IncoherentRestrictionsTest.java

/*
 * Copyright 2010 Red Hat, Inc. and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.drools.verifier.incoherence;

import org.drools.core.base.RuleNameMatchesAgendaFilter;
import org.drools.verifier.DefaultVerifierConfiguration;
import org.drools.verifier.TestBaseOld;
import org.drools.verifier.Verifier;
import org.drools.verifier.builder.ScopesAgendaFilter;
import org.drools.verifier.builder.VerifierBuilder;
import org.drools.verifier.builder.VerifierBuilderFactory;
import org.drools.verifier.components.Pattern;
import org.drools.verifier.data.VerifierReport;
import org.drools.verifier.data.VerifierReportFactory;
import org.drools.verifier.report.components.Severity;
import org.drools.verifier.report.components.VerifierMessage;
import org.drools.verifier.report.components.VerifierMessageBase;
import org.junit.Test;
import org.kie.api.runtime.KieSession;
import org.kie.internal.io.ResourceFactory;
import org.kie.api.io.ResourceType;

import java.io.StringReader;
import java.util.Collection;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;

import static org.junit.Assert.*;

public class IncoherentRestrictionsTest extends TestBaseOld {

    @Test
    public void testApprovedTrueAndNotTrue() {
        VerifierBuilder vBuilder = VerifierBuilderFactory.newVerifierBuilder();

        // Check that the builder works.
        assertFalse(vBuilder.hasErrors());
        assertEquals(0,
                     vBuilder.getErrors().size());

        String str = "";
        str += "package mortgages\n";
        str += "rule \"Bankruptcy history\"\n";
        str += "salience 10\n";
        str += "dialect \"mvel\"\n";
        str += "when\n";
        str += "Applicant( approved == \"true\" , approved != \"true\" )\n";
        str += "then\n";
        str += "end";

        DefaultVerifierConfiguration conf = new DefaultVerifierConfiguration();
        Verifier verifier = VerifierBuilderFactory.newVerifierBuilder().newVerifier(conf);
        verifier.addResourcesToVerify(ResourceFactory.newReaderResource(new StringReader(str)),
                                      ResourceType.DRL);

        assertFalse(verifier.hasErrors());
        assertEquals(0,
                     verifier.getErrors().size());

        boolean works = verifier.fireAnalysis(new ScopesAgendaFilter(true,
                                                                     ScopesAgendaFilter.VERIFYING_SCOPE_KNOWLEDGE_PACKAGE));

        assertTrue(works);

        VerifierReport result = verifier.getResult();
        assertNotNull(result);

        assertEquals(3,
                     result.getBySeverity(Severity.ERROR).size());
        assertEquals(1,
                     result.getBySeverity(Severity.WARNING).size());
        assertEquals(0,
                     result.getBySeverity(Severity.NOTE).size());

    }

    @Test
    public void testIncoherentLiteralRestrictionsInSubPattern() throws Exception {
        KieSession session = getStatelessKieSession(this.getClass().getResourceAsStream("Restrictions.drl"));

        VerifierReport result = VerifierReportFactory.newVerifierReport();
        Collection<? extends Object> testData = getTestData(getClass().getResourceAsStream("RestrictionsTest.drl"),
                                                            result.getVerifierData());

        session.setGlobal("result",
                          result);

        for (Object o : testData) {
            session.insert(o);
        }
        session.fireAllRules(new RuleNameMatchesAgendaFilter("Incoherent LiteralRestrictions in pattern possibility"));

        Iterator<VerifierMessageBase> iter = result.getBySeverity(Severity.ERROR).iterator();

        Set<String> rulesThatHadErrors = new HashSet<String>();
        while (iter.hasNext()) {
            Object o = (Object) iter.next();
            if (o instanceof VerifierMessage) {
                Pattern pattern = (Pattern) ((VerifierMessage) o).getFaulty();
                rulesThatHadErrors.add(pattern.getRuleName());
            }
        }

        assertTrue(rulesThatHadErrors.remove("Incoherent restrictions 1"));
        assertTrue(rulesThatHadErrors.remove("Incoherent restrictions 2"));

        if (!rulesThatHadErrors.isEmpty()) {
            for (String string : rulesThatHadErrors) {
                fail("Rule " + string + " caused an error.");
            }
        }
    }

    @Test
    public void testIncoherentLiteralRestrictionsInSubPatternImpossibleRanges() throws Exception {
        KieSession session = getStatelessKieSession(this.getClass().getResourceAsStream("Restrictions.drl"));

        VerifierReport result = VerifierReportFactory.newVerifierReport();
        Collection<? extends Object> testData = getTestData(this.getClass().getResourceAsStream("RestrictionsTest.drl"),
                                                            result.getVerifierData());

        session.setGlobal("result",
                          result);

        for (Object o : testData) {
            session.insert(o);
        }
        session.fireAllRules(new RuleNameMatchesAgendaFilter("Incoherent LiteralRestrictions with ranges in pattern possibility, impossible ranges"));

        Iterator<VerifierMessageBase> iter = result.getBySeverity(Severity.ERROR).iterator();

        Set<String> rulesThatHadErrors = new HashSet<String>();
        while (iter.hasNext()) {
            Object o = (Object) iter.next();
            if (o instanceof VerifierMessage) {
                Pattern pattern = (Pattern) ((VerifierMessage) o).getFaulty();
                rulesThatHadErrors.add(pattern.getRuleName());
            }
        }

        assertTrue(rulesThatHadErrors.remove("Incoherent restrictions 8"));

        if (!rulesThatHadErrors.isEmpty()) {
            for (String string : rulesThatHadErrors) {
                fail("Rule " + string + " caused an error.");
            }
        }
    }

    @Test
    public void testIncoherentLiteralRestrictionsInSubPatternImpossibleEqualityLess() throws Exception {
        KieSession session = getStatelessKieSession(this.getClass().getResourceAsStream("Restrictions.drl"));

        VerifierReport result = VerifierReportFactory.newVerifierReport();
        Collection<? extends Object> testData = getTestData(this.getClass().getResourceAsStream("RestrictionsTest.drl"),
                                                            result.getVerifierData());

        session.setGlobal("result",
                          result);

        for (Object o : testData) {
            session.insert(o);
        }
        session.fireAllRules(new RuleNameMatchesAgendaFilter("Incoherent LiteralRestrictions with ranges in pattern possibility, impossible equality less or equal"));

        Iterator<VerifierMessageBase> iter = result.getBySeverity(Severity.ERROR).iterator();

        Set<String> rulesThatHadErrors = new HashSet<String>();
        while (iter.hasNext()) {
            Object o = (Object) iter.next();
            if (o instanceof VerifierMessage) {
                Pattern pattern = (Pattern) ((VerifierMessage) o).getFaulty();
                rulesThatHadErrors.add(pattern.getRuleName());
            }
        }

        assertTrue(rulesThatHadErrors.remove("Incoherent restrictions 9"));
        assertTrue(rulesThatHadErrors.remove("Incoherent restrictions 11"));

        if (!rulesThatHadErrors.isEmpty()) {
            for (String string : rulesThatHadErrors) {
                fail("Rule " + string + " caused an error.");
            }
        }
    }

    @Test
    public void testIncoherentLiteralRestrictionsInSubPatternImpossibleEqualityGreater() throws Exception {
        KieSession session = getStatelessKieSession(this.getClass().getResourceAsStream("Restrictions.drl"));

        VerifierReport result = VerifierReportFactory.newVerifierReport();
        Collection<? extends Object> testData = getTestData(this.getClass().getResourceAsStream("RestrictionsTest.drl"),
                                                            result.getVerifierData());

        session.setGlobal("result",
                          result);

        for (Object o : testData) {
            session.insert(o);
        }
        session.fireAllRules(new RuleNameMatchesAgendaFilter("Incoherent LiteralRestrictions with ranges in pattern possibility, impossible equality greater"));

        Iterator<VerifierMessageBase> iter = result.getBySeverity(Severity.ERROR).iterator();

        Set<String> rulesThatHadErrors = new HashSet<String>();
        while (iter.hasNext()) {
            Object o = (Object) iter.next();
            if (o instanceof VerifierMessage) {
                Pattern pattern = (Pattern) ((VerifierMessage) o).getFaulty();
                rulesThatHadErrors.add(pattern.getRuleName());
            }
        }

        assertTrue(rulesThatHadErrors.remove("Incoherent restrictions 10"));

        if (!rulesThatHadErrors.isEmpty()) {
            for (String string : rulesThatHadErrors) {
                fail("Rule " + string + " caused an error.");
            }
        }
    }

    @Test
    public void testIncoherentLiteralRestrictionsInSubPatternImpossibleRange() throws Exception {
        KieSession session = getStatelessKieSession(this.getClass().getResourceAsStream("Restrictions.drl"));

        VerifierReport result = VerifierReportFactory.newVerifierReport();
        Collection<? extends Object> testData = getTestData(this.getClass().getResourceAsStream("RestrictionsTest.drl"),
                                                            result.getVerifierData());

        session.setGlobal("result",
                          result);

        for (Object o : testData) {
            session.insert(o);
        }
        session.fireAllRules(new RuleNameMatchesAgendaFilter("Incoherent LiteralRestrictions with ranges in pattern possibility, impossible range"));

        Iterator<VerifierMessageBase> iter = result.getBySeverity(Severity.ERROR).iterator();

        Set<String> rulesThatHadErrors = new HashSet<String>();
        while (iter.hasNext()) {
            Object o = (Object) iter.next();
            if (o instanceof VerifierMessage) {
                Pattern pattern = (Pattern) ((VerifierMessage) o).getFaulty();
                rulesThatHadErrors.add(pattern.getRuleName());
            }
        }

        assertTrue(rulesThatHadErrors.remove("Incoherent restrictions 7"));

        if (!rulesThatHadErrors.isEmpty()) {
            for (String string : rulesThatHadErrors) {
                fail("Rule " + string + " caused an error.");
            }
        }
    }

    @Test
    public void testIncoherentVariableRestrictionsInSubPattern() throws Exception {
        KieSession session = getStatelessKieSession(this.getClass().getResourceAsStream("Restrictions.drl"));

        VerifierReport result = VerifierReportFactory.newVerifierReport();
        Collection<? extends Object> testData = getTestData(this.getClass().getResourceAsStream("RestrictionsTest.drl"),
                                                            result.getVerifierData());

        session.setGlobal("result",
                          result);

        for (Object o : testData) {
            session.insert(o);
        }
        session.fireAllRules(new RuleNameMatchesAgendaFilter("Incoherent VariableRestrictions in pattern possibility"));

        Iterator<VerifierMessageBase> iter = result.getBySeverity(Severity.ERROR).iterator();

        Set<String> rulesThatHadErrors = new HashSet<String>();
        while (iter.hasNext()) {
            Object o = (Object) iter.next();
            if (o instanceof VerifierMessage) {
                Pattern pattern = (Pattern) ((VerifierMessage) o).getFaulty();
                rulesThatHadErrors.add(pattern.getRuleName());
            }
        }

        assertTrue(rulesThatHadErrors.remove("Incoherent restrictions 3"));
        assertTrue(rulesThatHadErrors.remove("Incoherent restrictions 4"));
        assertTrue(rulesThatHadErrors.remove("Incoherent restrictions 5"));

        if (!rulesThatHadErrors.isEmpty()) {
            for (String string : rulesThatHadErrors) {
                fail("Rule " + string + " caused an error.");
            }
        }
    }

    @Test
    public void testIncoherentVariableRestrictionsInSubPatternImpossibleRange() throws Exception {
        KieSession session = getStatelessKieSession(this.getClass().getResourceAsStream("Restrictions.drl"));

        VerifierReport result = VerifierReportFactory.newVerifierReport();
        Collection<? extends Object> testData = getTestData(this.getClass().getResourceAsStream("RestrictionsTest.drl"),
                                                            result.getVerifierData());

        session.setGlobal("result",
                          result);

        for (Object o : testData) {
            session.insert(o);
        }
        session.fireAllRules(new RuleNameMatchesAgendaFilter("Incoherent VariableRestrictions in pattern possibility, impossible range"));

        Iterator<VerifierMessageBase> iter = result.getBySeverity(Severity.ERROR).iterator();

        Set<String> rulesThatHadErrors = new HashSet<String>();
        while (iter.hasNext()) {
            Object o = (Object) iter.next();
            if (o instanceof VerifierMessage) {
                Pattern pattern = (Pattern) ((VerifierMessage) o).getFaulty();
                rulesThatHadErrors.add(pattern.getRuleName());
            }
        }

        assertTrue(rulesThatHadErrors.remove("Incoherent restrictions 6"));

        if (!rulesThatHadErrors.isEmpty()) {
            for (String string : rulesThatHadErrors) {
                fail("Rule " + string + " caused an error.");
            }
        }
    }
}