Fix User UpdateError

types/errors.go

@@ -40,17 +40,16 @@ func (e *UserUpdateError) Error() string {
 	for k, e := range e.Errors {
 		errors = append(errors, fmt.Sprintf("%s: %v", k, e))
 	}
-	return strings.Join(errors, ",")
+	return strings.Join(errors, ", ")
 }
 
 //NewUpdateError returns an UpdateError based on an UpdateError channel
-func NewUpdateError(errors chan UpdateError) *UserUpdateError {
-	var ue UserUpdateError
+func NewUpdateError(errors chan *UpdateError) *UserUpdateError {
+	ue := UserUpdateError{map[string]error{}}
 	for e := range errors {
-		if ue.Errors == nil {
-			ue.Errors = map[string]error{e.Field: e.Error}
+		if e != nil {
+			ue.Errors[e.Field] = e.Error
 		}
-		ue.Errors[e.Field] = e.Error
 	}
 	if len(ue.Errors) > 0 {
 		return &ue

types/errors_test.go

@@ -0,0 +1,46 @@
+package types
+
+import (
+	"errors"
+	"github.com/stretchr/testify/assert"
+	"strconv"
+	"sync"
+	"testing"
+)
+
+func TestUserUpdateErrors(t *testing.T) {
+	exp := map[string]error{}
+	errs := make(chan *UpdateError)
+	go func() {
+		for i := 0; i < 10; i++ {
+			f := strconv.Itoa(i)
+			e := errors.New(f)
+			err := UpdateError{
+				Field: f,
+				Error: e,
+			}
+			exp[f] = e
+			errs <- &err
+		}
+		close(errs)
+	}()
+	uerrs := NewUpdateError(errs)
+	assert.Equal(t, exp, uerrs.Errors)
+	assert.NotEmpty(t, uerrs.Error())
+}
+
+func TestUserUpdateErrorsNil(t *testing.T) {
+	var wg sync.WaitGroup
+	errs := make(chan *UpdateError)
+	wg.Add(1)
+	go func() {
+		errs <- nil
+		wg.Done()
+	}()
+	go func() {
+		wg.Wait()
+		close(errs)
+	}()
+	uerrs := NewUpdateError(errs)
+	assert.Nil(t, uerrs)
+}