【SwiftUI】プレビューでCoreDataのエンティティを配列として使う方法

import SwiftUI
import CoreData

struct MemberListView: View {
  let members: [Member]
  
  var body: some View {
    NavigationView {
      List {
        ForEach(members.indices, id: \.self) { index in
          Text("\(self.members[index].name!)")
        }
      }
      .navigationBarTitle("会員一覧")
    }
  }
}

struct MemberListView_Previews: PreviewProvider {
  static var previews: some View {
    let context = (UIApplication.shared.delegate as! AppDelegate)
      .persistentContainer.viewContext
    var members = [Member]()
    
    for i in 1...10 {
      let member = Member(context: context)
      member.name = "hoge_\(i)"
      members.append(member)
    }
    
    return MemberListView(members: members)
      .environment(\.managedObjectContext, context)
  }
}