implementation

Documentation

Index

• Variables
• type VendingMachine
  • func NewVendingMachine() *VendingMachine
  • func (v *VendingMachine) Coin(credit int) error
  • func (v VendingMachine) Credit() int
  • func (v *VendingMachine) Vend() bool

Variables

var (
	// ErrUnknownCoin states that a given coin is unknown to the vending machine
	ErrUnknownCoin = errors.New("Unknown coin")
)

Types

type VendingMachine

type VendingMachine struct {
	// contains filtered or unexported fields
}

VendingMachine holds the state of a vending machine

func NewVendingMachine

func NewVendingMachine() *VendingMachine

NewVendingMachine returns a instantiated state of a vending machine

func (*VendingMachine) Coin

func (v *VendingMachine) Coin(credit int) error

Coin inserts a coin into the vending machine. On success the credit of the machine will be increased by the coin.

func (VendingMachine) Credit

func (v VendingMachine) Credit() int

Credit returns the current credit of the vending machine

func (*VendingMachine) Vend

func (v *VendingMachine) Vend() bool

Vend executes a vend of the machine if enough credit (100) has been put in and returns true.