Enum

Empty namespace¶

Better organization around the code in big projects. No need to initialize or privatize the init() function internally.

https://www.swiftbysundell.com/articles/powerful-ways-to-use-swift-enums/

https://stackoverflow.com/questions/49427144/is-there-a-technical-reason-to-use-swifts-caseless-enum-instead-of-real-cases

https://docs.swift.org/swift-book/LanguageGuide/Enumerations.html

https://www.swiftbysundell.com/basics/enums/

Unit test¶

enum Security: String {
    case faceID, touchID, password, none
    var systemImageName: String { 
        return self.lowercased()
    }
}


final class SecurityTypeTests: XCTestCase {

    let testObject = Security.self

    func test_SystemImageName() throws {

        Assert(testObject.faceID.systemImageName).isEqual(to: "faceid")
        Assert(testObject.touchID.systemImageName).isEqual(to: "touchid")
        Assert(testObject.password.systemImageName).isEqual(to: "password")
        Assert(testObject.none.systemImageName).isEqual(to: "none")

        try test("returns non-nil when used with `UIImage.init(systemName:)`") {
            try testObject.allCases.forEach {
            _ = try Unwrap(UIImage(systemName: $0.systemImageName)) }
        }
    }

}