25, 'duration' => 'repeating', 'duration_in_months' => 5, 'id' => $id)); $customer = self::createTestCustomer(array('coupon' => $id)); $this->assertTrue(isset($customer->discount)); $this->assertTrue(isset($customer->discount->coupon)); $this->assertEqual($id, $customer->discount->coupon->id); $customer->deleteDiscount(); $this->assertFalse(isset($customer->discount)); $customer = Stripe_Customer::retrieve($customer->id); $this->assertFalse(isset($customer->discount)); } }