add functions/vendor files

vendor/github.com/fsouza/go-dockerclient/change_test.go

@@ -0,0 +1,24 @@
+// Copyright 2014 go-dockerclient 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 docker
+
+import "testing"
+
+func TestChangeString(t *testing.T) {
+	var tests = []struct {
+		change   Change
+		expected string
+	}{
+		{Change{"/etc/passwd", ChangeModify}, "C /etc/passwd"},
+		{Change{"/etc/passwd", ChangeAdd}, "A /etc/passwd"},
+		{Change{"/etc/passwd", ChangeDelete}, "D /etc/passwd"},
+		{Change{"/etc/passwd", 33}, " /etc/passwd"},
+	}
+	for _, tt := range tests {
+		if got := tt.change.String(); got != tt.expected {
+			t.Errorf("Change.String(): want %q. Got %q.", tt.expected, got)
+		}
+	}
+}