ArrayImgOversizeTest.java

package net.imglib2.img.array;

import static org.junit.Assert.assertEquals;

import java.util.Random;

import net.imglib2.img.basictypeaccess.array.ArrayDataAccess;
import net.imglib2.img.basictypeaccess.array.LongArray;
import net.imglib2.type.logic.BitType;

import org.junit.Test;

public class ArrayImgOversizeTest
{

	@Test
	public void testOverSizedBitImage()
	{
		final ArrayImgFactory< BitType > factory = new ArrayImgFactory<>( new BitType() );

		final int numLongs = ( int ) Math.ceil( 1000 * 1000 / 64 );

//		ArrayImg< BitType, ? > img = factory.create( 1000, 1000 );
//		ArrayImg< BitType, LongArray > img = ArrayImgs.bits( 1000, 1000 );
		final ArrayImg< BitType, LongArray > img = ArrayImgs.bits( new LongArray( new long[ numLongs ] ), 1000, 1000 );
		final Random r = new Random( 42l );
		img.forEach( p -> {
			p.set( r.nextBoolean() );
		} );

		final long[] storage = ( long[] ) ( ( ArrayDataAccess< ? > ) img.update( null ) ).getCurrentStorageArray();

		final long[] sizes = new long[ img.numDimensions() ];
		img.dimensions( sizes );

		assertEquals( storage.length, numLongs );

	}
}