Different solution for Gophercise 1

1. Quiz Game Sol2/students/hackeryarn/myquiz/myquiz.go

@@ -0,0 +1,40 @@
+package quiz
+
+import (
+	"fmt"
+	"io"
+
+	"github.com/gophercises/quiz/students/hackeryarn/problem"
+)
+
+// Quiz represents the quiz to be given to the user
+type Quiz struct {
+	problems     []problem.Problem
+	rightAnswers int
+}
+
+// Run runs the quiz for all the problems keeping track of correct answers
+func (q *Quiz) Run(w io.Writer, r io.Reader) {
+	for _, problem := range q.problems {
+		problem.AskQuestion(w)
+		correct := problem.CheckAnswer(r)
+		if correct {
+			q.rightAnswers++
+		}
+	}
+
+	q.PrintResults(w)
+}
+
+// PrintResults outputs the results of the quiz
+func (q Quiz) PrintResults(w io.Writer) {
+	fmt.Fprintf(w, "You got %d questions right!\n", q.rightAnswers)
+}
+
+// New creates a new quiz from the supplied slice of problems
+func New(problems []problem.Problem) Quiz {
+	return Quiz{
+		problems:     problems,
+		rightAnswers: 0,
+	}
+}

1. Quiz Game Sol2/students/hackeryarn/myquiz/myquiz_test.go

@@ -0,0 +1,66 @@
+package quiz
+
+import (
+	"bytes"
+	"io"
+	"reflect"
+	"strings"
+	"testing"
+
+	"github.com/gophercises/quiz/students/hackeryarn/problem"
+)
+
+func TestNew(t *testing.T) {
+	problems := sampleProblems()
+
+	want := Quiz{problems: problems, rightAnswers: 0}
+	got := New(problems)
+
+	if !reflect.DeepEqual(want, got) {
+		t.Errorf("expeted to create quiz %v got %v", want, got)
+	}
+}
+
+func TestRun(t *testing.T) {
+	t.Run("it runs the quiz", func(t *testing.T) {
+		buffer := &bytes.Buffer{}
+		quiz := createQuiz()
+		runQuiz(buffer, &quiz)
+
+		expectedResults := 2
+		results := quiz.rightAnswers
+
+		if expectedResults != results {
+			t.Errorf("expected right answers of %v, got %v",
+				expectedResults, results)
+		}
+
+		expectedOutput := "7+3: 1+1: You got 2 questions right!\n"
+
+		if buffer.String() != expectedOutput {
+			t.Errorf("expected full output %v, got %v",
+				expectedOutput, buffer)
+		}
+
+	})
+}
+
+func sampleProblems() []problem.Problem {
+	record1 := []string{"7+3", "10"}
+	record2 := []string{"1+1", "2"}
+
+	return []problem.Problem{
+		problem.New(record1),
+		problem.New(record2),
+	}
+}
+
+func createQuiz() Quiz {
+	problems := sampleProblems()
+	return New(problems)
+}
+
+func runQuiz(buffer io.Writer, quiz *Quiz) {
+	answers := strings.NewReader("10\n2\n")
+	quiz.Run(buffer, answers)
+}