diff --git a/compiler/erg_parser/tests/test1_basic_syntax.er b/compiler/erg_parser/tests/test1_basic_syntax.er
index 8b8d5a9b..4eddb3ff 100644
--- a/compiler/erg_parser/tests/test1_basic_syntax.er
+++ b/compiler/erg_parser/tests/test1_basic_syntax.er
@@ -1,5 +1,13 @@
-# 基本的な構文をパーサーがパスできるかチェックする
-# Check that a parser can pass the basic syntax
+#[
+基本的な構文をパーサーがパスできるかチェックする
+Check that a parser can pass the basic syntax
+    #[
+        `#[`から`]#`までが複数行コメントとして扱われる
+        コメント内部で入れ子で複数行コメントを付けれるが、閉じ忘れに注意
+        The comment from `#[` to `]#` is treated as a multi-line comment.
+        Nested multi-line comments can be added inside comments, but be careful not to forget to close them.
+    ]#
+]#
 
 _a = 1_234 + 1113.* 3_000.2e-4 ** 0003 * .4
 a, _, ...b = five_elem_tuple
@@ -7,6 +15,10 @@ f x, y =
     x + y
 if! True, do!:
     print! "\"\\hello, world\\\""
+    #[
+        indented comment
+dedented comment
+    ]#
     10.times! do!:
         if! x.y.z, do!:
             print! ""
diff --git a/compiler/erg_parser/tests/tokenize_test.rs b/compiler/erg_parser/tests/tokenize_test.rs
index 6371de34..fca29d8b 100644
--- a/compiler/erg_parser/tests/tokenize_test.rs
+++ b/compiler/erg_parser/tests/tokenize_test.rs
@@ -18,7 +18,6 @@ fn test_lexer_for_basic() -> ParseResult<()> {
     let mut lexer = Lexer::new(Input::File(FILE1.into()));
     let newline = "\n";
     let /*mut*/ token_array = vec![
-        (Newline, newline),
         (Newline, newline),
         (Newline, newline),
         (Symbol, "_a"),
@@ -64,6 +63,7 @@ fn test_lexer_for_basic() -> ParseResult<()> {
         (Symbol, "print!"),
         (StrLit, "\"\"\\hello, world\\\"\""),
         (Newline, newline),
+        (Newline, newline),
         (NatLit, "10"),
         (Dot, "."),
         (Symbol, "times!"),