1 files changed, 45 insertions, 0 deletions
diff --git a/rt/t/ticket/circular_links.t b/rt/t/ticket/circular_links.t
new file mode 100644
index 0000000..b6695fe
--- /dev/null
+++ b/rt/t/ticket/circular_links.t
@@ -0,0 +1,45 @@
+use strict;
+use warnings;
+
+use RT::Test tests => undef;
+
+my ( $foo, $bar, $baz ) = RT::Test->create_tickets(
+    { Queue   => 'General' },
+    { Subject => 'foo' },
+    { Subject => 'bar' },
+    { Subject => 'baz' }
+);
+
+diag "test circular DependsOn";
+my ( $status, $msg ) = $foo->AddLink( Type => 'DependsOn', Target => $bar->id );
+ok( $status, "foo depends on bar" );
+( $status, $msg ) = $foo->AddLink( Type => 'DependsOn', Base => $bar->id );
+ok( !$status, "foo can't be depended on bar" );
+( $status, $msg ) = $bar->AddLink( Type => 'DependsOn', Target => $foo->id );
+ok( !$status, "bar can't depend on foo back" );
+( $status, $msg ) = $bar->AddLink( Type => 'DependsOn', Target => $baz->id );
+ok( $status, "bar depends on baz" );
+( $status, $msg ) = $baz->AddLink( Type => 'DependsOn', Target => $foo->id );
+ok( !$status, "baz can't depend on foo back" );
+
+
+diag "test circular MemberOf";
+( $status, $msg ) = $foo->AddLink( Type => 'MemberOf', Target => $bar->id );
+ok( $status, "foo is a member of bar" );
+( $status, $msg ) = $foo->AddLink( Type => 'MemberOf', Base => $bar->id );
+ok( !$status, "foo can't have member bar" );
+( $status, $msg ) = $bar->AddLink( Type => 'MemberOf', Target => $foo->id );
+ok( !$status, "bar can't be a member of foo" );
+( $status, $msg ) = $bar->AddLink( Type => 'MemberOf', Target => $baz->id );
+ok( $status, "baz is a member of bar" );
+( $status, $msg ) = $baz->AddLink( Type => 'DependsOn', Target => $foo->id );
+ok( !$status, "baz can't be a member of foo" );
+
+
+diag "test circular RefersTo";
+( $status, $msg ) = $foo->AddLink( Type => 'RefersTo', Target => $bar->id );
+ok( $status, "foo refers to bar" );
+( $status, $msg ) = $foo->AddLink( Type => 'RefersTo', Base => $bar->id );
+ok( $status, "foo can be referred to by bar" );
+
+done_testing;