// MIT License
//
// Copyright (c) 2017 Milen Dzhumerov
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.

import Foundation
import XCTest

public enum OptionalError: Error {
  case unwrappedNil
}

public extension Optional {
  func unwrap(file: StaticString = #file, line: UInt = #line) throws -> Wrapped {
    guard let unwrapped = self else {
      XCTFail("Unwrapped nil: \(file):\(line)")
      throw OptionalError.unwrappedNil
    }
    
    return unwrapped
  }
}

public extension XCTestCase {
  func loadFile(named name: String, extension ext: String? = nil) throws -> Data? {
    let url = Bundle(for: type(of: self)).url(forResource: name, withExtension: ext)
    return try url.map { try Data(contentsOf: $0) }
  }
}


