Merge pull request #31 from stelfrich/randomaccessiblepair-test

Add RandomAccessiblePair randomAccess test

Author: hanslovsky

src/test/java/net/imglib2/algorithm/neighborhood/RandomAccessiblePairWithNeighborhoodTest.java

@@ -0,0 +1,78 @@
+/*
+ * #%L
+ * ImgLib2: a general-purpose, multidimensional image processing library.
+ * %%
+ * Copyright (C) 2009 - 2016 Tobias Pietzsch, Stephan Preibisch, Stephan Saalfeld,
+ * John Bogovic, Albert Cardona, Barry DeZonia, Christian Dietz, Jan Funke,
+ * Aivar Grislis, Jonathan Hale, Grant Harris, Stefan Helfrich, Mark Hiner,
+ * Martin Horn, Steffen Jaensch, Lee Kamentsky, Larry Lindsey, Melissa Linkert,
+ * Mark Longair, Brian Northan, Nick Perry, Curtis Rueden, Johannes Schindelin,
+ * Jean-Yves Tinevez and Michael Zinsmaier.
+ * %%
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ * #L%
+ */
+package net.imglib2.algorithm.neighborhood;
+
+import net.imglib2.Cursor;
+import net.imglib2.FinalDimensions;
+import net.imglib2.RandomAccess;
+import net.imglib2.RandomAccessible;
+import net.imglib2.RandomAccessibleInterval;
+import net.imglib2.img.Img;
+import net.imglib2.img.array.ArrayImgFactory;
+import net.imglib2.type.numeric.integer.ByteType;
+import net.imglib2.util.Pair;
+import net.imglib2.view.Views;
+
+import org.junit.Test;
+
+public class RandomAccessiblePairWithNeighborhoodTest
+{
+
+	@Test
+	public void testRandomAccessOnPair()
+	{
+		// Extend input with Views.extend()
+		Img< ByteType > in = new ArrayImgFactory< ByteType >().create( new FinalDimensions( 3, 3 ), new ByteType() );
+		RandomAccessibleInterval< ByteType > extendedIn = Views.interval( Views.extendBorder( in ), in );
+
+		// Create RandomAccessiblePair
+		final RandomAccessible< Neighborhood< ByteType > > safe = new RectangleShape( //
+				1,
+				false ).neighborhoodsRandomAccessibleSafe( extendedIn );
+		RandomAccessible< Pair< Neighborhood< ByteType >, ByteType > > pair = Views.pair( safe, extendedIn );
+
+		// Set position out of bounds
+		RandomAccess< Pair< Neighborhood< ByteType >, ByteType > > randomAccess = pair.randomAccess();
+		randomAccess.setPosition( new int[] { 0, 0 } );
+
+		// Get value from Neighborhood via RandomAccessiblePair
+		Pair< Neighborhood< ByteType >, ByteType > pair2 = randomAccess.get();
+		Neighborhood< ByteType > neighborhood = pair2.getA();
+		Cursor< ByteType > cursor = neighborhood.cursor();
+
+		// Tries to access (-1, -1) of the source
+		cursor.next().getRealDouble();
+	}
+
+}