compat mode that relaxes some of the check_* macros

src/muc/muc.rs

@@ -142,6 +142,7 @@ mod tests {
         assert_eq!(elem, elem2);
     }
 
+    #[cfg(not(feature = "compat"))]
     #[test]
     fn test_muc_invalid_attribute() {
         let elem: Element = "<x xmlns='http://jabber.org/protocol/muc' coucou=''/>"

src/muc/user.rs

@@ -303,6 +303,7 @@ mod tests {
         assert!(elem.compare_to(&elem2));
     }
 
+    #[cfg(not(feature = "compat"))]
     #[test]
     fn test_invalid_attribute() {
         let elem: Element = "
@@ -343,6 +344,7 @@ mod tests {
         assert_eq!(message, "Required attribute 'code' missing.");
     }
 
+    #[cfg(not(feature = "compat"))]
     #[test]
     fn test_status_invalid_child() {
         let elem: Element = "
@@ -513,6 +515,7 @@ mod tests {
         assert_eq!(reason.0, "Reason".to_owned());
     }
 
+    #[cfg(not(feature = "compat"))]
     #[test]
     fn test_reason_invalid_attribute() {
         let elem: Element = "
@@ -528,6 +531,7 @@ mod tests {
         assert_eq!(message, "Unknown attribute in reason element.".to_owned());
     }
 
+    #[cfg(not(feature = "compat"))]
     #[test]
     fn test_reason_invalid() {
         let elem: Element = "
@@ -545,6 +549,7 @@ mod tests {
         assert_eq!(message, "Unknown child in reason element.".to_owned());
     }
 
+    #[cfg(not(feature = "compat"))]
     #[test]
     fn test_item_invalid_attr() {
         let elem: Element = "