Rename the xmpp-parsers directory to parsers

This doesn’t change anything to the name of the crate, just makes
autocompletion easier by not sharing the same prefix as the xmpp crate.

parsers/src/jingle_ibb.rs

@@ -0,0 +1,113 @@
+// Copyright (c) 2017 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+use crate::ibb::{Stanza, StreamId};
+
+generate_element!(
+/// Describes an [In-Band Bytestream](https://xmpp.org/extensions/xep-0047.html)
+/// Jingle transport, see also the [IBB module](../ibb.rs).
+Transport, "transport", JINGLE_IBB,
+attributes: [
+    /// Maximum size in bytes for each chunk.
+    block_size: Required<u16> = "block-size",
+
+    /// The identifier to be used to create a stream.
+    sid: Required<StreamId> = "sid",
+
+    /// Which stanza type to use to exchange data.
+    stanza: Default<Stanza> = "stanza",
+]);
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use crate::util::error::Error;
+    use crate::Element;
+    use std::convert::TryFrom;
+
+    #[cfg(target_pointer_width = "32")]
+    #[test]
+    fn test_size() {
+        assert_size!(Transport, 16);
+    }
+
+    #[cfg(target_pointer_width = "64")]
+    #[test]
+    fn test_size() {
+        assert_size!(Transport, 32);
+    }
+
+    #[test]
+    fn test_simple() {
+        let elem: Element =
+            "<transport xmlns='urn:xmpp:jingle:transports:ibb:1' block-size='3' sid='coucou'/>"
+                .parse()
+                .unwrap();
+        let transport = Transport::try_from(elem).unwrap();
+        assert_eq!(transport.block_size, 3);
+        assert_eq!(transport.sid, StreamId(String::from("coucou")));
+        assert_eq!(transport.stanza, Stanza::Iq);
+    }
+
+    #[test]
+    fn test_invalid() {
+        let elem: Element = "<transport xmlns='urn:xmpp:jingle:transports:ibb:1'/>"
+            .parse()
+            .unwrap();
+        let error = Transport::try_from(elem).unwrap_err();
+        let message = match error {
+            Error::ParseError(string) => string,
+            _ => panic!(),
+        };
+        assert_eq!(message, "Required attribute 'block-size' missing.");
+
+        let elem: Element =
+            "<transport xmlns='urn:xmpp:jingle:transports:ibb:1' block-size='65536'/>"
+                .parse()
+                .unwrap();
+        let error = Transport::try_from(elem).unwrap_err();
+        let message = match error {
+            Error::ParseIntError(error) => error,
+            _ => panic!(),
+        };
+        assert_eq!(
+            message.to_string(),
+            "number too large to fit in target type"
+        );
+
+        let elem: Element = "<transport xmlns='urn:xmpp:jingle:transports:ibb:1' block-size='-5'/>"
+            .parse()
+            .unwrap();
+        let error = Transport::try_from(elem).unwrap_err();
+        let message = match error {
+            Error::ParseIntError(error) => error,
+            _ => panic!(),
+        };
+        assert_eq!(message.to_string(), "invalid digit found in string");
+
+        let elem: Element =
+            "<transport xmlns='urn:xmpp:jingle:transports:ibb:1' block-size='128'/>"
+                .parse()
+                .unwrap();
+        let error = Transport::try_from(elem).unwrap_err();
+        let message = match error {
+            Error::ParseError(string) => string,
+            _ => panic!(),
+        };
+        assert_eq!(message, "Required attribute 'sid' missing.");
+    }
+
+    #[test]
+    fn test_invalid_stanza() {
+        let elem: Element = "<transport xmlns='urn:xmpp:jingle:transports:ibb:1' block-size='128' sid='coucou' stanza='fdsq'/>".parse().unwrap();
+        let error = Transport::try_from(elem).unwrap_err();
+        let message = match error {
+            Error::ParseError(string) => string,
+            _ => panic!(),
+        };
+        assert_eq!(message, "Unknown value for 'stanza' attribute.");
+    }
+}