datamatrix reader

src/datamatrix/data_matrix_writer_test_case.rs

@@ -0,0 +1,74 @@
+/*
+ * 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.
+ * 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.datamatrix;
+
+import com.google.zxing.BarcodeFormat;
+import com.google.zxing.EncodeHintType;
+import com.google.zxing.common.BitMatrix;
+import com.google.zxing.datamatrix.encoder.SymbolShapeHint;
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.util.EnumMap;
+import java.util.Map;
+
+/**
+ * @author satorux@google.com (Satoru Takabayashi) - creator
+ * @author dswitkin@google.com (Daniel Switkin) - ported and expanded from C++
+ */
+public final class DataMatrixWriterTestCase extends Assert {
+
+  @Test
+  public void testDataMatrixImageWriter() {
+
+    Map<EncodeHintType,Object> hints = new EnumMap<>(EncodeHintType.class);
+    hints.put(EncodeHintType.DATA_MATRIX_SHAPE, SymbolShapeHint.FORCE_SQUARE);
+
+    int bigEnough = 64;
+    DataMatrixWriter writer = new DataMatrixWriter();
+    BitMatrix matrix = writer.encode("Hello Google", BarcodeFormat.DATA_MATRIX, bigEnough, bigEnough, hints);
+    assertNotNull(matrix);
+    assertTrue(bigEnough >= matrix.getWidth());
+    assertTrue(bigEnough >= matrix.getHeight());
+  }
+
+  @Test
+  public void testDataMatrixWriter() {
+
+    Map<EncodeHintType,Object> hints = new EnumMap<>(EncodeHintType.class);
+    hints.put(EncodeHintType.DATA_MATRIX_SHAPE, SymbolShapeHint.FORCE_SQUARE);
+
+    int bigEnough = 14;
+    DataMatrixWriter writer = new DataMatrixWriter();
+    BitMatrix matrix = writer.encode("Hello Me", BarcodeFormat.DATA_MATRIX, bigEnough, bigEnough, hints);
+    assertNotNull(matrix);
+    assertEquals(bigEnough, matrix.getWidth());
+    assertEquals(bigEnough, matrix.getHeight());
+  }
+
+  @Test
+  public void testDataMatrixTooSmall() {
+    // The DataMatrix will not fit in this size, so the matrix should come back bigger
+    int tooSmall = 8;
+    DataMatrixWriter writer = new DataMatrixWriter();
+    BitMatrix matrix = writer.encode("http://www.google.com/", BarcodeFormat.DATA_MATRIX, tooSmall, tooSmall, null);
+    assertNotNull(matrix);
+    assertTrue(tooSmall < matrix.getWidth());
+    assertTrue(tooSmall < matrix.getHeight());
+  }
+
+}