/**
 * Copyright (C) 2010-2017 Gordon Fraser, Andrea Arcuri and EvoSuite
 * contributors
 *
 * This file is part of EvoSuite.
 *
 * EvoSuite is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3.0 of the License, or
 * (at your option) any later version.
 *
 * EvoSuite is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with EvoSuite. If not, see <http://www.gnu.org/licenses/>.
 */
package org.evosuite.coverage.exception;

import com.examples.with.different.packagename.coverage.ImplicitAndExplicitExceptionInSameMethod;
import org.evosuite.EvoSuite;
import org.evosuite.Properties;
import org.evosuite.Properties.Criterion;
import org.evosuite.SystemTestBase;
import org.evosuite.ga.metaheuristics.GeneticAlgorithm;
import org.evosuite.statistics.OutputVariable;
import org.evosuite.statistics.RuntimeVariable;
import org.evosuite.statistics.backend.DebugStatisticsBackend;
import org.evosuite.testsuite.TestSuiteChromosome;
import org.junit.After;
import org.junit.Assert;
import org.junit.Test;

import com.examples.with.different.packagename.ImplicitExplicitException;

import java.util.Map;


public class ImplicitExplicitExceptionsSystemTest extends SystemTestBase {

    private static final Criterion[] defaultCriterion = Properties.CRITERION;
    
    private static boolean defaultArchive = Properties.TEST_ARCHIVE;

	@After
	public void resetProperties() {
		Properties.CRITERION = defaultCriterion;
		Properties.TEST_ARCHIVE = defaultArchive;
	}

	@Test
	public void testExceptionFitness_NoArchive() {
		//archive should have no impact
		Properties.TEST_ARCHIVE = false;
		testExceptionFitness();
	}

	@Test
	public void testExceptionFitness_WithArchive() {
		Properties.TEST_ARCHIVE = true;
		testExceptionFitness();
	}


	private void testExceptionFitness() {
		EvoSuite evosuite = new EvoSuite();

		String targetClass = ImplicitExplicitException.class.getCanonicalName();
		
		Properties.TARGET_CLASS = targetClass;
		Properties.CRITERION = new Criterion[]{Properties.Criterion.EXCEPTION};
		Properties.OUTPUT_VARIABLES = ""+
				RuntimeVariable.Explicit_MethodExceptions + "," +
				RuntimeVariable.Explicit_TypeExceptions + "," +
				RuntimeVariable.Implicit_MethodExceptions +"," +
				RuntimeVariable.Implicit_TypeExceptions;
		
		String[] command = new String[] { "-generateSuite", "-class", targetClass };

		Object result = evosuite.parseCommandLine(command);
		GeneticAlgorithm<?> ga = getGAFromResult(result);
		TestSuiteChromosome best = (TestSuiteChromosome) ga.getBestIndividual();
		System.out.println("EvolvedTestSuite:\n" + best);

		double fitness = best.getFitness();
		/*
		 * there are 2 undeclared exceptions (both implicit and explicit),
		 * and 3 declared: so fit = 1 / (1+5)
		 */
		Assert.assertEquals("Wrong fitness: ", 1d / 6d, fitness, 0.0000001);

        Map<String, OutputVariable<?>> map = DebugStatisticsBackend.getLatestWritten();
        Assert.assertNotNull(map);
        Assert.assertEquals(1 , map.get(RuntimeVariable.Explicit_MethodExceptions.toString()).getValue());
        Assert.assertEquals(1 , map.get(RuntimeVariable.Explicit_TypeExceptions.toString()).getValue());
        Assert.assertEquals(1 , map.get(RuntimeVariable.Implicit_MethodExceptions.toString()).getValue());
        Assert.assertEquals(1 , map.get(RuntimeVariable.Implicit_TypeExceptions.toString()).getValue());
	}

	@Test
	public void testImplicitAndExplicitExceptionInSameMethod() {
		EvoSuite evosuite = new EvoSuite();

		String targetClass = ImplicitAndExplicitExceptionInSameMethod.class.getCanonicalName();

		Properties.TARGET_CLASS = targetClass;
		Properties.CRITERION = new Criterion[]{Properties.Criterion.EXCEPTION};

		String[] command = new String[] { "-generateSuite", "-class", targetClass };

		Object result = evosuite.parseCommandLine(command);
		GeneticAlgorithm<?> ga = getGAFromResult(result);
		TestSuiteChromosome best = (TestSuiteChromosome) ga.getBestIndividual();
		System.out.println("EvolvedTestSuite:\n" + best);

		double fitness = best.getFitness();
		/*
		 * there are 2 undeclared exceptions (both implicit and explicit).
		 * there are also 2 declared, but same type and same method, so count as 1
		 *
		 * fit = 1 / (1+3)
		 *
		 */
		Assert.assertEquals("Wrong fitness: ", 1d / 4d, fitness, 0.001);
	}

}