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

import java.util.TimeZone;
import java.util.zip.ZipEntry;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;

import tests.support.resource.Support_Resources;

public class ZipEntryTest extends junit.framework.TestCase {

    public byte[] getAllBytesFromStream(InputStream is) throws IOException {
        ByteArrayOutputStream bs = new ByteArrayOutputStream();
        byte[] buf = new byte[512];
        int iRead;
        int off;
        while (is.available() > 0) {
            iRead = is.read(buf, 0, buf.length);
            if (iRead > 0) bs.write(buf, 0, iRead);
        }
        return bs.toByteArray();
    }

	// zip file hyts_ZipFile.zip must be included as a resource
	java.util.zip.ZipEntry zentry;

	java.util.zip.ZipFile zfile;

	private static final String platformId = System.getProperty(
			"com.ibm.oti.configuration", "JDK")
			+ System.getProperty("java.vm.version");

	static final String tempFileName = platformId + "zfzezi.zip";

	long orgSize;

	long orgCompressedSize;

	long orgCrc;

	long orgTime;

	String orgComment;

	/**
	 * @tests java.util.zip.ZipEntry#ZipEntry(java.lang.String)
	 */
	public void test_ConstructorLjava_lang_String() {
		// Test for method java.util.zip.ZipEntry(java.lang.String)
		zentry = zfile.getEntry("File3.txt");
		assertNotNull("Failed to create ZipEntry", zentry);
		try {
			zentry = zfile.getEntry(null);
			fail("NullPointerException not thrown");
		} catch (NullPointerException e) {
		}
		StringBuffer s = new StringBuffer();
		for (int i = 0; i < 65535; i++) {
            s.append('a');
        }
		try {
			zentry = new ZipEntry(s.toString());
		} catch (IllegalArgumentException e) {
			fail("Unexpected IllegalArgumentException During Test.");
		}
		try {
			s.append('a');
			zentry = new ZipEntry(s.toString());
			fail("IllegalArgumentException not thrown");
		} catch (IllegalArgumentException e) {
		}
		try {
			String n = null;
			zentry = new ZipEntry(n);
			fail("NullPointerException not thrown");
		} catch (NullPointerException e) {
		}
	}

	/**
	 * @tests java.util.zip.ZipEntry#getComment()
	 */
	public void test_getComment() {
		// Test for method java.lang.String java.util.zip.ZipEntry.getComment()
		ZipEntry zipEntry = new ZipEntry("zippy.zip");
		assertNull("Incorrect Comment Returned.", zipEntry.getComment());
		zipEntry.setComment("This Is A Comment");
		assertEquals("Incorrect Comment Returned.", 
				"This Is A Comment", zipEntry.getComment());
	}

	/**
	 * @tests java.util.zip.ZipEntry#getCompressedSize()
	 */
	public void test_getCompressedSize() {
		// Test for method long java.util.zip.ZipEntry.getCompressedSize()
		assertTrue("Incorrect compressed size returned", zentry
				.getCompressedSize() == orgCompressedSize);
	}

	/**
	 * @tests java.util.zip.ZipEntry#getCrc()
	 */
	public void test_getCrc() {
		// Test for method long java.util.zip.ZipEntry.getCrc()
		assertEquals("Failed to get Crc", orgCrc, zentry.getCrc());
	}

	/**
	 * @tests java.util.zip.ZipEntry#getExtra()
	 */
	public void test_getExtra() {
		// Test for method byte [] java.util.zip.ZipEntry.getExtra()
		assertNull("Incorrect extra information returned",
				zentry.getExtra());
		byte[] ba = { 'T', 'E', 'S', 'T' };
		zentry = new ZipEntry("test.tst");
		zentry.setExtra(ba);
		assertEquals("Incorrect Extra Information Returned.",
				ba, zentry.getExtra());
	}

	/**
	 * @tests java.util.zip.ZipEntry#getMethod()
	 */
	public void test_getMethod() {
		// Test for method int java.util.zip.ZipEntry.getMethod()
		zentry = zfile.getEntry("File1.txt");
		assertEquals("Incorrect compression method returned",
				java.util.zip.ZipEntry.STORED, zentry.getMethod());
		zentry = zfile.getEntry("File3.txt");
		assertEquals("Incorrect compression method returned",
				java.util.zip.ZipEntry.DEFLATED, zentry.getMethod());
		zentry = new ZipEntry("test.tst");
		assertEquals("Incorrect Method Returned.", -1, zentry.getMethod());
	}

	/**
	 * @tests java.util.zip.ZipEntry#getName()
	 */
	public void test_getName() {
		// Test for method java.lang.String java.util.zip.ZipEntry.getName()
		assertEquals("Incorrect name returned - Note return result somewhat ambiguous in spec",
				"File1.txt", zentry.getName());
	}

	/**
	 * @tests java.util.zip.ZipEntry#getSize()
	 */
	public void test_getSize() {
		// Test for method long java.util.zip.ZipEntry.getSize()
		assertEquals("Incorrect size returned", orgSize, zentry.getSize());
	}

	/**
	 * @tests java.util.zip.ZipEntry#getTime()
	 */
	public void test_getTime() {
		// Test for method long java.util.zip.ZipEntry.getTime()
		assertEquals("Failed to get time", orgTime, zentry.getTime());
	}

	/**
	 * @tests java.util.zip.ZipEntry#isDirectory()
	 */
	public void test_isDirectory() {
		// Test for method boolean java.util.zip.ZipEntry.isDirectory()
		assertTrue("Entry should not answer true to isDirectory", !zentry
				.isDirectory());
		zentry = new ZipEntry("Directory/");
		assertTrue("Entry should answer true to isDirectory", zentry
				.isDirectory());
	}

	/**
	 * @tests java.util.zip.ZipEntry#setComment(java.lang.String)
	 */
	public void test_setCommentLjava_lang_String() {
		// Test for method void
		// java.util.zip.ZipEntry.setComment(java.lang.String)
		zentry = zfile.getEntry("File1.txt");
		zentry.setComment("Set comment using api");
		assertEquals("Comment not correctly set", 
				"Set comment using api", zentry.getComment());
		String n = null;
		zentry.setComment(n);
		assertNull("Comment not correctly set", zentry.getComment());
		StringBuffer s = new StringBuffer();
		for (int i = 0; i < 0xFFFF; i++) {
            s.append('a');
        }
		try {
			zentry.setComment(s.toString());
		} catch (IllegalArgumentException e) {
			fail("Unexpected IllegalArgumentException During Test.");
		}
		try {
			s.append('a');
			zentry.setComment(s.toString());
			fail("IllegalArgumentException not thrown");
		} catch (IllegalArgumentException e) {
		}
	}

	/**
	 * @tests java.util.zip.ZipEntry#setCompressedSize(long)
	 */
	public void test_setCompressedSizeJ() {
		// Test for method void java.util.zip.ZipEntry.setCompressedSize(long)
		zentry.setCompressedSize(orgCompressedSize + 10);
		assertEquals("Set compressed size failed",
				(orgCompressedSize + 10), zentry.getCompressedSize());
		zentry.setCompressedSize(0);
		assertEquals("Set compressed size failed",
				0, zentry.getCompressedSize());
		zentry.setCompressedSize(-25);
		assertEquals("Set compressed size failed",
				-25, zentry.getCompressedSize());
		zentry.setCompressedSize(4294967296l);
		assertEquals("Set compressed size failed",
				4294967296l, zentry.getCompressedSize());
	}

	/**
	 * @tests java.util.zip.ZipEntry#setCrc(long)
	 */
	public void test_setCrcJ() {
		// Test for method void java.util.zip.ZipEntry.setCrc(long)
		zentry.setCrc(orgCrc + 100);
		assertEquals("Failed to set Crc", (orgCrc + 100), zentry.getCrc());
		zentry.setCrc(0);
		assertEquals("Failed to set Crc", 0, zentry.getCrc());
		try {
			zentry.setCrc(-25);
			fail("IllegalArgumentException not thrown");
		} catch (IllegalArgumentException e) {
		}
		try {
			zentry.setCrc(4294967295l);
		} catch (IllegalArgumentException e) {
			fail("Unexpected IllegalArgumentException during test");
		}
		try {
			zentry.setCrc(4294967296l);
			fail("IllegalArgumentException not thrown");
		} catch (IllegalArgumentException e) {
		}
	}

	/**
	 * @tests java.util.zip.ZipEntry#setExtra(byte[])
	 */
	public void test_setExtra$B() {
		// Test for method void java.util.zip.ZipEntry.setExtra(byte [])
		zentry = zfile.getEntry("File1.txt");
		zentry.setExtra("Test setting extra information".getBytes());
		assertEquals("Extra information not written properly", "Test setting extra information", new String(zentry
				.getExtra(), 0, zentry.getExtra().length)
				);
		zentry = new ZipEntry("test.tst");
		byte[] ba = new byte[0xFFFF];
		try {
			zentry.setExtra(ba);
		} catch (IllegalArgumentException e) {
			fail("Unexpected IllegalArgumentException during test");
		}
		try {
			ba = new byte[0xFFFF + 1];
			zentry.setExtra(ba);
			fail("IllegalArgumentException not thrown");
		} catch (IllegalArgumentException e) {
		}

		// One constructor
		ZipEntry zeInput = new ZipEntry("InputZIP");
		byte[] extraB = { 'a', 'b', 'd', 'e' };
		zeInput.setExtra(extraB);
		assertEquals(extraB, zeInput.getExtra());
		assertEquals(extraB[3], zeInput.getExtra()[3]);
		assertEquals(extraB.length, zeInput.getExtra().length);

		// test another constructor
		ZipEntry zeOutput = new ZipEntry(zeInput);
		assertEquals(zeInput.getExtra()[3], zeOutput.getExtra()[3]);
		assertEquals(zeInput.getExtra().length, zeOutput.getExtra().length);
		assertEquals(extraB[3], zeOutput.getExtra()[3]);
		assertEquals(extraB.length, zeOutput.getExtra().length);
	}

	/**
	 * @tests java.util.zip.ZipEntry#setMethod(int)
	 */
	public void test_setMethodI() {
		// Test for method void java.util.zip.ZipEntry.setMethod(int)
		zentry = zfile.getEntry("File3.txt");
		zentry.setMethod(ZipEntry.STORED);
		assertEquals("Failed to set compression method",
				ZipEntry.STORED, zentry.getMethod());
		zentry.setMethod(ZipEntry.DEFLATED);
		assertEquals("Failed to set compression method",
				ZipEntry.DEFLATED, zentry.getMethod());
		try {
			int error = 1;
			zentry = new ZipEntry("test.tst");
			zentry.setMethod(error);
			fail("IllegalArgumentException not thrown");
		} catch (IllegalArgumentException e) {
		}
	}

	/**
	 * @tests java.util.zip.ZipEntry#setSize(long)
	 */
	public void test_setSizeJ() {
		// Test for method void java.util.zip.ZipEntry.setSize(long)
		zentry.setSize(orgSize + 10);
		assertEquals("Set size failed", (orgSize + 10), zentry.getSize());
		zentry.setSize(0);
		assertEquals("Set size failed", 0, zentry.getSize());
		try {
			zentry.setSize(-25);
			fail("IllegalArgumentException not thrown");
		} catch (IllegalArgumentException e) {
		}
		try {
			zentry.setCrc(4294967295l);
		} catch (IllegalArgumentException e) {
			fail("Unexpected IllegalArgumentException during test");
		}
		try {
			zentry.setCrc(4294967296l);
			fail("IllegalArgumentException not thrown");
		} catch (IllegalArgumentException e) {
		}
	}

	/**
	 * @tests java.util.zip.ZipEntry#setTime(long)
	 */
	public void test_setTimeJ() {
		// Test for method void java.util.zip.ZipEntry.setTime(long)
		zentry.setTime(orgTime + 10000);
		assertEquals("Test 1: Failed to set time: " + zentry.getTime(), (orgTime + 10000), 
		        zentry.getTime());
		zentry.setTime(orgTime - 10000);
		assertEquals("Test 2: Failed to set time: " + zentry.getTime(), (orgTime - 10000), 
		        zentry.getTime());
		TimeZone zone = TimeZone.getDefault();
		try {
			TimeZone.setDefault(TimeZone.getTimeZone("EST"));
			zentry.setTime(0);
			assertEquals("Test 3: Failed to set time: " + zentry.getTime(),
					315550800000L, zentry.getTime());
			TimeZone.setDefault(TimeZone.getTimeZone("GMT"));
			assertEquals("Test 3a: Failed to set time: " + zentry.getTime(),
					315532800000L, zentry.getTime());
			zentry.setTime(0);
			TimeZone.setDefault(TimeZone.getTimeZone("EST"));
			assertEquals("Test 3b: Failed to set time: " + zentry.getTime(),
					315550800000L, zentry.getTime());

			zentry.setTime(-25);
			assertEquals("Test 4: Failed to set time: " + zentry.getTime(),
					315550800000L, zentry.getTime());
			zentry.setTime(4354837200000L);
			assertEquals("Test 5: Failed to set time: " + zentry.getTime(),
					315550800000L, zentry.getTime());
		} finally {
			TimeZone.setDefault(zone);
		}
	}

	/**
	 * @tests java.util.zip.ZipEntry#toString()
	 */
	public void test_toString() {
		// Test for method java.lang.String java.util.zip.ZipEntry.toString()
		assertTrue("Returned incorrect entry name", zentry.toString().indexOf(
				"File1.txt") >= 0);
	}

	/**
	 * @tests java.util.zip.ZipEntry#ZipEntry(java.util.zip.ZipEntry)
	 */
	public void test_ConstructorLjava_util_zip_ZipEntry() {
		// Test for method java.util.zip.ZipEntry(util.zip.ZipEntry)
		zentry.setSize(2);
		zentry.setCompressedSize(4);
		zentry.setComment("Testing");
		ZipEntry zentry2 = new ZipEntry(zentry);
		assertEquals("ZipEntry Created With Incorrect Size.",
				2, zentry2.getSize());
		assertEquals("ZipEntry Created With Incorrect Compressed Size.", 4, zentry2
				.getCompressedSize());
		assertEquals("ZipEntry Created With Incorrect Comment.", "Testing", zentry2
				.getComment());
		assertEquals("ZipEntry Created With Incorrect Crc.",
				orgCrc, zentry2.getCrc());
		assertEquals("ZipEntry Created With Incorrect Time.",
				orgTime, zentry2.getTime());
	}

	/**
	 * @tests java.util.zip.ZipEntry#clone()
	 */
	public void test_clone() {
		// Test for method java.util.zip.ZipEntry.clone()
		Object obj = zentry.clone();
		assertEquals("toString()", zentry.toString(), obj.toString());
		assertEquals("hashCode()", zentry.hashCode(), obj.hashCode());

		// One constructor
		ZipEntry zeInput = new ZipEntry("InputZIP");
		byte[] extraB = { 'a', 'b', 'd', 'e' };
		zeInput.setExtra(extraB);
		assertEquals(extraB, zeInput.getExtra());
		assertEquals(extraB[3], zeInput.getExtra()[3]);
		assertEquals(extraB.length, zeInput.getExtra().length);

		// test Clone()
		ZipEntry zeOutput = (ZipEntry) zeInput.clone();
		assertEquals(zeInput.getExtra()[3], zeOutput.getExtra()[3]);
		assertEquals(zeInput.getExtra().length, zeOutput.getExtra().length);
		assertEquals(extraB[3], zeOutput.getExtra()[3]);
		assertEquals(extraB.length, zeOutput.getExtra().length);
	}

	/**
	 * Sets up the fixture, for example, open a network connection. This method
	 * is called before a test is executed.
	 */

	@Override
    protected void setUp() {
		java.io.File f = null;
		try {
			// Create a local copy of the file since some tests want to alter
			// information.
			f = new java.io.File(tempFileName);
			// Create absolute filename as ZipFile does not resolve using
			// user.dir
			f = new java.io.File(f.getAbsolutePath());
			f.delete();
			java.io.InputStream is = Support_Resources
					.getStream("hyts_ZipFile.zip");
			java.io.FileOutputStream fos = new java.io.FileOutputStream(f);
            byte[] rbuf = getAllBytesFromStream(is);
			fos.write(rbuf, 0, rbuf.length);
			is.close();
			fos.close();
			zfile = new java.util.zip.ZipFile(f);
			zentry = zfile.getEntry("File1.txt");
			orgSize = zentry.getSize();
			orgCompressedSize = zentry.getCompressedSize();
			orgCrc = zentry.getCrc();
			orgTime = zentry.getTime();
			orgComment = zentry.getComment();
		} catch (Exception e) {
			System.out.println("Exception during ZipFile setup <"
					+ f.getAbsolutePath() + ">: ");
			e.printStackTrace();
		}
	}

	/**
	 * Tears down the fixture, for example, close a network connection. This
	 * method is called after a test is executed.
	 */

	@Override
    protected void tearDown() {
		try {
			if (zfile != null) {
                zfile.close();
            }
			java.io.File f = new java.io.File(tempFileName);
			f.delete();
		} catch (java.io.IOException e) {
			System.out.println("Exception during tearDown");
		}
	}

}