public function testOnIncrementCounter()
{
$generator = new IntegerSequence();
$this->assertEquals(1, $generator->generate());
$generator->onIncrementCounter();
$this->assertEquals(3, $generator->generate());
$generator->onIncrementCounter(5);
$this->assertEquals(9, $generator->generate());
$generator->onIncrementCounter(-10);
$this->assertEquals(10, $generator->generate());
}
