Add simple test to try codecov.io

core/src/test/java/com/google/zxing/PlanarYUVLuminanceSourceTestCase.java

@@ -0,0 +1,66 @@
+/*
+ * Copyright 2014 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;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public final class PlanarYUVLuminanceSourceTestCase extends Assert {
+
+  private static final byte[] YUV = {
+       0,  1,  1,  2,  3,  5,
+       8, 13, 21, 34, 55, 89,
+       0,  -1,  -1,  -2,  -3,  -5,
+      -8, -13, -21, -34, -55, -89,
+      127, 127, 127, 127, 127, 127,
+      127, 127, 127, 127, 127, 127,
+  };
+  private static final int COLS = 6;
+  private static final int ROWS = 4;
+  private static final byte[] Y = new byte[COLS * ROWS];
+  static {
+    System.arraycopy(YUV, 0, Y, 0, Y.length);
+  }
+
+  @Test
+  public void testNoCrop() {
+    PlanarYUVLuminanceSource source =
+        new PlanarYUVLuminanceSource(YUV, COLS, ROWS, 0, 0, COLS, ROWS, false);
+    assertEquals(Y, 0, source.getMatrix(), 0, Y.length);
+    for (int r = 0; r < ROWS; r++) {
+      assertEquals(Y, r * COLS, source.getRow(r, null), 0, COLS);
+    }
+  }
+
+  @Test
+  public void testCrop() {
+    PlanarYUVLuminanceSource source =
+        new PlanarYUVLuminanceSource(YUV, COLS, ROWS, 1, 1, COLS-2, ROWS-2, false);
+    for (int r = 0; r < ROWS-2; r++) {
+      assertEquals(Y, (r + 1) * COLS + 1, source.getRow(r, null), 0, COLS-2);
+    }
+  }
+
+  private static void assertEquals(byte[] expected, int expectedFrom,
+                                   byte[] actual, int actualFrom,
+                                   int length) {
+    for (int i = 0; i < length; i++) {
+      assertEquals(expected[expectedFrom + i], actual[actualFrom + i]);
+    }
+  }
+
+}