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package main
import (
"fmt"
"testing"
)
func TestWallet(t *testing.T) {
t.Run("Deposit", func(t *testing.T) {
wallet := Wallet{}
wallet.Deposit(Bitcoin(10))
fmt.Printf("address of balance in test is %v \n", &wallet.balance)
assertBalance(t, wallet, Bitcoin(10))
})
t.Run("Withdraw with funds", func(t *testing.T) {
wallet := Wallet{balance: Bitcoin(20)}
err := wallet.Withdraw(Bitcoin(10))
assertBalance(t, wallet, Bitcoin(10))
assertNoError(t, err)
})
t.Run("Withdraw insufficient funds", func(t *testing.T) {
wallet := Wallet{balance: Bitcoin(20)}
err := wallet.Withdraw(Bitcoin(100))
assertBalance(t, wallet, Bitcoin(20))
assertError(t, err, InsufficientFundsError)
})
}
func assertBalance(t *testing.T, wallet Wallet, want Bitcoin) {
t.Helper()
got := wallet.Balance()
if got != want {
t.Errorf("got %s want %s", got, want)
}
}
func assertError(t *testing.T, got error, want error) {
t.Helper()
if got == nil {
t.Fatal("wanted an error but didn't get one")
}
if got != want {
t.Errorf("got %q, want %q", got, want)
}
}
func assertNoError(t *testing.T, got error) {
t.Helper()
if got != nil {
t.Fatal("wanted an error but didn't get one")
}
}
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