feat: add unit tests

t/05-lists.t

@@ -0,0 +1,40 @@
+#!/usr/bin/env perl
+use strict;
+use warnings;
+
+use Test::More tests => 6;
+use MarkdownParser;
+
+my $parser = MarkdownParser->new();
+
+is(
+    $parser->parse("- Item 1\n- Item 2\n- Item 3"),
+    "<ul>\n<li>Item 1</li>\n<li>Item 2</li>\n<li>Item 3</li>\n</ul>\n",
+    "Unordered list with -"
+);
+is(
+    $parser->parse("* Item 1\n* Item 2"),
+    "<ul>\n<li>Item 1</li>\n<li>Item 2</li>\n</ul>\n",
+    "Unordered list with *"
+);
+is(
+    $parser->parse("+ Item 1\n+ Item 2"),
+    "<ul>\n<li>Item 1</li>\n<li>Item 2</li>\n</ul>\n",
+    "Unordered list with +"
+);
+is(
+    $parser->parse("1. First item\n2. Second item\n3. Third item"),
+"<ol>\n<li>First item</li>\n<li>Second item</li>\n<li>Third item</li>\n</ol>\n",
+    "Ordered list"
+);
+is(
+    $parser->parse("- Item 1\n\n- Item 2"),
+    "<ul>\n<li>Item 1</li>\n</ul>\n<ul>\n<li>Item 2</li>\n</ul>\n",
+    "Multiple list blocks"
+);
+is(
+    $parser->parse("- **Bold item**\n- *Italic item*"),
+"<ul>\n<li><strong>Bold item</strong></li>\n<li><em>Italic item</em></li>\n</ul>\n",
+    "List items with formatting"
+);
+