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minio/cmd/xl-v1_test.go

203 lines
5.4 KiB

/*
* Minio Cloud Storage, (C) 2016 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cmd
import (
"os"
"path/filepath"
"reflect"
"testing"
"github.com/minio/minio/pkg/disk"
)
// TestStorageInfo - tests storage info.
func TestStorageInfo(t *testing.T) {
objLayer, fsDirs, err := prepareXL()
if err != nil {
t.Fatalf("Unable to initialize 'XL' object layer.")
}
// Remove all dirs.
for _, dir := range fsDirs {
defer removeAll(dir)
}
// Get storage info first attempt.
disks16Info := objLayer.StorageInfo()
// This test assumes homogenity between all disks,
// i.e if we loose one disk the effective storage
// usage values is assumed to decrease. If we have
// heterogenous environment this is not true all the time.
if disks16Info.Free <= 0 {
t.Fatalf("Diskinfo total free values should be greater 0")
}
if disks16Info.Total <= 0 {
t.Fatalf("Diskinfo total values should be greater 0")
}
endpoints, err := parseStorageEndpoints(fsDirs)
if err != nil {
t.Fatalf("Unexpected error %s", err)
}
ignoredEndpoints, err := parseStorageEndpoints(fsDirs[:4])
if err != nil {
t.Fatalf("Unexpected error %s", err)
}
storageDisks, err := initStorageDisks(endpoints, ignoredEndpoints)
if err != nil {
t.Fatal("Unexpected error: ", err)
}
objLayer, err = newXLObjects(storageDisks)
if err != nil {
t.Fatalf("Unable to initialize 'XL' object layer with ignored disks %s. error %s", fsDirs[:4], err)
}
// Get storage info first attempt.
disks16Info = objLayer.StorageInfo()
// This test assumes homogenity between all disks,
// i.e if we loose one disk the effective storage
// usage values is assumed to decrease. If we have
// heterogenous environment this is not true all the time.
if disks16Info.Free <= 0 {
t.Fatalf("Diskinfo total free values should be greater 0")
}
if disks16Info.Total <= 0 {
t.Fatalf("Diskinfo total values should be greater 0")
}
}
// Sort valid disks info.
func TestSortingValidDisks(t *testing.T) {
testCases := []struct {
disksInfo []disk.Info
validDisksInfo []disk.Info
}{
// One of the disks is offline.
{
disksInfo: []disk.Info{
{Total: 150, Free: 10},
{Total: 0, Free: 0},
{Total: 200, Free: 10},
{Total: 100, Free: 10},
},
validDisksInfo: []disk.Info{
{Total: 100, Free: 10},
{Total: 150, Free: 10},
{Total: 200, Free: 10},
},
},
// All disks are online.
{
disksInfo: []disk.Info{
{Total: 150, Free: 10},
{Total: 200, Free: 10},
{Total: 100, Free: 10},
{Total: 115, Free: 10},
},
validDisksInfo: []disk.Info{
{Total: 100, Free: 10},
{Total: 115, Free: 10},
{Total: 150, Free: 10},
{Total: 200, Free: 10},
},
},
}
for i, testCase := range testCases {
validDisksInfo := sortValidDisksInfo(testCase.disksInfo)
if !reflect.DeepEqual(validDisksInfo, testCase.validDisksInfo) {
t.Errorf("Test %d: Expected %#v, Got %#v", i+1, testCase.validDisksInfo, validDisksInfo)
}
}
}
// TestNewXL - tests initialization of all input disks
// and constructs a valid `XL` object
func TestNewXL(t *testing.T) {
var nDisks = 16 // Maximum disks.
var erasureDisks []string
for i := 0; i < nDisks; i++ {
// Do not attempt to create this path, the test validates
// so that newFSObjects initializes non existing paths
// and successfully returns initialized object layer.
disk := filepath.Join(os.TempDir(), "minio-"+nextSuffix())
erasureDisks = append(erasureDisks, disk)
defer removeAll(disk)
}
// No disks input.
_, err := newXLObjects(nil)
if err != errInvalidArgument {
t.Fatalf("Unable to initialize erasure, %s", err)
}
endpoints, err := parseStorageEndpoints(erasureDisks)
if err != nil {
t.Fatalf("Unable to initialize erasure, %s", err)
}
storageDisks, err := initStorageDisks(endpoints, nil)
if err != nil {
t.Fatal("Unexpected error: ", err)
}
err = waitForFormatDisks(true, endpoints[0], nil)
if err != errInvalidArgument {
t.Fatalf("Expecting error, got %s", err)
}
err = waitForFormatDisks(true, nil, storageDisks)
if err != errInvalidArgument {
t.Fatalf("Expecting error, got %s", err)
}
// Initializes all erasure disks
err = waitForFormatDisks(true, endpoints[0], storageDisks)
if err != nil {
t.Fatalf("Unable to format disks for erasure, %s", err)
}
_, err = newXLObjects(storageDisks)
if err != nil {
t.Fatalf("Unable to initialize erasure, %s", err)
}
endpoints, err = parseStorageEndpoints(erasureDisks)
if err != nil {
t.Fatalf("Unable to initialize erasure, %s", err)
}
ignoredEndpoints, err := parseStorageEndpoints(erasureDisks[:2])
if err != nil {
t.Fatalf("Unable to initialize erasure, %s", err)
}
storageDisks, err = initStorageDisks(endpoints, ignoredEndpoints)
if err != nil {
t.Fatal("Unexpected error: ", err)
}
// Initializes all erasure disks, ignoring first two.
_, err = newXLObjects(storageDisks)
if err != nil {
t.Fatalf("Unable to initialize erasure, %s", err)
}
}