Fixed unittest
diff --git a/excel/src/test/java/org/apache/metamodel/excel/ExcelDataContextTest.java b/excel/src/test/java/org/apache/metamodel/excel/ExcelDataContextTest.java
index 2990417..13cfdec 100644
--- a/excel/src/test/java/org/apache/metamodel/excel/ExcelDataContextTest.java
+++ b/excel/src/test/java/org/apache/metamodel/excel/ExcelDataContextTest.java
@@ -524,7 +524,7 @@
         DataContext dc = new ExcelDataContext(file);
         Schema schema = dc.getDefaultSchema();
         assertEquals(
-                "[Table[name=Sheet1,type=null,remarks=null], Table[name=Sheet2,type=null,remarks=null], Table[name=Sheet3,type=null,remarks=null]]",
+                "[Table[name=Sheet1,type=TABLE,remarks=null], Table[name=Sheet2,type=TABLE,remarks=null], Table[name=Sheet3,type=TABLE,remarks=null]]",
                 Arrays.toString(schema.getTables().toArray()));
 
         assertEquals(0, schema.getTableByName("Sheet2").getColumnCount());