/**
* @param string $stringExpression
* @return float
* @throws InvalidExpressionException
*/
public function evaluate($stringExpression)
{
$infixArray = $this->expressionParser->parse($stringExpression);
$rpnExpression = $this->notationTransformer->infixToRpn($infixArray);
$result = $this->evaluateRpnExpression($rpnExpression);
return $result;
}
/**
* @dataProvider expressionDataProvider
*/
public function test_it_correctly_parses_expression_string($expression, $expected)
{
$parsed = $this->expressionParser->parse($expression);
$this->assertEquals($expected, $parsed);
}