CountersFake.swift

// Copyright (c) 2021 Spotify AB.
//
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

@testable import XCRemoteCache

class CountersFake: Counters {
    private var counters: [Int]

    init(_ size: Int) {
        counters = Array(repeating: 0, count: size)
    }

    func readCounters() throws -> [Int] {
        return counters
    }

    func writeCounters(_ counters: [Int]) throws {
        self.counters = counters
    }

    func reset() throws {
        counters = Array(repeating: 0, count: counters.count)
    }

    func bumpCounter(position: Int) throws {
        counters[position] += 1
    }
}