minio/cmd/storage-rpc-client_test.go
Harshavardhana 62f8343879 Add constants for commonly used values. (#3588)
This is a consolidation effort, avoiding usage
of naked strings in codebase. Whenever possible
use constants which can be repurposed elsewhere.

This also fixes `goconst ./...` reported issues.
2017-01-18 12:24:34 -08:00

387 lines
9.9 KiB
Go

/*
* Minio Cloud Storage, (C) 2016, 2017 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 (
"bytes"
"errors"
"fmt"
"io"
"net"
"net/rpc"
"net/url"
"runtime"
"testing"
)
// Tests storage error transformation.
func TestStorageErr(t *testing.T) {
unknownErr := errors.New("Unknown error")
testCases := []struct {
expectedErr error
err error
}{
{
expectedErr: nil,
err: nil,
},
{
expectedErr: io.EOF,
err: fmt.Errorf("%s", io.EOF.Error()),
},
{
expectedErr: io.ErrUnexpectedEOF,
err: fmt.Errorf("%s", io.ErrUnexpectedEOF.Error()),
},
{
expectedErr: errDiskNotFound,
err: &net.OpError{},
},
{
expectedErr: errDiskNotFound,
err: rpc.ErrShutdown,
},
{
expectedErr: errUnexpected,
err: fmt.Errorf("%s", errUnexpected.Error()),
},
{
expectedErr: errDiskFull,
err: fmt.Errorf("%s", errDiskFull.Error()),
},
{
expectedErr: errVolumeNotFound,
err: fmt.Errorf("%s", errVolumeNotFound.Error()),
},
{
expectedErr: errVolumeExists,
err: fmt.Errorf("%s", errVolumeExists.Error()),
},
{
expectedErr: errFileNotFound,
err: fmt.Errorf("%s", errFileNotFound.Error()),
},
{
expectedErr: errFileAccessDenied,
err: fmt.Errorf("%s", errFileAccessDenied.Error()),
},
{
expectedErr: errIsNotRegular,
err: fmt.Errorf("%s", errIsNotRegular.Error()),
},
{
expectedErr: errVolumeNotEmpty,
err: fmt.Errorf("%s", errVolumeNotEmpty.Error()),
},
{
expectedErr: errVolumeAccessDenied,
err: fmt.Errorf("%s", errVolumeAccessDenied.Error()),
},
{
expectedErr: errCorruptedFormat,
err: fmt.Errorf("%s", errCorruptedFormat.Error()),
},
{
expectedErr: errUnformattedDisk,
err: fmt.Errorf("%s", errUnformattedDisk.Error()),
},
{
expectedErr: errFileNameTooLong,
err: fmt.Errorf("%s", errFileNameTooLong.Error()),
},
{
expectedErr: errInvalidAccessKeyID,
err: fmt.Errorf("%s", errInvalidAccessKeyID.Error()),
},
{
expectedErr: errAuthentication,
err: fmt.Errorf("%s", errAuthentication.Error()),
},
{
expectedErr: errServerVersionMismatch,
err: fmt.Errorf("%s", errServerVersionMismatch.Error()),
},
{
expectedErr: errServerTimeMismatch,
err: fmt.Errorf("%s", errServerTimeMismatch.Error()),
},
{
expectedErr: unknownErr,
err: unknownErr,
},
}
for i, testCase := range testCases {
resultErr := toStorageErr(testCase.err)
if testCase.expectedErr != resultErr {
t.Errorf("Test %d: Expected %s, got %s", i+1, testCase.expectedErr, resultErr)
}
}
}
// API suite container common to both FS and XL.
type TestRPCStorageSuite struct {
serverType string
testServer TestServer
remoteDisks []StorageAPI
}
// Setting up the test suite.
// Starting the Test server with temporary FS backend.
func (s *TestRPCStorageSuite) SetUpSuite(c *testing.T) {
s.testServer = StartTestStorageRPCServer(c, s.serverType, 1)
listenAddress := s.testServer.Server.Listener.Addr().String()
for _, ep := range s.testServer.Disks {
ep.Host = listenAddress
storageDisk, err := newStorageRPC(ep)
if err != nil {
c.Fatal("Unable to initialize RPC client", err)
}
s.remoteDisks = append(s.remoteDisks, storageDisk)
}
_, err := newStorageRPC(nil)
if err != errInvalidArgument {
c.Fatalf("Unexpected error %s, expecting %s", err, errInvalidArgument)
}
u, err := url.Parse("http://abcd:abcd123@localhost/mnt/disk")
if err != nil {
c.Fatal("Unexpected error", err)
}
_, err = newStorageRPC(u)
if err != nil {
c.Fatal("Unexpected error", err)
}
}
// No longer used with gocheck, but used in explicit teardown code in
// each test function. // Called implicitly by "gopkg.in/check.v1"
// after all tests are run.
func (s *TestRPCStorageSuite) TearDownSuite(c *testing.T) {
s.testServer.Stop()
}
func TestRPCStorageClient(t *testing.T) {
// Setup code
s := &TestRPCStorageSuite{serverType: "XL"}
s.SetUpSuite(t)
// Run the test.
s.testRPCStorageClient(t)
// Teardown code
s.TearDownSuite(t)
}
func (s *TestRPCStorageSuite) testRPCStorageClient(t *testing.T) {
// TODO - Fix below tests to run on windows.
if runtime.GOOS == globalWindowsOSName {
return
}
s.testRPCStorageDisksInfo(t)
s.testRPCStorageVolOps(t)
s.testRPCStorageFileOps(t)
s.testRPCStorageListDir(t)
}
// Test storage disks info.
func (s *TestRPCStorageSuite) testRPCStorageDisksInfo(t *testing.T) {
for _, storageDisk := range s.remoteDisks {
diskInfo, err := storageDisk.DiskInfo()
if err != nil {
t.Error("Unable to initiate DiskInfo", err)
}
if diskInfo.Total == 0 {
t.Error("Invalid diskInfo total")
}
if storageDisk.String() == "" {
t.Error("String representation of storageAPI should not be empty")
}
}
}
// Test storage vol operations.
func (s *TestRPCStorageSuite) testRPCStorageVolOps(t *testing.T) {
for _, storageDisk := range s.remoteDisks {
numVols := 0
err := storageDisk.MakeVol("myvol")
if err != nil {
t.Error("Unable to initiate MakeVol", err)
}
numVols++
volInfo, err := storageDisk.StatVol("myvol")
if err != nil {
t.Error("Unable to initiate StatVol", err)
}
if volInfo.Name != "myvol" {
t.Errorf("Expected `myvol` found %s instead", volInfo.Name)
}
if volInfo.Created.IsZero() {
t.Error("Expected created time to be non zero")
}
for i := 0; i < 10; i++ {
err = storageDisk.MakeVol(fmt.Sprintf("myvol-%d", i))
if err != nil {
t.Error("Unable to initiate MakeVol", err)
}
numVols++
}
vols, err := storageDisk.ListVols()
if err != nil {
t.Error("Unable to initiate ListVol")
}
if len(vols) != numVols {
t.Errorf("Expected %d volumes but found only %d", numVols, len(vols))
}
for i := 0; i < 10; i++ {
err = storageDisk.DeleteVol(fmt.Sprintf("myvol-%d", i))
if err != nil {
t.Error("Unable to initiate DeleteVol", err)
}
}
err = storageDisk.DeleteVol("myvol")
if err != nil {
t.Error("Unable to initiate DeleteVol", err)
}
vols, err = storageDisk.ListVols()
if err != nil {
t.Error("Unable to initiate ListVol")
}
if len(vols) > 0 {
t.Errorf("Expected no volumes but found %d", len(vols))
}
}
}
// Tests all file operations.
func (s *TestRPCStorageSuite) testRPCStorageFileOps(t *testing.T) {
for _, storageDisk := range s.remoteDisks {
err := storageDisk.MakeVol("myvol")
if err != nil {
t.Error("Unable to initiate MakeVol", err)
}
err = storageDisk.PrepareFile("myvol", "file1", int64(len([]byte("Hello, world"))))
if err != nil {
t.Error("Unable to initiate AppendFile", err)
}
err = storageDisk.AppendFile("myvol", "file1", []byte("Hello, world"))
if err != nil {
t.Error("Unable to initiate AppendFile", err)
}
fi, err := storageDisk.StatFile("myvol", "file1")
if err != nil {
t.Error("Unable to initiate StatFile", err)
}
if fi.Name != "file1" {
t.Errorf("Expected `file1` but got %s", fi.Name)
}
if fi.Volume != "myvol" {
t.Errorf("Expected `myvol` but got %s", fi.Volume)
}
if fi.Size != 12 {
t.Errorf("Expected 12 but got %d", fi.Size)
}
if !fi.Mode.IsRegular() {
t.Error("Expected file to be regular found", fi.Mode)
}
if fi.ModTime.IsZero() {
t.Error("Expected created time to be non zero")
}
buf, err := storageDisk.ReadAll("myvol", "file1")
if err != nil {
t.Error("Unable to initiate ReadAll", err)
}
if !bytes.Equal(buf, []byte("Hello, world")) {
t.Errorf("Expected `Hello, world`, got %s", string(buf))
}
buf1 := make([]byte, 5)
n, err := storageDisk.ReadFile("myvol", "file1", 4, buf1)
if err != nil {
t.Error("Unable to initiate ReadFile", err)
}
if n != 5 {
t.Errorf("Expected `5`, got %d", n)
}
if !bytes.Equal(buf[4:9], buf1) {
t.Errorf("Expected %s, got %s", string(buf[4:9]), string(buf1))
}
err = storageDisk.RenameFile("myvol", "file1", "myvol", "file2")
if err != nil {
t.Error("Unable to initiate RenameFile", err)
}
err = storageDisk.DeleteFile("myvol", "file2")
if err != nil {
t.Error("Unable to initiate DeleteFile", err)
}
err = storageDisk.DeleteVol("myvol")
if err != nil {
t.Error("Unable to initiate DeleteVol", err)
}
}
}
// Tests for ListDirHandler.
func (s *TestRPCStorageSuite) testRPCStorageListDir(t *testing.T) {
for _, storageDisk := range s.remoteDisks {
err := storageDisk.MakeVol("myvol")
if err != nil {
t.Error("Unable to initiate MakeVol", err)
}
dirCount := 10
for i := 0; i < dirCount; i++ {
err = storageDisk.MakeVol(fmt.Sprintf("myvol/mydir-%d", i))
if err != nil {
t.Error("Unable to initiate MakeVol", err)
}
}
dirs, err := storageDisk.ListDir("myvol", "")
if err != nil {
t.Error(err)
}
if len(dirs) != dirCount {
t.Errorf("Expected %d directories but found only %d", dirCount, len(dirs))
}
for i := 0; i < dirCount; i++ {
err = storageDisk.DeleteVol(fmt.Sprintf("myvol/mydir-%d", i))
if err != nil {
t.Error("Unable to initiate DeleteVol", err)
}
}
dirs, err = storageDisk.ListDir("myvol", "")
if err != nil {
t.Error(err)
}
if len(dirs) != 0 {
t.Errorf("Expected no directories but found %d", dirCount)
}
err = storageDisk.DeleteVol("myvol")
if err != nil {
t.Error("Unable to initiate DeleteVol", err)
}
vols, err := storageDisk.ListVols()
if err != nil {
t.Error(err)
}
if len(vols) != 0 {
t.Errorf("Expected no volumes but found %d", dirCount)
}
}
}