--- /dev/null
+use strict;
+use warnings;
+
+use Test::More;
+require Catalyst;
+require Module::Pluggable::Object;
+use MRO::Compat;
+
+# Get a list of all Catalyst:: packages in blib via M::P::O
+my @cat_mods;
+{
+ # problem with @INC on win32, see:
+ # http://rt.cpan.org/Ticket/Display.html?id=26452
+ if ($^O eq 'MSWin32') { require Win32; Win32::GetCwd(); }
+
+ local @INC = grep {/blib/} @INC;
+ @cat_mods = (
+ 'Catalyst',
+ Module::Pluggable::Object->new(search_path => ['Catalyst'])->plugins,
+ );
+}
+
+# plan one test per found package name
+plan tests => scalar @cat_mods;
+
+# Try to calculate the C3 MRO for each package
+#
+# In the case that the initial require fails (as in
+# Catalyst::Engine::FastCGI when FCGI is not installed),
+# the calculateMRO eval will not error out, which is
+# effectively a test skip.
+#
+foreach my $cat_mod (@cat_mods) {
+ eval " require $cat_mod ";
+ eval { mro::get_linear_isa($cat_mod, 'c3') };
+ ok(!$@, "calculateMRO for $cat_mod: $@");
+}
+