Fixed bug and added more tests

logs/color.go

@@ -0,0 +1,28 @@
+// Copyright 2014 beego Author. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build !windows
+
+package logs
+
+import "io"
+
+type ansiColorWriter struct {
+	w    io.Writer
+	mode outputMode
+}
+
+func (cw *ansiColorWriter) Write(p []byte) (int, error) {
+	return cw.w.Write(p)
+}