fs

Documentation

Overview

Package fs provides a file system abstraction layer.

Index

• type FakeFS
  • func MakeFakeFS() *FakeFS
  • func (fs *FakeFS) Create(name string) (File, error)
  • func (fs *FakeFS) Mkdir(name string, perm os.FileMode) error
  • func (fs *FakeFS) Open(name string) (File, error)
  • func (fs *FakeFS) ReadFile(name string) ([]byte, error)
  • func (fs *FakeFS) Stat(name string) (os.FileInfo, error)
  • func (fs *FakeFS) WriteFile(name string, c []byte) error
• type FakeFile
  • func (f *FakeFile) Close() error
  • func (f *FakeFile) ContentMatches(v []byte) bool
  • func (f *FakeFile) GetContent() []byte
  • func (f *FakeFile) Read(p []byte) (n int, err error)
  • func (f *FakeFile) Stat() (os.FileInfo, error)
  • func (f *FakeFile) Write(p []byte) (n int, err error)
• type Fakefileinfo
  • func (fi *Fakefileinfo) IsDir() bool
  • func (fi *Fakefileinfo) ModTime() time.Time
  • func (fi *Fakefileinfo) Mode() os.FileMode
  • func (fi *Fakefileinfo) Name() string
  • func (fi *Fakefileinfo) Size() int64
  • func (fi *Fakefileinfo) Sys() interface{}
• type File
  • func MakeRealFile(f *os.File) (File, error)
• type FileSystem
  • func MakeRealFS() FileSystem

Types

type FakeFS

type FakeFS struct {
	// contains filtered or unexported fields
}

FakeFS implements FileSystem using a fake in-memory filesystem.

func MakeFakeFS

func MakeFakeFS() *FakeFS

MakeFakeFS returns an instance of FakeFS with no files in it.

func (*FakeFS) Create

func (fs *FakeFS) Create(name string) (File, error)

Create assures a fake file appears in the in-memory file system.

func (*FakeFS) Mkdir

func (fs *FakeFS) Mkdir(name string, perm os.FileMode) error

Mkdir assures a fake directory appears in the in-memory file system.

func (*FakeFS) Open

func (fs *FakeFS) Open(name string) (File, error)

Open returns a fake file in the open state.

func (*FakeFS) ReadFile

func (fs *FakeFS) ReadFile(name string) ([]byte, error)

ReadFile always returns an empty bytes and error depending on content of m.

func (*FakeFS) Stat

func (fs *FakeFS) Stat(name string) (os.FileInfo, error)

Stat always returns nil FileInfo, and returns an error if file does not exist.

func (*FakeFS) WriteFile

func (fs *FakeFS) WriteFile(name string, c []byte) error

WriteFile always succeeds and does nothing.

type FakeFile

type FakeFile struct {
	// contains filtered or unexported fields
}

FakeFile implements File in-memory for tests.

func (*FakeFile) Close

func (f *FakeFile) Close() error

Close marks the fake file closed.

func (*FakeFile) ContentMatches

func (f *FakeFile) ContentMatches(v []byte) bool

ContentMatches returns true if v matches fake file's content.

func (*FakeFile) GetContent

func (f *FakeFile) GetContent() []byte

GetContent the content of a fake file.

func (*FakeFile) Read

func (f *FakeFile) Read(p []byte) (n int, err error)

Read never fails, and doesn't mutate p.

func (*FakeFile) Stat

func (f *FakeFile) Stat() (os.FileInfo, error)

Stat returns nil.

func (*FakeFile) Write

func (f *FakeFile) Write(p []byte) (n int, err error)

Write saves the contents of the argument to memory.

type Fakefileinfo

type Fakefileinfo struct {
	*FakeFile
}

Fakefileinfo implements Fakefileinfo using a fake in-memory filesystem.

func (*Fakefileinfo) IsDir

func (fi *Fakefileinfo) IsDir() bool

IsDir returns if it is a directory

func (*Fakefileinfo) ModTime

func (fi *Fakefileinfo) ModTime() time.Time

ModTime returns the modification time

func (*Fakefileinfo) Mode

func (fi *Fakefileinfo) Mode() os.FileMode

Mode returns the file mode

func (*Fakefileinfo) Name

func (fi *Fakefileinfo) Name() string

Name returns the name of the file

func (*Fakefileinfo) Size

func (fi *Fakefileinfo) Size() int64

Size returns the size of the file

func (*Fakefileinfo) Sys

func (fi *Fakefileinfo) Sys() interface{}

Sys should return underlying data source, but it now returns nil

type File

type File interface {
	io.ReadWriteCloser
	Stat() (os.FileInfo, error)
}

File groups the basic os.File methods.

func MakeRealFile

func MakeRealFile(f *os.File) (File, error)

MakeRealFile makes an instance of realFile.

type FileSystem

type FileSystem interface {
	Create(name string) (File, error)
	Mkdir(name string, perm os.FileMode) error
	Open(name string) (File, error)
	Stat(name string) (os.FileInfo, error)
	ReadFile(name string) ([]byte, error)
	WriteFile(name string, data []byte) error
}

FileSystem groups basic os filesystem methods.

func MakeRealFS

func MakeRealFS() FileSystem

MakeRealFS makes an instance of realFS.