/*
 * #%L
 * ImageJ OPS: a framework for reusable algorithms.
 * %%
 * Copyright (C) 2014 Board of Regents of the University of
 * Wisconsin-Madison and University of Konstanz.
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package imagej.ops;

import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;
import imagej.module.Module;
import net.imglib2.type.numeric.real.DoubleType;

import org.junit.Test;
import org.scijava.plugin.Plugin;

/**
 * Tests {@link OpMatchingService}.
 * 
 * @author Curtis Rueden
 */
public class OpMatchingServiceTest extends AbstractOpTest {

	/** Tests {@link OpMatchingService#findModule(String, Class, Object...)}. */
	@Test
	public void testFindModule() {
		final DoubleType value = new DoubleType(123.456);

		final Module moduleByName = matcher.findModule("nan", null, value);
		assertSame(value, moduleByName.getInput("arg"));

		assertFalse(Double.isNaN(value.get()));
		moduleByName.run();
		assertTrue(Double.isNaN(value.get()));

		value.set(987.654);
		final Module moduleByType = matcher.findModule(null, NaNOp.class, value);
		assertSame(value, moduleByType.getInput("arg"));

		assertFalse(Double.isNaN(value.get()));
		moduleByType.run();
		assertTrue(Double.isNaN(value.get()));
	}

	// -- Helper classes --

	/** A test {@link Op}. */
	@Plugin(type = Op.class, name = "nan")
	public static class NaNOp extends AbstractInplaceFunction<DoubleType> {

		@Override
		public DoubleType compute(final DoubleType argument) {
			argument.set(Double.NaN);
			return argument;
		}

	}

}

Add unit tests for the OpMatchingService