container-search/src/test/java/com/yahoo/prelude/semantics/test/ConditionTestCase.java


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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.prelude.semantics.test;

import com.yahoo.search.Query;
import com.yahoo.prelude.semantics.RuleBase;
import com.yahoo.prelude.semantics.engine.Evaluation;
import com.yahoo.prelude.semantics.rule.ChoiceCondition;
import com.yahoo.prelude.semantics.rule.ConditionReference;
import com.yahoo.prelude.semantics.rule.NamedCondition;
import com.yahoo.prelude.semantics.rule.ProductionList;
import com.yahoo.prelude.semantics.rule.ProductionRule;
import com.yahoo.prelude.semantics.rule.ReplacingProductionRule;
import com.yahoo.prelude.semantics.rule.SequenceCondition;
import com.yahoo.prelude.semantics.rule.TermCondition;

/**
 * @author bratseth
 */
public class ConditionTestCase extends junit.framework.TestCase {

    public ConditionTestCase(String name) {
        super(name);
    }

    public void testTermCondition() {
        TermCondition term=new TermCondition("foo");
        Query query=new Query("?query=foo");
        assertTrue(term.matches(new Evaluation(query).freshRuleEvaluation()));
    }

    public void testSequenceCondition() {
        TermCondition term1=new TermCondition("foo");
        TermCondition term2=new TermCondition("bar");
        SequenceCondition sequence=new SequenceCondition();
        sequence.addCondition(term1);
        sequence.addCondition(term2);
        Query query=new Query("?query=foo+bar");
        assertTrue(query + " matches " + sequence,sequence.matches(new Evaluation(query).freshRuleEvaluation()));
        Query query2=new Query("?query=foo");
        assertFalse(query2 + " does not match " + sequence,sequence.matches(new Evaluation(query2).freshRuleEvaluation()));
        Query query3=new Query("?query=bar");
        assertFalse(query3 + " does not match " + sequence,sequence.matches(new Evaluation(query3).freshRuleEvaluation()));
    }

    public void testChoiceCondition() {
        TermCondition term1=new TermCondition("foo");
        TermCondition term2=new TermCondition("bar");
        ChoiceCondition choice=new ChoiceCondition();
        choice.addCondition(term1);
        choice.addCondition(term2);
        Query query1=new Query("?query=foo+bar");
        assertTrue(query1 + " matches " + choice,choice.matches(new Evaluation(query1).freshRuleEvaluation()));
        Query query2=new Query("?query=foo");
        assertTrue(query2 + " matches " + choice,choice.matches(new Evaluation(query2).freshRuleEvaluation()));
        Query query3=new Query("?query=bar");
        assertTrue(query3 + " matches " + choice,choice.matches(new Evaluation(query3).freshRuleEvaluation()));
    }

    public void testNamedConditionReference() {
        TermCondition term=new TermCondition("foo");
        NamedCondition named=new NamedCondition("cond",term);
        ConditionReference reference=new ConditionReference("cond");

        // To initialize the condition reference...
        ProductionRule rule=new ReplacingProductionRule();
        rule.setCondition(reference);
        rule.setProduction(new ProductionList());
        RuleBase ruleBase=new RuleBase();
        ruleBase.setName("test");
        ruleBase.addCondition(named);
        ruleBase.addRule(rule);
        ruleBase.initialize();

        Query query=new Query("?query=foo");
        assertTrue(query + "  matches " + reference,reference.matches(new Evaluation(query).freshRuleEvaluation()));
    }

}