/*
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 * Java implementation of the SciJava Ops matching engine.
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 * Copyright (C) 2016 - 2024 SciJava developers.
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 * modification, are permitted provided that the following conditions are met:
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package org.scijava.ops.engine.util;

import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.Test;
import org.scijava.function.Computers;
import org.scijava.ops.api.OpBuilder;
import org.scijava.ops.engine.AbstractTestEnvironment;
import org.scijava.ops.engine.math.Add;
import org.scijava.ops.engine.math.Sqrt;
import org.scijava.types.Nil;

public class ComputersTest extends AbstractTestEnvironment {

	@BeforeAll
	public static void addNeededOps() {
		ops.register(new Sqrt());
		ops.register(new Add());
	}

	private static Nil<double[]> nilDoubleArray = new Nil<>() {};

	@Test
	public void testUnaryComputers() {
		Computers.Arity1<double[], double[]> sqrtComputer = OpBuilder.matchComputer(
			ops, "math.sqrt", nilDoubleArray, nilDoubleArray);

		double[] result = new double[3];
		sqrtComputer.compute(new double[] { 4.0, 100.0, 25.0 }, result);
		arrayEquals(result, 2d, 1d, 5d);
	}

	@Test
	public void testBinaryComputers() {
		Computers.Arity2<double[], double[], double[]> addComputer = //
			OpBuilder.matchComputer(ops, "math.add", nilDoubleArray, nilDoubleArray,
				nilDoubleArray);

		double[] result = new double[3];
		addComputer.compute(new double[] { 4.0, 100.0, 25.0 }, new double[] { 4d,
			10d, 1.5 }, result);
		arrayEquals(result, 8d, 110d, 26.5);
	}
}
