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diff --git a/t/03invalid_tc.t b/t/03invalid_tc.t
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+=head1 PURPOSE
+
+Check that we get error messages about unrecognisable type constraints.
+
+=head1 AUTHOR
+
+Toby Inkster E<lt>tobyink@cpan.orgE<gt>.
+
+=head1 COPYRIGHT AND LICENCE
+
+This software is copyright (c) 2012-2013 by Toby Inkster.
+
+This is free software; you can redistribute it and/or modify it under
+the same terms as the Perl 5 programming language system itself.
+
+=cut
+
+use strict;
+use warnings;
+
+use Test::More;
+
+$@ = undef;
+ok !eval q {
+# line 1 "embedded"
+	package Foo;
+	use Moo;
+	use MooX::late;
+	has foo => (is => 'ro', isa => 'X Y Z', required => 0);
+	1;
+};
+
+like(
+	$@,
+	qr{^Unexpected tail on type expression:  Y Z},
+	'error message looks ok',
+);
+
+done_testing;