From b453a5c93d7ec305d1e664bb24eea2cc77ccc761 Mon Sep 17 00:00:00 2001
From: Ryo Nihei <nihei.dev@gmail.com>
Date: Sun, 20 Jun 2021 02:52:06 +0900
Subject: Add syntax of comments

---
 spec/lexer_test.go | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'spec/lexer_test.go')

diff --git a/spec/lexer_test.go b/spec/lexer_test.go
index 1edf15c..484ad30 100644
--- a/spec/lexer_test.go
+++ b/spec/lexer_test.go
@@ -32,6 +32,21 @@ func TestLexer_Run(t *testing.T) {
 				newEOFToken(),
 			},
 		},
+		{
+			caption: "the lexer ignores line comments",
+			src: `
+// This is the first comment.
+foo
+// This is the second comment.
+// This is the third comment.
+bar // This is the fourth comment.
+`,
+			tokens: []*token{
+				newIDToken("foo"),
+				newIDToken("bar"),
+				newEOFToken(),
+			},
+		},
 		{
 			caption: "an unclosed terminal is not a valid token",
 			src:     `"abc`,
-- 
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