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 * ImageJ software for multidimensional image processing and analysis.
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 * Wisconsin-Madison, University of Konstanz and Brian Northan.
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package net.imagej.ops.arithmetic.real;

import static org.junit.Assert.assertEquals;
import net.imagej.ops.AbstractOpTest;
import net.imglib2.type.numeric.real.DoubleType;

import org.junit.Test;

/**
 * Tests {@link RealArccsc}.
 * 
 * @author Alison Walter
 * @author Curtis Rueden
 */
public class RealArccscTest extends AbstractOpTest {

	@Test
	public void testArccsc() {
		assertArccsc(-1, -Math.PI/2);
		assertArccsc(1, Math.PI/2);
		assertArccsc(2, Math.PI/6);
		assertArccsc(-2, -Math.PI/6);
		assertArccsc((2*Math.sqrt(3))/3, Math.PI/3);
		assertArccsc(-(2*Math.sqrt(3))/3, -Math.PI/3);
	}

	private void assertArccsc(double i, double o) {
		final DoubleType in = new DoubleType(i);
		final DoubleType out = ops.math().arccsc(in.createVariable(), in);
		assertEquals(o, out.get(), 1e-15);
	}

}

Add test for RealArccsc functionality
Add test for RealArccsc functionality
