Implement a first working version of the game

This commit is contained in:
Gabriel Augendre 2023-03-15 17:50:22 +01:00
parent 7e4c8cece9
commit ffc92dc861
3 changed files with 95 additions and 0 deletions

28
lib.go
View file

@ -1,5 +1,12 @@
package main
import (
"bufio"
"fmt"
"io"
"strconv"
)
func CheckGuess(guess, random int) (string, bool) {
if guess == random {
return "Good job!", true
@ -9,3 +16,24 @@ func CheckGuess(guess, random int) (string, bool) {
}
return "Nope, lower.", false
}
func LoopUntilFound(writer io.Writer, reader io.Reader, random int) {
scanner := bufio.NewScanner(reader)
win := false
count := 0
for !win {
fmt.Fprint(writer, "your guess: ")
scanner.Scan()
value := scanner.Text()
guess, _ := strconv.Atoi(value)
var msg string
msg, win = CheckGuess(guess, random)
fmt.Fprintf(writer, "\n%v\n", msg)
count++
}
if count == 1 {
fmt.Fprintln(writer, "You got it right in 1 try.")
} else {
fmt.Fprintf(writer, "You got it right in %d tries.\n", count)
}
}

View file

@ -1,6 +1,8 @@
package main
import (
"bytes"
"strings"
"testing"
)
@ -49,3 +51,58 @@ func assertCheckGuess(t testing.TB, guess, random int, wantStatus string, wantWo
t.Errorf("got %v want %v", won, wantWon)
}
}
func TestLoopUntilFound(t *testing.T) {
t.Run("found on first try", func(t *testing.T) {
output := bytes.Buffer{}
input := strings.NewReader("37\n")
random := 37
LoopUntilFound(&output, input, random)
got := output.String()
want := "your guess: \nGood job!\nYou got it right in 1 try.\n"
if got != want {
t.Errorf("got %q want %q", got, want)
}
})
t.Run("found on second try", func(t *testing.T) {
output := bytes.Buffer{}
input := strings.NewReader("50\n37\n")
random := 37
LoopUntilFound(&output, input, random)
got := output.String()
want := "your guess: \nNope, lower.\nyour guess: \nGood job!\nYou got it right in 2 tries.\n"
if got != want {
t.Errorf("got %q want %q", got, want)
}
})
t.Run("found after many tries", func(t *testing.T) {
output := bytes.Buffer{}
inputs := []string{"50", "25", "32", "37", ""}
input := strings.NewReader(strings.Join(inputs, "\n"))
random := 37
LoopUntilFound(&output, input, random)
got := output.String()
wants := []string{
"your guess: ",
"Nope, lower.",
"your guess: ",
"Try higher.",
"your guess: ",
"Try higher.",
"your guess: ",
"Good job!",
"You got it right in 4 tries.",
"",
}
want := strings.Join(wants, "\n")
if got != want {
t.Errorf("got %q want %q", got, want)
}
})
}

10
main.go
View file

@ -1 +1,11 @@
package main
import (
"math/rand"
"os"
)
func main() {
random := rand.Intn(100)
LoopUntilFound(os.Stdout, os.Stdin, random)
}