diff --git a/src/webext.rs b/src/webext.rs
index 6287619..e1156cd 100644
--- a/src/webext.rs
+++ b/src/webext.rs
@@ -8,12 +8,13 @@ use std::path::PathBuf;
 use std::process;
 
 #[derive(Debug, Deserialize)]
-#[serde(tag = "type", content = "data")]
+#[serde(tag = "type")]
 enum InputMessage {
     Issue2Work(Issue2WorkWebExtMessage),
 }
 
 #[derive(Debug, Serialize)]
+#[serde(tag = "type")]
 enum OutputContent {
     Issue2Work(OutputIssue2Work),
 }
@@ -86,9 +87,9 @@ fn write_json_message<T: serde::Serialize>(
 /// "Logique métier" : construit une URL "created" à partir de l'entrée.
 async fn handle_business_logic(input: InputMessage) -> Result<OutputContent, GeneralError> {
     let mut default_config_path = PathBuf::new();
-    //default_config_path.push(simple_home_dir::home_dir().unwrap());
-    //default_config_path.push(".config/cl-cli/config.toml");
-    default_config_path.push("/tmp/cl-cli/config.toml");
+    default_config_path.push(simple_home_dir::home_dir().unwrap());
+    default_config_path.push(".config/cl-cli/config.toml");
+    // during dev: default_config_path.push("/tmp/cl-cli/config.toml");
     let config = match build_config(&default_config_path) {
         Ok(c) => c,
         Err(e) => {
@@ -161,3 +162,62 @@ async fn main() {
         }
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use serde_json::json;
+
+    #[test]
+    fn deserializes_issue2work_variant() {
+        // Given: a JSON with the external tag "type" matching the enum variant name
+        let payload = json!({
+                "type": "Issue2Work",
+                "url": "https://example.com/issues/123",
+                "project": "test"
+            });
+
+        // When: deserializing to InputMessage
+        let msg: InputMessage = serde_json::from_value(payload).expect("valid enum JSON");
+
+        // Then: we get the correct variant and fields
+        match msg {
+            InputMessage::Issue2Work(inner) => {
+                assert_eq!(inner.url, "https://example.com/issues/123");
+                assert_eq!(inner.project, "test");
+            }
+        }
+    }
+
+    #[test]
+    fn fails_on_unknown_type_tag() {
+        let payload = json!({
+                "type": "Unknown",
+                "url": "https://example.com/issues/123",
+                "project": "test"
+            });
+
+        let err = serde_json::from_value::<InputMessage>(payload).unwrap_err();
+        // Basic sanity check that it's a data error mentioning the unrecognized variant
+        let msg = err.to_string();
+        assert!(
+            msg.contains("unknown variant") || msg.contains("unknown") || msg.contains("expected"),
+            "unexpected error message: {msg}"
+        );
+    }
+
+    #[test]
+    fn fails_when_missing_required_fields() {
+        // Missing "url" and "project"
+        let payload = json!({
+                "type": "Issue2Work"
+            });
+
+        let err = serde_json::from_value::<InputMessage>(payload).unwrap_err();
+        let msg = err.to_string();
+        assert!(
+            msg.contains("missing field"),
+            "unexpected error message: {msg}"
+        );
+    }
+}