package fs

import (
	"io/ioutil"
	"os"
	"path/filepath"
	"testing"
)

func TestExists(t *testing.T) {
	tmp, err := ioutil.TempDir("", "fs-test-")
	if err != nil {
		panic(err)
	}

	filename := filepath.Join(tmp, "foo")

	if Exists(filename) {
		t.Errorf("shouldn't have been able to find non-existant file: %s", filename)
	}

	f, err := os.Create(filename)
	if err != nil {
		t.Errorf("problem opening fresh file (%q): %v", filename, err)
	}
	f.Close()

	if !Exists(filename) {
		t.Errorf("failure to find existant file: %s", filename)
	}
}