diff --git a/datokenizer_test.go b/datokenizer_test.go
index f714e10..64631c4 100644
--- a/datokenizer_test.go
+++ b/datokenizer_test.go
@@ -1,6 +1,7 @@
 package datokenizer
 
 import (
+	"fmt"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -30,3 +31,17 @@
 	assert.True(tok.match("wahlen"))
 	assert.False(tok.match("baum"))
 }
+
+func TestSimpleTokenizer(t *testing.T) {
+	assert := assert.New(t)
+
+	fmt.Println("-------------------")
+
+	tok := parse_file("testdata/simpletok.fst")
+	tok.buildDA()
+	assert.True(tok.match("bau"))
+	/*
+		assert.True(tok.match("bad"))
+		assert.True(tok.match("wald gehen"))
+	*/
+}