Add test for parser and render options

MANIFEST

@@ -23,6 +23,7 @@ t/07_tree_manip.t
 t/08_create_helpers.t
 t/09_version.t
 t/10_wrappers.t
+t/11_options.t
 t/20_errors.t
 t/30_leakcheck.t
 t/author-pod-syntax.t

t/11_options.t

@@ -0,0 +1,52 @@
+use strict;
+use warnings;
+
+use Encode;
+use Test::More tests => 9;
+
+BEGIN {
+    use_ok('CommonMark', ':opt');
+}
+
+my ($md, $expected);
+
+$md = "aaa\n\nbbb";
+$expected = <<'EOF';
+<p data-sourcepos="1:1-1:3">aaa</p>
+<p data-sourcepos="3:1-3:3">bbb</p>
+EOF
+is(CommonMark->markdown_to_html($md, OPT_SOURCEPOS), $expected, 'SOURCEPOS');
+
+$md = "a\nb";
+is(CommonMark->markdown_to_html($md, OPT_HARDBREAKS), "<p>a<br />\nb</p>\n",
+   'HARDBREAKS');
+is(CommonMark->markdown_to_html($md, OPT_NOBREAKS), "<p>a b</p>\n",
+   'NOBREAKS');
+is(CommonMark->markdown_to_html($md), "<p>a\nb</p>\n",
+   'without HARDBREAKS or NOBREAKS');
+
+$md = <<'EOF';
+<script>alert('XSS')</script>
+
+a <b/> [link](javascript:alert('XSS'))
+EOF
+$expected = <<'EOF';
+<!-- raw HTML omitted -->
+<p>a <!-- raw HTML omitted --> <a href="">link</a></p>
+EOF
+is(CommonMark->markdown_to_html($md, OPT_SAFE), $expected, 'SAFE');
+
+$md = "a\xC0b";
+Encode::_utf8_on($md);
+is(CommonMark->markdown_to_html($md, OPT_VALIDATE_UTF8), "<p>a\x{FFFD}b</p>\n",
+   'VALIDATE_UTF8');
+my $html = CommonMark->markdown_to_html($md);
+Encode::_utf8_off($html);
+is($html, "<p>a\xC0b</p>\n", 'without VALIDATE_UTF8');
+
+$md = q{"a" -- 'b' --- c};
+$expected = <<"EOF";
+<p>\x{201C}a\x{201D} \x{2013} \x{2018}b\x{2019} \x{2014} c</p>
+EOF
+is(CommonMark->markdown_to_html($md, OPT_SMART), $expected, 'SMART');
+