Examples of java.util.zip.DeflaterInputStream.available()

java.util.zip.DeflaterInputStream.available()
Returns 0 after EOF has been reached, otherwise always return 1.
Programs should not count on this method to return the actual number of bytes that could be read without blocking @return zero after the end of the underlying input stream has beenreached, otherwise always returns 1 @throws IOException if an I/O error occurs or if this stream isalready closed

        assertEquals(0, dis.available());
        is = new ByteArrayInputStream(testStr.getBytes("UTF-8"));
        dis = new DeflaterInputStream(is);
        assertEquals(1, dis.available());
        dis.skip(56);
        assertEquals(0, dis.available());
        assertEquals(-1, dis.read(buf, 0, 1024));
        try {
            dis.skip(-1);
            fail("should throw IllegalArgumentException");
        } catch (IllegalArgumentException e) {

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            dis.skip(-1);
            fail("should throw IllegalArgumentException");
        } catch (IllegalArgumentException e) {
            // expected
        }
        assertEquals(0, dis.available());
        // can still skip
        dis.skip(1);
        dis.close();
        try {
            dis.skip(1);

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        }


        is = new ByteArrayInputStream(testStr.getBytes("UTF-8"));
        dis = new DeflaterInputStream(is);
        assertEquals(23, dis.skip(Long.MAX_VALUE));
        assertEquals(0, dis.available());
    }


    /**
     * @tests DeflaterInputStream#DeflaterInputStream(InputStream)
     */

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     * @tests DeflaterInputStream#available()
     */
    public void testAvailable() throws IOException {
        byte[] buf = new byte[1024];
        DeflaterInputStream dis = new DeflaterInputStream(is);
        assertEquals(1, dis.available());
        assertEquals(120, dis.read());
        assertEquals(1, dis.available());
        assertEquals(22, dis.read(buf, 0, 1024));
        assertEquals(1, dis.available());
        assertEquals(-1, dis.read());

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    public void testAvailable() throws IOException {
        byte[] buf = new byte[1024];
        DeflaterInputStream dis = new DeflaterInputStream(is);
        assertEquals(1, dis.available());
        assertEquals(120, dis.read());
        assertEquals(1, dis.available());
        assertEquals(22, dis.read(buf, 0, 1024));
        assertEquals(1, dis.available());
        assertEquals(-1, dis.read());
        assertEquals(0, dis.available());
        dis.close();

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        DeflaterInputStream dis = new DeflaterInputStream(is);
        assertEquals(1, dis.available());
        assertEquals(120, dis.read());
        assertEquals(1, dis.available());
        assertEquals(22, dis.read(buf, 0, 1024));
        assertEquals(1, dis.available());
        assertEquals(-1, dis.read());
        assertEquals(0, dis.available());
        dis.close();
        try {
            dis.available();

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        assertEquals(120, dis.read());
        assertEquals(1, dis.available());
        assertEquals(22, dis.read(buf, 0, 1024));
        assertEquals(1, dis.available());
        assertEquals(-1, dis.read());
        assertEquals(0, dis.available());
        dis.close();
        try {
            dis.available();
            fail("should throw IOException");
        } catch (IOException e) {

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        assertEquals(1, dis.available());
        assertEquals(-1, dis.read());
        assertEquals(0, dis.available());
        dis.close();
        try {
            dis.available();
            fail("should throw IOException");
        } catch (IOException e) {
            // expected
        }
    }

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     * @tests DeflaterInputStream#close()
     */
    public void testClose() throws IOException {
        byte[] buf = new byte[1024];
        DeflaterInputStream dis = new DeflaterInputStream(is);
        assertEquals(1, dis.available());
        dis.close();
        try {
            dis.available();
            fail("should throw IOException");
        } catch (IOException e) {

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    /**
     * @tests DeflaterInputStream#read()
     */
    public void testRead() throws IOException {
        DeflaterInputStream dis = new DeflaterInputStream(is);
        assertEquals(1, dis.available());
        assertEquals(120, dis.read());
        assertEquals(1, dis.available());
        assertEquals(156, dis.read());
        assertEquals(1, dis.available());
        assertEquals(243, dis.read());

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