diff --git a/pkging/costello/costello.go b/pkging/costello/costello.go
index d5486ad..0342a2c 100644
--- a/pkging/costello/costello.go
+++ b/pkging/costello/costello.go
@@ -4,15 +4,15 @@ import (
 	"fmt"
 	"os"
 	"testing"
-	"time"
 
+	"github.com/markbates/pkger/here"
 	"github.com/markbates/pkger/pkging"
 	"github.com/stretchr/testify/require"
 )
 
 type AllFn func(ref *Ref) (pkging.Pkger, error)
 
-func All(t *testing.T, ref *Ref, fn AllFn) {
+func All(t *testing.T, fn AllFn) {
 	r := require.New(t)
 
 	type tf func(*testing.T, *Ref, pkging.Pkger)
@@ -29,12 +29,19 @@ func All(t *testing.T, ref *Ref, fn AllFn) {
 		"Walk":      WalkTest,
 	}
 
+	ref, err := NewRef()
+	r.NoError(err)
+
 	pkg, err := fn(ref)
 	r.NoError(err)
 
 	for n, tt := range tests {
 		t.Run(fmt.Sprintf("%T/%s", pkg, n), func(st *testing.T) {
 			st.Parallel()
+
+			ref, err := NewRef()
+			r.NoError(err)
+
 			pkg, err := fn(ref)
 			r.NoError(err)
 
@@ -46,10 +53,31 @@ func All(t *testing.T, ref *Ref, fn AllFn) {
 
 func cmpFileInfo(t *testing.T, a os.FileInfo, b os.FileInfo) {
 	t.Helper()
+
 	r := require.New(t)
+
 	r.Equal(a.IsDir(), b.IsDir())
-	r.Equal(a.ModTime().Format(time.RFC3339), b.ModTime().Format(time.RFC3339))
-	r.Equal(a.Mode(), b.Mode())
+	r.Equal(a.Mode().String(), b.Mode().String())
 	r.Equal(a.Name(), b.Name())
 	r.Equal(a.Size(), b.Size())
+	r.NotZero(b.ModTime())
+}
+
+func cmpHereInfo(t *testing.T, a here.Info, b here.Info) {
+	t.Helper()
+
+	r := require.New(t)
+
+	r.NotZero(a)
+	r.NotZero(b)
+
+	r.Equal(a.ImportPath, b.ImportPath)
+	r.Equal(a.Name, b.Name)
+
+	am := a.Module
+	bm := b.Module
+
+	r.Equal(am.Path, bm.Path)
+	r.Equal(am.Main, bm.Main)
+	r.Equal(am.GoVersion, bm.GoVersion)
 }
diff --git a/pkging/costello/create.go b/pkging/costello/create.go
index 0c5df6e..9b5bd69 100644
--- a/pkging/costello/create.go
+++ b/pkging/costello/create.go
@@ -1,9 +1,7 @@
 package costello
 
 import (
-	"fmt"
-	"os"
-	"path/filepath"
+	"io/ioutil"
 	"strings"
 	"testing"
 
@@ -14,32 +12,31 @@ import (
 func CreateTest(t *testing.T, ref *Ref, pkg pkging.Pkger) {
 	r := require.New(t)
 
-	const name = "create.test"
+	const name = "/create.test"
 
-	fp := filepath.Join(ref.Dir, name)
-	os.RemoveAll(fp)
-	defer os.RemoveAll(fp)
-
-	_, err := os.Stat(fp)
-	r.Error(err)
-
-	_, err = pkg.Stat(name)
+	_, err := pkg.Stat(name)
 	r.Error(err)
 
 	data := []byte(strings.ToUpper(name))
 
-	osf, err := os.Create(fp)
+	f, err := pkg.Create(name)
 	r.NoError(err)
 
-	_, err = osf.Write(data)
+	_, err = f.Write(data)
 	r.NoError(err)
-	r.NoError(osf.Close())
+	r.NoError(f.Close())
 
-	psf, err := pkg.Create(fmt.Sprintf("/%s", name))
+	f, err = pkg.Open(name)
 	r.NoError(err)
 
-	_, err = psf.Write(data)
+	info, err := f.Stat()
 	r.NoError(err)
-	r.NoError(psf.Close())
-	openTest(name, t, ref, pkg)
+
+	b, err := ioutil.ReadAll(f)
+	r.NoError(err)
+	r.NoError(f.Close())
+
+	r.Equal(data, b)
+	r.Equal("create.test", info.Name())
+
 }
diff --git a/pkging/costello/current.go b/pkging/costello/current.go
index b3bbfbd..f16be92 100644
--- a/pkging/costello/current.go
+++ b/pkging/costello/current.go
@@ -4,13 +4,13 @@ import (
 	"testing"
 
 	"github.com/markbates/pkger/pkging"
-	"github.com/stretchr/testify/require"
 )
 
 func CurrentTest(t *testing.T, ref *Ref, pkg pkging.Pkger) {
-	r := require.New(t)
-
+	// panic("ref")
 	cur, err := pkg.Current()
-	r.NoError(err)
-	r.Equal(ref.Info, cur)
+	if err != nil {
+		t.Fatal(err)
+	}
+	cmpHereInfo(t, ref.Info, cur)
 }
diff --git a/pkging/costello/info.go b/pkging/costello/info.go
index d361e31..d998f0d 100644
--- a/pkging/costello/info.go
+++ b/pkging/costello/info.go
@@ -13,5 +13,5 @@ func InfoTest(t *testing.T, ref *Ref, pkg pkging.Pkger) {
 	info, err := pkg.Info("app")
 	r.NoError(err)
 
-	r.Equal(ref.Info, info)
+	cmpHereInfo(t, ref.Info, info)
 }
diff --git a/pkging/costello/mkdir_all.go b/pkging/costello/mkdir_all.go
index 2bca6e5..d9c0407 100644
--- a/pkging/costello/mkdir_all.go
+++ b/pkging/costello/mkdir_all.go
@@ -1,10 +1,6 @@
 package costello
 
 import (
-	"os"
-	"path"
-	"path/filepath"
-	"strings"
 	"testing"
 
 	"github.com/markbates/pkger/pkging"
@@ -14,29 +10,19 @@ import (
 func MkdirAllTest(t *testing.T, ref *Ref, pkg pkging.Pkger) {
 	r := require.New(t)
 
-	parts := []string{"all", "this", "useless", "beauty"}
+	name := "/all/this/useless/beauty"
 
-	fp := ref.Dir
-	for _, part := range parts {
-		fp = filepath.Join(fp, part)
-	}
-
-	os.RemoveAll(fp)
-	defer os.RemoveAll(fp)
-
-	_, err := os.Stat(fp)
+	_, err := pkg.Stat(name)
 	r.Error(err)
 
-	name := path.Join(parts...)
-	if !strings.HasPrefix(name, "/") {
-		name = "/" + name
-	}
-
-	_, err = pkg.Stat(name)
-	r.Error(err)
-
-	r.NoError(os.MkdirAll(fp, 0755))
 	r.NoError(pkg.MkdirAll(name, 0755))
 
-	openTest(name, t, ref, pkg)
+	f, err := pkg.Open(name)
+	r.NoError(err)
+
+	info, err := f.Stat()
+	r.NoError(err)
+
+	r.Equal("app:"+name, f.Name())
+	r.Equal("beauty", info.Name())
 }
diff --git a/pkging/costello/ref.go b/pkging/costello/ref.go
index 0e789d4..95ae879 100644
--- a/pkging/costello/ref.go
+++ b/pkging/costello/ref.go
@@ -3,6 +3,7 @@ package costello
 import (
 	"os"
 	"path/filepath"
+	"runtime"
 
 	"github.com/markbates/pkger/here"
 )
@@ -33,9 +34,13 @@ func NewRef() (*Ref, error) {
 		Info: here.Info{
 			ImportPath: "app",
 			Dir:        dir,
+			Name:       "app",
 			Module: here.Module{
-				Path: "app",
-				Dir:  dir,
+				Main:      true,
+				Path:      "app",
+				Dir:       dir,
+				GoMod:     filepath.Join(dir, "go.mod"),
+				GoVersion: runtime.Version(),
 			},
 		},
 	}
diff --git a/pkging/costello/stat.go b/pkging/costello/stat.go
index dbc2fa2..6e2243f 100644
--- a/pkging/costello/stat.go
+++ b/pkging/costello/stat.go
@@ -4,7 +4,6 @@ import (
 	"os"
 	"path/filepath"
 	"testing"
-	"time"
 
 	"github.com/markbates/pkger/pkging"
 	"github.com/stretchr/testify/require"
@@ -20,8 +19,5 @@ func StatTest(t *testing.T, ref *Ref, pkg pkging.Pkger) {
 	psi, err := pkg.Stat("/go.mod")
 	r.NoError(err)
 
-	r.Equal(osi.Name(), psi.Name())
-	r.Equal(osi.Mode(), psi.Mode())
-	r.Equal(osi.Size(), psi.Size())
-	r.Equal(osi.ModTime().Format(time.RFC3339), psi.ModTime().Format(time.RFC3339))
+	cmpFileInfo(t, osi, psi)
 }
diff --git a/pkging/mem/mem_test.go b/pkging/mem/mem_test.go
index 90ed9bc..e18817f 100644
--- a/pkging/mem/mem_test.go
+++ b/pkging/mem/mem_test.go
@@ -9,11 +9,7 @@ import (
 )
 
 func Test_Pkger(t *testing.T) {
-	ref, err := costello.NewRef()
-	if err != nil {
-		t.Fatal(err)
-	}
-	costello.All(t, ref, func(ref *costello.Ref) (pkging.Pkger, error) {
+	costello.All(t, func(ref *costello.Ref) (pkging.Pkger, error) {
 		return mem.New(ref.Info)
 	})
 }
diff --git a/pkging/stdos/create_test.go b/pkging/stdos/create_test.go
new file mode 100644
index 0000000..9a49049
--- /dev/null
+++ b/pkging/stdos/create_test.go
@@ -0,0 +1,20 @@
+package stdos
+
+import (
+	"testing"
+
+	"github.com/markbates/pkger/pkging/costello"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_Pkger_Create(t *testing.T) {
+	r := require.New(t)
+
+	ref, err := costello.NewRef()
+	r.NoError(err)
+
+	pkg, err := NewTemp(ref)
+	r.NoError(err)
+
+	costello.CreateTest(t, ref, pkg)
+}
diff --git a/pkging/stdos/current_test.go b/pkging/stdos/current_test.go
new file mode 100644
index 0000000..41af520
--- /dev/null
+++ b/pkging/stdos/current_test.go
@@ -0,0 +1,20 @@
+package stdos
+
+import (
+	"testing"
+
+	"github.com/markbates/pkger/pkging/costello"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_Pkger_Current(t *testing.T) {
+	r := require.New(t)
+
+	ref, err := costello.NewRef()
+	r.NoError(err)
+
+	pkg, err := NewTemp(ref)
+	r.NoError(err)
+
+	costello.CurrentTest(t, ref, pkg)
+}
diff --git a/pkging/stdos/info_test.go b/pkging/stdos/info_test.go
new file mode 100644
index 0000000..119fee4
--- /dev/null
+++ b/pkging/stdos/info_test.go
@@ -0,0 +1,20 @@
+package stdos
+
+import (
+	"testing"
+
+	"github.com/markbates/pkger/pkging/costello"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_Pkger_Info(t *testing.T) {
+	r := require.New(t)
+
+	ref, err := costello.NewRef()
+	r.NoError(err)
+
+	pkg, err := NewTemp(ref)
+	r.NoError(err)
+
+	costello.InfoTest(t, ref, pkg)
+}
diff --git a/pkging/stdos/mkdirall_test.go b/pkging/stdos/mkdirall_test.go
new file mode 100644
index 0000000..315b6a4
--- /dev/null
+++ b/pkging/stdos/mkdirall_test.go
@@ -0,0 +1,20 @@
+package stdos
+
+import (
+	"testing"
+
+	"github.com/markbates/pkger/pkging/costello"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_Pkger_MkdirAll(t *testing.T) {
+	r := require.New(t)
+
+	ref, err := costello.NewRef()
+	r.NoError(err)
+
+	pkg, err := NewTemp(ref)
+	r.NoError(err)
+
+	costello.MkdirAllTest(t, ref, pkg)
+}
diff --git a/pkging/stdos/open_test.go b/pkging/stdos/open_test.go
new file mode 100644
index 0000000..fc92f35
--- /dev/null
+++ b/pkging/stdos/open_test.go
@@ -0,0 +1,20 @@
+package stdos
+
+import (
+	"testing"
+
+	"github.com/markbates/pkger/pkging/costello"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_Pkger_Open(t *testing.T) {
+	r := require.New(t)
+
+	ref, err := costello.NewRef()
+	r.NoError(err)
+
+	pkg, err := NewTemp(ref)
+	r.NoError(err)
+
+	costello.OpenTest(t, ref, pkg)
+}
diff --git a/pkging/stdos/remove_test.go b/pkging/stdos/remove_test.go
new file mode 100644
index 0000000..d0f16d4
--- /dev/null
+++ b/pkging/stdos/remove_test.go
@@ -0,0 +1,20 @@
+package stdos
+
+import (
+	"testing"
+
+	"github.com/markbates/pkger/pkging/costello"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_Pkger_Remove(t *testing.T) {
+	r := require.New(t)
+
+	ref, err := costello.NewRef()
+	r.NoError(err)
+
+	pkg, err := NewTemp(ref)
+	r.NoError(err)
+
+	costello.RemoveTest(t, ref, pkg)
+}
diff --git a/pkging/stdos/removeall_test.go b/pkging/stdos/removeall_test.go
new file mode 100644
index 0000000..86370ea
--- /dev/null
+++ b/pkging/stdos/removeall_test.go
@@ -0,0 +1,20 @@
+package stdos
+
+import (
+	"testing"
+
+	"github.com/markbates/pkger/pkging/costello"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_Pkger_RemoveAll(t *testing.T) {
+	r := require.New(t)
+
+	ref, err := costello.NewRef()
+	r.NoError(err)
+
+	pkg, err := NewTemp(ref)
+	r.NoError(err)
+
+	costello.RemoveAllTest(t, ref, pkg)
+}
diff --git a/pkging/stdos/stat_test.go b/pkging/stdos/stat_test.go
new file mode 100644
index 0000000..9a97c0a
--- /dev/null
+++ b/pkging/stdos/stat_test.go
@@ -0,0 +1,20 @@
+package stdos
+
+import (
+	"testing"
+
+	"github.com/markbates/pkger/pkging/costello"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_Pkger_Stat(t *testing.T) {
+	r := require.New(t)
+
+	ref, err := costello.NewRef()
+	r.NoError(err)
+
+	pkg, err := NewTemp(ref)
+	r.NoError(err)
+
+	costello.StatTest(t, ref, pkg)
+}
diff --git a/pkging/stdos/stdos_test.go b/pkging/stdos/stdos_test.go
index 582955a..d951890 100644
--- a/pkging/stdos/stdos_test.go
+++ b/pkging/stdos/stdos_test.go
@@ -1,39 +1,34 @@
-package stdos_test
+package stdos
 
 import (
 	"io/ioutil"
+	"path/filepath"
 	"testing"
 
+	"github.com/markbates/pkger/here"
 	"github.com/markbates/pkger/pkging"
-	"github.com/markbates/pkger/pkging/pkgtest"
-	"github.com/markbates/pkger/pkging/stdos"
+	"github.com/markbates/pkger/pkging/costello"
 )
 
-func Test_Pkger(t *testing.T) {
-	t.SkipNow()
-	suite, err := pkgtest.NewSuite("stdos", func() (pkging.Pkger, error) {
-		app, err := pkgtest.App()
-		if err != nil {
-			return nil, err
-		}
-
-		dir, err := ioutil.TempDir("", "stdos")
-		if err != nil {
-			return nil, err
-		}
-
-		app.Dir = dir
-
-		mypkging, err := stdos.New(app.Info)
-		if err != nil {
-			return nil, err
-		}
-
-		return mypkging, nil
-	})
+func NewTemp(ref *costello.Ref) (pkging.Pkger, error) {
+	dir, err := ioutil.TempDir("", "stdos")
 	if err != nil {
-		t.Fatal(err)
+		return nil, err
 	}
 
-	suite.Test(t)
+	info := here.Info{
+		Module:     ref.Module,
+		ImportPath: ref.ImportPath,
+		Name:       ref.Name,
+		Dir:        dir,
+	}
+	info.Module.Dir = dir
+	info.Module.GoMod = filepath.Join(dir, "go.mod")
+	return New(info)
+}
+
+func Test_Pkger(t *testing.T) {
+	costello.All(t, func(ref *costello.Ref) (pkging.Pkger, error) {
+		return NewTemp(ref)
+	})
 }
diff --git a/pkging/stdos/walk_test.go b/pkging/stdos/walk_test.go
new file mode 100644
index 0000000..79a0765
--- /dev/null
+++ b/pkging/stdos/walk_test.go
@@ -0,0 +1,20 @@
+package stdos
+
+import (
+	"testing"
+
+	"github.com/markbates/pkger/pkging/costello"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_Pkger_Walk(t *testing.T) {
+	r := require.New(t)
+
+	ref, err := costello.NewRef()
+	r.NoError(err)
+
+	pkg, err := NewTemp(ref)
+	r.NoError(err)
+
+	costello.WalkTest(t, ref, pkg)
+}