misc tests

plugins/inputs/mysql/mysql_test.go

@@ -190,6 +190,8 @@ func TestParseValue(t *testing.T) {
 		{sql.RawBytes("YES"), 1, true},
 		{sql.RawBytes("No"), 0, true},
 		{sql.RawBytes("Yes"), 1, true},
+		{sql.RawBytes("-794"), int64(-794), true},
+		{sql.RawBytes("18446744073709552333"), float64(18446744073709552000), true},
 		{sql.RawBytes(""), nil, false},
 	}
 	for _, cases := range testCases {

plugins/inputs/tcp_listener/tcp_listener_test.go

@@ -274,7 +274,7 @@ func TestRunParserInvalidMsg(t *testing.T) {
 
 	scnr := bufio.NewScanner(buf)
 	for scnr.Scan() {
-		if strings.Contains(scnr.Text(), fmt.Sprintf(malformedwarn, 1)) {
+		if strings.Contains(scnr.Text(), "tcp_listener has received 1 malformed packets thus far.") {
 			break
 		}
 	}