moving files around

common/common-io/src/test/java/com/twelvemonkeys/io/FileSeekableStreamTestCase.java

@@ -0,0 +1,72 @@
+package com.twelvemonkeys.io;
+
+import java.io.*;
+
+/**
+ * MemoryCacheSeekableStreamTestCase
+ * <p/>
+ *
+ * @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
+ * @version $Id: //depot/branches/personal/haraldk/twelvemonkeys/release-2/twelvemonkeys-core/src/test/java/com/twelvemonkeys/io/FileSeekableStreamTestCase.java#3 $
+ */
+public class FileSeekableStreamTestCase extends SeekableInputStreamAbstractTestCase {
+    public FileSeekableStreamTestCase(String name) {
+        super(name);
+    }
+
+    protected SeekableInputStream makeInputStream(final InputStream pStream) {
+        try {
+            return new FileSeekableStream(createFileWithContent(pStream));
+        }
+        catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    private File createFileWithContent(final InputStream pStream) throws IOException {
+        File temp = File.createTempFile("tm-io-junit", null);
+        temp.deleteOnExit();
+        OutputStream os = new FileOutputStream(temp);
+        try {
+            FileUtil.copy(pStream, os);
+        }
+        finally {
+            os.close();
+            pStream.close();
+        }
+        return temp;
+    }
+
+    @Override
+    public void testCloseUnderlyingStream() throws IOException {
+        // There is no underlying stream here...
+    }
+
+    public void testCloseUnderlyingFile() throws IOException {
+        final boolean[] closed = new boolean[1];
+
+        File file = createFileWithContent(new ByteArrayInputStream(makeRandomArray(256)));
+
+        RandomAccessFile raf = new RandomAccessFile(file, "r") {
+            @Override
+            public void close() throws IOException {
+                closed[0] = true;
+                super.close();
+            }
+        };
+
+        FileSeekableStream stream = new FileSeekableStream(raf);
+
+        try {
+            FileUtil.read(stream); // Read until EOF
+
+            assertEquals("EOF not reached (test case broken)", -1, stream.read());
+            assertFalse("Underlying stream closed before close", closed[0]);
+        }
+        finally {
+            stream.close();
+        }
+
+        assertTrue("Underlying stream not closed", closed[0]);
+    }
+}