is(html('MyPkg')->load, 'bar');
+# Test that all characters that should be escaped are escaped
+
+my $raw_characters = q{<>&"'};
+my $expected_output = q{<tag><>&"'</tag>};
+my $html = html('<tag>').$raw_characters.html('</tag>');
+is($html, $expected_output);
+
+ok(HTML::String::Value->isa('HTML::String::Value'), 'isa on class ok');
+
+is($@, '', '$@ not set by check');
+
+is do {
+ use HTML::String::Overload;
+ '' . '0'
+}, '0', 'concatenating strings which are false in boolean context';
+
done_testing;