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diff --git a/t/roles/role_composite_exclusion.t b/t/roles/role_composite_exclusion.t
new file mode 100644
index 0000000..8b9ae2e
--- /dev/null
+++ b/t/roles/role_composite_exclusion.t
@@ -0,0 +1,109 @@
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+
+use Test::More;
+use Test::Fatal;
+
+use Moose::Meta::Role::Application::RoleSummation;
+use Moose::Meta::Role::Composite;
+
+{
+    package Role::Foo;
+    use Moose::Role;
+
+    package Role::Bar;
+    use Moose::Role;
+
+    package Role::ExcludesFoo;
+    use Moose::Role;
+    excludes 'Role::Foo';
+
+    package Role::DoesExcludesFoo;
+    use Moose::Role;
+    with 'Role::ExcludesFoo';
+
+    package Role::DoesFoo;
+    use Moose::Role;
+    with 'Role::Foo';
+}
+
+ok(Role::ExcludesFoo->meta->excludes_role('Role::Foo'), '... got the right exclusions');
+ok(Role::DoesExcludesFoo->meta->excludes_role('Role::Foo'), '... got the right exclusions');
+
+# test simple exclusion
+isnt( exception {
+    Moose::Meta::Role::Application::RoleSummation->new->apply(
+        Moose::Meta::Role::Composite->new(
+            roles => [
+                Role::Foo->meta,
+                Role::ExcludesFoo->meta,
+            ]
+        )
+    );
+}, undef, '... this fails as expected' );
+
+# test no conflicts
+{
+    my $c = Moose::Meta::Role::Composite->new(
+        roles => [
+            Role::Foo->meta,
+            Role::Bar->meta,
+        ]
+    );
+    isa_ok($c, 'Moose::Meta::Role::Composite');
+
+    is($c->name, 'Role::Foo|Role::Bar', '... got the composite role name');
+
+    is( exception {
+        Moose::Meta::Role::Application::RoleSummation->new->apply($c);
+    }, undef, '... this lives as expected' );
+}
+
+# test no conflicts w/exclusion
+{
+    my $c = Moose::Meta::Role::Composite->new(
+        roles => [
+            Role::Bar->meta,
+            Role::ExcludesFoo->meta,
+        ]
+    );
+    isa_ok($c, 'Moose::Meta::Role::Composite');
+
+    is($c->name, 'Role::Bar|Role::ExcludesFoo', '... got the composite role name');
+
+    is( exception {
+        Moose::Meta::Role::Application::RoleSummation->new->apply($c);
+    }, undef, '... this lives as expected' );
+
+    is_deeply([$c->get_excluded_roles_list], ['Role::Foo'], '... has excluded roles');
+}
+
+
+# test conflict with an "inherited" exclusion
+isnt( exception {
+    Moose::Meta::Role::Application::RoleSummation->new->apply(
+        Moose::Meta::Role::Composite->new(
+            roles => [
+                Role::Foo->meta,
+                Role::DoesExcludesFoo->meta,
+            ]
+        )
+    );
+
+}, undef, '... this fails as expected' );
+
+# test conflict with an "inherited" exclusion of an "inherited" role
+isnt( exception {
+    Moose::Meta::Role::Application::RoleSummation->new->apply(
+        Moose::Meta::Role::Composite->new(
+            roles => [
+                Role::DoesFoo->meta,
+                Role::DoesExcludesFoo->meta,
+            ]
+        )
+    );
+}, undef, '... this fails as expected' );
+
+done_testing;