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318 lines
12 KiB
318 lines
12 KiB
/*
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* MinIO Cloud Storage, (C) 2020 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 cmd
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import (
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"bytes"
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"encoding/hex"
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"encoding/json"
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"testing"
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"github.com/dustin/go-humanize"
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jsoniter "github.com/json-iterator/go"
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)
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func TestIsXLMetaFormatValid(t *testing.T) {
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tests := []struct {
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name int
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version string
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format string
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want bool
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}{
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{1, "123", "fs", false},
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{2, "123", xlMetaFormat, false},
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{3, xlMetaVersion100, "test", false},
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{4, xlMetaVersion101, "hello", false},
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{5, xlMetaVersion100, xlMetaFormat, true},
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{6, xlMetaVersion101, xlMetaFormat, true},
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}
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for _, tt := range tests {
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if got := isXLMetaFormatValid(tt.version, tt.format); got != tt.want {
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t.Errorf("Test %d: Expected %v but received %v", tt.name, got, tt.want)
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}
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}
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}
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func TestIsXLMetaErasureInfoValid(t *testing.T) {
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tests := []struct {
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name int
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data int
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parity int
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want bool
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}{
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{1, 5, 6, false},
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{2, 5, 5, true},
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{3, 0, 5, false},
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{4, 5, 0, false},
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{5, 5, 0, false},
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{6, 5, 4, true},
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}
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for _, tt := range tests {
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if got := isXLMetaErasureInfoValid(tt.data, tt.parity); got != tt.want {
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t.Errorf("Test %d: Expected %v but received %v", tt.name, got, tt.want)
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}
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}
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}
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// newTestXLMetaV1 - initializes new xlMetaV1Object, adds version, allocates a fresh erasure info and metadata.
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func newTestXLMetaV1() xlMetaV1Object {
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xlMeta := xlMetaV1Object{}
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xlMeta.Version = xlMetaVersion101
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xlMeta.Format = xlMetaFormat
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xlMeta.Minio.Release = "test"
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xlMeta.Erasure = ErasureInfo{
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Algorithm: "klauspost/reedsolomon/vandermonde",
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DataBlocks: 5,
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ParityBlocks: 5,
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BlockSize: 10485760,
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Index: 10,
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Distribution: []int{9, 10, 1, 2, 3, 4, 5, 6, 7, 8},
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}
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xlMeta.Stat = StatInfo{
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Size: int64(20),
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ModTime: UTCNow(),
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}
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// Set meta data.
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xlMeta.Meta = make(map[string]string)
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xlMeta.Meta["testKey1"] = "val1"
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xlMeta.Meta["testKey2"] = "val2"
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return xlMeta
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}
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func (m *xlMetaV1Object) AddTestObjectCheckSum(partNumber int, algorithm BitrotAlgorithm, hash string) {
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checksum, err := hex.DecodeString(hash)
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if err != nil {
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panic(err)
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}
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m.Erasure.Checksums[partNumber-1] = ChecksumInfo{partNumber, algorithm, checksum}
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}
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// AddTestObjectPart - add a new object part in order.
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func (m *xlMetaV1Object) AddTestObjectPart(partNumber int, partSize int64) {
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partInfo := ObjectPartInfo{
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Number: partNumber,
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Size: partSize,
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}
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// Proceed to include new part info.
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m.Parts[partNumber-1] = partInfo
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}
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// Constructs xlMetaV1Object{} for given number of parts and converts it into bytes.
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func getXLMetaBytes(totalParts int) []byte {
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xlSampleMeta := getSampleXLMeta(totalParts)
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xlMetaBytes, err := json.Marshal(xlSampleMeta)
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if err != nil {
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panic(err)
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}
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return xlMetaBytes
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}
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// Returns sample xlMetaV1Object{} for number of parts.
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func getSampleXLMeta(totalParts int) xlMetaV1Object {
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xlMeta := newTestXLMetaV1()
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// Number of checksum info == total parts.
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xlMeta.Erasure.Checksums = make([]ChecksumInfo, totalParts)
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// total number of parts.
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xlMeta.Parts = make([]ObjectPartInfo, totalParts)
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for i := 0; i < totalParts; i++ {
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// hard coding hash and algo value for the checksum, Since we are benchmarking the parsing of xl.meta the magnitude doesn't affect the test,
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// The magnitude doesn't make a difference, only the size does.
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xlMeta.AddTestObjectCheckSum(i+1, BLAKE2b512, "a23f5eff248c4372badd9f3b2455a285cd4ca86c3d9a570b091d3fc5cd7ca6d9484bbea3f8c5d8d4f84daae96874419eda578fd736455334afbac2c924b3915a")
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xlMeta.AddTestObjectPart(i+1, 67108864)
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}
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return xlMeta
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}
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// Compare the unmarshaled XLMetaV1 with the one obtained from jsoniter parsing.
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func compareXLMetaV1(t *testing.T, unMarshalXLMeta, jsoniterXLMeta xlMetaV1Object) {
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// Start comparing the fields of xlMetaV1Object obtained from jsoniter parsing with one parsed using json unmarshaling.
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if unMarshalXLMeta.Version != jsoniterXLMeta.Version {
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t.Errorf("Expected the Version to be \"%s\", but got \"%s\".", unMarshalXLMeta.Version, jsoniterXLMeta.Version)
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}
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if unMarshalXLMeta.Format != jsoniterXLMeta.Format {
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t.Errorf("Expected the format to be \"%s\", but got \"%s\".", unMarshalXLMeta.Format, jsoniterXLMeta.Format)
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}
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if unMarshalXLMeta.Stat.Size != jsoniterXLMeta.Stat.Size {
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t.Errorf("Expected the stat size to be %v, but got %v.", unMarshalXLMeta.Stat.Size, jsoniterXLMeta.Stat.Size)
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}
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if !unMarshalXLMeta.Stat.ModTime.Equal(jsoniterXLMeta.Stat.ModTime) {
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t.Errorf("Expected the modTime to be \"%v\", but got \"%v\".", unMarshalXLMeta.Stat.ModTime, jsoniterXLMeta.Stat.ModTime)
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}
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if unMarshalXLMeta.Erasure.Algorithm != jsoniterXLMeta.Erasure.Algorithm {
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t.Errorf("Expected the erasure algorithm to be \"%v\", but got \"%v\".", unMarshalXLMeta.Erasure.Algorithm, jsoniterXLMeta.Erasure.Algorithm)
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}
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if unMarshalXLMeta.Erasure.DataBlocks != jsoniterXLMeta.Erasure.DataBlocks {
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t.Errorf("Expected the erasure data blocks to be %v, but got %v.", unMarshalXLMeta.Erasure.DataBlocks, jsoniterXLMeta.Erasure.DataBlocks)
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}
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if unMarshalXLMeta.Erasure.ParityBlocks != jsoniterXLMeta.Erasure.ParityBlocks {
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t.Errorf("Expected the erasure parity blocks to be %v, but got %v.", unMarshalXLMeta.Erasure.ParityBlocks, jsoniterXLMeta.Erasure.ParityBlocks)
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}
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if unMarshalXLMeta.Erasure.BlockSize != jsoniterXLMeta.Erasure.BlockSize {
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t.Errorf("Expected the erasure block size to be %v, but got %v.", unMarshalXLMeta.Erasure.BlockSize, jsoniterXLMeta.Erasure.BlockSize)
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}
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if unMarshalXLMeta.Erasure.Index != jsoniterXLMeta.Erasure.Index {
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t.Errorf("Expected the erasure index to be %v, but got %v.", unMarshalXLMeta.Erasure.Index, jsoniterXLMeta.Erasure.Index)
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}
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if len(unMarshalXLMeta.Erasure.Distribution) != len(jsoniterXLMeta.Erasure.Distribution) {
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t.Errorf("Expected the size of Erasure Distribution to be %d, but got %d.", len(unMarshalXLMeta.Erasure.Distribution), len(jsoniterXLMeta.Erasure.Distribution))
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} else {
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for i := 0; i < len(unMarshalXLMeta.Erasure.Distribution); i++ {
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if unMarshalXLMeta.Erasure.Distribution[i] != jsoniterXLMeta.Erasure.Distribution[i] {
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t.Errorf("Expected the Erasure Distribution to be %d, got %d.", unMarshalXLMeta.Erasure.Distribution[i], jsoniterXLMeta.Erasure.Distribution[i])
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}
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}
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}
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if len(unMarshalXLMeta.Erasure.Checksums) != len(jsoniterXLMeta.Erasure.Checksums) {
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t.Errorf("Expected the size of Erasure Checksums to be %d, but got %d.", len(unMarshalXLMeta.Erasure.Checksums), len(jsoniterXLMeta.Erasure.Checksums))
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} else {
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for i := 0; i < len(unMarshalXLMeta.Erasure.Checksums); i++ {
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if unMarshalXLMeta.Erasure.Checksums[i].PartNumber != jsoniterXLMeta.Erasure.Checksums[i].PartNumber {
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t.Errorf("Expected the Erasure Checksum PartNumber to be \"%d\", got \"%d\".", unMarshalXLMeta.Erasure.Checksums[i].PartNumber, jsoniterXLMeta.Erasure.Checksums[i].PartNumber)
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}
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if unMarshalXLMeta.Erasure.Checksums[i].Algorithm != jsoniterXLMeta.Erasure.Checksums[i].Algorithm {
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t.Errorf("Expected the Erasure Checksum Algorithm to be \"%s\", got \"%s\".", unMarshalXLMeta.Erasure.Checksums[i].Algorithm, jsoniterXLMeta.Erasure.Checksums[i].Algorithm)
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}
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if !bytes.Equal(unMarshalXLMeta.Erasure.Checksums[i].Hash, jsoniterXLMeta.Erasure.Checksums[i].Hash) {
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t.Errorf("Expected the Erasure Checksum Hash to be \"%s\", got \"%s\".", unMarshalXLMeta.Erasure.Checksums[i].Hash, jsoniterXLMeta.Erasure.Checksums[i].Hash)
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}
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}
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}
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if unMarshalXLMeta.Minio.Release != jsoniterXLMeta.Minio.Release {
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t.Errorf("Expected the Release string to be \"%s\", but got \"%s\".", unMarshalXLMeta.Minio.Release, jsoniterXLMeta.Minio.Release)
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}
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if len(unMarshalXLMeta.Parts) != len(jsoniterXLMeta.Parts) {
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t.Errorf("Expected info of %d parts to be present, but got %d instead.", len(unMarshalXLMeta.Parts), len(jsoniterXLMeta.Parts))
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} else {
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for i := 0; i < len(unMarshalXLMeta.Parts); i++ {
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if unMarshalXLMeta.Parts[i].Number != jsoniterXLMeta.Parts[i].Number {
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t.Errorf("Expected the number of part %d to be \"%d\", got \"%d\".", i+1, unMarshalXLMeta.Parts[i].Number, jsoniterXLMeta.Parts[i].Number)
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}
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if unMarshalXLMeta.Parts[i].Size != jsoniterXLMeta.Parts[i].Size {
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t.Errorf("Expected the size of part %d to be %v, got %v.", i+1, unMarshalXLMeta.Parts[i].Size, jsoniterXLMeta.Parts[i].Size)
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}
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}
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}
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for key, val := range unMarshalXLMeta.Meta {
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jsoniterVal, exists := jsoniterXLMeta.Meta[key]
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if !exists {
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t.Errorf("No meta data entry for Key \"%s\" exists.", key)
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}
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if val != jsoniterVal {
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t.Errorf("Expected the value for Meta data key \"%s\" to be \"%s\", but got \"%s\".", key, val, jsoniterVal)
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}
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}
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}
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// Tests the correctness of constructing XLMetaV1 using jsoniter lib.
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// The result will be compared with the result obtained from json.unMarshal of the byte data.
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func TestGetXLMetaV1Jsoniter1(t *testing.T) {
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xlMetaJSON := getXLMetaBytes(1)
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var unMarshalXLMeta xlMetaV1Object
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if err := json.Unmarshal(xlMetaJSON, &unMarshalXLMeta); err != nil {
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t.Errorf("Unmarshalling failed: %v", err)
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}
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var jsoniterXLMeta xlMetaV1Object
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var json = jsoniter.ConfigCompatibleWithStandardLibrary
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if err := json.Unmarshal(xlMetaJSON, &jsoniterXLMeta); err != nil {
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t.Errorf("jsoniter parsing of XLMeta failed: %v", err)
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}
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compareXLMetaV1(t, unMarshalXLMeta, jsoniterXLMeta)
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}
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// Tests the correctness of constructing XLMetaV1 using jsoniter lib for XLMetaV1 of size 10 parts.
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// The result will be compared with the result obtained from json.unMarshal of the byte data.
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func TestGetXLMetaV1Jsoniter10(t *testing.T) {
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xlMetaJSON := getXLMetaBytes(10)
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var unMarshalXLMeta xlMetaV1Object
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if err := json.Unmarshal(xlMetaJSON, &unMarshalXLMeta); err != nil {
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t.Errorf("Unmarshalling failed: %v", err)
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}
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var jsoniterXLMeta xlMetaV1Object
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var json = jsoniter.ConfigCompatibleWithStandardLibrary
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if err := json.Unmarshal(xlMetaJSON, &jsoniterXLMeta); err != nil {
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t.Errorf("jsoniter parsing of XLMeta failed: %v", err)
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}
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compareXLMetaV1(t, unMarshalXLMeta, jsoniterXLMeta)
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}
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// Test the predicted part size from the part index
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func TestGetPartSizeFromIdx(t *testing.T) {
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// Create test cases
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testCases := []struct {
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totalSize int64
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partSize int64
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partIndex int
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expectedSize int64
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}{
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// Total size is zero
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{0, 10, 1, 0},
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// part size 2MiB, total size 4MiB
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{4 * humanize.MiByte, 2 * humanize.MiByte, 1, 2 * humanize.MiByte},
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{4 * humanize.MiByte, 2 * humanize.MiByte, 2, 2 * humanize.MiByte},
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{4 * humanize.MiByte, 2 * humanize.MiByte, 3, 0},
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// part size 2MiB, total size 5MiB
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{5 * humanize.MiByte, 2 * humanize.MiByte, 1, 2 * humanize.MiByte},
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{5 * humanize.MiByte, 2 * humanize.MiByte, 2, 2 * humanize.MiByte},
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{5 * humanize.MiByte, 2 * humanize.MiByte, 3, 1 * humanize.MiByte},
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{5 * humanize.MiByte, 2 * humanize.MiByte, 4, 0},
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}
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for i, testCase := range testCases {
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s, err := calculatePartSizeFromIdx(GlobalContext, testCase.totalSize, testCase.partSize, testCase.partIndex)
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if err != nil {
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t.Errorf("Test %d: Expected to pass but failed. %s", i+1, err)
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}
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if err == nil && s != testCase.expectedSize {
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t.Errorf("Test %d: The calculated part size is incorrect: expected = %d, found = %d\n", i+1, testCase.expectedSize, s)
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}
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}
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testCasesFailure := []struct {
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totalSize int64
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partSize int64
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partIndex int
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err error
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}{
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// partSize is 0, returns error.
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{10, 0, 1, errPartSizeZero},
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// partIndex is 0, returns error.
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{10, 1, 0, errPartSizeIndex},
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// Total size is -1, returns error.
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{-2, 10, 1, errInvalidArgument},
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}
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for i, testCaseFailure := range testCasesFailure {
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_, err := calculatePartSizeFromIdx(GlobalContext, testCaseFailure.totalSize, testCaseFailure.partSize, testCaseFailure.partIndex)
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if err == nil {
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t.Errorf("Test %d: Expected to failed but passed. %s", i+1, err)
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}
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if err != nil && err != testCaseFailure.err {
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t.Errorf("Test %d: Expected err %s, but got %s", i+1, testCaseFailure.err, err)
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}
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}
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}
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