initial commit

tests/iq_errors.rs

@@ -0,0 +1,35 @@
+use rust_xmpp::protocol;
+
+#[test]
+fn pep_errors_identify_the_account_and_echo_the_request() {
+    let doc = roxmltree::Document::parse("<iq id='bundle' type='get' to='alice@example.test'><pubsub xmlns='http://jabber.org/protocol/pubsub'><items node='eu.siacs.conversations.axolotl.bundles:123'/></pubsub></iq>").unwrap();
+    let reply = protocol::iq_error(doc.root_element(), "item-not-found");
+    let parsed = roxmltree::Document::parse(&reply).unwrap();
+    let iq = parsed.root_element();
+    assert_eq!(iq.attribute("from"), Some("alice@example.test"));
+    assert_eq!(iq.attribute("id"), Some("bundle"));
+    assert!(
+        iq.first_element_child()
+            .unwrap()
+            .has_tag_name(("http://jabber.org/protocol/pubsub", "pubsub"))
+    );
+    assert!(
+        iq.descendants()
+            .any(|n| n.has_tag_name(("urn:ietf:params:xml:ns:xmpp-stanzas", "item-not-found")))
+    );
+}
+
+#[test]
+fn server_errors_without_target_remain_unaddressed_and_escape_attributes() {
+    for target in ["", " to='alice&amp;bob@example.test'"] {
+        let request = format!("<iq id='a&amp;b' type='get'{target}><query xmlns='urn:test'/></iq>");
+        let doc = roxmltree::Document::parse(&request).unwrap();
+        let reply = protocol::iq_error(doc.root_element(), "service-unavailable");
+        let parsed = roxmltree::Document::parse(&reply).unwrap();
+        assert_eq!(
+            parsed.root_element().attribute("from"),
+            doc.root_element().attribute("to")
+        );
+        assert_eq!(parsed.root_element().attribute("id"), Some("a&b"));
+    }
+}