/* 
 * 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.harmony.tests.java.util.zip;

import java.io.BufferedInputStream;
import java.io.ByteArrayOutputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.zip.Adler32;
import java.util.zip.DataFormatException;
import java.util.zip.Deflater;
import java.util.zip.DeflaterOutputStream;
import java.util.zip.Inflater;
import java.util.zip.ZipException;
import libcore.junit.junit3.TestCaseWithRules;
import libcore.junit.util.ResourceLeakageDetector;
import org.junit.Rule;
import org.junit.rules.TestRule;
import tests.support.resource.Support_Resources;

public class InflaterTest extends TestCaseWithRules {
    @Rule
    public TestRule guardRule = ResourceLeakageDetector.getRule();

    byte outPutBuff1[] = new byte[500];

    byte outPutDiction[] = new byte[500];

    /**
     * java.util.zip.Inflater#end()
     */
    public void test_end() throws Exception {
        // test method of java.util.zip.inflater.end()
        byte byteArray[] = { 5, 2, 3, 7, 8 };

        int r = 0;
        Inflater inflate = new Inflater();
        inflate.setInput(byteArray);
        inflate.end();

        try {
            inflate.reset();
        } catch (NullPointerException expected) {
            // Expected
        }

        Inflater i = new Inflater();
        i.end();
        // check for exception
        i.end();
    }

    /**
     * java.util.zip.Inflater#finished()
     */
    public void test_finished() {
        // test method of java.util.zip.inflater.finished()
        byte byteArray[] = { 1, 3, 4, 7, 8, 'e', 'r', 't', 'y', '5' };
        Inflater inflate = new Inflater(false);
        byte outPutInf[] = new byte[500];
        try {
            while (!(inflate.finished())) {
                if (inflate.needsInput()) {
                    inflate.setInput(outPutBuff1);
                }

                inflate.inflate(outPutInf);
            }
            assertTrue(
                    "the method finished() returned false when no more data needs to be decompressed",
                    inflate.finished());
        } catch (DataFormatException e) {
            fail("Invalid input to be decompressed");
        }
        inflate.end();
        for (int i = 0; i < byteArray.length; i++) {
            assertEquals(
                    "Final decompressed data does not equal the original data",
                    outPutInf[i], byteArray[i]);
        }
        assertEquals("final decompressed data contained more bytes than original - finished()",
                0, outPutInf[byteArray.length]);
    }

    /**
     * java.util.zip.Inflater#getAdler()
     */
    public void test_getAdler() {
        // test method of java.util.zip.inflater.getAdler()
        byte dictionaryArray[] = { 'e', 'r', 't', 'a', 'b', 2, 3 };

        Inflater inflateDiction = new Inflater();
        inflateDiction.setInput(outPutDiction);
        if (inflateDiction.needsDictionary() == true) {
            // getting the checkSum value through the Adler32 class
            Adler32 adl = new Adler32();
            adl.update(dictionaryArray);
            long checkSumR = adl.getValue();
            assertEquals(
                    "the checksum value returned by getAdler() is not the same as the checksum returned by creating the adler32 instance",
                    inflateDiction.getAdler(), checkSumR);
        }
        inflateDiction.end();
    }

    /**
     * java.util.zip.Inflater#getRemaining()
     */
    public void test_getRemaining() {
        // test method of java.util.zip.inflater.getRemaining()
        byte byteArray[] = { 1, 3, 5, 6, 7 };
        Inflater inflate = new Inflater();
        assertEquals("upon creating an instance of inflate, getRemaining returned a non zero value",
                0, inflate.getRemaining());
        inflate.setInput(byteArray);
        assertTrue(
                "getRemaining returned zero when there is input in the input buffer",
                inflate.getRemaining() != 0);
        inflate.end();
    }

    /**
     * java.util.zip.Inflater#getTotalIn()
     */
    public void test_getTotalIn() {
        // test method of java.util.zip.inflater.getTotalIn()
        // creating the decompressed data
        byte outPutBuf[] = new byte[500];
        byte byteArray[] = { 1, 3, 4, 7, 8 };
        byte outPutInf[] = new byte[500];
        int x = 0;
        Deflater deflate = new Deflater(1);
        deflate.setInput(byteArray);
        while (!(deflate.needsInput())) {
            x += deflate.deflate(outPutBuf, x, outPutBuf.length - x);
        }
        deflate.finish();
        while (!(deflate.finished())) {
            x = x + deflate.deflate(outPutBuf, x, outPutBuf.length - x);
        }

        Inflater inflate = new Inflater();
        try {
            while (!(inflate.finished())) {
                if (inflate.needsInput()) {
                    inflate.setInput(outPutBuf);
                }

                inflate.inflate(outPutInf);
            }
        } catch (DataFormatException e) {
            fail("Input to inflate is invalid or corrupted - getTotalIn");
        }
        // System.out.print(deflate.getTotalOut() + " " + inflate.getTotalIn());
        assertEquals(
                "the total byte in outPutBuf did not equal the byte returned in getTotalIn",
                deflate.getTotalOut(), inflate.getTotalIn());
        deflate.end();
        inflate.end();

        Inflater inflate2 = new Inflater();
        int offSet = 0;// seems only can start as 0
        int length = 4;
        try {
            // seems no while loops allowed
            if (inflate2.needsInput()) {
                inflate2.setInput(outPutBuff1, offSet, length);
            }

            inflate2.inflate(outPutInf);

        } catch (DataFormatException e) {
            fail("Input to inflate is invalid or corrupted - getTotalIn");
        }
        // System.out.print(inflate2.getTotalIn() + " " + length);
        assertEquals(
                "total byte dictated by length did not equal byte returned in getTotalIn",
                length, inflate2.getTotalIn());
        inflate2.end();
    }

    /**
     * java.util.zip.Inflater#getTotalOut()
     */
    public void test_getTotalOut() {
        // test method of java.util.zip.inflater.Inflater()
        // creating the decompressed data
        byte outPutBuf[] = new byte[500];
        byte byteArray[] = { 1, 3, 4, 7, 8 };
        int y = 0;
        int x = 0;
        Deflater deflate = new Deflater(1);
        deflate.setInput(byteArray);
        while (!(deflate.needsInput())) {
            x += deflate.deflate(outPutBuf, x, outPutBuf.length - x);
        }
        deflate.finish();
        while (!(deflate.finished())) {
            x = x + deflate.deflate(outPutBuf, x, outPutBuf.length - x);
        }

        Inflater inflate = new Inflater();
        byte outPutInf[] = new byte[500];
        try {
            while (!(inflate.finished())) {
                if (inflate.needsInput()) {
                    inflate.setInput(outPutBuf);
                }

                y += inflate.inflate(outPutInf);
            }
        } catch (DataFormatException e) {
            fail("Input to inflate is invalid or corrupted - getTotalIn");
        }

        assertEquals(
                "the sum of the bytes returned from inflate does not equal the bytes of getTotalOut()",
                inflate.getTotalOut(), y);
        assertEquals(
                "the total number of bytes to be compressed does not equal the total bytes decompressed",
                deflate.getTotalIn(), inflate.getTotalOut());

        // testing inflate(byte,int,int)
        inflate.reset();
        y = 0;
        int offSet = 0;// seems only can start as 0
        int length = 4;
        try {
            while (!(inflate.finished())) {
                if (inflate.needsInput()) {
                    inflate.setInput(outPutBuf);
                }

                y += inflate.inflate(outPutInf, offSet, length);
            }
        } catch (DataFormatException e) {
            System.out
                    .println("Input to inflate is invalid or corrupted - getTotalIn");
        }
        assertEquals(
                "the sum of the bytes returned from inflate does not equal the bytes of getTotalOut()",
                y, inflate.getTotalOut());
        assertEquals(
                "the total number of bytes to be compressed does not equal the total bytes decompressed",
                deflate.getTotalIn(), inflate.getTotalOut());

        deflate.end();
        inflate.end();
    }

    /**
     * java.util.zip.Inflater#inflate(byte[])
     */
    public void test_inflate$B() {
        // test method of java.util.zip.inflater.inflate(byte)

        byte byteArray[] = { 1, 3, 4, 7, 8, 'e', 'r', 't', 'y', '5' };
        byte outPutInf[] = new byte[500];
        try {
            Inflater inflate = new Inflater();
            while (!(inflate.finished())) {
                if (inflate.needsInput()) {
                    inflate.setInput(outPutBuff1);
                }
                inflate.inflate(outPutInf);
            }
            inflate.end();
        } catch (DataFormatException e) {
            fail("Invalid input to be decompressed");
        }
        for (int i = 0; i < byteArray.length; i++) {
            assertEquals(
                    "Final decompressed data does not equal the original data",
                    byteArray[i], outPutInf[i]);
        }
        assertEquals("final decompressed data contained more bytes than original - inflateB",
                0, outPutInf[byteArray.length]);
        // testing for an empty input array
        byte outPutBuf[] = new byte[500];
        byte emptyArray[] = new byte[11];
        int x = 0;
        Deflater defEmpty = new Deflater(3);
        defEmpty.setInput(emptyArray);
        while (!(defEmpty.needsInput())) {
            x += defEmpty.deflate(outPutBuf, x, outPutBuf.length - x);
        }
        defEmpty.finish();
        while (!(defEmpty.finished())) {
            x += defEmpty.deflate(outPutBuf, x, outPutBuf.length - x);
        }
        assertEquals(
                "the total number of byte from deflate did not equal getTotalOut - inflate(byte)",
                x, defEmpty.getTotalOut());
        assertEquals(
                "the number of input byte from the array did not correspond with getTotalIn - inflate(byte)",
                emptyArray.length, defEmpty.getTotalIn());
        defEmpty.end();
        try {
            Inflater infEmpty = new Inflater();
            while (!(infEmpty.finished())) {
                if (infEmpty.needsInput()) {
                    infEmpty.setInput(outPutBuf);
                }
                infEmpty.inflate(outPutInf);
            }
            infEmpty.end();
        } catch (DataFormatException e) {
            fail("Invalid input to be decompressed");
        }
        for (int i = 0; i < emptyArray.length; i++) {
            assertEquals(
                    "Final decompressed data does not equal the original data",
                    emptyArray[i], outPutInf[i]);
            assertEquals("Final decompressed data does not equal zero",
                    0, outPutInf[i]);
        }
        assertEquals("Final decompressed data contains more element than original data",
                0, outPutInf[emptyArray.length]);
    }

    public void test_inflate$B1() {
        byte codedData[] = {
                120, -38, 75, -54, 73, -52, 80, 40, 46, 41, -54, -52, 75, 87,
                72, -50, -49, 43, 73, -52, -52, 43, 86, 72, 2, 10, 34, 99,
                -123, -60, -68, 20, -80, 32, 0, -101, -69, 17, 84 };
        String codedString = "blah string contains blahblahblahblah and blah";

        Inflater infl1 = new Inflater();
        Inflater infl2 = new Inflater();

        byte[] result = new byte[100];
        int decLen = 0;

        infl1.setInput(codedData, 0, codedData.length);
        try {
            decLen = infl1.inflate(result);
        } catch (DataFormatException e) {
            fail("Unexpected DataFormatException");
        }

        infl1.end();
        assertEquals(codedString, new String(result, 0, decLen));
        codedData[5] = 0;

        infl2.setInput(codedData, 0, codedData.length);
        try {
            decLen = infl2.inflate(result);
            fail("Expected DataFormatException");
        } catch (DataFormatException e) {
            // expected
        }

        infl2.end();
    }

    /**
     * java.util.zip.Inflater#inflate(byte[], int, int)
     */
    public void test_inflate$BII() {
        // test method of java.util.zip.inflater.inflate(byte,int,int)

        byte byteArray[] = { 1, 3, 4, 7, 8, 'e', 'r', 't', 'y', '5' };
        byte outPutInf[] = new byte[100];
        int y = 0;
        Inflater inflate = new Inflater();
        try {
            while (!(inflate.finished())) {
                if (inflate.needsInput()) {
                    assertEquals(0, inflate.inflate(outPutInf, 0, 1));
                    inflate.setInput(outPutBuff1);
                }
                y += inflate.inflate(outPutInf, y, outPutInf.length - y);
            }
        } catch (DataFormatException e) {
            fail("Invalid input to be decompressed");
        }
        for (int i = 0; i < byteArray.length; i++) {
            assertEquals(
                    "Final decompressed data does not equal the original data",
                    byteArray[i], outPutInf[i]);
        }
        assertEquals("final decompressed data contained more bytes than original - inflateB",
                0, outPutInf[byteArray.length]);

        // test boundary checks
        inflate.reset();
        int r = 0;
        int offSet = 0;
        int lengthError = 101;
        try {
            if (inflate.needsInput()) {
                inflate.setInput(outPutBuff1);
            }
            inflate.inflate(outPutInf, offSet, lengthError);

        } catch (DataFormatException e) {
            fail("Invalid input to be decompressed");
        } catch (ArrayIndexOutOfBoundsException e) {
            r = 1;
        }
        assertEquals("out of bounds error did not get caught", 1, r);

        try {
            assertEquals(0, inflate.inflate(outPutInf, offSet, 0));
        } catch (DataFormatException e) {
            fail("Invalid input to be decompressed");
        }
        inflate.end();
        try {
            inflate.inflate(outPutInf, offSet, 1);
            fail("NullPointerException expected");
        } catch (DataFormatException e) {
            fail("Invalid input to be decompressed");
        } catch (NullPointerException expected) {
            // Expected
        }
    }

    public void test_inflate$BII1() {
        byte codedData[] = {
                120, -38, 75, -54, 73, -52, 80, 40, 46, 41, -54, -52, 75, 87,
                72, -50, -49, 43, 73, -52, -52, 43, 86, 72, 2, 10, 34, 99,
                -123, -60, -68, 20, -80, 32, 0, -101, -69, 17, 84 };
        String codedString = "blah string";

        Inflater infl1 = new Inflater();
        Inflater infl2 = new Inflater();

        byte[] result = new byte[100];
        int decLen = 0;

        infl1.setInput(codedData, 0, codedData.length);
        try {
            decLen = infl1.inflate(result, 10, 11);
        } catch (DataFormatException e) {
            fail("Unexpected DataFormatException");
        }

        infl1.end();
        assertEquals(codedString, new String(result, 10, decLen));
        codedData[5] = 0;

        infl2.setInput(codedData, 0, codedData.length);
        try {
            decLen = infl2.inflate(result, 10, 11);
            fail("Expected DataFormatException");
        } catch (DataFormatException e) {
            // expected
        }

        infl2.end();
    }

    /*
     * Regression test for HARMONY-6637
     */
    public void testInflateZero() throws Exception {
        ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
        DeflaterOutputStream deflaterOutputStream = new DeflaterOutputStream(
                byteArrayOutputStream);
        deflaterOutputStream.close();
        byte[] input = byteArrayOutputStream.toByteArray();

        Inflater inflater = new Inflater();
        inflater.setInput(input);
        byte[] buffer = new byte[0];
        int numRead = 0;
        while (!inflater.finished()) {
            int inflatedChunkSize = inflater.inflate(buffer, numRead,
                    buffer.length - numRead);
            numRead += inflatedChunkSize;
        }
        inflater.end();
    }

    /**
     * java.util.zip.Inflater#Inflater()
     */
    public void test_Constructor() {
        // test method of java.util.zip.inflater.Inflater()
        Inflater inflate = new Inflater();
        assertNotNull("failed to create the instance of inflater", inflate);
        inflate.end();
    }

    /**
     * java.util.zip.Inflater#Inflater(boolean)
     */
    public void test_ConstructorZ() {
        // test method of java.util.zip.inflater.Inflater(boolean)
        // note does not throw exception if deflater has a header, but inflater
        // doesn't or vice versa.
        byte byteArray[] = { 1, 3, 4, 7, 8, 'e', 'r', 't', 'y', '5' };
        Inflater inflate = new Inflater(true);
        assertNotNull("failed to create the instance of inflater", inflate);
        byte outPutInf[] = new byte[500];
        int r = 0;
        try {
            while (!(inflate.finished())) {
                if (inflate.needsInput()) {
                    inflate.setInput(outPutBuff1);
                }

                inflate.inflate(outPutInf);
            }
            for (int i = 0; i < byteArray.length; i++) {
                assertEquals("the output array from inflate should contain 0 because the"
                                + " header of inflate and deflate did not match, but this failed",
                        0, outPutBuff1[i]);
            }
        } catch (DataFormatException e) {
            r = 1;
        }
        assertEquals("Error: exception should be thrown because of header inconsistency", 1, r);
        inflate.end();
    }

    /**
     * java.util.zip.Inflater#needsDictionary()
     */
    public void test_needsDictionary() {
        // test method of java.util.zip.inflater.needsDictionary()
        // note: this flag is set after inflate is called
        byte outPutInf[] = new byte[500];

        // testing with dictionary set.
        Inflater inflateDiction = new Inflater();
        if (inflateDiction.needsInput()) {
            inflateDiction.setInput(outPutDiction);
        }
        try {
            assertEquals("should return 0 because needs dictionary",
                    0, inflateDiction.inflate(outPutInf));
        } catch (DataFormatException e) {
            fail("Should not cause exception");
        }
        assertTrue(
                "method needsDictionary returned false when dictionary was used in deflater",
                inflateDiction.needsDictionary());
        inflateDiction.end();

        // testing without dictionary
        try {
            Inflater inflate = new Inflater();
            inflate.setInput(outPutBuff1);
            inflate.inflate(outPutInf);
            assertFalse(
                    "method needsDictionary returned true when dictionary was not used in deflater",
                    inflate.needsDictionary());
            inflate.end();
        } catch (DataFormatException e) {
            fail(
                    "Input to inflate is invalid or corrupted - needsDictionary");
        }

        // Regression test for HARMONY-86
        Inflater inf = new Inflater();
        assertFalse(inf.needsDictionary());
        assertEquals(0, inf.getTotalIn());
        assertEquals(0, inf.getTotalOut());
        assertEquals(0, inf.getBytesRead());
        assertEquals(0, inf.getBytesWritten());
        assertEquals(1, inf.getAdler());
        inf.end();
    }

    /**
     * java.util.zip.Inflater#needsInput()
     */
    public void test_needsInput() {
        // test method of java.util.zip.inflater.needsInput()
        Inflater inflate = new Inflater();
        assertTrue(
                "needsInput give the wrong boolean value as a result of no input buffer",
                inflate.needsInput());

        byte byteArray[] = { 2, 3, 4, 't', 'y', 'u', 'e', 'w', 7, 6, 5, 9 };
        inflate.setInput(byteArray);
        assertFalse(
                "methodNeedsInput returned true when the input buffer is full",
                inflate.needsInput());

        inflate.reset();
        byte byteArrayEmpty[] = new byte[0];
        inflate.setInput(byteArrayEmpty);
        assertTrue(
                "needsInput give wrong boolean value as a result of an empty input buffer",
                inflate.needsInput());
        inflate.end();
    }

    /**
     * java.util.zip.Inflater#reset()
     */
    public void test_reset() {
        // test method of java.util.zip.inflater.reset()
        byte byteArray[] = { 1, 3, 4, 7, 8, 'e', 'r', 't', 'y', '5' };
        byte outPutInf[] = new byte[100];
        int y = 0;
        Inflater inflate = new Inflater();
        try {
            while (!(inflate.finished())) {
                if (inflate.needsInput()) {
                    inflate.setInput(outPutBuff1);
                }
                y += inflate.inflate(outPutInf, y, outPutInf.length - y);
            }
        } catch (DataFormatException e) {
            fail("Invalid input to be decompressed");
        }
        for (int i = 0; i < byteArray.length; i++) {
            assertEquals(
                    "Final decompressed data does not equal the original data",
                    byteArray[i], outPutInf[i]);
        }
        assertEquals("final decompressed data contained more bytes than original - reset",
                0, outPutInf[byteArray.length]);

        // testing that resetting the inflater will also return the correct
        // decompressed data

        inflate.reset();
        try {
            while (!(inflate.finished())) {
                if (inflate.needsInput()) {
                    inflate.setInput(outPutBuff1);
                }
                inflate.inflate(outPutInf);
            }
        } catch (DataFormatException e) {
            fail("Invalid input to be decompressed");
        }
        inflate.end();
        for (int i = 0; i < byteArray.length; i++) {
            assertEquals(
                    "Final decompressed data does not equal the original data",
                    byteArray[i], outPutInf[i]);
        }
        assertEquals("final decompressed data contained more bytes than original - reset",
                0, outPutInf[byteArray.length]);

    }

    /**
     * java.util.zip.Inflater#setDictionary(byte[])
     */
    public void test_setDictionary$B() {
        //FIXME This test doesn't pass in Harmony classlib or Sun 5.0_7 RI
        /*
		// test method of java.util.zip.inflater.setDictionary(byte)
		byte dictionaryArray[] = { 'e', 'r', 't', 'a', 'b', 2, 3 };
		byte byteArray[] = { 4, 5, 3, 2, 'a', 'b', 6, 7, 8, 9, 0, 's', '3',
				'w', 'r' };

		byte outPutInf[] = new byte[100];

		// trying to inflate without setting a dictionary

		Inflater inflateWO = new Inflater();
		byte outPutInf2[] = new byte[100];
		int r = 0;
		try {
			while (!(inflateWO.finished())) {
				if (inflateWO.needsInput()) {
					inflateWO.setInput(outPutDiction);
				}
				inflateWO.inflate(outPutInf2);
			}
		} catch (DataFormatException e) {
			r = 1;
		}
		assertEquals("invalid input to be decompressed due to dictionary not set",
				1, r);
		// now setting the dictionary in inflater
		Inflater inflate = new Inflater();
		try {
			while (!(inflate.finished())) {
				if (inflate.needsInput()) {
					inflate.setInput(outPutDiction);
				}
				if (inflate.needsDictionary()) {
					inflate.setDictionary(dictionaryArray);
				}
				inflate.inflate(outPutInf);
			}
		} catch (DataFormatException e) {
			fail("Invalid input to be decompressed");
		}
		for (int i = 0; i < byteArray.length; i++) {
			assertTrue(
					"Final decompressed data does not equal the original data",
					byteArray[i] == outPutInf[i]);
		}
		assertEquals("final decompressed data contained more bytes than original - deflateB",
				0, outPutInf[byteArray.length]);
                */
    }

    /**
     * java.util.zip.Inflater#setInput(byte[])
     */
    public void test_setInput$B() {
        // test method of java.util.zip.inflater.setInput(byte)
        byte byteArray[] = { 2, 3, 4, 't', 'y', 'u', 'e', 'w', 7, 6, 5, 9 };
        Inflater inflate = new Inflater();
        inflate.setInput(byteArray);
        assertTrue("setInputB did not deliver any byte to the input buffer",
                inflate.getRemaining() != 0);
        inflate.end();
    }

    /**
     * java.util.zip.Inflater#setInput(byte[], int, int)
     */
    public void test_setInput$BII() {
        // test method of java.util.zip.inflater.setInput(byte,int,int)
        byte byteArray[] = { 2, 3, 4, 't', 'y', 'u', 'e', 'w', 7, 6, 5, 9 };
        int offSet = 6;
        int length = 6;
        Inflater inflate = new Inflater();
        inflate.setInput(byteArray, offSet, length);
        assertEquals(
                "setInputBII did not deliver the right number of bytes to the input buffer",
                length, inflate.getRemaining());
        // boundary check
        inflate.reset();
        int r = 0;
        try {
            inflate.setInput(byteArray, 100, 100);
        } catch (ArrayIndexOutOfBoundsException e) {
            r = 1;
        }
        inflate.end();
        assertEquals("boundary check is not present for setInput", 1, r);
    }

    @Override
    protected void setUp() {
        try {
            java.io.InputStream infile = Support_Resources
                    .getStream("hyts_compressD.bin");
            BufferedInputStream inflatIP = new BufferedInputStream(infile);
            inflatIP.read(outPutBuff1, 0, outPutBuff1.length);
            inflatIP.close();

            java.io.InputStream infile2 = Support_Resources
                    .getStream("hyts_compDiction.bin");
            BufferedInputStream inflatIP2 = new BufferedInputStream(infile2);
            inflatIP2.read(outPutDiction, 0, outPutDiction.length);
            inflatIP2.close();

        } catch (FileNotFoundException e) {
            fail(
                    "input file to test InflaterInputStream constructor is not found");
        } catch (ZipException e) {
            fail(
                    "read() threw an zip exception while testing constructor");
        } catch (IOException e) {
            fail("read() threw an exception while testing constructor");
        }
    }

    @Override
    protected void tearDown() {
    }

    /**
     * java.util.zip.Deflater#getBytesRead()
     */
    public void test_getBytesRead() throws DataFormatException,
            UnsupportedEncodingException {
        // Regression test for HARMONY-158
        Deflater def = new Deflater();
        Inflater inf = new Inflater();
        assertEquals(0, def.getTotalIn());
        assertEquals(0, def.getTotalOut());
        assertEquals(0, def.getBytesRead());
        // Encode a String into bytes
        String inputString = "blahblahblah??";
        byte[] input = inputString.getBytes("UTF-8");

        // Compress the bytes
        byte[] output = new byte[100];
        def.setInput(input);
        def.finish();
        def.deflate(output);
        inf.setInput(output);
        int compressedDataLength = inf.inflate(input);
        assertEquals(16, inf.getTotalIn());
        assertEquals(compressedDataLength, inf.getTotalOut());
        assertEquals(16, inf.getBytesRead());
        def.end();
        inf.end();
    }

    /**
     * java.util.zip.Deflater#getBytesRead()
     */
    public void test_getBytesWritten() throws DataFormatException, UnsupportedEncodingException {
        // Regression test for HARMONY-158
        Deflater def = new Deflater();
        Inflater inf = new Inflater();
        assertEquals(0, def.getTotalIn());
        assertEquals(0, def.getTotalOut());
        assertEquals(0, def.getBytesWritten());
        // Encode a String into bytes
        String inputString = "blahblahblah??";
        byte[] input = inputString.getBytes("UTF-8");

        // Compress the bytes
        byte[] output = new byte[100];
        def.setInput(input);
        def.finish();
        def.deflate(output);
        inf.setInput(output);
        int compressedDataLength = inf.inflate(input);
        assertEquals(16, inf.getTotalIn());
        assertEquals(compressedDataLength, inf.getTotalOut());
        assertEquals(14, inf.getBytesWritten());
        def.end();
        inf.end();
    }

    /**
     * java.util.zip.Deflater#inflate(byte[], int, int)
     */
    public void testInflate() throws Exception {
        // Regression for HARMONY-81 
        Inflater inf = new Inflater();
        int res = inf.inflate(new byte[0], 0, 0);
        inf.end();

        assertEquals(0, res);

        // Regression for HARMONY-2508
        Inflater inflater = new Inflater();
        byte[] b = new byte[1024];
        assertEquals(0, inflater.inflate(b));
        inflater.end();

        // Regression for HARMONY-2510
        inflater = new Inflater();
        inflater.setInput(new byte[] { -1 });
        try {
            inflater.inflate(b);

            // The RI detects malformed data on the malformed input { -1 }. Both
            // this implementation and the native zlib API return "need input"
            // on that data. This is an error if the stream is exhausted, but
            // not one that results in an exception in the Inflater API.
            assertTrue(inflater.needsInput());
        } catch (DataFormatException e) {
            // expected
        }
        inflater.end();

        inflater = new Inflater();
        inflater.setInput(new byte[] { -1, -1, -1 });
        try {
            inflater.inflate(b);
        } catch (DataFormatException e) {
            // expected
        }
        inflater.end();
    }

    public void testSetDictionary$B() throws Exception {
        int i = 0;
        String inputString = "blah string contains blahblahblahblah and blah";
        String dictionary1 = "blah";
        String dictionary2 = "1234";

        byte[] outputNo = new byte[100];
        byte[] output1 = new byte[100];
        byte[] output2 = new byte[100];
        Deflater defDictNo = new Deflater(9);
        Deflater defDict1 = new Deflater(9);
        Deflater defDict2 = new Deflater(9);

        defDict1.setDictionary(dictionary1.getBytes());
        defDict2.setDictionary(dictionary2.getBytes());

        defDictNo.setInput(inputString.getBytes());
        defDict1.setInput(inputString.getBytes());
        defDict2.setInput(inputString.getBytes());

        defDictNo.finish();
        defDict1.finish();
        defDict2.finish();

        int dataLenNo = defDictNo.deflate(outputNo);
        int dataLen1 = defDict1.deflate(output1);
        int dataLen2 = defDict2.deflate(output2);

        defDictNo.end();
        defDict1.end();
        defDict2.end();

        boolean passNo1 = false;
        boolean passNo2 = false;
        boolean pass12 = false;

        for (i = 0; i < (dataLenNo < dataLen1 ? dataLenNo : dataLen1); i++) {
            if (outputNo[i] != output1[i]) {
                passNo1 = true;
                break;
            }
        }
        for (i = 0; i < (dataLenNo < dataLen1 ? dataLenNo : dataLen2); i++) {
            if (outputNo[i] != output2[i]) {
                passNo2 = true;
                break;
            }
        }
        for (i = 0; i < (dataLen1 < dataLen2 ? dataLen1 : dataLen2); i++) {
            if (output1[i] != output2[i]) {
                pass12 = true;
                break;
            }
        }

        assertTrue(
                "Compressed data the same for stream with dictionary and without it.",
                passNo1);
        assertTrue(
                "Compressed data the same for stream with dictionary and without it.",
                passNo2);
        assertTrue(
                "Compressed data the same for stream with different dictionaries.",
                pass12);

        Inflater inflNo = new Inflater();
        Inflater infl1 = new Inflater();
        Inflater infl2 = new Inflater();

        byte[] result = new byte[100];
        int decLen;

        inflNo.setInput(outputNo, 0, dataLenNo);
        decLen = inflNo.inflate(result);

        assertFalse(inflNo.needsDictionary());
        inflNo.end();
        assertEquals(inputString, new String(result, 0, decLen));

        infl1.setInput(output1, 0, dataLen1);
        decLen = infl1.inflate(result);

        assertTrue(infl1.needsDictionary());
        infl1.setDictionary(dictionary1.getBytes());
        decLen = infl1.inflate(result);
        infl1.end();
        assertEquals(inputString, new String(result, 0, decLen));

        infl2.setInput(output2, 0, dataLen2);
        decLen = infl2.inflate(result);

        assertTrue(infl2.needsDictionary());
        infl2.setDictionary(dictionary2.getBytes());
        decLen = infl2.inflate(result);
        infl2.end();
        assertEquals(inputString, new String(result, 0, decLen));


        inflNo = new Inflater();
        infl1 = new Inflater();
        inflNo.setInput(outputNo, 0, dataLenNo);
        try {
            infl1.setDictionary(dictionary1.getBytes());
            fail("IllegalArgumentException expected.");
        } catch (IllegalArgumentException ee) {
            // expected.
        }
        inflNo.end();

        infl1.setInput(output1, 0, dataLen1);
        decLen = infl1.inflate(result);

        assertTrue(infl1.needsDictionary());
        try {
            infl1.setDictionary(dictionary2.getBytes());
            fail("IllegalArgumentException expected.");
        } catch (IllegalArgumentException ee) {
            // expected.
        }
        infl1.end();
        try {
            infl1.setDictionary(dictionary2.getBytes());
            fail("NullPointerException expected");
        } catch (NullPointerException expected) {
            // Expected
        }
    }

    public void testSetDictionary$BII() throws Exception {
        int i = 0;
        String inputString = "blah string contains blahblahblahblah and blah";
        String dictionary1 = "blah";
        String dictionary2 = "blahblahblah";

        byte[] output1 = new byte[100];
        byte[] output2 = new byte[100];
        byte[] output3 = new byte[100];

        Deflater defDict1 = new Deflater(9);
        Deflater defDict2 = new Deflater(9);
        Deflater defDict3 = new Deflater(9);

        defDict1.setDictionary(dictionary1.getBytes());
        defDict2.setDictionary(dictionary2.getBytes());
        defDict3.setDictionary(dictionary2.getBytes(), 4, 4);

        defDict1.setInput(inputString.getBytes());
        defDict2.setInput(inputString.getBytes());
        defDict3.setInput(inputString.getBytes());

        defDict1.finish();
        defDict2.finish();
        defDict3.finish();

        int dataLen1 = defDict1.deflate(output1);
        int dataLen2 = defDict2.deflate(output2);
        int dataLen3 = defDict3.deflate(output3);

        defDict1.end();
        defDict2.end();
        defDict3.end();

        boolean pass12 = false;
        boolean pass23 = false;
        boolean pass13 = true;

        for (i = 0; i < (dataLen1 < dataLen2 ? dataLen1 : dataLen2); i++) {
            if (output1[i] != output2[i]) {
                pass12 = true;
                break;
            }
        }
        for (i = 0; i < (dataLen2 < dataLen3 ? dataLen2 : dataLen3); i++) {
            if (output2[i] != output3[i]) {
                pass23 = true;
                break;
            }
        }
        for (i = 0; i < (dataLen1 < dataLen3 ? dataLen1 : dataLen3); i++) {
            if (output1[i] != output3[i]) {
                pass13 = false;
                break;
            }
        }

        assertTrue(
                "Compressed data the same for stream with different dictionaries.",
                pass12);
        assertTrue(
                "Compressed data the same for stream with different dictionaries.",
                pass23);
        assertTrue(
                "Compressed data the differs for stream with the same dictionaries.",
                pass13);

        Inflater infl1 = new Inflater();
        Inflater infl2 = new Inflater();
        Inflater infl3 = new Inflater();
        Inflater infl4 = new Inflater();

        byte[] result = new byte[100];
        int decLen;

        infl1.setInput(output1, 0, dataLen1);
        decLen = infl1.inflate(result);

        assertTrue(infl1.needsDictionary());
        infl1.setDictionary(dictionary2.getBytes(), 4, 4);
        decLen = infl1.inflate(result);
        infl1.end();
        assertEquals(inputString, new String(result, 0, decLen));

        infl2.setInput(output2, 0, dataLen2);
        decLen = infl2.inflate(result);

        assertTrue(infl2.needsDictionary());
        try {
            infl2.setDictionary(dictionary1.getBytes());
            fail("IllegalArgumentException expected.");
        } catch (IllegalArgumentException ee) {
            // expected
        }
        infl2.end();

        infl3.setInput(output3, 0, dataLen3);
        decLen = infl3.inflate(result);

        assertTrue(infl3.needsDictionary());
        infl3.setDictionary(dictionary1.getBytes());
        decLen = infl3.inflate(result);
        infl3.end();
        assertEquals(inputString, new String(result, 0, decLen));

        //exception test
        infl4.setInput(output3, 0, dataLen3);
        decLen = infl4.inflate(result);
        assertTrue(infl4.needsDictionary());

        try {
            infl4.setDictionary(dictionary1.getBytes(), 4, 4);
            fail("ArrayIndexOutOfBoundsException expected");
        } catch (ArrayIndexOutOfBoundsException aiob) {
            //expected
        }
        infl4.end();
    }

    public void testExceptions() throws Exception {
        byte byteArray[] = { 5, 2, 3, 7, 8 };

        int r = 0;
        Inflater inflate = new Inflater();
        inflate.setInput(byteArray);
        inflate.end();

        try {
            inflate.getAdler();
            fail("NullPointerException expected");
        } catch (NullPointerException expected) {
            // Expected
        }

        try {
            inflate.getBytesRead();
            fail("NullPointerException expected");
        } catch (NullPointerException expected) {
            // Expected
        }

        try {
            inflate.getBytesWritten();
            fail("NullPointerException expected");
        } catch (NullPointerException expected) {
            // Expected
        }


        try {
            inflate.getTotalIn();
            fail("NullPointerException expected");
        } catch (NullPointerException expected) {
            // Expected
        }

        try {
            inflate.getTotalOut();
            fail("NullPointerException expected");
        } catch (NullPointerException expected) {
            // Expected
        }
    }
}
