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package org.opencv.test.objdetect;
import java.util.List;
import org.opencv.core.Mat;
import org.opencv.objdetect.QRCodeDetector;
import org.opencv.imgcodecs.Imgcodecs;
import org.opencv.test.OpenCVTestCase;
import java.util.Arrays;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
public class QRCodeDetectorTest extends OpenCVTestCase {
private final static String ENV_OPENCV_TEST_DATA_PATH = "OPENCV_TEST_DATA_PATH";
private String testDataPath;
@Override
protected void setUp() throws Exception {
super.setUp();
// relys on https://developer.android.com/reference/java/lang/System
isTestCaseEnabled = System.getProperties().getProperty("java.vm.name") != "Dalvik";
if (isTestCaseEnabled) {
testDataPath = System.getenv(ENV_OPENCV_TEST_DATA_PATH);
if (testDataPath == null)
throw new Exception(ENV_OPENCV_TEST_DATA_PATH + " has to be defined!");
}
}
public void testDetectAndDecode() {
Mat img = Imgcodecs.imread(testDataPath + "/cv/qrcode/link_ocv.jpg");
assertFalse(img.empty());
QRCodeDetector detector = new QRCodeDetector();
assertNotNull(detector);
String output = detector.detectAndDecode(img);
assertEquals(output, "https://opencv.org/");
}
public void testDetectAndDecodeMulti() {
Mat img = Imgcodecs.imread(testDataPath + "/cv/qrcode/multiple/6_qrcodes.png");
assertFalse(img.empty());
QRCodeDetector detector = new QRCodeDetector();
assertNotNull(detector);
List < String > output = new ArrayList< String >();
boolean result = detector.detectAndDecodeMulti(img, output);
assertTrue(result);
assertEquals(output.size(), 6);
List < String > expectedResults = Arrays.asList("SKIP", "EXTRA", "TWO STEPS FORWARD", "STEP BACK", "QUESTION", "STEP FORWARD");
assertEquals(new HashSet<String>(output), new HashSet<String>(expectedResults));
}
}
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