From be85ca650ac04e39e64fadf7aed97cf1e156f21a Mon Sep 17 00:00:00 2001
From: Uwe Schindler <uschindler@apache.org>
Date: Thu, 30 Jul 2009 16:45:43 +0000
Subject: [PATCH] Add extra test for new TokenStream API backwards layer

git-svn-id: https://svn.apache.org/repos/asf/lucene/java/trunk@799359 13f79535-47bb-0310-9956-ffa450edef68
---
 .../lucene/analysis/TestTokenStreamBWComp.java  | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/src/test/org/apache/lucene/analysis/TestTokenStreamBWComp.java b/src/test/org/apache/lucene/analysis/TestTokenStreamBWComp.java
index 7781226cb8f..f4ac2ec6690 100644
--- a/src/test/org/apache/lucene/analysis/TestTokenStreamBWComp.java
+++ b/src/test/org/apache/lucene/analysis/TestTokenStreamBWComp.java
@@ -267,6 +267,23 @@ public class TestTokenStreamBWComp extends LuceneTestCase {
         stream.addAttribute(PositionIncrementAttribute.class) instanceof PositionIncrementAttributeImpl);
       assertTrue("TypeAttribute is implemented by TypeAttributeImpl",
         stream.addAttribute(TypeAttribute.class) instanceof TypeAttributeImpl);
+        
+      // try to call old API, this should fail
+      try {
+        stream.reset();
+        Token reusableToken = new Token();
+        while ((reusableToken = stream.next(reusableToken)) != null);
+        fail("If only the new API is allowed, this should fail with an UOE");
+      } catch (UnsupportedOperationException uoe) {
+        assertTrue("This TokenStream only supports the new Attributes API.".equals(uoe.getMessage()));
+      }
+      try {
+        stream.reset();
+        while (stream.next() != null);
+        fail("If only the new API is allowed, this should fail with an UOE");
+      } catch (UnsupportedOperationException uoe) {
+        assertTrue("This TokenStream only supports the new Attributes API.".equals(uoe.getMessage()));
+      }
       
       // Test if the wrapper API (onlyUseNewAPI==false) uses TokenWrapper
       // as attribute instance.