Interface Article - MockDB Implementation

mockdb.go

type MockDB struct {
        // FakeFetch is used to provide unique test case results
        FakeFetch func(string) (int, error)
}

func (m *MockDB) Fetch(k string) (int, error) {
        if m.FakeFetch != nil {
                return m.FakeFetch(k)
        }
        return 0, nil
}