SLING-4075 - Improve test coverage of SCD
* Add ByteBufferBackedInputStream unit test coverage
diff --git a/src/test/java/org/apache/sling/distribution/util/impl/ByteBufferBackedInputStreamTest.java b/src/test/java/org/apache/sling/distribution/util/impl/ByteBufferBackedInputStreamTest.java
new file mode 100644
index 0000000..3d1f3b3
--- /dev/null
+++ b/src/test/java/org/apache/sling/distribution/util/impl/ByteBufferBackedInputStreamTest.java
@@ -0,0 +1,79 @@
+/*
+ * 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.sling.distribution.util.impl;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+
+import org.junit.Test;
+
+import static java.io.File.createTempFile;
+import static java.lang.System.arraycopy;
+import static java.lang.System.currentTimeMillis;
+import static java.lang.String.format;
+import static java.nio.ByteBuffer.wrap;
+import static org.junit.Assert.assertEquals;
+
+public class ByteBufferBackedInputStreamTest {
+
+ private byte[] DATA = new byte[]{0x00, 0x01, 0x02};
+
+ @Test
+ public void testRead() throws Exception {
+ testRead(new ByteBufferBackedInputStream(
+ wrap(subData(0, 3)),
+ write(subData(3, 0))));
+ testRead(new ByteBufferBackedInputStream(
+ wrap(subData(0, 1)),
+ write(subData(1, 2))));
+ testRead(new ByteBufferBackedInputStream(
+ wrap(subData(0, 2)),
+ write(subData(2, 1))));
+ testRead(new ByteBufferBackedInputStream(
+ wrap(subData(0, 0)),
+ write(subData(0, 3))));
+ }
+
+ private void testRead(ByteBufferBackedInputStream bbisData)
+ throws IOException {
+ assertEquals(DATA[0], bbisData.read());
+ assertEquals(DATA[1], bbisData.read());
+ assertEquals(DATA[2], bbisData.read());
+ assertEquals(-1, bbisData.read());
+ }
+
+ private byte[] subData(int offset, int length) {
+ byte[] sub = new byte[length];
+ arraycopy(DATA, offset, sub, 0, length);
+ return sub;
+ }
+
+ private File write(byte[] data) throws IOException {
+ File file = createTempFile("output", format(".%s.bin", currentTimeMillis()));
+ FileOutputStream fos = new FileOutputStream(file);
+ try {
+ fos.write(data);
+ fos.flush();
+ } finally {
+ fos.close();
+ }
+ return file;
+ }
+}
\ No newline at end of file
