fqdn comparison: expand test scope

Add some negative tests to ensure a `return true` (exaggerated)
refactoring won't pass the suite, and add one test where a and b is
the same, just to be sure.

Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>

diff --git a/proxmox-installer-common/src/utils.rs b/proxmox-installer-common/src/utils.rs
index ddfd7a1e725317bba196ce22dd60160dd206752c..8d320759b518d309307ad853c73592fe128456da 100644 (file)
--- a/proxmox-installer-common/src/utils.rs
+++ b/proxmox-installer-common/src/utils.rs
@@ -338,7 +338,11 @@ mod tests {
 
     #[test]
     fn fqdn_compare() {
+        assert_eq!(Fqdn::from("example.com"), Fqdn::from("example.com"));
         assert_eq!(Fqdn::from("example.com"), Fqdn::from("ExAmPle.Com"));
         assert_eq!(Fqdn::from("ExAmPle.Com"), Fqdn::from("example.com"));
+        assert_ne!(Fqdn::from("subdomain.ExAmPle.Com"), Fqdn::from("example.com"));
+        assert_ne!(Fqdn::from("foo.com"), Fqdn::from("bar.com"));
+        assert_ne!(Fqdn::from("example.com"), Fqdn::from("example.net"));
     }
 }