diff --git a/internal/filer_test.go b/internal/filer_test.go
index b8fd6365..80935220 100644
--- a/internal/filer_test.go
+++ b/internal/filer_test.go
@@ -15,7 +15,6 @@ import (
 	"github.com/databricks/databricks-sdk-go"
 	"github.com/databricks/databricks-sdk-go/apierr"
 	"github.com/databricks/databricks-sdk-go/service/files"
-	"github.com/databricks/databricks-sdk-go/service/workspace"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
@@ -138,35 +137,10 @@ func runFilerReadDirTest(t *testing.T, ctx context.Context, f filer.Filer) {
 	assert.Len(t, entries, 1)
 	assert.Equal(t, "c", entries[0].Name())
 	assert.True(t, entries[0].IsDir())
-}
 
-func temporaryWorkspaceDir(t *testing.T, w *databricks.WorkspaceClient) string {
-	ctx := context.Background()
-	me, err := w.CurrentUser.Me(ctx)
-	require.NoError(t, err)
-
-	path := fmt.Sprintf("/Users/%s/%s", me.UserName, RandomName("integration-test-filer-wsfs-"))
-
-	// Ensure directory exists, but doesn't exist YET!
-	// Otherwise we could inadvertently remove a directory that already exists on cleanup.
-	t.Logf("mkdir %s", path)
-	err = w.Workspace.MkdirsByPath(ctx, path)
-	require.NoError(t, err)
-
-	// Remove test directory on test completion.
-	t.Cleanup(func() {
-		t.Logf("rm -rf %s", path)
-		err := w.Workspace.Delete(ctx, workspace.Delete{
-			Path:      path,
-			Recursive: true,
-		})
-		if err == nil || apierr.IsMissing(err) {
-			return
-		}
-		t.Logf("unable to remove temporary workspace directory %s: %#v", path, err)
-	})
-
-	return path
+	// TODO: split into a separate PR
+	_, err = f.ReadDir(ctx, "/hello.txt")
+	assert.ErrorIs(t, err, filer.ErrNotADirectory)
 }
 
 func setupWorkspaceFilesTest(t *testing.T) (context.Context, filer.Filer) {
@@ -174,7 +148,7 @@ func setupWorkspaceFilesTest(t *testing.T) (context.Context, filer.Filer) {
 
 	ctx := context.Background()
 	w := databricks.Must(databricks.NewWorkspaceClient())
-	tmpdir := temporaryWorkspaceDir(t, w)
+	tmpdir := TemporaryWorkspaceDir(t, w)
 	f, err := filer.NewWorkspaceFilesClient(w, tmpdir)
 	require.NoError(t, err)
 
diff --git a/internal/helpers.go b/internal/helpers.go
index b51d005b..0f739429 100644
--- a/internal/helpers.go
+++ b/internal/helpers.go
@@ -14,6 +14,9 @@ import (
 
 	"github.com/databricks/cli/cmd/root"
 	_ "github.com/databricks/cli/cmd/version"
+	"github.com/databricks/databricks-sdk-go"
+	"github.com/databricks/databricks-sdk-go/apierr"
+	"github.com/databricks/databricks-sdk-go/service/workspace"
 	"github.com/stretchr/testify/require"
 
 	_ "github.com/databricks/cli/cmd/workspace"
@@ -176,3 +179,32 @@ func writeFile(t *testing.T, name string, body string) string {
 	f.Close()
 	return f.Name()
 }
+
+func TemporaryWorkspaceDir(t *testing.T, w *databricks.WorkspaceClient) string {
+	ctx := context.Background()
+	me, err := w.CurrentUser.Me(ctx)
+	require.NoError(t, err)
+
+	path := fmt.Sprintf("/Users/%s/%s", me.UserName, RandomName("integration-test-wsfs-"))
+
+	// Ensure directory exists, but doesn't exist YET!
+	// Otherwise we could inadvertently remove a directory that already exists on cleanup.
+	t.Logf("mkdir %s", path)
+	err = w.Workspace.MkdirsByPath(ctx, path)
+	require.NoError(t, err)
+
+	// Remove test directory on test completion.
+	t.Cleanup(func() {
+		t.Logf("rm -rf %s", path)
+		err := w.Workspace.Delete(ctx, workspace.Delete{
+			Path:      path,
+			Recursive: true,
+		})
+		if err == nil || apierr.IsMissing(err) {
+			return
+		}
+		t.Logf("unable to remove temporary workspace directory %s: %#v", path, err)
+	})
+
+	return path
+}