2019-10-07 07:50:24 +02:00
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/*
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* MinIO Cloud Storage, (C) 2017-2019 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 storageclass
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import (
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"errors"
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"reflect"
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"testing"
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)
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func TestParseStorageClass(t *testing.T) {
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tests := []struct {
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storageClassEnv string
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wantSc StorageClass
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expectedError error
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}{
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{"EC:3", StorageClass{
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Parity: 3},
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nil},
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{"EC:4", StorageClass{
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Parity: 4},
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nil},
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{"AB:4", StorageClass{
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Parity: 4},
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errors.New("Unsupported scheme AB. Supported scheme is EC")},
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{"EC:4:5", StorageClass{
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Parity: 4},
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errors.New("Too many sections in EC:4:5")},
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{"EC:A", StorageClass{
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Parity: 4},
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errors.New(`strconv.Atoi: parsing "A": invalid syntax`)},
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{"AB", StorageClass{
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Parity: 4},
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errors.New("Too few sections in AB")},
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}
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for i, tt := range tests {
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gotSc, err := parseStorageClass(tt.storageClassEnv)
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if err != nil && tt.expectedError == nil {
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t.Errorf("Test %d, Expected %s, got %s", i+1, tt.expectedError, err)
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return
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}
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if err == nil && tt.expectedError != nil {
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t.Errorf("Test %d, Expected %s, got %s", i+1, tt.expectedError, err)
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return
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}
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if tt.expectedError == nil && !reflect.DeepEqual(gotSc, tt.wantSc) {
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t.Errorf("Test %d, Expected %v, got %v", i+1, tt.wantSc, gotSc)
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return
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}
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if tt.expectedError != nil && err.Error() != tt.expectedError.Error() {
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t.Errorf("Test %d, Expected `%v`, got `%v`", i+1, tt.expectedError, err)
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}
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}
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}
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func TestValidateParity(t *testing.T) {
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tests := []struct {
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2020-08-27 04:29:35 +02:00
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rrsParity int
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ssParity int
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success bool
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setDriveCount int
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2019-10-07 07:50:24 +02:00
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}{
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{2, 4, true, 16},
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{3, 3, true, 16},
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{0, 0, true, 16},
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{1, 4, false, 16},
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{7, 6, false, 16},
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{9, 0, false, 16},
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{9, 9, false, 16},
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{2, 9, false, 16},
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{9, 2, false, 16},
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}
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for i, tt := range tests {
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2020-08-27 04:29:35 +02:00
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err := validateParity(tt.ssParity, tt.rrsParity, tt.setDriveCount)
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2019-10-07 07:50:24 +02:00
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if err != nil && tt.success {
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t.Errorf("Test %d, Expected success, got %s", i+1, err)
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}
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if err == nil && !tt.success {
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t.Errorf("Test %d, Expected failure, got success", i+1)
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}
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}
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}
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func TestParityCount(t *testing.T) {
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tests := []struct {
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sc string
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disksCount int
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expectedData int
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expectedParity int
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}{
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{RRS, 16, 14, 2},
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{STANDARD, 16, 8, 8},
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{"", 16, 8, 8},
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{RRS, 16, 9, 7},
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{STANDARD, 16, 10, 6},
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{"", 16, 9, 7},
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}
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for i, tt := range tests {
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scfg := Config{
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Standard: StorageClass{
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Parity: 8,
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},
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RRS: StorageClass{
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Parity: 0,
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},
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}
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// Set env var for test case 4
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if i+1 == 4 {
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scfg.RRS.Parity = 7
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}
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// Set env var for test case 5
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if i+1 == 5 {
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scfg.Standard.Parity = 6
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}
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// Set env var for test case 6
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if i+1 == 6 {
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scfg.Standard.Parity = 7
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}
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parity := scfg.GetParityForSC(tt.sc)
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if (tt.disksCount - parity) != tt.expectedData {
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t.Errorf("Test %d, Expected data disks %d, got %d", i+1, tt.expectedData, tt.disksCount-parity)
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continue
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}
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if parity != tt.expectedParity {
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t.Errorf("Test %d, Expected parity disks %d, got %d", i+1, tt.expectedParity, parity)
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}
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}
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}
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// Test IsValid method with valid and invalid inputs
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func TestIsValidStorageClassKind(t *testing.T) {
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tests := []struct {
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sc string
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want bool
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}{
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{"STANDARD", true},
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{"REDUCED_REDUNDANCY", true},
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{"", false},
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{"INVALID", false},
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{"123", false},
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{"MINIO_STORAGE_CLASS_RRS", false},
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{"MINIO_STORAGE_CLASS_STANDARD", false},
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}
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for i, tt := range tests {
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if got := IsValid(tt.sc); got != tt.want {
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t.Errorf("Test %d, Expected Storage Class to be %t, got %t", i+1, tt.want, got)
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}
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}
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}
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