More coverage for Code93/39 writers, and for multiple barcode detection

core/src/test/java/com/google/zxing/common/AbstractBlackBoxTestCase.java

@@ -63,16 +63,20 @@ public abstract class AbstractBlackBoxTestCase extends Assert {
   private final BarcodeFormat expectedFormat;
   private final List<TestResult> testResults;
 
-  protected AbstractBlackBoxTestCase(String testBasePathSuffix,
-                                     Reader barcodeReader,
-                                     BarcodeFormat expectedFormat) {
+  public static Path buildTestBase(String testBasePathSuffix) {
     // A little workaround to prevent aggravation in my IDE
     Path testBase = Paths.get(testBasePathSuffix);
     if (!Files.exists(testBase)) {
       // try starting with 'core' since the test base is often given as the project root
       testBase = Paths.get("core").resolve(testBasePathSuffix);
     }
-    this.testBase = testBase;
+    return testBase;
+  }
+
+  protected AbstractBlackBoxTestCase(String testBasePathSuffix,
+                                     Reader barcodeReader,
+                                     BarcodeFormat expectedFormat) {
+    this.testBase = buildTestBase(testBasePathSuffix);
     this.barcodeReader = barcodeReader;
     this.expectedFormat = expectedFormat;
     testResults = new ArrayList<>();

core/src/test/java/com/google/zxing/common/BitMatrixTestCase.java

@@ -264,6 +264,15 @@ public final class BitMatrixTestCase extends Assert {
     }
   }
 
+  public static String matrixToString(BitMatrix result) {
+    assertEquals(1, result.getHeight());
+    StringBuilder builder = new StringBuilder(result.getWidth());
+    for (int i = 0; i < result.getWidth(); i++) {
+      builder.append(result.get(i, 0) ? '1' : '0');
+    }
+    return builder.toString();
+  }
+
   private static void testXOR(BitMatrix dataMatrix, BitMatrix flipMatrix, BitMatrix expectedMatrix) {
     BitMatrix matrix = dataMatrix.clone();
     matrix.xor(flipMatrix);

core/src/test/java/com/google/zxing/multi/MultiTestCase.java

@@ -0,0 +1,58 @@
+/*
+ * Copyright 2016 ZXing authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.zxing.multi;
+
+import javax.imageio.ImageIO;
+import java.awt.image.BufferedImage;
+import java.nio.file.Path;
+
+import com.google.zxing.BarcodeFormat;
+import com.google.zxing.BinaryBitmap;
+import com.google.zxing.BufferedImageLuminanceSource;
+import com.google.zxing.LuminanceSource;
+import com.google.zxing.MultiFormatReader;
+import com.google.zxing.Result;
+import com.google.zxing.common.AbstractBlackBoxTestCase;
+import com.google.zxing.common.HybridBinarizer;
+import org.junit.Assert;
+import org.junit.Test;
+
+public final class MultiTestCase extends Assert {
+
+  @Test
+  public void testMulti() throws Exception {
+    // Very basic test for now
+    Path testBase = AbstractBlackBoxTestCase.buildTestBase("src/test/resources/blackbox/multi-1");
+
+    Path testImage = testBase.resolve("1.png");
+    BufferedImage image = ImageIO.read(testImage.toFile());
+    LuminanceSource source = new BufferedImageLuminanceSource(image);
+    BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
+
+    MultipleBarcodeReader reader = new GenericMultipleBarcodeReader(new MultiFormatReader());
+    Result[] results = reader.decodeMultiple(bitmap);
+    assertNotNull(results);
+    assertEquals(2, results.length);
+
+    assertEquals("031415926531", results[0].getText());
+    assertEquals(BarcodeFormat.UPC_A, results[0].getBarcodeFormat());
+
+    assertEquals("www.airtable.com/jobs", results[1].getText());
+    assertEquals(BarcodeFormat.QR_CODE, results[1].getBarcodeFormat());
+  }
+
+}

core/src/test/java/com/google/zxing/multi/qrcode/MultiQRCodeTestCase.java

@@ -18,9 +18,7 @@ package com.google.zxing.multi.qrcode;
 
 import javax.imageio.ImageIO;
 import java.awt.image.BufferedImage;
-import java.nio.file.Files;
 import java.nio.file.Path;
-import java.nio.file.Paths;
 import java.util.HashSet;
 import java.util.Map;
 import java.util.Set;
@@ -31,6 +29,7 @@ import com.google.zxing.BufferedImageLuminanceSource;
 import com.google.zxing.LuminanceSource;
 import com.google.zxing.Result;
 import com.google.zxing.ResultMetadataType;
+import com.google.zxing.common.AbstractBlackBoxTestCase;
 import com.google.zxing.common.HybridBinarizer;
 import com.google.zxing.multi.MultipleBarcodeReader;
 import org.junit.Assert;
@@ -41,10 +40,7 @@ public final class MultiQRCodeTestCase extends Assert {
   @Test
   public void testMultiQRCodes() throws Exception {
     // Very basic test for now
-    Path testBase = Paths.get("src/test/resources/blackbox/multi-qrcode-1");
-    if (!Files.exists(testBase)) {
-      testBase = Paths.get("core").resolve(testBase);
-    }
+    Path testBase = AbstractBlackBoxTestCase.buildTestBase("src/test/resources/blackbox/multi-qrcode-1");
 
     Path testImage = testBase.resolve("1.png");
     BufferedImage image = ImageIO.read(testImage.toFile());

core/src/test/java/com/google/zxing/oned/CodaBarWriterTestCase.java

@@ -19,6 +19,7 @@ package com.google.zxing.oned;
 import com.google.zxing.BarcodeFormat;
 import com.google.zxing.WriterException;
 import com.google.zxing.common.BitMatrix;
+import com.google.zxing.common.BitMatrixTestCase;
 import org.junit.Assert;
 import org.junit.Test;
 
@@ -52,11 +53,7 @@ public final class CodaBarWriterTestCase extends Assert {
 
   private static void doTest(String input, CharSequence expected) throws WriterException {
     BitMatrix result = encode(input);
-    StringBuilder actual = new StringBuilder(result.getWidth());
-    for (int i = 0; i < result.getWidth(); i++) {
-      actual.append(result.get(i, 0) ? '1' : '0');
-    }
-    assertEquals(expected, actual.toString());
+    assertEquals(expected, BitMatrixTestCase.matrixToString(result));
   }
 
   private static BitMatrix encode(String input) throws WriterException {

core/src/test/java/com/google/zxing/oned/Code128WriterTestCase.java

@@ -16,6 +16,7 @@
 
 package com.google.zxing.oned;
 
+import com.google.zxing.common.BitMatrixTestCase;
 import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;
@@ -56,7 +57,7 @@ public class Code128WriterTestCase extends Assert {
 
     BitMatrix result = writer.encode(toEncode, BarcodeFormat.CODE_128, 0, 0);
 
-    String actual = matrixToString(result);
+    String actual = BitMatrixTestCase.matrixToString(result);
     assertEquals(expected, actual);
   }
 
@@ -68,7 +69,7 @@ public class Code128WriterTestCase extends Assert {
 
     BitMatrix result = writer.encode(toEncode, BarcodeFormat.CODE_128, 0, 0);
 
-    String actual = matrixToString(result);
+    String actual = BitMatrixTestCase.matrixToString(result);
     assertEquals(expected, actual);
   }
 
@@ -80,7 +81,7 @@ public class Code128WriterTestCase extends Assert {
 
     BitMatrix result = writer.encode(toEncode, BarcodeFormat.CODE_128, 0, 0);
 
-    String actual = matrixToString(result);
+    String actual = BitMatrixTestCase.matrixToString(result);
     assertEquals(expected, actual);
   }
 
@@ -104,15 +105,9 @@ public class Code128WriterTestCase extends Assert {
 
     BitMatrix result = writer.encode(toEncode, BarcodeFormat.CODE_128, 0, 0);
 
-    String actual = matrixToString(result);
+    String actual = BitMatrixTestCase.matrixToString(result);
     assertEquals(expected, actual);
   }
 
-  private static String matrixToString(BitMatrix result) {
-    StringBuilder builder = new StringBuilder(result.getWidth());
-    for (int i = 0; i < result.getWidth(); i++) {
-      builder.append(result.get(i, 0) ? '1' : '0');
-    }
-    return builder.toString();
-  }
+
 }

core/src/test/java/com/google/zxing/oned/Code39WriterTestCase.java

@@ -0,0 +1,44 @@
+/*
+ * Copyright 2016 ZXing authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.zxing.oned;
+
+import com.google.zxing.BarcodeFormat;
+import com.google.zxing.WriterException;
+import com.google.zxing.common.BitMatrix;
+import com.google.zxing.common.BitMatrixTestCase;
+import org.junit.Assert;
+import org.junit.Test;
+
+public final class Code39WriterTestCase extends Assert {
+
+  @Test
+  public void testEncode() throws WriterException {
+    doTest("ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789",
+           "000001001011011010110101001011010110100101101101101001010101011001011011010110010101" +
+           "011011001010101010011011011010100110101011010011010101011001101011010101001101011010" +
+           "100110110110101001010101101001101101011010010101101101001010101011001101101010110010" +
+           "101101011001010101101100101100101010110100110101011011001101010101001011010110110010" +
+           "110101010011011010101010011011010110100101011010110010101101101100101010101001101011" +
+           "01101001101010101100110101010100101101101101001011010101100101101010010110110100000");
+  }
+
+  private static void doTest(String input, CharSequence expected) throws WriterException {
+    BitMatrix result = new Code39Writer().encode(input, BarcodeFormat.CODE_39, 0, 0);
+    assertEquals(expected, BitMatrixTestCase.matrixToString(result));
+  }
+
+}

core/src/test/java/com/google/zxing/oned/Code93WriterTestCase.java

@@ -0,0 +1,43 @@
+/*
+ * Copyright 2016 ZXing authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.zxing.oned;
+
+import com.google.zxing.BarcodeFormat;
+import com.google.zxing.WriterException;
+import com.google.zxing.common.BitMatrix;
+import com.google.zxing.common.BitMatrixTestCase;
+import org.junit.Assert;
+import org.junit.Test;
+
+public final class Code93WriterTestCase extends Assert {
+
+  @Test
+  public void testEncode() throws WriterException {
+    doTest("ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789",
+           "000001010111101101010001101001001101000101100101001100100101100010101011010001011001" +
+           "001011000101001101001000110101010110001010011001010001101001011001000101101101101001" +
+           "101100101101011001101001101100101101100110101011011001011001101001101101001110101000" +
+           "101001010010001010001001010000101001010001001001001001000101010100001000100101000010" +
+           "10100111010101000010101011110100000");
+  }
+
+  private static void doTest(String input, CharSequence expected) throws WriterException {
+    BitMatrix result = new Code93Writer().encode(input, BarcodeFormat.CODE_93, 0, 0);
+    assertEquals(expected, BitMatrixTestCase.matrixToString(result));
+  }
+
+}

core/src/test/java/com/google/zxing/oned/EAN13WriterTestCase.java

@@ -19,6 +19,7 @@ package com.google.zxing.oned;
 import com.google.zxing.BarcodeFormat;
 import com.google.zxing.WriterException;
 import com.google.zxing.common.BitMatrix;
+import com.google.zxing.common.BitMatrixTestCase;
 import org.junit.Assert;
 import org.junit.Test;
 
@@ -29,11 +30,9 @@ public final class EAN13WriterTestCase extends Assert {
 
   @Test
   public void testEncode() throws WriterException {
-    CharSequence testStr = "00010100010110100111011001100100110111101001110101010110011011011001000010101110010011101000100101000";
+    String testStr = "00010100010110100111011001100100110111101001110101010110011011011001000010101110010011101000100101000";
     BitMatrix result = new EAN13Writer().encode("5901234123457", BarcodeFormat.EAN_13, testStr.length(), 0);
-    for (int i = 0; i < testStr.length(); i++) {
-      assertEquals("Element " + i,  testStr.charAt(i) == '1', result.get(i, 0));
-    }
+    assertEquals(testStr, BitMatrixTestCase.matrixToString(result));
   }
 
 }

core/src/test/java/com/google/zxing/oned/EAN8WriterTestCase.java

@@ -19,6 +19,7 @@ package com.google.zxing.oned;
 import com.google.zxing.BarcodeFormat;
 import com.google.zxing.WriterException;
 import com.google.zxing.common.BitMatrix;
+import com.google.zxing.common.BitMatrixTestCase;
 import org.junit.Assert;
 import org.junit.Test;
 
@@ -29,11 +30,9 @@ public final class EAN8WriterTestCase extends Assert {
 
   @Test
   public void testEncode() throws WriterException {
-    CharSequence testStr = "0001010001011010111101111010110111010101001110111001010001001011100101000";
+    String testStr = "0001010001011010111101111010110111010101001110111001010001001011100101000";
     BitMatrix result = new EAN8Writer().encode("96385074", BarcodeFormat.EAN_8, testStr.length(), 0);
-    for (int i = 0; i < testStr.length(); i++) {
-      assertEquals("Element " + i, testStr.charAt(i) == '1', result.get(i, 0));
-    }
+    assertEquals(testStr, BitMatrixTestCase.matrixToString(result));
   }
 
 }

core/src/test/java/com/google/zxing/oned/UPCAWriterTestCase.java

@@ -20,6 +20,7 @@ import com.google.zxing.BarcodeFormat;
 import com.google.zxing.WriterException;
 import com.google.zxing.common.BitMatrix;
 
+import com.google.zxing.common.BitMatrixTestCase;
 import org.junit.Assert;
 import org.junit.Test;
 
@@ -30,20 +31,16 @@ public final class UPCAWriterTestCase extends Assert {
 
   @Test
   public void testEncode() throws WriterException {
-    CharSequence testStr = "00010101000110110111011000100010110101111011110101010111001011101001001110110011011011001011100101000";
+    String testStr = "00010101000110110111011000100010110101111011110101010111001011101001001110110011011011001011100101000";
     BitMatrix result = new UPCAWriter().encode("485963095124", BarcodeFormat.UPC_A, testStr.length(), 0);
-    for (int i = 0; i < testStr.length(); i++) {
-      assertEquals("Element " + i,  testStr.charAt(i) == '1', result.get(i, 0));
-    }
+    assertEquals(testStr, BitMatrixTestCase.matrixToString(result));
   }
 
   @Test
   public void testAddChecksumAndEncode() throws WriterException {
-    CharSequence testStr = "00010100110010010011011110101000110110001010111101010100010010010001110100111001011001101101100101000";
+    String testStr = "00010100110010010011011110101000110110001010111101010100010010010001110100111001011001101101100101000";
     BitMatrix result = new UPCAWriter().encode("12345678901", BarcodeFormat.UPC_A, testStr.length(), 0);
-    for (int i = 0; i < testStr.length(); i++) {
-      assertEquals("Element " + i,  testStr.charAt(i) == '1', result.get(i, 0));
-    }
+    assertEquals(testStr, BitMatrixTestCase.matrixToString(result));
   }
 
 }

core/src/test/java/com/google/zxing/oned/rss/expanded/RSSExpandedImage2binaryTestCase.java

@@ -28,9 +28,7 @@ package com.google.zxing.oned.rss.expanded;
 
 import java.awt.image.BufferedImage;
 import java.io.IOException;
-import java.nio.file.Files;
 import java.nio.file.Path;
-import java.nio.file.Paths;
 import java.util.List;
 
 import javax.imageio.ImageIO;
@@ -39,6 +37,7 @@ import com.google.zxing.BinaryBitmap;
 import com.google.zxing.BufferedImageLuminanceSource;
 import com.google.zxing.NotFoundException;
 import com.google.zxing.ReaderException;
+import com.google.zxing.common.AbstractBlackBoxTestCase;
 import com.google.zxing.common.BitArray;
 import com.google.zxing.common.GlobalHistogramBinarizer;
 import org.junit.Assert;
@@ -176,11 +175,7 @@ public final class RSSExpandedImage2binaryTestCase extends Assert {
 
   private static void assertCorrectImage2binary(String fileName, String expected)
       throws IOException, NotFoundException {
-    Path path = Paths.get("src/test/resources/blackbox/rssexpanded-1/").resolve(fileName);
-    if (!Files.exists(path)) {
-      // Support running from project root too
-      path = Paths.get("core").resolve(path);
-    }
+    Path path = AbstractBlackBoxTestCase.buildTestBase("src/test/resources/blackbox/rssexpanded-1/").resolve(fileName);
 
     BufferedImage image = ImageIO.read(path.toFile());
     BinaryBitmap binaryMap = new BinaryBitmap(new GlobalHistogramBinarizer(new BufferedImageLuminanceSource(image)));

core/src/test/java/com/google/zxing/oned/rss/expanded/RSSExpandedImage2resultTestCase.java

@@ -33,9 +33,7 @@ package com.google.zxing.oned.rss.expanded;
 
 import java.awt.image.BufferedImage;
 import java.io.IOException;
-import java.nio.file.Files;
 import java.nio.file.Path;
-import java.nio.file.Paths;
 import java.util.HashMap;
 
 import javax.imageio.ImageIO;
@@ -49,6 +47,7 @@ import com.google.zxing.Result;
 import com.google.zxing.client.result.ExpandedProductParsedResult;
 import com.google.zxing.client.result.ParsedResult;
 import com.google.zxing.client.result.ResultParser;
+import com.google.zxing.common.AbstractBlackBoxTestCase;
 import com.google.zxing.common.BitArray;
 import com.google.zxing.common.GlobalHistogramBinarizer;
 
@@ -77,11 +76,7 @@ public final class RSSExpandedImage2resultTestCase extends Assert {
 
   private static void assertCorrectImage2result(String fileName, ExpandedProductParsedResult expected)
       throws IOException, NotFoundException {
-    Path path = Paths.get("src/test/resources/blackbox/rssexpanded-1/").resolve(fileName);
-    if (!Files.exists(path)) {
-      // Support running from project root too
-      path = Paths.get("core").resolve(path);
-    }
+    Path path = AbstractBlackBoxTestCase.buildTestBase("src/test/resources/blackbox/rssexpanded-1/").resolve(fileName);
 
     BufferedImage image = ImageIO.read(path.toFile());
     BinaryBitmap binaryMap = new BinaryBitmap(new GlobalHistogramBinarizer(new BufferedImageLuminanceSource(image)));

core/src/test/java/com/google/zxing/oned/rss/expanded/RSSExpandedImage2stringTestCase.java

@@ -28,9 +28,7 @@ package com.google.zxing.oned.rss.expanded;
 
 import java.awt.image.BufferedImage;
 import java.io.IOException;
-import java.nio.file.Files;
 import java.nio.file.Path;
-import java.nio.file.Paths;
 
 import javax.imageio.ImageIO;
 
@@ -40,6 +38,7 @@ import com.google.zxing.BufferedImageLuminanceSource;
 import com.google.zxing.NotFoundException;
 import com.google.zxing.ReaderException;
 import com.google.zxing.Result;
+import com.google.zxing.common.AbstractBlackBoxTestCase;
 import com.google.zxing.common.BitArray;
 import com.google.zxing.common.GlobalHistogramBinarizer;
 import org.junit.Assert;
@@ -189,11 +188,7 @@ public final class RSSExpandedImage2stringTestCase extends Assert {
 
   private static void assertCorrectImage2string(String fileName, String expected)
       throws IOException, NotFoundException {
-    Path path = Paths.get("src/test/resources/blackbox/rssexpanded-1/").resolve(fileName);
-    if (!Files.exists(path)) {
-      // Support running from project root too
-      path = Paths.get("core").resolve(path);
-    }
+    Path path = AbstractBlackBoxTestCase.buildTestBase("src/test/resources/blackbox/rssexpanded-1/").resolve(fileName);
 
     BufferedImage image = ImageIO.read(path.toFile());
     BinaryBitmap binaryMap =

core/src/test/java/com/google/zxing/oned/rss/expanded/RSSExpandedInternalTestCase.java

@@ -28,9 +28,7 @@ package com.google.zxing.oned.rss.expanded;
 
 import java.awt.image.BufferedImage;
 import java.io.IOException;
-import java.nio.file.Files;
 import java.nio.file.Path;
-import java.nio.file.Paths;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -39,6 +37,7 @@ import javax.imageio.ImageIO;
 import com.google.zxing.BinaryBitmap;
 import com.google.zxing.BufferedImageLuminanceSource;
 import com.google.zxing.NotFoundException;
+import com.google.zxing.common.AbstractBlackBoxTestCase;
 import com.google.zxing.common.BitArray;
 import com.google.zxing.common.GlobalHistogramBinarizer;
 import com.google.zxing.oned.rss.DataCharacter;
@@ -145,12 +144,7 @@ public final class RSSExpandedInternalTestCase extends Assert {
   }
 
   private static BufferedImage readImage(String fileName) throws IOException {
-    Path path = Paths.get("src/test/resources/blackbox/rssexpanded-1/").resolve(fileName);
-    if (!Files.exists(path)) {
-      // Support running from project root too
-      path = Paths.get("core").resolve(path);
-    }
-
+    Path path = AbstractBlackBoxTestCase.buildTestBase("src/test/resources/blackbox/rssexpanded-1/").resolve(fileName);
     return ImageIO.read(path.toFile());
   }
 

core/src/test/java/com/google/zxing/oned/rss/expanded/TestCaseUtil.java

@@ -28,14 +28,13 @@ package com.google.zxing.oned.rss.expanded;
 
 import java.awt.image.BufferedImage;
 import java.io.IOException;
-import java.nio.file.Files;
 import java.nio.file.Path;
-import java.nio.file.Paths;
 
 import javax.imageio.ImageIO;
 
 import com.google.zxing.BinaryBitmap;
 import com.google.zxing.BufferedImageLuminanceSource;
+import com.google.zxing.common.AbstractBlackBoxTestCase;
 import com.google.zxing.common.GlobalHistogramBinarizer;
 
 final class TestCaseUtil {
@@ -44,11 +43,7 @@ final class TestCaseUtil {
   }
 
   private static BufferedImage getBufferedImage(String path) throws IOException {
-    Path file = Paths.get(path);
-    if (!Files.exists(file)) {
-      // Support running from project root too
-      file = Paths.get("core").resolve(file);
-    }
+    Path file = AbstractBlackBoxTestCase.buildTestBase(path);
     return ImageIO.read(file.toFile());
   }