mirror of
https://github.com/minio/minio.git
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445 lines
17 KiB
Go
445 lines
17 KiB
Go
/*
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* MinIO Cloud Storage, (C) 2015, 2016, 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 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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"reflect"
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"testing"
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humanize "github.com/dustin/go-humanize"
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)
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// Tests caclculating disk count.
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func TestDiskCount(t *testing.T) {
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testCases := []struct {
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disks []StorageAPI
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diskCount int
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}{
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// Test case - 1
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{
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disks: []StorageAPI{&posix{}, &posix{}, &posix{}, &posix{}},
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diskCount: 4,
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},
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// Test case - 2
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{
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disks: []StorageAPI{nil, &posix{}, &posix{}, &posix{}},
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diskCount: 3,
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},
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}
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for i, testCase := range testCases {
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cdiskCount := diskCount(testCase.disks)
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if cdiskCount != testCase.diskCount {
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t.Errorf("Test %d: Expected %d, got %d", i+1, testCase.diskCount, cdiskCount)
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}
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}
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}
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// Test for reduceErrs, reduceErr reduces collection
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// of errors into a single maximal error with in the list.
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func TestReduceErrs(t *testing.T) {
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// List all of all test cases to validate various cases of reduce errors.
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testCases := []struct {
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errs []error
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ignoredErrs []error
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err error
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}{
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// Validate if have reduced properly.
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{[]error{
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errDiskNotFound,
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errDiskNotFound,
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errDiskFull,
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}, []error{}, errXLReadQuorum},
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// Validate if have no consensus.
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{[]error{
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errDiskFull,
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errDiskNotFound,
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nil, nil,
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}, []error{}, errXLReadQuorum},
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// Validate if have consensus and errors ignored.
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{[]error{
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errVolumeNotFound,
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errVolumeNotFound,
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errVolumeNotFound,
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errVolumeNotFound,
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errVolumeNotFound,
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errDiskNotFound,
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errDiskNotFound,
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}, []error{errDiskNotFound}, errVolumeNotFound},
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{[]error{}, []error{}, errXLReadQuorum},
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{[]error{errFileNotFound, errFileNotFound, errFileNotFound,
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errFileNotFound, errFileNotFound, nil, nil, nil, nil, nil},
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nil, nil},
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}
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// Validates list of all the testcases for returning valid errors.
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for i, testCase := range testCases {
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gotErr := reduceReadQuorumErrs(GlobalContext, testCase.errs, testCase.ignoredErrs, 5)
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if gotErr != testCase.err {
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t.Errorf("Test %d : expected %s, got %s", i+1, testCase.err, gotErr)
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}
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gotNewErr := reduceWriteQuorumErrs(GlobalContext, testCase.errs, testCase.ignoredErrs, 6)
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if gotNewErr != errXLWriteQuorum {
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t.Errorf("Test %d : expected %s, got %s", i+1, errXLWriteQuorum, gotErr)
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}
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}
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}
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// TestHashOrder - test order of ints in array
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func TestHashOrder(t *testing.T) {
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testCases := []struct {
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objectName string
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hashedOrder []int
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}{
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// cases which should pass the test.
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// passing in valid object name.
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{"object", []int{14, 15, 16, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}},
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{"The Shining Script <v1>.pdf", []int{16, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}},
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{"Cost Benefit Analysis (2009-2010).pptx", []int{15, 16, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}},
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{"117Gn8rfHL2ACARPAhaFd0AGzic9pUbIA/5OCn5A", []int{3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 1, 2}},
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{"SHØRT", []int{11, 12, 13, 14, 15, 16, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10}},
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{"There are far too many object names, and far too few bucket names!", []int{15, 16, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}},
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{"a/b/c/", []int{3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 1, 2}},
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{"/a/b/c", []int{6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 1, 2, 3, 4, 5}},
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{string([]byte{0xff, 0xfe, 0xfd}), []int{15, 16, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}},
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}
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// Tests hashing order to be consistent.
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for i, testCase := range testCases {
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hashedOrder := hashOrder(testCase.objectName, 16)
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if !reflect.DeepEqual(testCase.hashedOrder, hashedOrder) {
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t.Errorf("Test case %d: Expected \"%v\" but failed \"%v\"", i+1, testCase.hashedOrder, hashedOrder)
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}
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}
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// Tests hashing order to fail for when order is '-1'.
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if hashedOrder := hashOrder("This will fail", -1); hashedOrder != nil {
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t.Errorf("Test: Expect \"nil\" but failed \"%#v\"", hashedOrder)
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}
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if hashedOrder := hashOrder("This will fail", 0); hashedOrder != nil {
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t.Errorf("Test: Expect \"nil\" but failed \"%#v\"", hashedOrder)
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}
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}
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// newTestXLMetaV1 - initializes new xlMetaV1, adds version, allocates a fresh erasure info and metadata.
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func newTestXLMetaV1() xlMetaV1 {
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xlMeta := xlMetaV1{}
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xlMeta.Version = xlMetaVersion
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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 *xlMetaV1) 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 *xlMetaV1) 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 xlMetaV1{} 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 xlMetaV1{} for number of parts.
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func getSampleXLMeta(totalParts int) xlMetaV1 {
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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.json 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 xlMetaV1) {
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// Start comparing the fields of xlMetaV1 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 xlMetaV1
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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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jsoniterXLMeta, err := xlMetaV1UnmarshalJSON(GlobalContext, xlMetaJSON)
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if 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 xlMetaV1
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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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jsoniterXLMeta, err := xlMetaV1UnmarshalJSON(GlobalContext, xlMetaJSON)
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if 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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func TestShuffleDisks(t *testing.T) {
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nDisks := 16
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disks, err := getRandomDisks(nDisks)
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if err != nil {
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t.Fatal(err)
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}
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objLayer, _, err := initObjectLayer(mustGetZoneEndpoints(disks...))
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if err != nil {
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removeRoots(disks)
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t.Fatal(err)
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}
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defer removeRoots(disks)
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z := objLayer.(*xlZones)
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testShuffleDisks(t, z)
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}
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// Test shuffleDisks which returns shuffled slice of disks for their actual distribution.
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func testShuffleDisks(t *testing.T, z *xlZones) {
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disks := z.zones[0].GetDisks(0)()
|
|
distribution := []int{16, 14, 12, 10, 8, 6, 4, 2, 1, 3, 5, 7, 9, 11, 13, 15}
|
|
shuffledDisks := shuffleDisks(disks, distribution)
|
|
// From the "distribution" above you can notice that:
|
|
// 1st data block is in the 9th disk (i.e distribution index 8)
|
|
// 2nd data block is in the 8th disk (i.e distribution index 7) and so on.
|
|
if shuffledDisks[0] != disks[8] ||
|
|
shuffledDisks[1] != disks[7] ||
|
|
shuffledDisks[2] != disks[9] ||
|
|
shuffledDisks[3] != disks[6] ||
|
|
shuffledDisks[4] != disks[10] ||
|
|
shuffledDisks[5] != disks[5] ||
|
|
shuffledDisks[6] != disks[11] ||
|
|
shuffledDisks[7] != disks[4] ||
|
|
shuffledDisks[8] != disks[12] ||
|
|
shuffledDisks[9] != disks[3] ||
|
|
shuffledDisks[10] != disks[13] ||
|
|
shuffledDisks[11] != disks[2] ||
|
|
shuffledDisks[12] != disks[14] ||
|
|
shuffledDisks[13] != disks[1] ||
|
|
shuffledDisks[14] != disks[15] ||
|
|
shuffledDisks[15] != disks[0] {
|
|
t.Errorf("shuffleDisks returned incorrect order.")
|
|
}
|
|
}
|
|
|
|
// TestEvalDisks tests the behavior of evalDisks
|
|
func TestEvalDisks(t *testing.T) {
|
|
nDisks := 16
|
|
disks, err := getRandomDisks(nDisks)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
objLayer, _, err := initObjectLayer(mustGetZoneEndpoints(disks...))
|
|
if err != nil {
|
|
removeRoots(disks)
|
|
t.Fatal(err)
|
|
}
|
|
defer removeRoots(disks)
|
|
z := objLayer.(*xlZones)
|
|
testShuffleDisks(t, z)
|
|
}
|