public function testCreatePlanReturnsException()
{
$errorResponse = new \stdClass();
$errorResponse->message = 'Paystack Validation Exception';
$mockPlanResource = \Mockery::mock($this->planResource)->makePartial();
$mockPlanResource->shouldReceive('save')->withAnyArgs()->andReturn(new PaystackValidationException($errorResponse, 400));
$plan = new Plan($mockPlanResource);
$this->setExpectedException(PaystackValidationException::class);
$createdPlan = $plan->make($this->planData['name'], $this->planData['description'], $this->planData['amount'], $this->planData['currency'])->save();
}
