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moving aroudn test cases for integration
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Henry Schimke
189
tests/PDF417BlackBox4TestCase.java
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189
tests/PDF417BlackBox4TestCase.java
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/*
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* Copyright 2013 ZXing authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.zxing.pdf417;
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import com.google.zxing.BarcodeFormat;
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import com.google.zxing.BinaryBitmap;
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import com.google.zxing.BufferedImageLuminanceSource;
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import com.google.zxing.DecodeHintType;
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import com.google.zxing.LuminanceSource;
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import com.google.zxing.ReaderException;
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import com.google.zxing.RXingResult;
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import com.google.zxing.RXingResultMetadataType;
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import com.google.zxing.common.AbstractBlackBoxTestCase;
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import com.google.zxing.common.HybridBinarizer;
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import com.google.zxing.common.TestRXingResult;
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import com.google.zxing.multi.MultipleBarcodeReader;
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import org.junit.Test;
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import javax.imageio.ImageIO;
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import java.awt.image.BufferedImage;
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import java.io.IOException;
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import java.nio.charset.StandardCharsets;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Comparator;
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import java.util.EnumMap;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.Map.Entry;
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import java.util.logging.Logger;
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/**
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* This class tests Macro PDF417 barcode specific functionality. It ensures that information, which is split into
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* several barcodes can be properly combined again to yield the original data content.
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*
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* @author Guenther Grau
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*/
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public final class PDF417BlackBox4TestCase extends AbstractBlackBoxTestCase {
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private static final Logger log = Logger.getLogger(AbstractBlackBoxTestCase.class.getSimpleName());
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private final MultipleBarcodeReader barcodeReader = new PDF417Reader();
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private final List<TestRXingResult> testRXingResults = new ArrayList<>();
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public PDF417BlackBox4TestCase() {
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super("src/test/resources/blackbox/pdf417-4", null, BarcodeFormat.PDF_417);
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testRXingResults.add(new TestRXingResult(3, 3, 0, 0, 0.0f));
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}
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@Test
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@Override
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public void testBlackBox() throws IOException {
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assertFalse(testRXingResults.isEmpty());
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Map<String,List<Path>> imageFiles = getImageFileLists();
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int testCount = testRXingResults.size();
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int[] passedCounts = new int[testCount];
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int[] tryHarderCounts = new int[testCount];
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Path testBase = getTestBase();
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for (Entry<String,List<Path>> testImageGroup : imageFiles.entrySet()) {
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log.fine(String.format("Starting Image Group %s", testImageGroup.getKey()));
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String fileBaseName = testImageGroup.getKey();
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String expectedText;
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Path expectedTextFile = testBase.resolve(fileBaseName + ".txt");
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if (Files.exists(expectedTextFile)) {
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expectedText = readFileAsString(expectedTextFile, StandardCharsets.UTF_8);
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} else {
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expectedTextFile = testBase.resolve(fileBaseName + ".bin");
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assertTrue(Files.exists(expectedTextFile));
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expectedText = readFileAsString(expectedTextFile, StandardCharsets.ISO_8859_1);
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}
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for (int x = 0; x < testCount; x++) {
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List<RXingResult> results = new ArrayList<>();
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for (Path imageFile : testImageGroup.getValue()) {
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BufferedImage image = ImageIO.read(imageFile.toFile());
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float rotation = testRXingResults.get(x).getRotation();
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BufferedImage rotatedImage = rotateImage(image, rotation);
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LuminanceSource source = new BufferedImageLuminanceSource(rotatedImage);
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BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
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try {
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results.addAll(Arrays.asList(decode(bitmap, false)));
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} catch (ReaderException ignored) {
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// ignore
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}
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}
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results.sort(Comparator.comparingInt((RXingResult r) -> getMeta(r).getSegmentIndex()));
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StringBuilder resultText = new StringBuilder();
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String fileId = null;
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for (RXingResult result : results) {
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PDF417RXingResultMetadata resultMetadata = getMeta(result);
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assertNotNull("resultMetadata", resultMetadata);
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if (fileId == null) {
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fileId = resultMetadata.getFileId();
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}
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assertEquals("FileId", fileId, resultMetadata.getFileId());
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resultText.append(result.getText());
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}
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assertEquals("ExpectedText", expectedText, resultText.toString());
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passedCounts[x]++;
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tryHarderCounts[x]++;
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}
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}
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// Print the results of all tests first
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int totalFound = 0;
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int totalMustPass = 0;
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int numberOfTests = imageFiles.keySet().size();
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for (int x = 0; x < testRXingResults.size(); x++) {
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TestRXingResult testRXingResult = testRXingResults.get(x);
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log.info(String.format("Rotation %d degrees:", (int) testRXingResult.getRotation()));
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log.info(String.format(" %d of %d images passed (%d required)", passedCounts[x], numberOfTests,
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testRXingResult.getMustPassCount()));
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log.info(String.format(" %d of %d images passed with try harder (%d required)", tryHarderCounts[x],
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numberOfTests, testRXingResult.getTryHarderCount()));
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totalFound += passedCounts[x] + tryHarderCounts[x];
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totalMustPass += testRXingResult.getMustPassCount() + testRXingResult.getTryHarderCount();
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}
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int totalTests = numberOfTests * testCount * 2;
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log.info(String.format("Decoded %d images out of %d (%d%%, %d required)", totalFound, totalTests, totalFound *
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100 /
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totalTests, totalMustPass));
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if (totalFound > totalMustPass) {
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log.warning(String.format("+++ Test too lax by %d images", totalFound - totalMustPass));
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} else if (totalFound < totalMustPass) {
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log.warning(String.format("--- Test failed by %d images", totalMustPass - totalFound));
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}
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// Then run through again and assert if any failed
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for (int x = 0; x < testCount; x++) {
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TestRXingResult testRXingResult = testRXingResults.get(x);
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String label = "Rotation " + testRXingResult.getRotation() + " degrees: Too many images failed";
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assertTrue(label, passedCounts[x] >= testRXingResult.getMustPassCount());
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assertTrue("Try harder, " + label, tryHarderCounts[x] >= testRXingResult.getTryHarderCount());
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}
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}
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private static PDF417RXingResultMetadata getMeta(RXingResult result) {
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return result.getRXingResultMetadata() == null ? null : (PDF417RXingResultMetadata) result.getRXingResultMetadata().get(
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RXingResultMetadataType.PDF417_EXTRA_METADATA);
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}
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private RXingResult[] decode(BinaryBitmap source, boolean tryHarder) throws ReaderException {
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Map<DecodeHintType,Object> hints = new EnumMap<>(DecodeHintType.class);
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if (tryHarder) {
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hints.put(DecodeHintType.TRY_HARDER, Boolean.TRUE);
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}
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return barcodeReader.decodeMultiple(source, hints);
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}
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private Map<String,List<Path>> getImageFileLists() throws IOException {
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Map<String,List<Path>> result = new HashMap<>();
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for (Path file : getImageFiles()) {
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String testImageFileName = file.getFileName().toString();
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String fileBaseName = testImageFileName.substring(0, testImageFileName.indexOf('-'));
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List<Path> files = result.computeIfAbsent(fileBaseName, k -> new ArrayList<>());
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files.add(file);
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}
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return result;
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}
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}
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