From 3ecfced5752fa7a4da4aae7fdb8ea4f458d2741e Mon Sep 17 00:00:00 2001
From: Nathan Perry <nathan@meta.sc>
Date: Thu, 30 Jun 2016 18:53:11 -0400
Subject: [PATCH] field: test CanSet failure

---
 field_test.go | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/field_test.go b/field_test.go
index b77e951..de9dc3b 100644
--- a/field_test.go
+++ b/field_test.go
@@ -133,6 +133,20 @@ func TestField_Set(t *testing.T) {
 	}
 }
 
+func TestField_NotSettable(t *testing.T) {
+	a := map[int]Baz{
+		4: Baz{
+			A: "value",
+		},
+	}
+
+	s := New(a[4])
+
+	if err := s.Field("A").Set("newValue"); err != errNotSettable {
+		t.Errorf("Trying to set non-settable field should error with %q. Got %q instead.", errNotSettable, err)
+	}
+}
+
 func TestField_Zero(t *testing.T) {
 	s := newStruct()