RUST-647 Sync spec tests for invalid relaxed UUIDs (#228)

Author: isabelatkinson

src/extjson/models.rs

@@ -173,42 +173,21 @@ pub(crate) struct Uuid {
 }
 
 impl Uuid {
-    pub(crate) fn parse(mut self) -> extjson::de::Result<crate::Binary> {
-        if !valid_uuid_format(&self.value) {
-            return Err(extjson::de::Error::invalid_value(
-                Unexpected::Str(&self.value),
-                &"$uuid values does not follow RFC 4122 format regarding length and hyphens",
-            ));
-        }
-
-        self.value.retain(|c| c != '-');
-
-        let bytes = hex::decode(&self.value).map_err(|_| {
+    pub(crate) fn parse(self) -> extjson::de::Result<crate::Binary> {
+        let uuid = uuid::Uuid::parse_str(&self.value).map_err(|_| {
             extjson::de::Error::invalid_value(
                 Unexpected::Str(&self.value),
-                &"$uuid does not follow RFC 4122 format regarding hex bytes",
+                &"$uuid value does not follow RFC 4122 format regarding length and hyphens",
             )
         })?;
 
         Ok(crate::Binary {
             subtype: BinarySubtype::Uuid,
-            bytes,
+            bytes: uuid.as_bytes().to_vec(),
         })
     }
 }
 
-fn valid_uuid_format(s: &str) -> bool {
-    // RFC 4122 defines the hyphens in a UUID as appearing in the 8th, 13th, 18th, and 23rd
-    // characters.
-    //
-    // See https://tools.ietf.org/html/rfc4122#section-3
-    s.chars().count() == 36
-        && s.chars().nth(8) == Some('-')
-        && s.chars().nth(13) == Some('-')
-        && s.chars().nth(18) == Some('-')
-        && s.chars().nth(23) == Some('-')
-}
-
 #[derive(Deserialize)]
 #[serde(deny_unknown_fields)]
 pub(crate) struct JavaScriptCodeWithScope {

src/tests/spec/json/bson-corpus/binary.json

@@ -94,8 +94,20 @@
             "string": "{\"x\" : { \"$uuid\" : { \"data\" : \"73ffd264-44b3-4c69-90e8-e7d1dfc035d4\"}}}"
         },
         {
-            "description": "$uuid invalid value",
+            "description": "$uuid invalid value--too short",
             "string": "{\"x\" : { \"$uuid\" : \"73ffd264-44b3-90e8-e7d1dfc035d4\"}}"
+        },
+        {
+            "description": "$uuid invalid value--too long",
+            "string": "{\"x\" : { \"$uuid\" : \"73ffd264-44b3-4c69-90e8-e7d1dfc035d4-789e4\"}}"
+        },
+        {
+            "description": "$uuid invalid value--misplaced hyphens",
+            "string": "{\"x\" : { \"$uuid\" : \"73ff-d26444b-34c6-990e8e-7d1dfc035d4\"}}"
+        },
+        {
+            "description": "$uuid invalid value--too many hyphens",
+            "string": "{\"x\" : { \"$uuid\" : \"----d264-44b3-4--9-90e8-e7d1dfc0----\"}}"
         }
     ]
 }