From fdc76eca3cc5ecc9079754dc933b3d15b293d9cc Mon Sep 17 00:00:00 2001
From: Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
Date: Wed, 19 Apr 2017 18:59:07 +0100
Subject: [PATCH] Add a ping parser.

---
 src/lib.rs  |  1 +
 src/ns.rs   |  1 +
 src/ping.rs | 53 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 55 insertions(+)
 create mode 100644 src/ping.rs

diff --git a/src/lib.rs b/src/lib.rs
index 56d17f47..d8a3f8cc 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -8,3 +8,4 @@ pub mod data_forms;
 pub mod media_element;
 pub mod ecaps2;
 pub mod jingle;
+pub mod ping;
diff --git a/src/ns.rs b/src/ns.rs
index 55da2eb8..7c0903aa 100644
--- a/src/ns.rs
+++ b/src/ns.rs
@@ -2,3 +2,4 @@ pub const DISCO_INFO_NS: &'static str = "http://jabber.org/protocol/disco#info";
 pub const DATA_FORMS_NS: &'static str = "jabber:x:data";
 pub const MEDIA_ELEMENT_NS: &'static str = "urn:xmpp:media-element";
 pub const JINGLE_NS: &'static str = "urn:xmpp:jingle:1";
+pub const PING_NS: &'static str = "urn:xmpp:ping";
diff --git a/src/ping.rs b/src/ping.rs
new file mode 100644
index 00000000..7176fa42
--- /dev/null
+++ b/src/ping.rs
@@ -0,0 +1,53 @@
+use minidom::Element;
+
+use error::Error;
+
+use ns::PING_NS;
+
+#[derive(Debug)]
+pub struct Ping {
+}
+
+pub fn parse_ping(root: &Element) -> Result<Ping, Error> {
+    assert!(root.is("ping", PING_NS));
+    for _ in root.children() {
+        return Err(Error::ParseError("Unknown child in ping element."));
+    }
+    Ok(Ping {  })
+}
+
+#[cfg(test)]
+mod tests {
+    use minidom::Element;
+    use error::Error;
+    use ping;
+
+    #[test]
+    fn test_simple() {
+        let elem: Element = "<ping xmlns='urn:xmpp:ping'/>".parse().unwrap();
+        ping::parse_ping(&elem).unwrap();
+    }
+
+    #[test]
+    fn test_invalid() {
+        let elem: Element = "<ping xmlns='urn:xmpp:ping'><coucou/></ping>".parse().unwrap();
+        let error = ping::parse_ping(&elem).unwrap_err();
+        let message = match error {
+            Error::ParseError(string) => string,
+            _ => panic!(),
+        };
+        assert_eq!(message, "Unknown child in ping element.");
+    }
+
+    #[test]
+    #[ignore]
+    fn test_invalid_attribute() {
+        let elem: Element = "<ping xmlns='urn:xmpp:ping' coucou=''/>".parse().unwrap();
+        let error = ping::parse_ping(&elem).unwrap_err();
+        let message = match error {
+            Error::ParseError(string) => string,
+            _ => panic!(),
+        };
+        assert_eq!(message, "Unknown attribute in ping element.");
+    }
+}