TestDivideEval.java

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   this work for additional information regarding copyright ownership.
   The ASF licenses this file to You under the Apache License, Version 2.0
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package org.apache.poi.ss.formula.eval;

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

import org.apache.poi.ss.formula.functions.EvalFactory;
import org.apache.poi.ss.formula.functions.NumericFunctionInvoker;
import org.junit.jupiter.api.Test;

/**
 * Test for divide operator evaluator.
 */
final class TestDivideEval {

    private static void confirm(ValueEval arg0, ValueEval arg1, double expectedResult) {
        ValueEval[] args = {
            arg0, arg1,
        };

        double result = NumericFunctionInvoker.invoke(EvalInstances.Divide, args, 0, 0);

        assertEquals(expectedResult, result, 0);
    }

    @Test
    void testBasic() {
        confirm(new NumberEval(5), new NumberEval(2), 2.5);
        confirm(new NumberEval(3), new NumberEval(16), 0.1875);
        confirm(new NumberEval(-150), new NumberEval(-15), 10.0);
        confirm(new StringEval("0.2"), new NumberEval(0.05), 4.0);
        confirm(BoolEval.TRUE, new StringEval("-0.2"), -5.0);
    }

    @Test
    void test1x1Area() {
        AreaEval ae0 = EvalFactory.createAreaEval("B2:B2", new ValueEval[] { new NumberEval(50), });
        AreaEval ae1 = EvalFactory.createAreaEval("C2:C2", new ValueEval[] { new NumberEval(10), });
        confirm(ae0, ae1, 5);
    }

    @Test
    void testDivZero() {
        ValueEval[] args = {
            new NumberEval(5), NumberEval.ZERO,
        };
        ValueEval result = EvalInstances.Divide.evaluate(args, 0, (short) 0);
        assertEquals(ErrorEval.DIV_ZERO, result);
    }
}