final receipt update

Inspectron.Epson.Templates.Tests/Language/CommentTests.cs

@@ -216,4 +216,70 @@ Line 3";
     }
 
     #endregion
+
+    #region Comment lines should not produce empty lines
+
+    [Fact]
+    public void Tokenize_ConsecutiveCommentLines_ProduceNoNewLineTokens()
+    {
+        var lexer = new Lexer("@**@\n@**@\n@**@");
+        var result = lexer.Tokenize();
+
+        Assert.False(result.HasErrors);
+        // Should only have EOF token, no NewLine tokens for comment-only lines
+        Assert.DoesNotContain(result.Tokens, t => t.Type == TokenType.NewLine);
+    }
+
+    [Fact]
+    public void Tokenize_CommentLineBetweenContent_NoExtraNewLines()
+    {
+        var lexer = new Lexer("Line1\n@**@\nLine2");
+        var result = lexer.Tokenize();
+
+        Assert.False(result.HasErrors);
+        // Should have exactly 2 NewLine tokens (after Line1 and after Line2)
+        var newLineCount = result.Tokens.Count(t => t.Type == TokenType.NewLine);
+        Assert.Equal(2, newLineCount);
+    }
+
+    [Fact]
+    public void Tokenize_MultipleConsecutiveCommentLines_NoNewLines()
+    {
+        var lexer = new Lexer("Header\n@* comment 1 *@\n@* comment 2 *@\n@* comment 3 *@\nFooter");
+        var result = lexer.Tokenize();
+
+        Assert.False(result.HasErrors);
+        Assert.Contains(result.Tokens, t => t.Type == TokenType.Text && t.Value == "Header");
+        Assert.Contains(result.Tokens, t => t.Type == TokenType.Text && t.Value == "Footer");
+        // Should have exactly 2 NewLine tokens (after Header and after Footer)
+        var newLineCount = result.Tokens.Count(t => t.Type == TokenType.NewLine);
+        Assert.Equal(2, newLineCount);
+    }
+
+    [Fact]
+    public void Tokenize_EmptyLinesBetweenContent_ProducesNewLines()
+    {
+        var lexer = new Lexer("Line1\n\n\nLine2");
+        var result = lexer.Tokenize();
+
+        Assert.False(result.HasErrors);
+        // Should have 4 NewLine tokens (after Line1, after each empty line, after Line2)
+        var newLineCount = result.Tokens.Count(t => t.Type == TokenType.NewLine);
+        Assert.Equal(4, newLineCount);
+    }
+
+    [Fact]
+    public void Tokenize_EmptyLinesPreserved_CommentsRemoved()
+    {
+        var lexer = new Lexer("Header\n\n@* comment *@\n\nFooter");
+        var result = lexer.Tokenize();
+
+        Assert.False(result.HasErrors);
+        // Should have 4 NewLine tokens: after Header, after first empty line, after second empty line, after Footer
+        // The comment line should NOT produce a NewLine
+        var newLineCount = result.Tokens.Count(t => t.Type == TokenType.NewLine);
+        Assert.Equal(4, newLineCount);
+    }
+
+    #endregion
 }