mirror of https://github.com/restic/restic.git
89 lines
2.3 KiB
Go
89 lines
2.3 KiB
Go
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/*
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* Minio Go Library for Amazon S3 Compatible Cloud Storage (C) 2017 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package minio
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import (
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"reflect"
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"testing"
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)
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const (
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gb1 = 1024 * 1024 * 1024
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gb5 = 5 * gb1
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gb5p1 = gb5 + 1
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gb10p1 = 2*gb5 + 1
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gb10p2 = 2*gb5 + 2
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)
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func TestPartsRequired(t *testing.T) {
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testCases := []struct {
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size, ref int64
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}{
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{0, 0},
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{1, 1},
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{gb5, 1},
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{2 * gb5, 2},
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{gb10p1, 3},
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{gb10p2, 3},
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}
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for i, testCase := range testCases {
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res := partsRequired(testCase.size)
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if res != testCase.ref {
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t.Errorf("Test %d - output did not match with reference results", i+1)
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}
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}
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}
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func TestCalculateEvenSplits(t *testing.T) {
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testCases := []struct {
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// input size and source object
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size int64
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src SourceInfo
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// output part-indexes
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starts, ends []int64
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}{
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{0, SourceInfo{start: -1}, nil, nil},
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{1, SourceInfo{start: -1}, []int64{0}, []int64{0}},
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{1, SourceInfo{start: 0}, []int64{0}, []int64{0}},
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{gb1, SourceInfo{start: -1}, []int64{0}, []int64{gb1 - 1}},
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{gb5, SourceInfo{start: -1}, []int64{0}, []int64{gb5 - 1}},
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// 2 part splits
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{gb5p1, SourceInfo{start: -1}, []int64{0, gb5/2 + 1}, []int64{gb5 / 2, gb5}},
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{gb5p1, SourceInfo{start: -1}, []int64{0, gb5/2 + 1}, []int64{gb5 / 2, gb5}},
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// 3 part splits
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{gb10p1, SourceInfo{start: -1},
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[]int64{0, gb10p1/3 + 1, 2*gb10p1/3 + 1},
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[]int64{gb10p1 / 3, 2 * gb10p1 / 3, gb10p1 - 1}},
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{gb10p2, SourceInfo{start: -1},
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[]int64{0, gb10p2 / 3, 2 * gb10p2 / 3},
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[]int64{gb10p2/3 - 1, 2*gb10p2/3 - 1, gb10p2 - 1}},
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}
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for i, testCase := range testCases {
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resStart, resEnd := calculateEvenSplits(testCase.size, testCase.src)
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if !reflect.DeepEqual(testCase.starts, resStart) || !reflect.DeepEqual(testCase.ends, resEnd) {
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t.Errorf("Test %d - output did not match with reference results", i+1)
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}
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}
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}
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