/**
* This method tests the "nvl" method.
*/
public function test_nvl()
{
$x = IFloat\Type::one();
$y = IFloat\Type::zero();
$z = IFloat\Module::nvl($x, $y);
$this->assertInstanceOf('\\Saber\\Data\\IFloat\\Type', $z);
$this->assertSame(1.0, $z->unbox());
$z = IFloat\Module::nvl(null, $x);
$this->assertInstanceOf('\\Saber\\Data\\IFloat\\Type', $z);
$this->assertSame(1.0, $z->unbox());
$z = IFloat\Module::nvl(null, null);
$this->assertInstanceOf('\\Saber\\Data\\IFloat\\Type', $z);
$this->assertSame(0.0, $z->unbox());
}