From 2a391f467d25354477013cc28f2d41f8dae39604 Mon Sep 17 00:00:00 2001
From: Robert Griesemer <gri@golang.org>
Date: Fri, 7 Sep 2012 16:28:15 -0700
Subject: [PATCH] go/scanner: add missing BOM test

R=r
CC=golang-dev
https://golang.org/cl/6498106
---
 src/pkg/go/scanner/scanner_test.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/pkg/go/scanner/scanner_test.go b/src/pkg/go/scanner/scanner_test.go
index 119679a31f..1c19053e64 100644
--- a/src/pkg/go/scanner/scanner_test.go
+++ b/src/pkg/go/scanner/scanner_test.go
@@ -346,6 +346,7 @@ var lines = []string{
 	// # indicates a semicolon present in the source
 	// $ indicates an automatically inserted semicolon
 	"",
+	"\ufeff#;", // first BOM is ignored
 	"#;",
 	"foo$\n",
 	"123$\n",
@@ -694,6 +695,7 @@ var errors = []struct {
 	{"0X", token.INT, 0, "illegal hexadecimal number"},
 	{"\"abc\x00def\"", token.STRING, 4, "illegal character NUL"},
 	{"\"abc\x80def\"", token.STRING, 4, "illegal UTF-8 encoding"},
+	{"\ufeff\ufeff", token.ILLEGAL, 3, "illegal character U+FEFF"}, // only first BOM is ignored
 }
 
 func TestScanErrors(t *testing.T) {
-- 
2.48.1