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 * Image processing operations for SciJava Ops.
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package org.scijava.ops.image.transform.extendMirrorDoubleView;

import static org.junit.jupiter.api.Assertions.assertEquals;

import java.util.function.Function;

import org.scijava.ops.image.AbstractOpTest;
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.real.DoubleType;
import net.imglib2.view.Views;

import org.junit.jupiter.api.Test;
import org.scijava.ops.api.OpBuilder;
import org.scijava.types.Nil;

/**
 * Tests {@link org.scijava.ops.image.Ops.Transform.ExtendMirrorDoubleView} ops.
 * <p>
 * This test only checks if the op call works with all parameters and that the
 * result is equal to that of the {@link Views} method call. It is not a
 * correctness test of {@link Views} itself.
 * </p>
 *
 * @author Tim-Oliver Buchholz (University of Konstanz)
 */
public class ExtendMirrorDoubleViewTest extends AbstractOpTest {

	Nil<RandomAccessibleInterval<DoubleType>> raiNil =
		new Nil<RandomAccessibleInterval<DoubleType>>()
		{};

	@Test
	public void testExtendMirrorDouble() {
		Function<RandomAccessibleInterval<DoubleType>, RandomAccessible<DoubleType>> extendFunc =
			OpBuilder.matchFunction(ops, "transform.extendMirrorDoubleView", raiNil,
				new Nil<RandomAccessible<DoubleType>>()
				{});

		Img<DoubleType> img = new ArrayImgFactory<>(new DoubleType()).create(
			new int[] { 10, 10 });

		RandomAccess<DoubleType> il2 = Views.extendMirrorDouble(img).randomAccess();

		RandomAccess<DoubleType> opr = extendFunc.apply(img).randomAccess();

		il2.setPosition(new int[] { -1, -1 });
		opr.setPosition(new int[] { -1, -1 });

		assertEquals(il2.get().get(), opr.get().get(), 1e-10);

		il2.setPosition(new int[] { 11, 11 });
		opr.setPosition(new int[] { 11, 11 });

		assertEquals(il2.get().get(), opr.get().get(), 1e-10);
	}
}
