From aaef3a5165f7cd1dc1a5babb104e328d13859408 Mon Sep 17 00:00:00 2001
From: Niki Roo <niki@nikiroo.be>
Date: Tue, 19 May 2020 21:14:27 +0200
Subject: [PATCH] eplaceInputStream: fix more-than-one replaces

---
 .../utils/streams/ReplaceInputStream.java     |  4 ++--
 .../test_code/ReplaceInputStreamTest.java     | 21 ++++++++++++++++---
 2 files changed, 20 insertions(+), 5 deletions(-)

diff --git a/src/be/nikiroo/utils/streams/ReplaceInputStream.java b/src/be/nikiroo/utils/streams/ReplaceInputStream.java
index 1cc5139b..9f733504 100644
--- a/src/be/nikiroo/utils/streams/ReplaceInputStream.java
+++ b/src/be/nikiroo/utils/streams/ReplaceInputStream.java
@@ -141,11 +141,11 @@ public class ReplaceInputStream extends BufferedInputStream {
 				if (froms[i] != null && froms[i].length > 0
 						&& StreamUtils.startsWith(froms[i], source, spos, slen)) {
 					if (tos[i] != null && tos[i].length > 0) {
-						System.arraycopy(tos[i], 0, buffer, off + spos,
+						System.arraycopy(tos[i], 0, buffer, off + count,
 								tos[i].length);
 						count += tos[i].length;
 					}
-
+					
 					spos += froms[i].length;
 					replaced = true;
 					break;
diff --git a/src/be/nikiroo/utils/test_code/ReplaceInputStreamTest.java b/src/be/nikiroo/utils/test_code/ReplaceInputStreamTest.java
index e6e21121..d08a91ed 100644
--- a/src/be/nikiroo/utils/test_code/ReplaceInputStreamTest.java
+++ b/src/be/nikiroo/utils/test_code/ReplaceInputStreamTest.java
@@ -48,7 +48,7 @@ class ReplaceInputStreamTest extends TestLauncher {
 			}
 		});
 
-		addTest(new TestCase("Lnger replace") {
+		addTest(new TestCase("Longer replace") {
 			@Override
 			public void test() throws Exception {
 				byte[] data = new byte[] { 42, 12, 0, 127 };
@@ -79,17 +79,32 @@ class ReplaceInputStreamTest extends TestLauncher {
 				byte[] data = "I like red".getBytes("UTF-8");
 				ReplaceInputStream in = new ReplaceInputStream(
 						new ByteArrayInputStream(data),
-						"red".getBytes("UTF-8"), "blue".getBytes("UTF-8"));
+						"red", "blue");
 
 				checkArrays(this, "FIRST", in, "I like blue".getBytes("UTF-8"));
 
 				data = "I like blue".getBytes("UTF-8");
 				in = new ReplaceInputStream(new ByteArrayInputStream(data),
-						"blue".getBytes("UTF-8"), "red".getBytes("UTF-8"));
+						"blue", "red");
 
 				checkArrays(this, "FIRST", in, "I like red".getBytes("UTF-8"));
 			}
 		});
+		
+		addTest(new TestCase("Multiple replaces") {
+			@Override
+			public void test() throws Exception {
+				byte[] data = "I like red".getBytes("UTF-8");
+				ReplaceInputStream in = new ReplaceInputStream(
+						new ByteArrayInputStream(data), //
+						new String[] {"like", "red"}, //
+						new String[] {"dislike", "green"} //
+				);
+
+				String result = new String(IOUtils.toByteArray(in), "UTF-8");
+				assertEquals("I dislike green", result);
+			}
+		});
 	}
 
 	static void checkArrays(TestCase test, String prefix, InputStream in,
-- 
2.27.0