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 * Java implementation of the SciJava Ops matching engine.
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package org.scijava.ops.engine.matcher.adapt;

import java.util.function.BiFunction;

import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.Test;
import org.scijava.ops.api.Ops;
import org.scijava.ops.engine.AbstractTestEnvironment;
import org.scijava.ops.engine.adapt.functional.FunctionsToComputers;
import org.scijava.ops.engine.copy.CopyOpCollection;
import org.scijava.ops.spi.OpCollection;
import org.scijava.ops.spi.OpMethod;

public class OpAdaptationInfoTest extends AbstractTestEnvironment implements
	OpCollection
{

	@BeforeAll
	public static void addNeededOps() {
		ops.register(new OpAdaptationInfoTest());
		ops.register(new CopyOpCollection());
		ops.register(new FunctionsToComputers.Function2ToComputer2<>());
	}

	private static final String TEST_DESC = "This is an Op that is being adapted";

	@OpMethod( //
		names = "test.adaptationDescription", //
		type = BiFunction.class, //
		description = TEST_DESC //
	)
	public static double[] adaptableOp(final Double t, final Double u) {
		return new double[] { t, u };
	}

	@Test
	public void testAdaptedDescription() {
		// Match the above Op as a Computer
		var adapted = ops.op("test.adaptationDescription") //
			.inType(Double.class, Double.class) //
			.outType(double[].class) //
			.computer();
		var info = Ops.info(adapted);
		Assertions.assertInstanceOf(OpAdaptationInfo.class, info);
		Assertions.assertEquals(TEST_DESC, info.description());
		String expected =
			"org.scijava.ops.engine.matcher.adapt.OpAdaptationInfoTest.adaptableOp(java.lang.Double,java.lang.Double)\n\t" +
				"Adaptor: org.scijava.ops.engine.adapt.functional.FunctionsToComputers$Function2ToComputer2\n\t\t" +
				"Depends upon: org.scijava.ops.engine.copy.CopyOpCollection$copyDoubleArray\n\t" //
				+ TEST_DESC + "\n\t" //
				+ "> input1 : java.lang.Double\n\t" //
				+ "> input2 : java.lang.Double\n\t" //
				+ "> output1 : @CONTAINER double[]";
		String actual = adapted.toString();
		Assertions.assertEquals(expected, actual);
	}
}
