From ed28039c43747430372b7da551940316911e199b Mon Sep 17 00:00:00 2001
From: Michael McCandless <mikemccand@apache.org>
Date: Sun, 6 Nov 2011 11:38:42 +0000
Subject: [PATCH] LUCENE-3563: fix test bug

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1198341 13f79535-47bb-0310-9956-ffa450edef68
---
 lucene/src/java/org/apache/lucene/util/PagedBytes.java     | 2 ++
 lucene/src/test/org/apache/lucene/util/TestPagedBytes.java | 4 ++--
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/lucene/src/java/org/apache/lucene/util/PagedBytes.java b/lucene/src/java/org/apache/lucene/util/PagedBytes.java
index 2e29464b90d..983f3bab69c 100644
--- a/lucene/src/java/org/apache/lucene/util/PagedBytes.java
+++ b/lucene/src/java/org/apache/lucene/util/PagedBytes.java
@@ -441,6 +441,7 @@ public final class PagedBytes {
 
     @Override
     public void readBytes(byte[] b, int offset, int len) {
+      assert b.length >= offset + len;
       final int offsetEnd = offset + len;
       while (true) {
         final int blockLeft = blockSize - currentBlockUpto;
@@ -485,6 +486,7 @@ public final class PagedBytes {
 
     @Override
     public void writeBytes(byte[] b, int offset, int length) throws IOException {
+      assert b.length >= offset + length;
       if (length == 0) {
         return;
       }
diff --git a/lucene/src/test/org/apache/lucene/util/TestPagedBytes.java b/lucene/src/test/org/apache/lucene/util/TestPagedBytes.java
index 5205300b027..73e84bd4bf7 100644
--- a/lucene/src/test/org/apache/lucene/util/TestPagedBytes.java
+++ b/lucene/src/test/org/apache/lucene/util/TestPagedBytes.java
@@ -37,7 +37,7 @@ public class TestPagedBytes extends LuceneTestCase {
         if (random.nextInt(10) == 7) {
           out.writeByte(answer[written++]);
         } else {
-          int chunk = Math.max(random.nextInt(1000), numBytes - written);
+          int chunk = Math.min(random.nextInt(1000), numBytes - written);
           out.writeBytes(answer, written, chunk);
           written += chunk;
         }
@@ -53,7 +53,7 @@ public class TestPagedBytes extends LuceneTestCase {
         if (random.nextInt(10) == 7) {
           verify[read++] = in.readByte();
         } else {
-          int chunk = Math.max(random.nextInt(1000), numBytes - read);
+          int chunk = Math.min(random.nextInt(1000), numBytes - read);
           in.readBytes(verify, read, chunk);
           read += chunk;
         }