TestFormulaRecordAggregate.java

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package org.apache.poi.hssf.record.aggregates;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertTrue;

import java.util.ArrayList;
import java.util.List;

import org.apache.poi.hssf.model.HSSFFormulaParser;
import org.apache.poi.hssf.record.FormulaRecord;
import org.apache.poi.hssf.record.StringRecord;
import org.apache.poi.ss.formula.FormulaRenderer;
import org.apache.poi.ss.formula.FormulaType;
import org.apache.poi.ss.formula.ptg.ExpPtg;
import org.apache.poi.ss.formula.ptg.Ptg;
import org.apache.poi.ss.util.CellRangeAddress;
import org.junit.jupiter.api.Test;

final class TestFormulaRecordAggregate {

    @Test
    void testBasic() {
        FormulaRecord f = new FormulaRecord();
        f.setCachedResultTypeString();
        StringRecord s = new StringRecord();
        s.setString("abc");
        FormulaRecordAggregate fagg = new FormulaRecordAggregate(f, s, SharedValueManager.createEmpty());
        assertEquals("abc", fagg.getStringValue());
        assertFalse(fagg.isPartOfArrayFormula());
    }

    /**
     * Sometimes a {@link StringRecord} appears after a {@link FormulaRecord} even though the
     * formula has evaluated to a text value.  This might be more likely to occur when the formula
     * <i>can</i> evaluate to a text value.<br>
     * Bug 46213 attachment 22874 has such an extra {@link StringRecord} at stream offset 0x5765.
     * This file seems to open in Excel (2007) with no trouble.  When it is re-saved, Excel omits
     * the extra record.  POI should do the same.
     */
    @Test
    void testExtraStringRecord_bug46213() {
        FormulaRecord fr = new FormulaRecord();
        fr.setValue(2.0);
        StringRecord sr = new StringRecord();
        sr.setString("NA");
        SharedValueManager svm = SharedValueManager.createEmpty();
        // bug 46213 -> String record was  supplied but formula record flag is not set
        FormulaRecordAggregate fra = new FormulaRecordAggregate(fr, sr, svm);
        List<org.apache.poi.hssf.record.Record> vraRecs = new ArrayList<>();
        fra.visitContainedRecords(vraRecs::add);
        assertEquals(1, vraRecs.size());
        assertEquals(fr, vraRecs.get(0));
    }

    @Test
    void testArrayFormulas() {
        int rownum = 4;
        int colnum = 4;

        FormulaRecord fr = new FormulaRecord();
        fr.setRow(rownum);
        fr.setColumn((short)colnum);

        FormulaRecordAggregate agg = new FormulaRecordAggregate(fr, null, SharedValueManager.createEmpty());
        Ptg[] ptgsForCell = {new ExpPtg(rownum, colnum)};
        agg.setParsedExpression(ptgsForCell);

        String formula = "SUM(A1:A3*B1:B3)";
        Ptg[] ptgs = HSSFFormulaParser.parse(formula, null, FormulaType.ARRAY, 0);
        agg.setArrayFormula(new CellRangeAddress(rownum, rownum, colnum, colnum), ptgs);

        assertTrue(agg.isPartOfArrayFormula());
        assertEquals("E5", agg.getArrayFormulaRange().formatAsString());
        Ptg[] ptg = agg.getFormulaTokens();
        String fmlaSer = FormulaRenderer.toFormulaString(null, ptg);
        assertEquals(formula, fmlaSer);

        agg.removeArrayFormula(rownum, colnum);
        assertFalse(agg.isPartOfArrayFormula());
    }
}