<?php

class TestMyModel extends PHPUnit_Framework_TestCase{
    /**
        * @dataProvider myProvider
        */
    public function testMyFunctionOnlyAcceptsPositiveIntegers($setter, $getter, $a)
        {
        if(!is_int($a) || $a < 0 || is_string($a)){
            $this->setExpectedException('\Exception');
        }

        $val = $this->model->{$setter}($a);
        $this->assertEquals(true, $this->model->{$getter}());
    }

    public function myProvider(){
        return array(
            array('setterA', 'getterA', 1),
            array('setterB', 'getterB', 1.1),
            array('setterC', 'getterC', 'a'),
            array('setterD', 'getterD', -23)
        );
    }
}

?>