Test that shows a side-effect while calling BigDecimal.stripTrailingZeros

BigDecimalTest.as

package com.whatever
{
    import org.flexunit.asserts.assertEquals;
    import org.granite.math.BigDecimal;

    public class BigDecimalTest {

        public function BigDecimalTest() {
        }

        [Test]
        public function should_return_value_division():void {
            var value1:BigDecimal = new BigDecimal(500000000);
            var value2:BigDecimal = new BigDecimal(0.02);

            var result:BigDecimal = value1.multiply(value2);

            // huh? this method changes the given object!?
            result.stripTrailingZeros();

            assertEquals("Expected " + new BigDecimal(500000000).toPlainString() + " but was " + value1.toPlainString(), 0, value1.compareTo(new BigDecimal(500000000)));
            assertEquals("Expected " + new BigDecimal(0.02).toPlainString() + " but was " + value2.toPlainString(), 0, value2.compareTo(new BigDecimal(0.02)));

            // it fails here :(
            assertEquals("Expected " + new BigDecimal(10000000).toPlainString() + " but was " + result.toPlainString(), 0, result.compareTo(new BigDecimal(10000000)));
        }
    }
}