tacky-tennis.go

package main

import (
	"strings"
	"testing"

	"github.com/stretchr/testify/assert"
)
//https://github.com/hibri/code-katas/blob/main/katas/tennis-game.md
func TestAlwaysTrue(t *testing.T) {

	assert.True(t, true)
}

func TestPlayer1Scores(t *testing.T){

	expectedScoreForPlayer1 := 15
	expectedScoreForPlayer2 := 0

// H M
// H M
// M H
// M H

	actualScoreForPlayer1, actualScoreForPlayer2 := getScores("HM")

	assert.Equal(t, expectedScoreForPlayer1, actualScoreForPlayer1)
	assert.Equal(t, expectedScoreForPlayer2, actualScoreForPlayer2)
}

func TestPlayer1ScoresContinuouslyTwice(t *testing.T){
	expectedScoreForPlayer1 := 30
	expectedScoreForPlayer2 := 0

	actualScoreForPlayer1, actualScoreForPlayer2 := getScores("HM,HM")

	assert.Equal(t, expectedScoreForPlayer1, actualScoreForPlayer1)
	assert.Equal(t, expectedScoreForPlayer2, actualScoreForPlayer2)
}

func TestPlayer1ScoresContinuouslyThrice(t *testing.T){
	expectedScoreForPlayer1 := 40
	expectedScoreForPlayer2 := 0

	actualScoreForPlayer1, actualScoreForPlayer2 := getScores("HM,HM,HM")

	assert.Equal(t, expectedScoreForPlayer1, actualScoreForPlayer1)
	assert.Equal(t, expectedScoreForPlayer2, actualScoreForPlayer2)
}


func getScores(scoringEvents string) (score1 int, score2 int) {

	if(scoringEvents == "HM"){
		return 15,0
	}

	var a1 int
	var a2 int

	events := strings.Split(scoringEvents, ",")
	for x := 0; x < len(events); x++ {
		s1, s2 := getScores(events[x])
		a1 += s1
		if (a1 == 45) {
			a1 = 40
		}
		a2 += s2
	}

  return a1,a2
}