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org.apache.batik.ext.awt.image.codec
Class PNGEncoderTest  

java.lang.Object
  org.apache.batik.test.AbstractTest
      org.apache.batik.ext.awt.image.codec.PNGEncoderTest

All Implemented Interfaces:

org.apache.batik.test.Test

Direct Known Subclasses:

Base64PNGEncoderTest

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public class PNGEncoderTest

extends org.apache.batik.test.AbstractTest

This test validates the PNGEncoder operation. It creates a BufferedImage, then encodes it with the PNGEncoder, then decodes it and compares the decoded image with the original one.

Version:

$Id: PNGEncoderTest.java,v 1.4 2005/04/01 02:28:16 deweese Exp $

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Field Summary
static java.lang.String	ERROR_CANNOT_DECODE_IMAGE           Error when image cannot be decoded {0} = trace for the exception which was reported
static java.lang.String	ERROR_CANNOT_ENCODE_IMAGE           Error when image cannot be encoded {0} = trace for the exception which was reported
static java.lang.String	ERROR_DECODED_DOES_NOT_MATCH_ENCODED           Decoded image differs from encoded image

 

Fields inherited from class org.apache.batik.test.AbstractTest

id, name, parent

 

Constructor Summary

PNGEncoderTest()

 

Method Summary
java.io.InputStream	buildInputStream(java.io.ByteArrayOutputStream bos)           Template method for building the PNG input stream.
java.io.OutputStream	buildOutputStream(java.io.ByteArrayOutputStream bos)           Template method for building the PNG output stream.
static boolean	checkIdentical(java.awt.image.BufferedImage imgA, java.awt.image.BufferedImage imgB)           Compares the data for the two images
org.apache.batik.test.TestReport	runImpl()           Subclasses should implement this method with the content of the test case.

 

Methods inherited from class org.apache.batik.test.AbstractTest

assertEquals, assertEquals, assertNull, assertTrue, error, getId, getName, getParent, getQualifiedId, reportError, reportException, reportSuccess, run, runImplBasic, setId, setName, setParent

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Field Detail

ERROR_CANNOT_ENCODE_IMAGE

public static final java.lang.String ERROR_CANNOT_ENCODE_IMAGE

Error when image cannot be encoded {0} = trace for the exception which was reported

See Also:

Constant Field Values

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ERROR_CANNOT_DECODE_IMAGE

public static final java.lang.String ERROR_CANNOT_DECODE_IMAGE

Error when image cannot be decoded {0} = trace for the exception which was reported

See Also:

Constant Field Values

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ERROR_DECODED_DOES_NOT_MATCH_ENCODED

public static final java.lang.String ERROR_DECODED_DOES_NOT_MATCH_ENCODED

Decoded image differs from encoded image

See Also:

Constant Field Values

Constructor Detail

PNGEncoderTest

public PNGEncoderTest()

Method Detail

runImpl

public org.apache.batik.test.TestReport runImpl()
                                         throws java.lang.Exception

Description copied from class: org.apache.batik.test.AbstractTest

Subclasses should implement this method with the content of the test case. Typically, implementations will choose to catch and process all exceptions and error conditions they are looking for in the code they exercise but will let exceptions due to their own processing propagate.

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buildOutputStream

public java.io.OutputStream buildOutputStream(java.io.ByteArrayOutputStream bos)

Template method for building the PNG output stream. This gives a chance to sub-classes (e.g., Base64PNGEncoderTest) to add an additional encoding.

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buildInputStream

public java.io.InputStream buildInputStream(java.io.ByteArrayOutputStream bos)

Template method for building the PNG input stream. This gives a chance to sub-classes (e.g., Base64PNGEncoderTest) to add an additional decoding.

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checkIdentical

public static boolean checkIdentical(java.awt.image.BufferedImage imgA,
                                     java.awt.image.BufferedImage imgB)

Compares the data for the two images

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Home >> All >> org >> apache >> batik >> ext >> awt >> image >> [ codec overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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