Adds Unit test to see, if JARs are changing if they are not modified
diff --git a/tomee-patch-core/pom.xml b/tomee-patch-core/pom.xml
index d8b78e8..d6b7664 100644
--- a/tomee-patch-core/pom.xml
+++ b/tomee-patch-core/pom.xml
@@ -59,17 +59,17 @@
<dependency>
<groupId>org.tomitribe</groupId>
<artifactId>tomitribe-crest</artifactId>
- <version>0.14</version>
+ <version>0.19</version>
</dependency>
<dependency>
<groupId>org.tomitribe</groupId>
<artifactId>tomitribe-crest-xbean</artifactId>
- <version>0.14</version>
+ <version>0.19</version>
</dependency>
<dependency>
<groupId>org.tomitribe</groupId>
<artifactId>tomitribe-util</artifactId>
- <version>1.3.13</version>
+ <version>1.4.4</version>
</dependency>
<dependency>
<groupId>org.tomitribe</groupId>
diff --git a/tomee-patch-core/src/test/java/org/apache/tomee/patch/core/DontModifyJarsTest.java b/tomee-patch-core/src/test/java/org/apache/tomee/patch/core/DontModifyJarsTest.java
new file mode 100644
index 0000000..721168d
--- /dev/null
+++ b/tomee-patch-core/src/test/java/org/apache/tomee/patch/core/DontModifyJarsTest.java
@@ -0,0 +1,120 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.tomee.patch.core;
+
+import org.junit.Test;
+import org.tomitribe.util.Archive;
+import org.tomitribe.util.Hex;
+import org.tomitribe.util.IO;
+
+import java.io.*;
+import java.security.DigestInputStream;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.ArrayList;
+import java.util.Enumeration;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipFile;
+
+import static org.junit.Assert.*;
+
+public class DontModifyJarsTest {
+
+ public static final int DEFAULT_BUFFER_SIZE = 8192;
+
+ @Test
+ public void transformWithoutModification() throws Exception {
+ transformWithoutModificationHelper(false);
+ }
+
+ @Test
+ public void transformWithoutModificationSkipTransform() throws Exception {
+ transformWithoutModificationHelper(true);
+ }
+
+ public void transformWithoutModificationHelper(boolean skipTransform) throws Exception {
+
+ final String jarName = "bcprov-jdk15on-1.69.jar";
+ final File testJar = Archive.archive()
+ .add("index.txt", "red,green,blue")
+ .toJar();
+
+ final String testJarHash = sha512(testJar);
+
+ final File zipFile = Archive.archive()
+ .add("README.txt", "hi")
+ .add(jarName, testJar).toJar();
+
+ Transformation transformation = new Transformation(new ArrayList<>(), new File("does not exist"), null, null, null, new NullLog(), skipTransform);
+ File transformedZip = transformation.transformArchive(zipFile);
+
+ final String testJarHashTransformed = sha512FromJarInsideZip(jarName, transformedZip);
+ assertEquals("SHA512 checksum shouldn't change if nothing is modified", testJarHash, testJarHashTransformed);
+
+ assertEquals("SHA512 checksum shouldn't change if nothing is modified", sha512(zipFile), sha512(transformedZip));
+ }
+
+
+ private String sha512FromJarInsideZip(final String name, final File transformedZip) throws IOException {
+ try (ZipFile zip = new ZipFile(transformedZip)) {
+ Enumeration<? extends ZipEntry> content = zip.entries();
+ for (Enumeration<? extends ZipEntry> f = content; f.hasMoreElements(); ) {
+ ZipEntry entry = f.nextElement();
+
+ if (entry.getName().equals(name)) {
+ File jar = new File(entry.getName());
+ copyInputStreamToFile(zip.getInputStream(entry), jar);
+ jar.deleteOnExit();
+ return sha512(jar);
+ }
+ }
+ }
+ return null;
+ }
+
+ private static String sha512(final File file) {
+ return hash("SHA-512", file);
+ }
+
+ private static String hash(final String type, File file) {
+ try {
+ final MessageDigest digest = MessageDigest.getInstance(type);
+ try (final InputStream inputStream = IO.read(file)) {
+ final DigestInputStream digestInputStream = new DigestInputStream(inputStream, digest);
+ IO.copy(digestInputStream, IO.IGNORE_OUTPUT);
+ return Hex.toString(digest.digest());
+ }
+ } catch (NoSuchAlgorithmException e) {
+ throw new IllegalStateException("Unknown algorithm " + type, e);
+ } catch (IOException e) {
+ throw new UncheckedIOException(e);
+ }
+ }
+
+ private static void copyInputStreamToFile(InputStream inputStream, File file) throws IOException {
+ try (FileOutputStream outputStream = new FileOutputStream(file, false)) {
+ int read;
+ byte[] bytes = new byte[DEFAULT_BUFFER_SIZE];
+ while ((read = inputStream.read(bytes)) != -1) {
+ outputStream.write(bytes, 0, read);
+ }
+ }
+
+ }
+
+}
+
