main/src/test/java/org/apache/poi/ss/formula/eval/TestDivideEval.java

/* ====================================================================
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   contributor license agreements.  See the NOTICE file distributed with
   this work for additional information regarding copyright ownership.
   The ASF licenses this file to You under the Apache License, Version 2.0
   (the "License"); you may not use this file except in compliance with
   the License.  You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

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   distributed under the License is distributed on an "AS IS" BASIS,
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   See the License for the specific language governing permissions and
   limitations under the License.
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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);
	}
}