Tennis kata in Swift

Inspire by Joey Chen's Video:【極速開發】WebStorm + JavaScript - v2

Key concept

1. Using Quick and Nimble to write Test code
2. Follow TDD cycle
3. Format by SwiftFormat

Program API

// Swift
public class Tennis {

    public init(firstPlayerName: String, secondPlayerName: String)

    public func score() -> String

    public func firstPlayerScore()

    public func secondPlayerScore()
}

Reference

1. Joey Chen's Video:【極速開發】WebStorm + JavaScript - v2

https://www.youtube.com/watch?v=0910KxWDLzk

2. TDD: Test-driven development

https://en.wikipedia.org/wiki/Test-driven_development

3. SwiftFormat

https://github.com/nicklockwood/SwiftFormat

But I force commit in Tests/TennisTests/Tennis.swift line: 14~20, for prettier indent. Look for help 😥