From a528a3085290a55613949f2cd363e6fd57bf67ee Mon Sep 17 00:00:00 2001
From: mattn <mattn.jp@gmail.com>
Date: Mon, 26 Jan 2015 18:36:21 +0900
Subject: [PATCH] Add test for ErrNo.Extend()

---
 error_test.go | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/error_test.go b/error_test.go
index a006188..1ccbe5b 100644
--- a/error_test.go
+++ b/error_test.go
@@ -231,6 +231,12 @@ func TestExtendedErrorCodes_Unique(t *testing.T) {
 			t.Errorf("Wrong extended error code: %d != %d",
 				sqliteErr.ExtendedCode, ErrConstraintUnique)
 		}
+		extended := sqliteErr.Code.Extend(3).Error()
+		expected := "constraint failed"
+		if extended != expected {
+			t.Errorf("Wrong basic error code: %q != %q",
+				extended, expected)
+		}
 	}
 
 }