verify building message

outMsg_test.go

 import "testing"
 
 func TestBuildTxtMsg(t *testing.T) {
-	BuildTextMsg("你好", "oUN420bxqFqlx0ZQHciUOesZO3PE")
+	SetupConfig()
+	s, _ := BuildTextMsg("你好", "oUN420bxqFqlx0ZQHciUOesZO3PE")
+	e := ReadEncryptedMsg(s)
+	sd := Decode(e.Encrypt)
+	h := ReadCommonHeader(sd)
+	m := ReadTextMsg(sd)
+	AssertEqual(t, m.Content, "你好", "Message content => wrong")
+	AssertEqual(t, h.ToUserName, "oUN420bxqFqlx0ZQHciUOesZO3PE", "ToUserName => wrong")
 }
 
-func TextCalculateSignature (t *testing.T ){
-	
-}
+func TestCalculateSignature(t *testing.T) {
+
+}