fe/fe-core/src/test/java/org/apache/doris/analysis/BinaryPredicateTest.java

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//   http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.doris.analysis;

import org.apache.doris.catalog.Type;
import org.apache.doris.common.AnalysisException;

import org.apache.doris.common.jmockit.Deencapsulation;

import com.google.common.collect.Lists;

import org.junit.Assert;
import org.junit.Test;

import mockit.Expectations;
import mockit.Injectable;
import mockit.Mocked;

public class BinaryPredicateTest {

    @Mocked
    Analyzer analyzer;

    @Test
    public void testMultiColumnSubquery(@Injectable Expr child0,
                                        @Injectable Subquery child1) {
        BinaryPredicate binaryPredicate = new BinaryPredicate(BinaryPredicate.Operator.EQ, child0, child1);
        new Expectations() {
            {
                child1.returnsScalarColumn();
                result = false;
            }
        };

        try {
            binaryPredicate.analyzeImpl(analyzer);
            Assert.fail();
        } catch (AnalysisException e) {
        }
    }

    @Test
    public void testSingleColumnSubquery(@Injectable Expr child0,
                                         @Injectable QueryStmt subquery,
            @Injectable SlotRef slotRef) {
        Subquery child1 = new Subquery(subquery);
        BinaryPredicate binaryPredicate = new BinaryPredicate(BinaryPredicate.Operator.EQ, child0, child1);
        new Expectations() {
            {
                subquery.getResultExprs();
                result = Lists.newArrayList(slotRef);
                slotRef.getType();
                result = Type.INT;
            }
        };

        try {
            binaryPredicate.analyzeImpl(analyzer);
            Assert.assertSame(null, Deencapsulation.getField(binaryPredicate, "fn"));
        } catch (AnalysisException e) {
            Assert.fail(e.getMessage());
        }
    }
}