Different solution for Gophercise 1

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

@@ -0,0 +1,49 @@
+package problem
+
+import (
+	"fmt"
+	"io"
+	"log"
+	"strings"
+)
+
+// Problem represents a single question answer pair
+type Problem struct {
+	question string
+	answer   string
+}
+
+// CheckAnswer checks the answer against the provided input
+func (p Problem) CheckAnswer(r io.Reader) bool {
+	answer := readAnswer(r)
+
+	if answer != p.answer {
+		return false
+	}
+	return true
+}
+
+func readAnswer(r io.Reader) (answer string) {
+	_, err := fmt.Fscanln(r, &answer)
+	if err != nil {
+		log.Fatalln("Error reading in answer", err)
+	}
+
+	return strings.TrimSpace(answer)
+}
+
+// AskQuestion prints out the question
+func (p Problem) AskQuestion(w io.Writer) {
+	_, err := fmt.Fprintf(w, "%s: ", p.question)
+	if err != nil {
+		log.Fatalln("Could not ask the question", err)
+	}
+}
+
+// New creates a Problem from a provided CSV record
+func New(record []string) Problem {
+	return Problem{
+		question: record[0],
+		answer:   record[1],
+	}
+}

1. Quiz Game Sol2/students/hackeryarn/problem/problem_test.go

@@ -0,0 +1,68 @@
+package problem
+
+import (
+	"bytes"
+	"testing"
+)
+
+func TestNew(t *testing.T) {
+	record := []string{"question", "answer"}
+
+	want := Problem{"question", "answer"}
+	got := New(record)
+
+	if got != want {
+		t.Errorf("expected to create problem %v got %v", want, got)
+	}
+}
+
+func TestCheckAnswer(t *testing.T) {
+	problem := createProblem()
+
+	t.Run("it checks the correct answer", func(t *testing.T) {
+		answer := getAnswer(problem, "10\n")
+
+		checkAnswer(t, answer, true)
+	})
+
+	t.Run("it checks incorrect answer", func(t *testing.T) {
+		answer := getAnswer(problem, "2\n")
+
+		checkAnswer(t, answer, false)
+	})
+}
+
+func TestAskQuestion(t *testing.T) {
+	problem := createProblem()
+
+	t.Run("it asks the question", func(t *testing.T) {
+		buffer := bytes.NewBuffer(nil)
+
+		problem.AskQuestion(buffer)
+
+		want := "7+3: "
+		got := buffer.String()
+
+		if want != got {
+			t.Errorf("Expected question %s, got %s", want, got)
+		}
+	})
+
+}
+
+func createProblem() Problem {
+	record := []string{"7+3", "10"}
+	return New(record)
+}
+
+func getAnswer(problem Problem, input string) bool {
+	r := bytes.NewBufferString(input)
+
+	return problem.CheckAnswer(r)
+}
+
+func checkAnswer(t *testing.T, got, want bool) {
+	if want != got {
+		t.Errorf("Expected to return %v got %v", want, got)
+	}
+}