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minio/posix_test.go

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/*
* 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 main
import (
"bytes"
"errors"
"io"
"io/ioutil"
"os"
slashpath "path"
"runtime"
"syscall"
"testing"
)
// creates a temp dir and sets up posix layer.
// returns posix layer, temp dir path to be used for the purpose of tests.
func newPosixTestSetup() (StorageAPI, string, error) {
diskPath, err := ioutil.TempDir(os.TempDir(), "minio-")
if err != nil {
return nil, "", err
}
posixStorage, err := newPosix(diskPath)
if err != nil {
return nil, "", err
}
return posixStorage, diskPath, nil
}
// Tests posix.getDiskInfo()
func TestGetDiskInfo(t *testing.T) {
path, err := ioutil.TempDir(os.TempDir(), "minio-")
if err != nil {
t.Fatalf("Unable to create a temporary directory, %s", err)
}
defer removeAll(path)
testCases := []struct {
diskPath string
expectedErr error
}{
{path, nil},
{"/nonexistent-dir", errDiskNotFound},
}
// Check test cases.
for _, testCase := range testCases {
if _, err := getDiskInfo(testCase.diskPath); err != testCase.expectedErr {
t.Fatalf("expected: %s, got: %s", testCase.expectedErr, err)
}
}
}
// Tests the functionality implemented by ReadAll storage API.
func TestReadAll(t *testing.T) {
// create posix test setup
posix, path, err := newPosixTestSetup()
if err != nil {
t.Fatalf("Unable to create posix test setup, %s", err)
}
defer removeAll(path)
// Create files for the test cases.
if err = posix.MakeVol("exists"); err != nil {
t.Fatalf("Unable to create a volume \"exists\", %s", err)
}
if err = posix.AppendFile("exists", "as-directory/as-file", []byte("Hello, World")); err != nil {
t.Fatalf("Unable to create a file \"as-directory/as-file\", %s", err)
}
if err = posix.AppendFile("exists", "as-file", []byte("Hello, World")); err != nil {
t.Fatalf("Unable to create a file \"as-file\", %s", err)
}
if err = posix.AppendFile("exists", "as-file-parent", []byte("Hello, World")); err != nil {
t.Fatalf("Unable to create a file \"as-file-parent\", %s", err)
}
// Testcases to validate different conditions for ReadAll API.
testCases := []struct {
volume string
path string
err error
}{
// Validate volume does not exist.
{
"i-dont-exist",
"",
errVolumeNotFound,
},
// Validate bad condition file does not exist.
{
"exists",
"as-file-not-found",
errFileNotFound,
},
// Validate bad condition file exists as prefix/directory and
// we are attempting to read it.
{
"exists",
"as-directory",
errFileNotFound,
},
{
"exists",
"as-file-parent/as-file",
errFileNotFound,
},
// Validate the good condition file exists and we are able to read it.
{
"exists",
"as-file",
nil,
},
// Add more cases here.
}
// Run through all the test cases and validate for ReadAll.
for i, testCase := range testCases {
_, err = posix.ReadAll(testCase.volume, testCase.path)
if err != testCase.err {
t.Errorf("Test %d expected err %s, got err %s", i+1, testCase.err, err)
}
}
}
// TestNewPosix all the cases handled in posix storage layer initialization.
func TestNewPosix(t *testing.T) {
// Temporary dir name.
tmpDirName := os.TempDir() + "/" + "minio-" + nextSuffix()
// Temporary file name.
tmpFileName := os.TempDir() + "/" + "minio-" + nextSuffix()
f, _ := os.Create(tmpFileName)
f.Close()
defer os.Remove(tmpFileName)
// List of all tests for posix initialization.
testCases := []struct {
diskPath string
err error
}{
// Validates input argument cannot be empty.
{
"",
errInvalidArgument,
},
// Validates if the directory does not exist and
// gets automatically created.
{
tmpDirName,
nil,
},
// Validates if the disk exists as file and returns error
// not a directory.
{
tmpFileName,
syscall.ENOTDIR,
},
}
// Validate all test cases.
for i, testCase := range testCases {
_, err := newPosix(testCase.diskPath)
if err != testCase.err {
t.Fatalf("Test %d failed wanted: %s, got: %s", i+1, err, testCase.err)
}
}
}
// Test posix.MakeVol()
func TestMakeVol(t *testing.T) {
// create posix test setup
posix, path, err := newPosixTestSetup()
if err != nil {
t.Fatalf("Unable to create posix test setup, %s", err)
}
defer removeAll(path)
// Setup test environment.
// Create a file.
if err := ioutil.WriteFile(slashpath.Join(path, "vol-as-file"), []byte{}, os.ModePerm); err != nil {
t.Fatalf("Unable to create file, %s", err)
}
// Create a directory.
if err := os.Mkdir(slashpath.Join(path, "existing-vol"), 0777); err != nil {
t.Fatalf("Unable to create directory, %s", err)
}
testCases := []struct {
volName string
expectedErr error
}{
{"success-vol", nil},
{"vol-as-file", errVolumeExists},
{"existing-vol", errVolumeExists},
}
for _, testCase := range testCases {
if err := posix.MakeVol(testCase.volName); err != testCase.expectedErr {
t.Fatalf("Case: %s, expected: %s, got: %s", testCase, testCase.expectedErr, err)
}
}
// Test for permission denied.
if runtime.GOOS != "windows" {
// Initialize posix storage layer for permission denied error.
posix, err := newPosix("/usr")
if err != nil {
t.Fatalf("Unable to initialize posix, %s", err)
}
if err := posix.MakeVol("test-vol"); err != errDiskAccessDenied {
t.Fatalf("expected: %s, got: %s", errDiskAccessDenied, err)
}
}
}
// Test posix.DeleteVol()
func TestDeleteVol(t *testing.T) {
// create posix test setup
posix, path, err := newPosixTestSetup()
if err != nil {
t.Fatalf("Unable to create posix test setup, %s", err)
}
defer removeAll(path)
// Setup test environment.
if err := posix.MakeVol("success-vol"); err != nil {
t.Fatalf("Unable to create volume, %s", err)
}
// Test failure cases.
vol := slashpath.Join(path, "nonempty-vol")
if err := os.Mkdir(vol, 0777); err != nil {
t.Fatalf("Unable to create directory, %s", err)
}
if err := ioutil.WriteFile(slashpath.Join(vol, "test-file"), []byte{}, os.ModePerm); err != nil {
t.Fatalf("Unable to create file, %s", err)
}
testCases := []struct {
volName string
expectedErr error
}{
{"success-vol", nil},
{"nonexistent-vol", errVolumeNotFound},
{"nonempty-vol", errVolumeNotEmpty},
}
for _, testCase := range testCases {
if err := posix.DeleteVol(testCase.volName); err != testCase.expectedErr {
t.Fatalf("Case: %s, expected: %s, got: %s", testCase, testCase.expectedErr, err)
}
}
// Test for permission denied.
if runtime.GOOS != "windows" {
// Initialize posix storage layer for permission denied error.
posix, err := newPosix("/usr")
if err != nil {
t.Fatalf("Unable to initialize posix, %s", err)
}
if err := posix.DeleteVol("bin"); !os.IsPermission(err) {
t.Fatalf("expected: Permission error, got: %s", err)
}
}
}
// Test posix.StatVol()
func TestStatVol(t *testing.T) {
// create posix test setup
posix, path, err := newPosixTestSetup()
if err != nil {
t.Fatalf("Unable to create posix test setup, %s", err)
}
defer removeAll(path)
// Setup test environment.
if err := posix.MakeVol("success-vol"); err != nil {
t.Fatalf("Unable to create volume, %s", err)
}
testCases := []struct {
volName string
expectedErr error
}{
{"success-vol", nil},
{"nonexistent-vol", errVolumeNotFound},
}
for _, testCase := range testCases {
if _, err := posix.StatVol(testCase.volName); err != testCase.expectedErr {
t.Fatalf("Case: %s, expected: %s, got: %s", testCase, testCase.expectedErr, err)
}
}
}
// Test posix.ListVols()
func TestListVols(t *testing.T) {
// create posix test setup
posix, path, err := newPosixTestSetup()
if err != nil {
t.Fatalf("Unable to create posix test setup, %s", err)
}
defer removeAll(path)
// Test empty list vols.
if volInfo, err := posix.ListVols(); err != nil {
t.Fatalf("expected: <nil>, got: %s", err)
} else if len(volInfo) != 0 {
t.Fatalf("expected: [], got: %s", volInfo)
}
// Test non-empty list vols.
if err := posix.MakeVol("success-vol"); err != nil {
t.Fatalf("Unable to create volume, %s", err)
}
if volInfo, err := posix.ListVols(); err != nil {
t.Fatalf("expected: <nil>, got: %s", err)
} else if len(volInfo) != 1 {
t.Fatalf("expected: 1, got: %d", len(volInfo))
} else if volInfo[0].Name != "success-vol" {
t.Fatalf("expected: success-vol, got: %s", volInfo[0].Name)
}
}
// Test posix.DeleteFile()
func TestDeleteFile(t *testing.T) {
// create posix test setup
posix, path, err := newPosixTestSetup()
if err != nil {
t.Fatalf("Unable to create posix test setup, %s", err)
}
defer removeAll(path)
// Setup test environment.
if err := posix.MakeVol("success-vol"); err != nil {
t.Fatalf("Unable to create volume, %s", err)
}
if err := posix.AppendFile("success-vol", "success-file", []byte("Hello, world")); err != nil {
t.Fatalf("Unable to create file, %s", err)
}
testCases := []struct {
fileName string
expectedErr error
}{
{"success-file", nil},
{"nonexistent-file", errFileNotFound},
}
for _, testCase := range testCases {
if err := posix.DeleteFile("success-vol", testCase.fileName); err != testCase.expectedErr {
t.Fatalf("Case: %s, expected: %s, got: %s", testCase, testCase.expectedErr, err)
}
}
// Test for permission denied.
if runtime.GOOS != "windows" {
// Initialize posix storage layer for permission denied error.
posix, err := newPosix("/usr")
if err != nil {
t.Fatalf("Unable to initialize posix, %s", err)
}
if err := posix.DeleteFile("bin", "yes"); !os.IsPermission(err) {
t.Fatalf("expected: Permission error, got: %s", err)
}
}
}
// Test posix.ReadFile()
func TestReadFile(t *testing.T) {
// create posix test setup
posix, path, err := newPosixTestSetup()
if err != nil {
t.Fatalf("Unable to create posix test setup, %s", err)
}
defer removeAll(path)
volume := "success-vol"
// Setup test environment.
if err = posix.MakeVol(volume); err != nil {
t.Fatalf("Unable to create volume, %s", err)
}
// Create directory to make errIsNotRegular
if err = os.Mkdir(slashpath.Join(path, "success-vol", "object-as-dir"), 0777); err != nil {
t.Fatalf("Unable to create directory, %s", err)
}
testCases := []struct {
volume string
fileName string
offset int64
bufSize int
expectedBuf []byte
expectedErr error
}{
// Successful read at offset 0 and proper buffer size. - 1
{
volume, "myobject", 0, 5,
[]byte("hello"), nil,
},
// Success read at hierarchy. - 2
{
volume, "path/to/my/object", 0, 5,
[]byte("hello"), nil,
},
// One path segment length is 255 chars long. - 3
{
volume, "path/to/my/object000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001",
0, 5, []byte("hello"), nil},
// Whole path is 1024 characters long, success case. - 4
{
volume, "level0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001/level0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002/level0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003/object000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001",
0, 5, []byte("hello"),
func() error {
// On darwin HFS does not support > 1024 characters.
if runtime.GOOS == "darwin" {
return errFileNameTooLong
}
// On all other platforms return success.
return nil
}(),
},
// Object is a directory. - 5
{
volume, "object-as-dir",
0, 5, nil, errIsNotRegular},
// One path segment length is > 255 chars long. - 6
{
volume, "path/to/my/object0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001",
0, 5, nil, errFileNameTooLong},
// Path length is > 1024 chars long. - 7
{
volume, "level0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001/level0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002/level0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003/object000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001",
0, 5, nil, errFileNameTooLong},
// Buffer size greater than object size. - 8
{
volume, "myobject", 0, 16,
[]byte("hello, world"),
io.ErrUnexpectedEOF,
},
// Reading from an offset success. - 9
{
volume, "myobject", 7, 5,
[]byte("world"), nil,
},
// Reading from an object but buffer size greater. - 10
{
volume, "myobject",
7, 8,
[]byte("world"),
io.ErrUnexpectedEOF,
},
// Seeking into a wrong offset, return PathError. - 11
{
volume, "myobject",
-1, 5,
nil,
func() error {
if runtime.GOOS == "windows" {
return &os.PathError{
Op: "seek",
Path: preparePath(slashpath.Join(path, "success-vol", "myobject")),
Err: errors.New("An attempt was made to move the file pointer before the beginning of the file."),
}
}
return &os.PathError{
Op: "seek",
Path: preparePath(slashpath.Join(path, "success-vol", "myobject")),
Err: os.ErrInvalid,
}
}(),
},
// Seeking ahead returns io.EOF. - 12
{
volume, "myobject", 14, 1, nil, io.EOF,
},
// Empty volume name. - 13
{
"", "myobject", 14, 1, nil, errInvalidArgument,
},
// Empty filename name. - 14
{
volume, "", 14, 1, nil, errIsNotRegular,
},
// Non existent volume name - 15.
{
"abcd", "", 14, 1, nil, errVolumeNotFound,
},
// Non existent filename - 16.
{
volume, "abcd", 14, 1, nil, errFileNotFound,
},
}
// Create all files needed during testing.
appendFiles := testCases[:4]
// Create test files for further reading.
for i, appendFile := range appendFiles {
err = posix.AppendFile(volume, appendFile.fileName, []byte("hello, world"))
if err != appendFile.expectedErr {
t.Fatalf("Creating file failed: %d %#v, expected: %s, got: %s", i+1, appendFile, appendFile.expectedErr, err)
}
}
// Following block validates all ReadFile test cases.
for i, testCase := range testCases {
// Common read buffer.
var buf = make([]byte, testCase.bufSize)
n, err := posix.ReadFile(testCase.volume, testCase.fileName, testCase.offset, buf)
if err != nil && testCase.expectedErr != nil {
// Validate if the type string of the errors are an exact match.
if err.Error() != testCase.expectedErr.Error() {
t.Errorf("Case: %d %#v, expected: %s, got: %s", i+1, testCase, testCase.expectedErr, err)
}
// Err unexpected EOF special case, where we verify we have provided a larger
// buffer than the data itself, but the results are in-fact valid. So we validate
// this error condition specifically treating it as a good condition with valid
// results. In this scenario return 'n' is always lesser than the input buffer.
if err == io.ErrUnexpectedEOF {
if !bytes.Equal(testCase.expectedBuf, buf[:n]) {
t.Errorf("Case: %d %#v, expected: \"%s\", got: \"%s\"", i+1, testCase, string(testCase.expectedBuf), string(buf[:testCase.bufSize]))
}
if n > int64(len(buf)) {
t.Errorf("Case: %d %#v, expected: %d, got: %d", i+1, testCase, testCase.bufSize, n)
}
}
}
// ReadFile has returned success, but our expected error is non 'nil'.
if err == nil && err != testCase.expectedErr {
t.Errorf("Case: %d %#v, expected: %s, got :%s", i+1, testCase, testCase.expectedErr, err)
}
// Expected error retured, proceed further to validate the returned results.
if err == nil && err == testCase.expectedErr {
if !bytes.Equal(testCase.expectedBuf, buf) {
t.Errorf("Case: %d %#v, expected: \"%s\", got: \"%s\"", i+1, testCase, string(testCase.expectedBuf), string(buf[:testCase.bufSize]))
}
if n != int64(testCase.bufSize) {
t.Errorf("Case: %d %#v, expected: %d, got: %d", i+1, testCase, testCase.bufSize, n)
}
}
}
// Test for permission denied.
if runtime.GOOS == "linux" {
// Initialize posix storage layer for permission denied error.
posix, err := newPosix("/")
if err != nil {
t.Errorf("Unable to initialize posix, %s", err)
}
if err == nil {
// Common read buffer.
var buf = make([]byte, 10)
if _, err = posix.ReadFile("proc", "1/fd", 0, buf); err != errFileAccessDenied {
t.Errorf("expected: %s, got: %s", errFileAccessDenied, err)
}
}
}
}
// Test posix.AppendFile()
func TestAppendFile(t *testing.T) {
// create posix test setup
posix, path, err := newPosixTestSetup()
if err != nil {
t.Fatalf("Unable to create posix test setup, %s", err)
}
defer removeAll(path)
// Setup test environment.
if err = posix.MakeVol("success-vol"); err != nil {
t.Fatalf("Unable to create volume, %s", err)
}
// Create directory to make errIsNotRegular
if err = os.Mkdir(slashpath.Join(path, "success-vol", "object-as-dir"), 0777); err != nil {
t.Fatalf("Unable to create directory, %s", err)
}
testCases := []struct {
fileName string
expectedErr error
}{
{"myobject", nil},
{"path/to/my/object", nil},
// Test to append to previously created file.
{"myobject", nil},
// Test to use same path of previously created file.
{"path/to/my/testobject", nil},
// One path segment length is 255 chars long.
{"path/to/my/object000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001", nil},
{"object-as-dir", errIsNotRegular},
// path segment uses previously uploaded object.
{"myobject/testobject", errFileAccessDenied},
// One path segment length is > 255 chars long.
{"path/to/my/object0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001", errFileNameTooLong},
// path length is > 1024 chars long.
{"level0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001/level0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002/level0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003/object000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001", errFileNameTooLong},
}
// Add path length > 1024 test specially as OS X system does not support 1024 long path.
err = errFileNameTooLong
if runtime.GOOS != "darwin" {
err = nil
}
// path length is 1024 chars long.
testCases = append(testCases, struct {
fileName string
expectedErr error
}{"level0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001/level0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002/level0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003/object000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001", err})
for _, testCase := range testCases {
if err := posix.AppendFile("success-vol", testCase.fileName, []byte("hello, world")); err != testCase.expectedErr {
t.Fatalf("Case: %s, expected: %s, got: %s", testCase, testCase.expectedErr, err)
}
}
// Test for permission denied.
if runtime.GOOS != "windows" {
// Initialize posix storage layer for permission denied error.
posix, err := newPosix("/usr")
if err != nil {
t.Fatalf("Unable to initialize posix, %s", err)
}
if err := posix.AppendFile("bin", "yes", []byte("hello, world")); !os.IsPermission(err) {
t.Fatalf("expected: Permission error, got: %s", err)
}
}
}
// Test posix.RenameFile()
func TestRenameFile(t *testing.T) {
// create posix test setup
posix, path, err := newPosixTestSetup()
if err != nil {
t.Fatalf("Unable to create posix test setup, %s", err)
}
defer removeAll(path)
// Setup test environment.
if err := posix.MakeVol("src-vol"); err != nil {
t.Fatalf("Unable to create volume, %s", err)
}
if err := posix.MakeVol("dest-vol"); err != nil {
t.Fatalf("Unable to create volume, %s", err)
}
if err := posix.AppendFile("src-vol", "file1", []byte("Hello, world")); err != nil {
t.Fatalf("Unable to create file, %s", err)
}
if err := posix.AppendFile("src-vol", "file2", []byte("Hello, world")); err != nil {
t.Fatalf("Unable to create file, %s", err)
}
if err := posix.AppendFile("src-vol", "path/to/file1", []byte("Hello, world")); err != nil {
t.Fatalf("Unable to create file, %s", err)
}
testCases := []struct {
srcPath string
destPath string
expectedErr error
}{
{"file1", "file-one", nil},
{"path/", "new-path/", nil},
// Test to overwrite destination file.
{"file2", "file-one", nil},
// Test to check failure of source and destination are not same type.
{"path/", "file-one", errFileAccessDenied},
// Test to check failure of destination directory exists.
{"path/", "new-path/", errFileAccessDenied},
}
for _, testCase := range testCases {
if err := posix.RenameFile("src-vol", testCase.srcPath, "dest-vol", testCase.destPath); err != testCase.expectedErr {
t.Fatalf("Case: %s, expected: %s, got: %s", testCase, testCase.expectedErr, err)
}
}
}
// Test posix.StatFile()
func TestStatFile(t *testing.T) {
// create posix test setup
posix, path, err := newPosixTestSetup()
if err != nil {
t.Fatalf("Unable to create posix test setup, %s", err)
}
defer removeAll(path)
// Setup test environment.
if err := posix.MakeVol("success-vol"); err != nil {
t.Fatalf("Unable to create volume, %s", err)
}
if err := posix.AppendFile("success-vol", "success-file", []byte("Hello, world")); err != nil {
t.Fatalf("Unable to create file, %s", err)
}
if err := posix.AppendFile("success-vol", "path/to/success-file", []byte("Hello, world")); err != nil {
t.Fatalf("Unable to create file, %s", err)
}
testCases := []struct {
path string
expectedErr error
}{
{"success-file", nil},
{"path/to/success-file", nil},
// Test nonexistent file.
{"nonexistent-file", errFileNotFound},
// Test nonexistent path.
{"path/2/success-file", errFileNotFound},
// Test a directory.
{"path", errFileNotFound},
}
for _, testCase := range testCases {
if _, err := posix.StatFile("success-vol", testCase.path); err != testCase.expectedErr {
t.Fatalf("Case: %s, expected: %s, got: %s", testCase, testCase.expectedErr, err)
}
}
}
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