/*
- * Copyright 2008 Google Inc.
+ * Copyright 2008 ZXing authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Hashtable;
-import java.util.Vector;
+import java.util.List;
+import java.util.ArrayList;
+import java.nio.charset.Charset;
/**
- * @author srowen@google.com (Sean Owen)
+ * @author Sean Owen
* @author dswitkin@google.com (Daniel Switkin)
*/
public abstract class AbstractBlackBoxTestCase extends TestCase {
private static class TestResult {
private final int mustPassCount;
+ private final int tryHarderCount;
private final float rotation;
- TestResult(int mustPassCount, float rotation) {
+
+ TestResult(int mustPassCount, int tryHarderCount, float rotation) {
this.mustPassCount = mustPassCount;
+ this.tryHarderCount = tryHarderCount;
this.rotation = rotation;
}
public int getMustPassCount() {
return mustPassCount;
}
+ public int getTryHarderCount() {
+ return tryHarderCount;
+ }
public float getRotation() {
return rotation;
}
private final File testBase;
private final Reader barcodeReader;
private final BarcodeFormat expectedFormat;
- private Vector<TestResult> testResults;
+ private final List<TestResult> testResults;
- protected AbstractBlackBoxTestCase(File testBase,
+ protected AbstractBlackBoxTestCase(String testBasePathSuffix,
Reader barcodeReader,
BarcodeFormat expectedFormat) {
+ // A little workaround to prevent aggravation in my IDE
+ File testBase = new File(testBasePathSuffix);
+ if (!testBase.exists()) {
+ // try starting with 'core' since the test base is often given as the project root
+ testBase = new File("core/" + testBasePathSuffix);
+ }
this.testBase = testBase;
this.barcodeReader = barcodeReader;
this.expectedFormat = expectedFormat;
- testResults = new Vector<TestResult>();
+ testResults = new ArrayList<TestResult>();
}
/**
* Adds a new test for the current directory of images.
*
* @param mustPassCount The number of images which must decode for the test to pass.
+ * @param tryHarderCount The number of images which must pass using the try harder flag.
* @param rotation The rotation in degrees clockwise to use for this test.
*/
- protected void addTest(int mustPassCount, float rotation) {
- testResults.add(new TestResult(mustPassCount, rotation));
+ protected void addTest(int mustPassCount, int tryHarderCount, float rotation) {
+ testResults.add(new TestResult(mustPassCount, tryHarderCount, rotation));
}
protected File[] getImageFiles() {
return barcodeReader;
}
+ protected Hashtable<DecodeHintType, Object> getHints() {
+ return null;
+ }
+
public void testBlackBox() throws IOException {
assertFalse(testResults.isEmpty());
File[] imageFiles = getImageFiles();
- int[] passedCounts = new int[testResults.size()];
+ int testCount = testResults.size();
+ int[] passedCounts = new int[testCount];
+ int[] tryHarderCounts = new int[testCount];
for (File testImage : imageFiles) {
System.out.println("Starting " + testImage.getAbsolutePath());
testImageFileName.substring(0, testImageFileName.indexOf('.')) + ".txt");
String expectedText = readFileAsString(expectedTextFile);
- for (int x = 0; x < testResults.size(); x++) {
- if (doTestOneImage(image, testResults.get(x).getRotation(), expectedText)) {
+ for (int x = 0; x < testCount; x++) {
+ float rotation = testResults.get(x).getRotation();
+ BufferedImage rotatedImage = rotateImage(image, rotation);
+ MonochromeBitmapSource source = new BufferedImageMonochromeBitmapSource(rotatedImage);
+ if (decode(source, rotation, expectedText, false)) {
passedCounts[x]++;
}
+ if (decode(source, rotation, expectedText, true)) {
+ tryHarderCounts[x]++;
+ }
}
}
- for (int x = 0; x < testResults.size(); x++) {
- System.out.println("Rotation " + testResults.get(x).getRotation() + " degrees: " + passedCounts[x] +
- " of " + imageFiles.length + " images passed (" + testResults.get(x).getMustPassCount() +
+ // Print the results of all tests first
+ for (int x = 0; x < testCount; x++) {
+ System.out.println("Rotation " + testResults.get(x).getRotation() + " degrees:");
+ System.out.println(" " + passedCounts[x] + " of " + imageFiles.length + " images passed ("
+ + testResults.get(x).getMustPassCount() + " required)");
+ System.out.println(" " + tryHarderCounts[x] + " of " + imageFiles.length +
+ " images passed with try harder (" + testResults.get(x).getTryHarderCount() +
" required)");
- assertTrue("Rotation " + testResults.get(x).getRotation() + " degrees: Too many images failed",
+ }
+
+ // Then run through again and assert if any failed
+ for (int x = 0; x < testCount; x++) {
+ assertTrue("Rotation " + testResults.get(x).getRotation() +
+ " degrees: Too many images failed",
passedCounts[x] >= testResults.get(x).getMustPassCount());
+ assertTrue("Try harder, Rotation " + testResults.get(x).getRotation() +
+ " degrees: Too many images failed",
+ tryHarderCounts[x] >= testResults.get(x).getTryHarderCount());
}
}
- private boolean doTestOneImage(BufferedImage image, float rotationInDegrees, String expectedText) {
- BufferedImage rotatedImage = rotateImage(image, rotationInDegrees);
- MonochromeBitmapSource source = new BufferedImageMonochromeBitmapSource(rotatedImage);
+ private boolean decode(MonochromeBitmapSource source, float rotation, String expectedText,
+ boolean tryHarder) {
Result result;
+ String suffix = " (" + (tryHarder ? "try harder, " : "") + "rotation: " + rotation + ')';
+
try {
- result = barcodeReader.decode(source);
+ Hashtable<DecodeHintType, Object> hints = getHints();
+ if (tryHarder) {
+ if (hints == null) {
+ hints = TRY_HARDER_HINT;
+ } else {
+ hints.put(DecodeHintType.TRY_HARDER, Boolean.TRUE);
+ }
+ }
+ result = barcodeReader.decode(source, hints);
} catch (ReaderException re) {
- System.out.println(re + " (rotation: " + rotationInDegrees + ')');
+ System.out.println(re + suffix);
return false;
}
if (!expectedFormat.equals(result.getBarcodeFormat())) {
System.out.println("Format mismatch: expected '" + expectedFormat + "' but got '" +
- result.getBarcodeFormat() + "' (rotation: " + rotationInDegrees + ')');
+ result.getBarcodeFormat() + '\'' + suffix);
return false;
}
String resultText = result.getText();
if (!expectedText.equals(resultText)) {
System.out.println("Mismatch: expected '" + expectedText + "' but got '" + resultText +
- "' (rotation: " + rotationInDegrees + ')');
+ '\'' + suffix);
return false;
}
-
- // Try "try harder" mode
- try {
- result = barcodeReader.decode(source, TRY_HARDER_HINT);
- } catch (ReaderException re) {
- fail("Normal mode succeeded but \"try harder\" failed (rotation: " + rotationInDegrees + ')');
- return false;
- }
- if (!expectedFormat.equals(result.getBarcodeFormat())) {
- System.out.println("Try Harder Format mismatch: expected '" + expectedFormat + "' but got '" +
- result.getBarcodeFormat() + "' (rotation: " + rotationInDegrees + ')');
- } else if (!expectedText.equals(resultText)) {
- System.out.println("Try Harder Mismatch: expected '" + expectedText + "' but got '" +
- resultText + "' (rotation: " + rotationInDegrees + ')');
- }
return true;
}
private static String readFileAsString(File file) throws IOException {
StringBuilder result = new StringBuilder((int) file.length());
- InputStreamReader reader = new InputStreamReader(new FileInputStream(file), "UTF-8");
+ InputStreamReader reader = new InputStreamReader(new FileInputStream(file), Charset.forName("UTF8"));
try {
char[] buffer = new char[256];
int charsRead;
return original;
} else {
AffineTransform at = new AffineTransform();
- at.rotate(Math.toRadians(degrees), original.getWidth() / 2.0f, original.getHeight() / 2.0f);
+ at.rotate(Math.toRadians(degrees), original.getWidth() / 2.0, original.getHeight() / 2.0);
BufferedImageOp op = new AffineTransformOp(at, AffineTransformOp.TYPE_BICUBIC);
return op.filter(original, null);
}
projects / zxing.git / blobdiff