public function testWithMutableTrue()
{
// Arrange
$bigNumber = new BigNumber('10', 10, true);
// Act
$newBigNumber = $bigNumber->divide(10);
// Assert
$this->assertInstanceOf('PHP\\Math\\BigNumber\\BigNumber', $bigNumber);
$this->assertInstanceOf('PHP\\Math\\BigNumber\\BigNumber', $newBigNumber);
$this->assertEquals('1', $bigNumber->getValue());
$this->assertEquals('1', $newBigNumber->getValue());
}
