MathPHP\NumericalAnalysis\Interpolation\ClampedCubicSplineTest::testIncorrectInput PHP Method

    public function testIncorrectInput()
    {
        // The input $source is neither a callback or a set of arrays
        $this->setExpectedException('MathPHP\\Exception\\BadDataException');
        $x = 10;
        $incorrectFunction = $x ** 2 + 2 * $x + 1;
        ClampedCubicSpline::getSplinePoints($incorrectFunction, [0, 4, 5]);
    }