "src/compress/bzip2/bit_reader.go", "src/compress/bzip2/bzip2.go", "src/compress/bzip2/bzip2_test.go", "src/compress/bzip2/huffman.go", "src/compress/bzip2/move_to_front.go"}
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	if !reflect.DeepEqual(want, got) {
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		t.Errorf("got unexpected result: %#v", got)
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	}
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}
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func Test_metaCacheEntries_filterRecursiveRoot(t *testing.T) {
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	data := loadMetacacheSampleEntries(t)
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	data.filterRecursiveEntries("", slashSeparator)
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	got := data.entries().names()
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	want := []string{}
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	if !reflect.DeepEqual(want, got) {
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		t.Errorf("got unexpected result: %#v", got)
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	}
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}
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func Test_metaCacheEntries_filterRecursiveRootSep(t *testing.T) {
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	data := loadMetacacheSampleEntries(t)
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	// This will remove anything with "bzip2/" in the path since it is separator
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	data.filterRecursiveEntries("", "bzip2/")
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	got := data.entries().names()
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	want := []string{"src/compress/flate/", "src/compress/flate/deflate.go", "src/compress/flate/deflate_test.go", "src/compress/flate/deflatefast.go", "src/compress/flate/dict_decoder.go", "src/compress/flate/dict_decoder_test.go", "src/compress/flate/example_test.go", "src/compress/flate/flate_test.go", "src/compress/flate/huffman_bit_writer.go", "src/compress/flate/huffman_bit_writer_test.go", "src/compress/flate/huffman_code.go", "src/compress/flate/inflate.go", "src/compress/flate/inflate_test.go", "src/compress/flate/reader_test.go", "src/compress/flate/testdata/", "src/compress/flate/testdata/huffman-null-max.dyn.expect", "src/compress/flate/testdata/huffman-null-max.dyn.expect-noinput", "src/compress/flate/testdata/huffman-null-max.golden", "src/compress/flate/testdata/huffman-null-max.in", "src/compress/flate/testdata/huffman-null-max.wb.expect", "src/compress/flate/testdata/huffman-null-max.wb.expect-noinput", "src/compress/flate/testdata/huffman-pi.dyn.expect", "src/compress/flate/testdata/huffman-pi.dyn.expect-noinput", "src/compress/flate/testdata/huffman-pi.golden", "src/compress/flate/testdata/huffman-pi.in", "src/compress/flate/testdata/huffman-pi.wb.expect", "src/compress/flate/testdata/huffman-pi.wb.expect-noinput", "src/compress/flate/testdata/huffman-rand-1k.dyn.expect", "src/compress/flate/testdata/huffman-rand-1k.dyn.expect-noinput", "src/compress/flate/testdata/huffman-rand-1k.golden", "src/compress/flate/testdata/huffman-rand-1k.in", "src/compress/flate/testdata/huffman-rand-1k.wb.expect", "src/compress/flate/testdata/huffman-rand-1k.wb.expect-noinput", "src/compress/flate/testdata/huffman-rand-limit.dyn.expect", "src/compress/flate/testdata/huffman-rand-limit.dyn.expect-noinput", "src/compress/flate/testdata/huffman-rand-limit.golden", "src/compress/flate/testdata/huffman-rand-limit.in", "src/compress/flate/testdata/huffman-rand-limit.wb.expect", "src/compress/flate/testdata/huffman-rand-limit.wb.expect-noinput", "src/compress/flate/testdata/huffman-rand-max.golden", "src/compress/flate/testdata/huffman-rand-max.in", "src/compress/flate/testdata/huffman-shifts.dyn.expect", "src/compress/flate/testdata/huffman-shifts.dyn.expect-noinput", "src/compress/flate/testdata/huffman-shifts.golden", "src/compress/flate/testdata/huffman-shifts.in", "src/compress/flate/testdata/huffman-shifts.wb.expect", "src/compress/flate/testdata/huffman-shifts.wb.expect-noinput", "src/compress/flate/testdata/huffman-text-shift.dyn.expect", "src/compress/flate/testdata/huffman-text-shift.dyn.expect-noinput", "src/compress/flate/testdata/huffman-text-shift.golden", "src/compress/flate/testdata/huffman-text-shift.in", "src/compress/flate/testdata/huffman-text-shift.wb.expect", "src/compress/flate/testdata/huffman-text-shift.wb.expect-noinput", "src/compress/flate/testdata/huffman-text.dyn.expect", "src/compress/flate/testdata/huffman-text.dyn.expect-noinput", "src/compress/flate/testdata/huffman-text.golden", "src/compress/flate/testdata/huffman-text.in", "src/compress/flate/testdata/huffman-text.wb.expect", "src/compress/flate/testdata/huffman-text.wb.expect-noinput", "src/compress/flate/testdata/huffman-zero.dyn.expect", "src/compress/flate/testdata/huffman-zero.dyn.expect-noinput", "src/compress/flate/testdata/huffman-zero.golden", "src/compress/flate/testdata/huffman-zero.in", "src/compress/flate/testdata/huffman-zero.wb.expect", "src/compress/flate/testdata/huffman-zero.wb.expect-noinput", "src/compress/flate/testdata/null-long-match.dyn.expect-noinput", "src/compress/flate/testdata/null-long-match.wb.expect-noinput", "src/compress/flate/token.go", "src/compress/flate/writer_test.go", "src/compress/gzip/", "src/compress/gzip/example_test.go", "src/compress/gzip/gunzip.go", "src/compress/gzip/gunzip_test.go", "src/compress/gzip/gzip.go", "src/compress/gzip/gzip_test.go", "src/compress/gzip/issue14937_test.go", "src/compress/gzip/testdata/", "src/compress/gzip/testdata/issue6550.gz.base64", "src/compress/lzw/", "src/compress/lzw/reader.go", "src/compress/lzw/reader_test.go", "src/compress/lzw/writer.go", "src/compress/lzw/writer_test.go", "src/compress/testdata/", "src/compress/testdata/e.txt", "src/compress/testdata/gettysburg.txt", "src/compress/testdata/pi.txt", "src/compress/zlib/", "src/compress/zlib/example_test.go", "src/compress/zlib/reader.go", "src/compress/zlib/reader_test.go", "src/compress/zlib/writer.go", "src/compress/zlib/writer_test.go"}
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	if !reflect.DeepEqual(want, got) {
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		t.Errorf("got unexpected result: %#v", got)
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	}
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}
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func Test_metaCacheEntries_filterPrefix(t *testing.T) {
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	data := loadMetacacheSampleEntries(t)
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	data.filterPrefix("src/compress/bzip2/")
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	got := data.entries().names()
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	want := []string{"src/compress/bzip2/", "src/compress/bzip2/bit_reader.go", "src/compress/bzip2/bzip2.go", "src/compress/bzip2/bzip2_test.go", "src/compress/bzip2/huffman.go", "src/compress/bzip2/move_to_front.go", "src/compress/bzip2/testdata/", "src/compress/bzip2/testdata/Isaac.Newton-Opticks.txt.bz2", "src/compress/bzip2/testdata/e.txt.bz2", "src/compress/bzip2/testdata/fail-issue5747.bz2", "src/compress/bzip2/testdata/pass-random1.bin", "src/compress/bzip2/testdata/pass-random1.bz2", "src/compress/bzip2/testdata/pass-random2.bin", "src/compress/bzip2/testdata/pass-random2.bz2", "src/compress/bzip2/testdata/pass-sawtooth.bz2", "src/compress/bzip2/testdata/random.data.bz2"}
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						|
	if !reflect.DeepEqual(want, got) {
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		t.Errorf("got unexpected result: %#v", got)
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	}
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}
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func Test_metaCacheEntry_isInDir(t *testing.T) {
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	tests := []struct {
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		testName string
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		entry    string
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						|
		dir      string
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						|
		sep      string
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						|
		want     bool
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	}{
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						|
		{
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						|
			testName: "basic-file",
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			entry:    "src/file",
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						|
			dir:      "src/",
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			sep:      slashSeparator,
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						|
			want:     true,
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						|
		},
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						|
		{
 | 
						|
			testName: "basic-dir",
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						|
			entry:    "src/dir/",
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						|
			dir:      "src/",
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						|
			sep:      slashSeparator,
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			want:     true,
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						|
		},
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						|
		{
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			testName: "deeper-file",
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						|
			entry:    "src/dir/somewhere.ext",
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			dir:      "src/",
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			sep:      slashSeparator,
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			want:     false,
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						|
		},
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						|
		{
 | 
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			testName: "deeper-dir",
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			entry:    "src/dir/somewhere/",
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						|
			dir:      "src/",
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						|
			sep:      slashSeparator,
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			want:     false,
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						|
		},
 | 
						|
		{
 | 
						|
			testName: "root-dir",
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						|
			entry:    "doc/",
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						|
			dir:      "",
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						|
			sep:      slashSeparator,
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						|
			want:     true,
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						|
		},
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						|
		{
 | 
						|
			testName: "root-file",
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						|
			entry:    "word.doc",
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						|
			dir:      "",
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						|
			sep:      slashSeparator,
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						|
			want:     true,
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		},
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	}
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						|
	for _, tt := range tests {
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						|
		t.Run(tt.testName, func(t *testing.T) {
 | 
						|
			e := metaCacheEntry{
 | 
						|
				name: tt.entry,
 | 
						|
			}
 | 
						|
			if got := e.isInDir(tt.dir, tt.sep); got != tt.want {
 | 
						|
				t.Errorf("isInDir() = %v, want %v", got, tt.want)
 | 
						|
			}
 | 
						|
		})
 | 
						|
	}
 | 
						|
}
 | 
						|
 | 
						|
func Test_metaCacheEntries_resolve(t *testing.T) {
 | 
						|
	baseTime, err := time.Parse("2006/01/02", "2015/02/25")
 | 
						|
	if err != nil {
 | 
						|
		t.Fatal(err)
 | 
						|
	}
 | 
						|
	inputs := []xlMetaV2{
 | 
						|
		0: {
 | 
						|
			versions: []xlMetaV2ShallowVersion{
 | 
						|
				{header: xlMetaV2VersionHeader{
 | 
						|
					VersionID: [16]byte{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
 | 
						|
					ModTime:   baseTime.Add(30 * time.Minute).UnixNano(),
 | 
						|
					Signature: [4]byte{1, 1, 1, 1},
 | 
						|
					Type:      ObjectType,
 | 
						|
					Flags:     0,
 | 
						|
				}},
 | 
						|
			},
 | 
						|
		},
 | 
						|
		// Mismatches Modtime+Signature and older...
 | 
						|
		1: {
 | 
						|
			versions: []xlMetaV2ShallowVersion{
 | 
						|
				{header: xlMetaV2VersionHeader{
 | 
						|
					VersionID: [16]byte{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
 | 
						|
					ModTime:   baseTime.Add(15 * time.Minute).UnixNano(),
 | 
						|
					Signature: [4]byte{2, 1, 1, 1},
 | 
						|
					Type:      ObjectType,
 | 
						|
					Flags:     0,
 | 
						|
				}},
 | 
						|
			},
 | 
						|
		},
 | 
						|
		// Has another version prior to the one we want.
 | 
						|
		2: {
 | 
						|
			versions: []xlMetaV2ShallowVersion{
 | 
						|
				{header: xlMetaV2VersionHeader{
 | 
						|
					VersionID: [16]byte{2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
 | 
						|
					ModTime:   baseTime.Add(60 * time.Minute).UnixNano(),
 | 
						|
					Signature: [4]byte{2, 1, 1, 1},
 | 
						|
					Type:      ObjectType,
 | 
						|
					Flags:     0,
 | 
						|
				}},
 | 
						|
				{header: xlMetaV2VersionHeader{
 | 
						|
					VersionID: [16]byte{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
 | 
						|
					ModTime:   baseTime.Add(30 * time.Minute).UnixNano(),
 | 
						|
					Signature: [4]byte{1, 1, 1, 1},
 | 
						|
					Type:      ObjectType,
 | 
						|
					Flags:     0,
 | 
						|
				}},
 | 
						|
			},
 | 
						|
		},
 | 
						|
		// Has a completely different version id
 | 
						|
		3: {
 | 
						|
			versions: []xlMetaV2ShallowVersion{
 | 
						|
				{header: xlMetaV2VersionHeader{
 | 
						|
					VersionID: [16]byte{3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
 | 
						|
					ModTime:   baseTime.Add(60 * time.Minute).UnixNano(),
 | 
						|
					Signature: [4]byte{1, 1, 1, 1},
 | 
						|
					Type:      ObjectType,
 | 
						|
					Flags:     0,
 | 
						|
				}},
 | 
						|
			},
 | 
						|
		},
 | 
						|
		4: {
 | 
						|
			versions: []xlMetaV2ShallowVersion{},
 | 
						|
		},
 | 
						|
		// Has a zero version id
 | 
						|
		5: {
 | 
						|
			versions: []xlMetaV2ShallowVersion{
 | 
						|
				{header: xlMetaV2VersionHeader{
 | 
						|
					VersionID: [16]byte{},
 | 
						|
					ModTime:   baseTime.Add(60 * time.Minute).UnixNano(),
 | 
						|
					Signature: [4]byte{5, 1, 1, 1},
 | 
						|
					Type:      ObjectType,
 | 
						|
					Flags:     0,
 | 
						|
				}},
 | 
						|
			},
 | 
						|
		},
 | 
						|
		// Zero version, modtime newer..
 | 
						|
		6: {
 | 
						|
			versions: []xlMetaV2ShallowVersion{
 | 
						|
				{header: xlMetaV2VersionHeader{
 | 
						|
					VersionID: [16]byte{},
 | 
						|
					ModTime:   baseTime.Add(90 * time.Minute).UnixNano(),
 | 
						|
					Signature: [4]byte{6, 1, 1, 1},
 | 
						|
					Type:      ObjectType,
 | 
						|
					Flags:     0,
 | 
						|
				}},
 | 
						|
			},
 | 
						|
		},
 | 
						|
		7: {
 | 
						|
			versions: []xlMetaV2ShallowVersion{
 | 
						|
				{header: xlMetaV2VersionHeader{
 | 
						|
					VersionID: [16]byte{},
 | 
						|
					ModTime:   baseTime.Add(90 * time.Minute).UnixNano(),
 | 
						|
					Signature: [4]byte{6, 1, 1, 1},
 | 
						|
					Type:      ObjectType,
 | 
						|
					Flags:     0,
 | 
						|
				}},
 | 
						|
				{header: xlMetaV2VersionHeader{
 | 
						|
					VersionID: [16]byte{2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
 | 
						|
					ModTime:   baseTime.Add(60 * time.Minute).UnixNano(),
 | 
						|
					Signature: [4]byte{2, 1, 1, 1},
 | 
						|
					Type:      ObjectType,
 | 
						|
					Flags:     0,
 | 
						|
				}},
 | 
						|
				{header: xlMetaV2VersionHeader{
 | 
						|
					VersionID: [16]byte{3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
 | 
						|
					ModTime:   baseTime.Add(60 * time.Minute).UnixNano(),
 | 
						|
					Signature: [4]byte{1, 1, 1, 1},
 | 
						|
					Type:      ObjectType,
 | 
						|
					Flags:     0,
 | 
						|
				}},
 | 
						|
 | 
						|
				{header: xlMetaV2VersionHeader{
 | 
						|
					VersionID: [16]byte{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
 | 
						|
					ModTime:   baseTime.Add(30 * time.Minute).UnixNano(),
 | 
						|
					Signature: [4]byte{1, 1, 1, 1},
 | 
						|
					Type:      ObjectType,
 | 
						|
					Flags:     0,
 | 
						|
				}},
 | 
						|
			},
 | 
						|
		},
 | 
						|
		// Delete marker.
 | 
						|
		8: {
 | 
						|
			versions: []xlMetaV2ShallowVersion{
 | 
						|
				{header: xlMetaV2VersionHeader{
 | 
						|
					VersionID: [16]byte{7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7},
 | 
						|
					ModTime:   baseTime.Add(90 * time.Minute).UnixNano(),
 | 
						|
					Signature: [4]byte{6, 1, 1, 1},
 | 
						|
					Type:      DeleteType,
 | 
						|
					Flags:     0,
 | 
						|
				}},
 | 
						|
			},
 | 
						|
		},
 | 
						|
		// Delete marker and version from 1
 | 
						|
		9: {
 | 
						|
			versions: []xlMetaV2ShallowVersion{
 | 
						|
				{header: xlMetaV2VersionHeader{
 | 
						|
					VersionID: [16]byte{7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7},
 | 
						|
					ModTime:   baseTime.Add(90 * time.Minute).UnixNano(),
 | 
						|
					Signature: [4]byte{6, 1, 1, 1},
 | 
						|
					Type:      DeleteType,
 | 
						|
					Flags:     0,
 | 
						|
				}},
 | 
						|
				{header: xlMetaV2VersionHeader{
 | 
						|
					VersionID: [16]byte{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
 | 
						|
					ModTime:   baseTime.Add(15 * time.Minute).UnixNano(),
 | 
						|
					Signature: [4]byte{2, 1, 1, 1},
 | 
						|
					Type:      ObjectType,
 | 
						|
					Flags:     0,
 | 
						|
				}},
 | 
						|
			},
 | 
						|
		},
 | 
						|
	}
 | 
						|
	inputSerialized := make([]metaCacheEntry, len(inputs))
 | 
						|
	for i, xl := range inputs {
 | 
						|
		xl.sortByModTime()
 | 
						|
		var err error
 | 
						|
		entry := metaCacheEntry{
 | 
						|
			name: "testobject",
 | 
						|
		}
 | 
						|
		entry.metadata, err = xl.AppendTo(nil)
 | 
						|
		if err != nil {
 | 
						|
			t.Fatal(err)
 | 
						|
		}
 | 
						|
		inputSerialized[i] = entry
 | 
						|
	}
 | 
						|
 | 
						|
	tests := []struct {
 | 
						|
		name         string
 | 
						|
		m            metaCacheEntries
 | 
						|
		r            metadataResolutionParams
 | 
						|
		wantSelected *metaCacheEntry
 | 
						|
		wantOk       bool
 | 
						|
	}{
 | 
						|
		{
 | 
						|
			name:         "consistent",
 | 
						|
			m:            metaCacheEntries{inputSerialized[0], inputSerialized[0], inputSerialized[0], inputSerialized[0]},
 | 
						|
			r:            metadataResolutionParams{dirQuorum: 4, objQuorum: 4, strict: false},
 | 
						|
			wantSelected: &inputSerialized[0],
 | 
						|
			wantOk:       true,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			name:         "consistent-strict",
 | 
						|
			m:            metaCacheEntries{inputSerialized[0], inputSerialized[0], inputSerialized[0], inputSerialized[0]},
 | 
						|
			r:            metadataResolutionParams{dirQuorum: 4, objQuorum: 4, strict: false},
 | 
						|
			wantSelected: &inputSerialized[0],
 | 
						|
			wantOk:       true,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			name:         "one zero, below quorum",
 | 
						|
			m:            metaCacheEntries{inputSerialized[0], inputSerialized[0], inputSerialized[0], metaCacheEntry{}},
 | 
						|
			r:            metadataResolutionParams{dirQuorum: 4, objQuorum: 4, strict: false},
 | 
						|
			wantSelected: nil,
 | 
						|
			wantOk:       false,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			name:         "one zero, below quorum, strict",
 | 
						|
			m:            metaCacheEntries{inputSerialized[0], inputSerialized[0], inputSerialized[0], metaCacheEntry{}},
 | 
						|
			r:            metadataResolutionParams{dirQuorum: 4, objQuorum: 4, strict: true},
 | 
						|
			wantSelected: nil,
 | 
						|
			wantOk:       false,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			name:         "one zero, at quorum",
 | 
						|
			m:            metaCacheEntries{inputSerialized[0], inputSerialized[0], inputSerialized[0], metaCacheEntry{}},
 | 
						|
			r:            metadataResolutionParams{dirQuorum: 3, objQuorum: 3, strict: false},
 | 
						|
			wantSelected: &inputSerialized[0],
 | 
						|
			wantOk:       true,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			name:         "one zero, at quorum, strict",
 | 
						|
			m:            metaCacheEntries{inputSerialized[0], inputSerialized[0], inputSerialized[0], metaCacheEntry{}},
 | 
						|
			r:            metadataResolutionParams{dirQuorum: 3, objQuorum: 3, strict: true},
 | 
						|
			wantSelected: &inputSerialized[0],
 | 
						|
			wantOk:       true,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			name:         "modtime, signature mismatch",
 | 
						|
			m:            metaCacheEntries{inputSerialized[0], inputSerialized[0], inputSerialized[0], inputSerialized[1]},
 | 
						|
			r:            metadataResolutionParams{dirQuorum: 4, objQuorum: 4, strict: false},
 | 
						|
			wantSelected: &inputSerialized[0],
 | 
						|
			wantOk:       true,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			name:         "modtime,signature mismatch, strict",
 | 
						|
			m:            metaCacheEntries{inputSerialized[0], inputSerialized[0], inputSerialized[0], inputSerialized[1]},
 | 
						|
			r:            metadataResolutionParams{dirQuorum: 4, objQuorum: 4, strict: true},
 | 
						|
			wantSelected: nil,
 | 
						|
			wantOk:       false,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			name:         "modtime, signature mismatch, at quorum",
 | 
						|
			m:            metaCacheEntries{inputSerialized[0], inputSerialized[0], inputSerialized[0], inputSerialized[1]},
 | 
						|
			r:            metadataResolutionParams{dirQuorum: 3, objQuorum: 3, strict: false},
 | 
						|
			wantSelected: &inputSerialized[0],
 | 
						|
			wantOk:       true,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			name:         "modtime,signature mismatch, at quorum, strict",
 | 
						|
			m:            metaCacheEntries{inputSerialized[0], inputSerialized[0], inputSerialized[0], inputSerialized[1]},
 | 
						|
			r:            metadataResolutionParams{dirQuorum: 3, objQuorum: 3, strict: true},
 | 
						|
			wantSelected: &inputSerialized[0],
 | 
						|
			wantOk:       true,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			name:         "additional version",
 | 
						|
			m:            metaCacheEntries{inputSerialized[0], inputSerialized[0], inputSerialized[0], inputSerialized[2]},
 | 
						|
			r:            metadataResolutionParams{dirQuorum: 4, objQuorum: 4, strict: false},
 | 
						|
			wantSelected: &inputSerialized[0],
 | 
						|
			wantOk:       true,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			// Since we have the same version in all inputs, that is strictly ok.
 | 
						|
			name:         "additional version, strict",
 | 
						|
			m:            metaCacheEntries{inputSerialized[0], inputSerialized[0], inputSerialized[0], inputSerialized[2]},
 | 
						|
			r:            metadataResolutionParams{dirQuorum: 4, objQuorum: 4, strict: true},
 | 
						|
			wantSelected: &inputSerialized[0],
 | 
						|
			wantOk:       true,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			// Since we have the same version in all inputs, that is strictly ok.
 | 
						|
			name: "additional version, quorum one",
 | 
						|
			m:    metaCacheEntries{inputSerialized[0], inputSerialized[0], inputSerialized[0], inputSerialized[2]},
 | 
						|
			r:    metadataResolutionParams{dirQuorum: 1, objQuorum: 1, strict: true},
 | 
						|
			// We get the both versions, since we only request quorum 1
 | 
						|
			wantSelected: &inputSerialized[2],
 | 
						|
			wantOk:       true,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			name:         "additional version, quorum two",
 | 
						|
			m:            metaCacheEntries{inputSerialized[0], inputSerialized[0], inputSerialized[0], inputSerialized[2]},
 | 
						|
			r:            metadataResolutionParams{dirQuorum: 2, objQuorum: 2, strict: true},
 | 
						|
			wantSelected: &inputSerialized[0],
 | 
						|
			wantOk:       true,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			name:         "2 additional versions, quorum two",
 | 
						|
			m:            metaCacheEntries{inputSerialized[0], inputSerialized[0], inputSerialized[2], inputSerialized[2]},
 | 
						|
			r:            metadataResolutionParams{dirQuorum: 2, objQuorum: 2, strict: true},
 | 
						|
			wantSelected: &inputSerialized[2],
 | 
						|
			wantOk:       true,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			// inputSerialized[1] have older versions of the second in inputSerialized[2]
 | 
						|
			name:         "modtimemismatch",
 | 
						|
			m:            metaCacheEntries{inputSerialized[1], inputSerialized[1], inputSerialized[2], inputSerialized[2]},
 | 
						|
			r:            metadataResolutionParams{dirQuorum: 2, objQuorum: 2, strict: false},
 | 
						|
			wantSelected: &inputSerialized[2],
 | 
						|
			wantOk:       true,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			// inputSerialized[1] have older versions of the second in inputSerialized[2]
 | 
						|
			name:         "modtimemismatch,strict",
 | 
						|
			m:            metaCacheEntries{inputSerialized[1], inputSerialized[1], inputSerialized[2], inputSerialized[2]},
 | 
						|
			r:            metadataResolutionParams{dirQuorum: 2, objQuorum: 2, strict: true},
 | 
						|
			wantSelected: &inputSerialized[2],
 | 
						|
			wantOk:       true,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			// inputSerialized[1] have older versions of the second in inputSerialized[2], but
 | 
						|
			// since it is not strict, we should get it that one (with latest modtime)
 | 
						|
			name:         "modtimemismatch,not strict",
 | 
						|
			m:            metaCacheEntries{inputSerialized[1], inputSerialized[1], inputSerialized[2], inputSerialized[2]},
 | 
						|
			r:            metadataResolutionParams{dirQuorum: 4, objQuorum: 4, strict: false},
 | 
						|
			wantSelected: &inputSerialized[0],
 | 
						|
			wantOk:       true,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			name:         "one-q1",
 | 
						|
			m:            metaCacheEntries{inputSerialized[0], inputSerialized[4], inputSerialized[4], inputSerialized[4]},
 | 
						|
			r:            metadataResolutionParams{dirQuorum: 1, objQuorum: 1, strict: false},
 | 
						|
			wantSelected: &inputSerialized[0],
 | 
						|
			wantOk:       true,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			name:         "one-q1-strict",
 | 
						|
			m:            metaCacheEntries{inputSerialized[0], inputSerialized[4], inputSerialized[4], inputSerialized[4]},
 | 
						|
			r:            metadataResolutionParams{dirQuorum: 1, objQuorum: 1, strict: true},
 | 
						|
			wantSelected: &inputSerialized[0],
 | 
						|
			wantOk:       true,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			name:         "one-q2",
 | 
						|
			m:            metaCacheEntries{inputSerialized[0], inputSerialized[4], inputSerialized[4], inputSerialized[4]},
 | 
						|
			r:            metadataResolutionParams{dirQuorum: 2, objQuorum: 2, strict: false},
 | 
						|
			wantSelected: nil,
 | 
						|
			wantOk:       false,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			name:         "one-q2-strict",
 | 
						|
			m:            metaCacheEntries{inputSerialized[0], inputSerialized[4], inputSerialized[4], inputSerialized[4]},
 | 
						|
			r:            metadataResolutionParams{dirQuorum: 2, objQuorum: 2, strict: true},
 | 
						|
			wantSelected: nil,
 | 
						|
			wantOk:       false,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			name:         "two-diff-q2",
 | 
						|
			m:            metaCacheEntries{inputSerialized[0], inputSerialized[3], inputSerialized[4], inputSerialized[4]},
 | 
						|
			r:            metadataResolutionParams{dirQuorum: 2, objQuorum: 2, strict: false},
 | 
						|
			wantSelected: nil,
 | 
						|
			wantOk:       false,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			name:         "zeroid",
 | 
						|
			m:            metaCacheEntries{inputSerialized[5], inputSerialized[5], inputSerialized[6], inputSerialized[6]},
 | 
						|
			r:            metadataResolutionParams{dirQuorum: 2, objQuorum: 2, strict: false},
 | 
						|
			wantSelected: &inputSerialized[6],
 | 
						|
			wantOk:       true,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			// When ID is zero, do not allow non-strict matches to reach quorum.
 | 
						|
			name:         "zeroid-belowq",
 | 
						|
			m:            metaCacheEntries{inputSerialized[5], inputSerialized[5], inputSerialized[6], inputSerialized[6]},
 | 
						|
			r:            metadataResolutionParams{dirQuorum: 3, objQuorum: 3, strict: false},
 | 
						|
			wantSelected: nil,
 | 
						|
			wantOk:       false,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			name:         "merge4",
 | 
						|
			m:            metaCacheEntries{inputSerialized[2], inputSerialized[3], inputSerialized[5], inputSerialized[6]},
 | 
						|
			r:            metadataResolutionParams{dirQuorum: 1, objQuorum: 1, strict: false},
 | 
						|
			wantSelected: &inputSerialized[7],
 | 
						|
			wantOk:       true,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			name:         "deletemarker",
 | 
						|
			m:            metaCacheEntries{inputSerialized[8], inputSerialized[4], inputSerialized[4], inputSerialized[4]},
 | 
						|
			r:            metadataResolutionParams{dirQuorum: 1, objQuorum: 1, strict: false},
 | 
						|
			wantSelected: &inputSerialized[8],
 | 
						|
			wantOk:       true,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			name:         "deletemarker-nonq",
 | 
						|
			m:            metaCacheEntries{inputSerialized[8], inputSerialized[8], inputSerialized[4], inputSerialized[4]},
 | 
						|
			r:            metadataResolutionParams{dirQuorum: 3, objQuorum: 3, strict: false},
 | 
						|
			wantSelected: nil,
 | 
						|
			wantOk:       false,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			name:         "deletemarker-nonq",
 | 
						|
			m:            metaCacheEntries{inputSerialized[8], inputSerialized[8], inputSerialized[8], inputSerialized[1]},
 | 
						|
			r:            metadataResolutionParams{dirQuorum: 3, objQuorum: 3, strict: false},
 | 
						|
			wantSelected: &inputSerialized[8],
 | 
						|
			wantOk:       true,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			name:         "deletemarker-mixed",
 | 
						|
			m:            metaCacheEntries{inputSerialized[8], inputSerialized[8], inputSerialized[1], inputSerialized[1]},
 | 
						|
			r:            metadataResolutionParams{dirQuorum: 2, objQuorum: 2, strict: false},
 | 
						|
			wantSelected: &inputSerialized[9],
 | 
						|
			wantOk:       true,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			name:         "deletemarker-q3",
 | 
						|
			m:            metaCacheEntries{inputSerialized[8], inputSerialized[9], inputSerialized[9], inputSerialized[1]},
 | 
						|
			r:            metadataResolutionParams{dirQuorum: 3, objQuorum: 3, strict: false},
 | 
						|
			wantSelected: &inputSerialized[9],
 | 
						|
			wantOk:       true,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			name:         "deletemarker-q3-strict",
 | 
						|
			m:            metaCacheEntries{inputSerialized[8], inputSerialized[9], inputSerialized[9], inputSerialized[1]},
 | 
						|
			r:            metadataResolutionParams{dirQuorum: 3, objQuorum: 3, strict: true},
 | 
						|
			wantSelected: &inputSerialized[9],
 | 
						|
			wantOk:       true,
 | 
						|
		},
 | 
						|
	}
 | 
						|
 | 
						|
	for testID, tt := range tests {
 | 
						|
		rng := rand.New(rand.NewSource(0))
 | 
						|
		// Run for a number of times, shuffling the input to ensure that output is consistent.
 | 
						|
		for i := 0; i < 10; i++ {
 | 
						|
			t.Run(fmt.Sprintf("test-%d-%s-run-%d", testID, tt.name, i), func(t *testing.T) {
 | 
						|
				if i > 0 {
 | 
						|
					rng.Shuffle(len(tt.m), func(i, j int) {
 | 
						|
						tt.m[i], tt.m[j] = tt.m[j], tt.m[i]
 | 
						|
					})
 | 
						|
				}
 | 
						|
				gotSelected, gotOk := tt.m.resolve(&tt.r)
 | 
						|
				if gotOk != tt.wantOk {
 | 
						|
					t.Errorf("resolve() gotOk = %v, want %v", gotOk, tt.wantOk)
 | 
						|
				}
 | 
						|
				if gotSelected != nil {
 | 
						|
					gotSelected.cached = nil
 | 
						|
					gotSelected.reusable = false
 | 
						|
				}
 | 
						|
				if !reflect.DeepEqual(gotSelected, tt.wantSelected) {
 | 
						|
					wantM, _ := tt.wantSelected.xlmeta()
 | 
						|
					gotM, _ := gotSelected.xlmeta()
 | 
						|
					t.Errorf("resolve() gotSelected = \n%#v, want \n%#v", *gotM, *wantM)
 | 
						|
				}
 | 
						|
			})
 | 
						|
		}
 | 
						|
	}
 | 
						|
}
 |