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diff --git a/t/aggregate/unit_core_component.t b/t/aggregate/unit_core_component.t
new file mode 100644
index 0000000..69ac6c0
--- /dev/null
+++ b/t/aggregate/unit_core_component.t
@@ -0,0 +1,93 @@
+use Test::More tests => 22;
+use strict;
+use warnings;
+
+use_ok('Catalyst');
+
+my @complist = map { "MyApp::$_"; } qw/C::Controller M::Model V::View/;
+
+{
+  package MyApp;
+
+  use base qw/Catalyst/;
+
+  __PACKAGE__->components({ map { ($_, $_) } @complist });
+
+  # this is so $c->log->warn will work
+  __PACKAGE__->setup_log;
+}
+
+is(MyApp->comp('MyApp::V::View'), 'MyApp::V::View', 'Explicit return ok');
+
+is(MyApp->comp('C::Controller'), 'MyApp::C::Controller', 'Two-part return ok');
+
+is(MyApp->comp('Model'), 'MyApp::M::Model', 'Single part return ok');
+
+is_deeply([ MyApp->comp() ], \@complist, 'Empty return ok');
+
+# Is this desired behaviour?
+is_deeply([ MyApp->comp('Foo') ], \@complist, 'Fallthrough return ok');
+
+# regexp behavior
+{
+    is_deeply( [ MyApp->comp( qr{Model} ) ], [ 'MyApp::M::Model'], 'regexp ok' );
+    is_deeply( [ MyApp->comp('MyApp::V::View$') ], [ 'MyApp::V::View' ], 'Explicit return ok');
+    is_deeply( [ MyApp->comp('MyApp::C::Controller$') ], [ 'MyApp::C::Controller' ], 'Explicit return ok');
+    is_deeply( [ MyApp->comp('MyApp::M::Model$') ], [ 'MyApp::M::Model' ], 'Explicit return ok');
+
+    # a couple other varieties for regexp fallback
+    is_deeply( [ MyApp->comp('M::Model') ], [ 'MyApp::M::Model' ], 'Explicit return ok');
+
+    {
+        my $warnings = 0;
+        no warnings 'redefine';
+        local *Catalyst::Log::warn = sub { $warnings++ };
+
+        is_deeply( [ MyApp->comp('::M::Model') ], [ 'MyApp::M::Model' ], 'Explicit return ok');
+        ok( $warnings, 'regexp fallback warnings' );
+
+        $warnings = 0;
+        is_deeply( [ MyApp->comp('Mode') ], [ 'MyApp::M::Model' ], 'Explicit return ok');
+        ok( $warnings, 'regexp fallback warnings' );
+
+        $warnings = 0;
+        is(MyApp->comp('::M::'), 'MyApp::M::Model', 'Regex return ok');
+        ok( $warnings, 'regexp fallback for comp() warns' );
+    }
+
+}
+
+# multiple returns
+{
+    my @expected = sort qw( MyApp::C::Controller MyApp::M::Model );
+    my @got = sort MyApp->comp( qr{::[MC]::} );
+    is_deeply( \@got, \@expected, 'multiple results from regexp ok' );
+}
+
+# failed search
+{
+    is_deeply( scalar MyApp->comp( qr{DNE} ), 0, 'no results for failed search' );
+}
+
+
+#checking @args passed to ACCEPT_CONTEXT
+{
+    my $args;
+
+    {
+        no warnings 'once';
+        *MyApp::M::Model::ACCEPT_CONTEXT = sub { my ($self, $c, @args) = @_; $args= \@args};
+    }
+
+    my $c = bless {}, 'MyApp';
+
+    $c->component('MyApp::M::Model', qw/foo bar/);
+    is_deeply($args, [qw/foo bar/], 'args passed to ACCEPT_CONTEXT ok');
+
+    $c->component('M::Model', qw/foo2 bar2/);
+    is_deeply($args, [qw/foo2 bar2/], 'args passed to ACCEPT_CONTEXT ok');
+
+    $c->component('Mode', qw/foo3 bar3/);
+    is_deeply($args, [qw/foo3 bar3/], 'args passed to ACCEPT_CONTEXT ok');
+}
+