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n0mn0m's solution

to Two Fer in the Swift Track

Published at Nov 04 2020 · 0 comments
Test suite

Two-fer or 2-fer is short for two for one. One for you and one for me.

"One for X, one for me."

When X is a name or "you".

If the given name is "Alice", the result should be "One for Alice, one for me." If no name is given, the result should be "One for you, one for me."


Go through the project setup instructions for Xcode using Swift:


Notably from the source directory:

swift test runs tests
swift package generate-xcodeproj creates an Xcode project



Submitting Incomplete Solutions

It's possible to submit an incomplete solution so you can see how others have completed the exercise.


import XCTest
@testable import TwoFerTests



import XCTest
@testable import TwoFer

class TwoFerTests: XCTestCase {

    func testNoNameGiven() {
        XCTAssertEqual(TwoFer.twoFer(), "One for you, one for me.")

    func testANameGiven() {
        XCTAssertEqual(TwoFer.twoFer(name: "Alice"), "One for Alice, one for me.")

    func testAnotherNameGiven() {
        XCTAssertEqual(TwoFer.twoFer(name: "Bob"), "One for Bob, one for me.")

    static var allTests: [(String, (TwoFerTests) -> () throws -> Void)] {
        return [
            ("testNoNameGiven", testNoNameGiven),
            ("testANameGiven", testANameGiven),
            ("testAnotherNameGiven", testAnotherNameGiven),
//Solution goes in Sources
func twoFer(name: String = "you") -> String {
    "One for \(name), one for me."

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