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Filet ๐Ÿ–

A small temporary file utility for Go testing. Built on Afero and heavily inspired by the way Afero tests itself.

Install via: $ go get github.com/Flaque/filet

Then import with:

import (
  filet "github.com/Flaque/filet"
)

Quick overview at GoDocs.

Creating temporaries

Creating temporary directories:

func TestFoo(t *testing.T) {
  filet.TmpDir(t, "") // Creates a temporary dir with no parent directory
  filet.TmpDir(t, "myPath") // Creates a temporary dir at `myPath`
}

Creating temporary files:

func TestFoo(t *testing.T) {
  filet.TmpFile(t, "", "") // Creates a temporary file with no parent dir

  // Creates a temporary file with string "some content"
  filet.TmpFile(t, "", "some content")

  // Creates a temporary file with string "some content"
  filet.TmpFile(t, "myDir", "some content")
}

Creating specified files:

func TestFoo(t *testing.T) {
  filet.File(t, "conf.yaml", "") // Creates a specified file

  // Creates a specified file with string "some content"
  filet.File(t, "/tmp/conf.yaml", "some content")
}

Cleaning up after yourself:

Filet lets you clean up after your files with CleanUp, which is most cleanly used at the beginning of a function with defer. For example:

func TestFoo(t *testing.T) {
  defer filet.CleanUp(t)

  // Create a bunch of temporary stuff here
}

CleanUp will call t.Error if something goes wrong when removing the file.

You can also access the Files itself if you want to add a specificly named file to the cleanup list.

filet.Files = append(filet.Files, "path/to/my/named/file")

Helpers

Filet comes with a few helper functions that are useful for working with your temporary files.

Checking Existence

You can test if a file exists if you want.

func TestFoo(t *testing.T) {
  myBool := filet.Exists(t, "path/to/my/file")
}

Checking DirContains

You can test if a folder contains a file or another directory.

func TestFoo(t *testing.T) {
  myBool := filet.DirContains(t, "path/to/myFolder", "myFile")
}

Checking if a FileSays what you want

You can check if a file's contents says what you want it to with FileSays.

func TestFoo(t *testing.T) {
  myBool := filet.FileSays(t, "path/to/my/dir", []byte("my content here"))
}

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๐Ÿ– A small temporary file utility for Go testing.

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