Bug 1569466 - Implement Deserialize for ErrorStatus. r=ato

Implement Deserialize for ErrorStatus

Differential Revision: https://phabricator.services.mozilla.com/D39632

--HG--
extra : moz-landing-system : lando

testing/webdriver/src/error.rs

@@ -1,5 +1,6 @@
 use base64::DecodeError;
 use http::StatusCode;
+use serde::de::{Deserialize, Deserializer};
 use serde::ser::{Serialize, Serializer};
 use serde_json;
 use std::borrow::Cow;
@@ -149,6 +150,16 @@ impl Serialize for ErrorStatus {
     }
 }
 
+impl<'de> Deserialize<'de> for ErrorStatus {
+    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
+    where
+        D: Deserializer<'de>,
+    {
+        let error_string = String::deserialize(deserializer)?;
+        Ok(ErrorStatus::from(error_string))
+    }
+}
+
 impl ErrorStatus {
     /// Returns the string serialisation of the error type.
     pub fn error_code(&self) -> &'static str {