Prepending time formats when using RegisterTimeFormats

binding/binding.go

@@ -51,7 +51,7 @@ var timeFormats = []string{
 // RegisterTimeFormats allows to add custom time layouts that
 // the binder will be able to use for decoding.
 func RegisterTimeFormats(layouts ...string) {
-	timeFormats = append(timeFormats, layouts...)
+	timeFormats = append(layouts, timeFormats...)
 }
 
 // RegisterCustomDecorder allows to define custom type decoders.

binding/binding_test.go

@@ -20,3 +20,14 @@ func TestParseTime(t *testing.T) {
 	expected := time.Date(2017, time.January, 1, 0, 0, 0, 0, time.UTC)
 	r.Equal(expected, tt)
 }
+
+func TestParseTimeConflicting(t *testing.T) {
+	RegisterTimeFormats("2006-02-01")
+
+	r := require.New(t)
+	tt, err := parseTime([]string{"2017-01-10"})
+
+	r.NoError(err)
+	expected := time.Date(2017, time.October, 1, 0, 0, 0, 0, time.UTC)
+	r.Equal(expected, tt)
+}