1 files changed, 37 insertions, 0 deletions
diff --git a/src/cmd/fix/iocopyn_test.go b/src/cmd/fix/iocopyn_test.go
new file mode 100644
index 000000000..f86fad763
--- /dev/null
+++ b/src/cmd/fix/iocopyn_test.go
@@ -0,0 +1,37 @@
+// Copyright 2011 The Go Authors.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+func init() {
+	addTestCases(ioCopyNTests, ioCopyN)
+}
+
+var ioCopyNTests = []testCase{
+	{
+		Name: "io.CopyN.0",
+		In: `package main
+
+import (
+	"io"
+)
+
+func f() {
+	io.Copyn(dst, src)
+	foo.Copyn(dst, src)
+}
+`,
+		Out: `package main
+
+import (
+	"io"
+)
+
+func f() {
+	io.CopyN(dst, src)
+	foo.Copyn(dst, src)
+}
+`,
+	},
+}