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

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package org.apache.doris.analysis;

import org.apache.doris.catalog.Column;
import org.apache.doris.catalog.FunctionSet;
import org.apache.doris.catalog.Type;
import org.apache.doris.common.jmockit.Deencapsulation;

import com.google.common.collect.Lists;

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

import java.util.List;

import mockit.Expectations;
import mockit.Injectable;

public class MVColumnBitmapUnionPatternTest {

    @Test
    public void testCorrectExpr1() {
        TableName tableName = new TableName("db", "table");
        SlotRef slotRef = new SlotRef(tableName, "c1");
        Deencapsulation.setField(slotRef, "type", Type.INT);
        List<Expr> child0Params = Lists.newArrayList();
        child0Params.add(slotRef);
        FunctionCallExpr child0 = new FunctionCallExpr(FunctionSet.TO_BITMAP, child0Params);
        List<Expr> params = Lists.newArrayList();
        params.add(child0);
        FunctionCallExpr expr = new FunctionCallExpr(FunctionSet.BITMAP_UNION, params);
        MVColumnBitmapUnionPattern pattern = new MVColumnBitmapUnionPattern();
        Assert.assertTrue(pattern.match(expr));
    }

    @Test
    public void testCorrectExpr2(@Injectable CastExpr castExpr) {
        TableName tableName = new TableName("db", "table");
        SlotRef slotRef = new SlotRef(tableName, "c1");
        Deencapsulation.setField(slotRef, "type", Type.INT);
        new Expectations() {
            {
                castExpr.unwrapSlotRef();
                result = slotRef;
            }
        };
        List<Expr> child0Params = Lists.newArrayList();
        child0Params.add(castExpr);
        FunctionCallExpr child0 = new FunctionCallExpr(FunctionSet.TO_BITMAP, child0Params);
        List<Expr> params = Lists.newArrayList();
        params.add(child0);
        FunctionCallExpr expr = new FunctionCallExpr(FunctionSet.BITMAP_UNION, params);
        MVColumnBitmapUnionPattern pattern = new MVColumnBitmapUnionPattern();
        Assert.assertTrue(pattern.match(expr));
    }

    @Test
    public void testUpperCaseOfFunction() {
        TableName tableName = new TableName("db", "table");
        SlotRef slotRef = new SlotRef(tableName, "c1");
        Deencapsulation.setField(slotRef, "type", Type.INT);
        List<Expr> child0Params = Lists.newArrayList();
        child0Params.add(slotRef);
        FunctionCallExpr child0 = new FunctionCallExpr(FunctionSet.TO_BITMAP.toUpperCase(), child0Params);
        List<Expr> params = Lists.newArrayList();
        params.add(child0);
        FunctionCallExpr expr = new FunctionCallExpr(FunctionSet.BITMAP_UNION.toUpperCase(), params);
        MVColumnBitmapUnionPattern pattern = new MVColumnBitmapUnionPattern();
        Assert.assertTrue(pattern.match(expr));
    }

    @Test
    public void testIncorrectArithmeticExpr1() {
        TableName tableName = new TableName("db", "table");
        SlotRef slotRef1 = new SlotRef(tableName, "c1");
        SlotRef slotRef2 = new SlotRef(tableName, "c2");
        ArithmeticExpr arithmeticExpr = new ArithmeticExpr(ArithmeticExpr.Operator.ADD, slotRef1, slotRef2);
        List<Expr> params = Lists.newArrayList();
        params.add(arithmeticExpr);
        FunctionCallExpr expr = new FunctionCallExpr(FunctionSet.BITMAP_UNION, params);
        MVColumnBitmapUnionPattern pattern = new MVColumnBitmapUnionPattern();
        Assert.assertFalse(pattern.match(expr));
    }

    @Test
    public void testIncorrectArithmeticExpr2() {
        TableName tableName = new TableName("db", "table");
        SlotRef slotRef1 = new SlotRef(tableName, "c1");
        SlotRef slotRef2 = new SlotRef(tableName, "c2");
        ArithmeticExpr arithmeticExpr = new ArithmeticExpr(ArithmeticExpr.Operator.ADD, slotRef1, slotRef2);
        List<Expr> child0Params = Lists.newArrayList();
        child0Params.add(arithmeticExpr);
        FunctionCallExpr child0 = new FunctionCallExpr(FunctionSet.TO_BITMAP, child0Params);
        List<Expr> params = Lists.newArrayList();
        params.add(child0);
        FunctionCallExpr expr = new FunctionCallExpr(FunctionSet.BITMAP_UNION, params);
        MVColumnBitmapUnionPattern pattern = new MVColumnBitmapUnionPattern();
        Assert.assertFalse(pattern.match(expr));
    }

    @Test
    public void testIncorrectDecimalSlotRef() {
        TableName tableName = new TableName("db", "table");
        SlotRef slotRef1 = new SlotRef(tableName, "c1");
        Deencapsulation.setField(slotRef1, "type", Type.DECIMALV2);
        List<Expr> child0Params = Lists.newArrayList();
        child0Params.add(slotRef1);
        FunctionCallExpr child0 = new FunctionCallExpr(FunctionSet.TO_BITMAP, child0Params);
        List<Expr> params = Lists.newArrayList();
        params.add(child0);
        FunctionCallExpr expr = new FunctionCallExpr(FunctionSet.BITMAP_UNION, params);
        MVColumnBitmapUnionPattern pattern = new MVColumnBitmapUnionPattern();
        Assert.assertFalse(pattern.match(expr));
    }

    @Test
    public void testAggTableBitmapColumn(@Injectable SlotDescriptor desc,
            @Injectable Column column) {
        TableName tableName = new TableName("db", "table");
        SlotRef slotRef1 = new SlotRef(tableName, "c1");
        List<Expr> params = Lists.newArrayList();
        params.add(slotRef1);
        FunctionCallExpr expr = new FunctionCallExpr(FunctionSet.BITMAP_UNION, params);
        slotRef1.setType(Type.BITMAP);
        slotRef1.setDesc(desc);
        new Expectations() {
            {
                desc.getColumn();
                result = column;
            }
        };
        MVColumnBitmapUnionPattern pattern = new MVColumnBitmapUnionPattern();
        Assert.assertTrue(pattern.match(expr));
    }
}