public function test_simple_addition()
{
$m = new Math(new SimpleAdditionTokenizer(), new Dictionary());
$this->assertSame(intval(2), $m->expression('foobar'));
}
/**
* @test
* @dataProvider provideParenthesisMismatch
*/
public function parenthesis_mismatch($expr)
{
$m = new Math(new SimpleTokenizer(), new Shuntingyard(), new PostfixCalculator());
$this->setExpectedException('Calculator\\Tokenizing\\ParenthesisMismatch');
$m->expression($expr);
}