class TestAddEquatable {
    var property = "test"
    private var prop = "test2"
    let pr = "test3"
}

extension TestAddEquatable {
    func test() -> Bool {
        return true
    }
}

extension TestAddEquatable: Equatable {
    static func == (lhs: TestAddEquatable, rhs: TestAddEquatable) -> Bool {
        return lhs.property == rhs.property &&
               lhs.prop == rhs.prop &&
               lhs.pr == rhs.pr
    }
}