diff --git a/t/data.t b/t/data.t
new file mode 100644
index 0000000..b33c641
--- /dev/null
+++ b/t/data.t
@@ -0,0 +1,29 @@
+use strict;
+use warnings;
+use Test::More;
+use Test::XML::Loy;
+
+use_ok('KorAP::XML::TEI::Data');
+
+my $d = KorAP::XML::TEI::Data->new;
+
+ok($d, 'Constructed');
+
+is($d->position, 0, 'Position');
+ok($d->append('aaa'), 'Add raw data');
+is($d->position, 3, 'Position');
+ok($d->reset, 'Reset');
+is($d->position, 0, 'Position');
+
+
+ok($d->append('  Dies ist '), 'Add raw data');
+is($d->position, 11, 'Position');
+ok($d->append("Ein Versuch\n"), 'Add raw data');
+is($d->position, 23, 'Position');
+
+my $loy = Test::XML::Loy->new($d->to_string('x'));
+
+$loy->attr_is('raw_text', 'docid', 'x')
+  ->text_is('raw_text text', '  Dies ist Ein Versuch ');
+
+done_testing;