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Merge pull request #5 from sudhirmohanraj/Issue1
Add test cases for ReportGenerator. Thanks to @sudhirmohanraj
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Diff for: ‎AUTHORS.adoc

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|[email protected]
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|Maintainer
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|Sudhir Mohanraj
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|sudhirmohanraj
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|[email protected]
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|Contributor
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2025
|===

Diff for: ‎src/test/java/net/sf/javaanpr/gui/ReportGeneratorTest.java

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/*
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------------------------------------------------------------------------
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JavaANPR - Automatic Number Plate Recognition System for Java
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------------------------------------------------------------------------
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This file is a part of the JavaANPR, licensed under the terms of the
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Educational Community License
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Copyright (c) 2006-2007 Ondrej Martinsky. All rights reserved
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This Original Work, including software, source code, documents, or
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other related items, is being provided by the copyright holder(s)
13+
subject to the terms of the Educational Community License. By
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obtaining, using and/or copying this Original Work, you agree that you
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have read, understand, and will comply with the following terms and
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conditions of the Educational Community License:
17+
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Permission to use, copy, modify, merge, publish, distribute, and
19+
sublicense this Original Work and its documentation, with or without
20+
modification, for any purpose, and without fee or royalty to the
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copyright holder(s) is hereby granted, provided that you include the
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following on ALL copies of the Original Work or portions thereof,
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including modifications or derivatives, that you make:
24+
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# The full text of the Educational Community License in a location
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viewable to users of the redistributed or derivative work.
27+
28+
# Any pre-existing intellectual property disclaimers, notices, or terms
29+
and conditions.
30+
31+
# Notice of any changes or modifications to the Original Work,
32+
including the date the changes were made.
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# Any modifications of the Original Work must be distributed in such a
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manner as to avoid any confusion with the Original Work of the
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copyright holders.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
43+
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
44+
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
45+
46+
The name and trademarks of copyright holder(s) may NOT be used in
47+
advertising or publicity pertaining to the Original or Derivative Works
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without specific, written prior permission. Title to copyright in the
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Original Work and any associated documentation will at all times remain
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with the copyright holders.
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If you want to alter upon this work, you MUST attribute it in
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a) all source files
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b) on every place, where is the copyright of derivated work
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exactly by the following label :
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---- label begin ----
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This work is a derivate of the JavaANPR. JavaANPR is a intellectual
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property of Ondrej Martinsky. Please visit http://javaanpr.sourceforge.net
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for more info about JavaANPR.
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---- label end ----
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------------------------------------------------------------------------
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http://javaanpr.sourceforge.net
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------------------------------------------------------------------------
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*/
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package net.sf.javaanpr.gui;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.fail;
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import java.awt.image.BufferedImage;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import net.sf.javaanpr.imageanalysis.CarSnapshot;
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import net.sf.javaanpr.test.util.TestUtility;
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import org.junit.Test;
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/**
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* Tests the class {@link ReportGenerator}
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*/
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public class ReportGeneratorTest {
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TestUtility testUtility = new TestUtility();
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private CarSnapshot carSnapshot;
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/**
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* Tests {@link ReportGenerator#insertImage(BufferedImage, String, int, int)} with valid inputs.
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* @throws IllegalArgumentException the illegal argument exception
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* @throws IOException Signals that an I/O exception has occurred.
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*/
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@Test
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public void testInsertImage_Valid() throws IllegalArgumentException, IOException {
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final int w = 1;
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final CarSnapshot carSnapshot = new CarSnapshot("snapshots/test_001.jpg");
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final BufferedImage image = carSnapshot.renderGraph();
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final String cls = "test";
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final int h = 1;
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final ReportGenerator reportGenerator = new ReportGenerator("target/test-classes/");
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try {
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reportGenerator.insertImage(image, cls, w, h);
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} catch (final Exception e) {
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fail();
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}
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}
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/**
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* Tests {@link ReportGenerator#insertImage(BufferedImage, String, int, int)} throws an error when the input is not
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* valid.
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* @throws IllegalArgumentException the illegal argument exception
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* @throws IOException Signals that an I/O exception has occurred.
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*/
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@Test
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public void testInsertImage_BadInput() throws IllegalArgumentException, IOException {
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try {
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final ReportGenerator reportGenerator = new ReportGenerator("target/test-classes/");
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final int w = 1;
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final CarSnapshot carSnapshot = new CarSnapshot("snapshots/test_00.jpg");
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final BufferedImage image = carSnapshot.renderGraph();
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final String cls = "test";
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final int h = 1;
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reportGenerator.insertImage(image, cls, w, h);
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} catch (final Exception e) {
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assertEquals("input == null!", e.getMessage());
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}
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}
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/**
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* Tests {@link ReportGenerator#insertText(String)} with null input.
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* @throws IllegalArgumentException the illegal argument exception
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* @throws IOException Signals that an I/O exception has occurred.
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*/
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@Test
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public void testInsertText_NullInput() throws IllegalArgumentException, IOException {
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try {
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final ReportGenerator reportGenerator = new ReportGenerator("target/test-classes/");
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reportGenerator.insertText(null);
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} catch (final Exception e) {
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fail();
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}
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}
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/**
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* Tests {@link ReportGenerator#insertText(String)} with empty string input.
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* @throws IllegalArgumentException the illegal argument exception
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* @throws IOException Signals that an I/O exception has occurred.
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*/
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@Test
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public void testInsertText_EmptyInput() throws IllegalArgumentException, IOException {
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try {
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final ReportGenerator reportGenerator = new ReportGenerator("target/test-classes/");
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reportGenerator.insertText("");
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} catch (final Exception e) {
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fail();
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}
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}
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/**
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* Tests {@link ReportGenerator#saveStreamToFile(java.io.InputStream, java.io.File)} with null input stream.
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* @throws IllegalArgumentException the illegal argument exception
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* @throws IOException Signals that an I/O exception has occurred.
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*/
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@Test
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public void testSaveStreamToFile_InvalidInput() throws IllegalArgumentException, IOException {
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try {
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final ReportGenerator reportGenerator = new ReportGenerator("target/test-classes/");
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final InputStream inStream = null;
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final File io = new File("target/test-classes/out.txt");
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reportGenerator.saveStreamToFile(null, io);
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} catch (final Exception e) {
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assertEquals(null, e.getMessage());
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}
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}
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/**
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* Tests {@link ReportGenerator#saveStreamToFile(java.io.InputStream, java.io.File)} with null output stream input.
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* @throws IllegalArgumentException the illegal argument exception
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* @throws IOException Signals that an I/O exception has occurred.
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*/
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@Test
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public void testSaveStreamToFile_InvalidOutput() throws IllegalArgumentException, IOException {
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try {
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final ReportGenerator reportGenerator = new ReportGenerator("target/test-classes/");
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final InputStream inStream = new FileInputStream("src/test/resources/snapshots/test_001.jpg");
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reportGenerator.saveStreamToFile(inStream, null);
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} catch (final Exception e) {
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assertEquals(null, e.getMessage());
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}
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}
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/**
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* Tests {@link ReportGenerator#saveStreamToFile(java.io.InputStream, java.io.File)} with valid input and output
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* stream.
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* @throws IllegalArgumentException the illegal argument exception
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* @throws IOException Signals that an I/O exception has occurred.
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*/
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@Test
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public void testSaveStreamToFile_Valid() throws IllegalArgumentException, IOException {
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final ReportGenerator reportGenerator = new ReportGenerator("target/test-classes/");
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final InputStream inStream = new FileInputStream("src/test/resources/snapshots/test_001.jpg");
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final File io = new File("target/test-classes/out.txt");
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reportGenerator.saveStreamToFile(inStream, io);
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StringBuilder sb = new StringBuilder();
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sb = testUtility.readFile("target/test-classes/out.txt");
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assertEquals(true, sb.toString().contains("Hewlett-Packard"));
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}
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/**
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* Tests {@link ReportGenerator#saveImage(BufferedImage, String)} with valid input.
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* @throws IllegalArgumentException the illegal argument exception
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* @throws IOException Signals that an I/O exception has occurred.
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*/
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@Test
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public void testSaveImage_Valid() throws IllegalArgumentException, IOException {
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try {
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final ReportGenerator reportGenerator = new ReportGenerator("target/test-classes/");
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final CarSnapshot carSnapshot = new CarSnapshot("snapshots/test_001.jpg");
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final BufferedImage image = carSnapshot.renderGraph();
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final String cls = "test";
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final int h = 0;
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final int w = 0;
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reportGenerator.saveImage(image, "png");
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} catch (final Exception e) {
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fail(e.getMessage());
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}
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}
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/**
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* Tests {@link ReportGenerator#saveImage(BufferedImage, String)} with invalid string input and a valid image input
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* @throws IllegalArgumentException the illegal argument exception
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* @throws IOException Signals that an I/O exception has occurred.
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*/
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@Test
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public void testSaveImage_InvalidInput() throws IllegalArgumentException, IOException {
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try {
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final ReportGenerator reportGenerator = new ReportGenerator("target/test-classes/");
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final CarSnapshot carSnapshot = new CarSnapshot("snapshots/test_001.jpg");
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final BufferedImage image = carSnapshot.renderGraph();
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reportGenerator.saveImage(image, "target/test-classes/txt");
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} catch (final Exception e) {
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assertEquals("Unsupported file format", e.getMessage());
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}
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}
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}

Diff for: ‎src/test/java/net/sf/javaanpr/test/util/TestUtility.java

+89
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/*
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------------------------------------------------------------------------
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JavaANPR - Automatic Number Plate Recognition System for Java
4+
------------------------------------------------------------------------
5+
6+
This file is a part of the JavaANPR, licensed under the terms of the
7+
Educational Community License
8+
9+
Copyright (c) 2006-2007 Ondrej Martinsky. All rights reserved
10+
11+
This Original Work, including software, source code, documents, or
12+
other related items, is being provided by the copyright holder(s)
13+
subject to the terms of the Educational Community License. By
14+
obtaining, using and/or copying this Original Work, you agree that you
15+
have read, understand, and will comply with the following terms and
16+
conditions of the Educational Community License:
17+
18+
Permission to use, copy, modify, merge, publish, distribute, and
19+
sublicense this Original Work and its documentation, with or without
20+
modification, for any purpose, and without fee or royalty to the
21+
copyright holder(s) is hereby granted, provided that you include the
22+
following on ALL copies of the Original Work or portions thereof,
23+
including modifications or derivatives, that you make:
24+
25+
# The full text of the Educational Community License in a location
26+
viewable to users of the redistributed or derivative work.
27+
28+
# Any pre-existing intellectual property disclaimers, notices, or terms
29+
and conditions.
30+
31+
# Notice of any changes or modifications to the Original Work,
32+
including the date the changes were made.
33+
34+
# Any modifications of the Original Work must be distributed in such a
35+
manner as to avoid any confusion with the Original Work of the
36+
copyright holders.
37+
38+
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
39+
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
40+
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
41+
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
42+
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
43+
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
44+
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
45+
46+
The name and trademarks of copyright holder(s) may NOT be used in
47+
advertising or publicity pertaining to the Original or Derivative Works
48+
without specific, written prior permission. Title to copyright in the
49+
Original Work and any associated documentation will at all times remain
50+
with the copyright holders.
51+
52+
If you want to alter upon this work, you MUST attribute it in
53+
a) all source files
54+
b) on every place, where is the copyright of derivated work
55+
exactly by the following label :
56+
57+
---- label begin ----
58+
This work is a derivate of the JavaANPR. JavaANPR is a intellectual
59+
property of Ondrej Martinsky. Please visit http://javaanpr.sourceforge.net
60+
for more info about JavaANPR.
61+
---- label end ----
62+
63+
------------------------------------------------------------------------
64+
http://javaanpr.sourceforge.net
65+
------------------------------------------------------------------------
66+
*/
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package net.sf.javaanpr.test.util;
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import java.io.BufferedReader;
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import java.io.FileReader;
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import java.io.IOException;
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/**
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* Utility class which helps in having methods for Testing.
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*/
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public class TestUtility {
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public StringBuilder readFile(final String filename) throws IOException {
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final BufferedReader br = new BufferedReader(new FileReader(filename));
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final StringBuilder sb = new StringBuilder();
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String currentLine = null;
83+
while ((currentLine = br.readLine()) != null) {
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sb.append(currentLine);
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}
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return sb;
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}
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}

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