Handle error when reading user input

cmd/validate.go

@@ -4,7 +4,6 @@ import (
 	"fmt"
 	"github.com/TwiN/go-color"
 	"github.com/rockstaedt/txtreader"
-	"log"
 	"rockstaedt/commit-message-check/internal/model"
 )
 
@@ -31,9 +30,9 @@ func (h *Handler) validate() int {
 		h.notify("Subject line too long. Do you want to abort? (y/n)", "red")
 
 		var decision string
-		_, err := fmt.Fscanln(h.Reader, &decision)
-		if err != nil {
-			log.Fatal(err)
+		if _, err := fmt.Fscanln(h.Reader, &decision); err != nil {
+			h.notify("Could not read user input.", "red")
+			return 1
 		}
 
 		if decision == "y" {

cmd/validate_test.go

@@ -49,7 +49,7 @@ func TestValidate(t *testing.T) {
 		handler := NewHandler(model.Config{CommitMsgFile: testFile})
 		handler.Writer = buffer
 
-		t.Run("user confirms abort", func(t *testing.T) {
+		t.Run("user confirms abort returns 1", func(t *testing.T) {
 			buffer.Reset()
 			handler.Reader = bytes.NewReader([]byte("y"))
 
@@ -58,14 +58,25 @@ func TestValidate(t *testing.T) {
 			assert.Contains(t, buffer.String(), color.Red+"Subject line too long. Do you want to abort? (y/n)")
 			assert.Equal(t, 1, status)
 		})
-		t.Run("user declines abort", func(t *testing.T) {
+
+		t.Run("user declines abort returns 0", func(t *testing.T) {
 			buffer.Reset()
 			handler.Reader = bytes.NewReader([]byte("n"))
 
 			status := handler.Run("validate")
 
 			assert.Equal(t, 0, status)
 		})
+
+		t.Run("error at reading user input returns 1", func(t *testing.T) {
+			buffer.Reset()
+			handler.Reader = bytes.NewReader([]byte(""))
+
+			status := handler.Run("validate")
+
+			assert.Equal(t, 1, status)
+			assert.Contains(t, buffer.String(), color.Red+"Could not read user input.")
+		})
 	})
 
 	t.Run("returns 1 when error at reading file", func(t *testing.T) {