feat: truncate poll when too long

src/twitter.rs

@@ -464,7 +464,11 @@ pub fn transform_poll(p: &Poll) -> TweetPoll {
     let diff = poll_end_datetime.signed_duration_since(now);
 
     TweetPoll {
-        options: p.options.iter().map(|i| i.title.clone()).collect(),
+        options: p
+            .options
+            .iter()
+            .map(|i| i.title.chars().take(25).collect::<String>())
+            .collect(),
         duration_minutes: diff.num_minutes().try_into().unwrap(), // safe here, number is positive
                                                                   // and can’t be over 21600
     }
@@ -512,3 +516,41 @@ pub async fn post_tweet(
 
     Ok(res.data.id.parse::<u64>().unwrap())
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use megalodon::entities::PollOption;
+
+    #[test]
+    fn test_transform_poll() {
+        let poll = Poll {
+            id: "youpi".to_string(),
+            expires_at: Some(Utc::now()),
+            expired: false,
+            multiple: false,
+            votes_count: 0,
+            voters_count: None,
+            options: vec![
+                PollOption {
+                    title: "Je suis beaucoup trop long comme option, tronque-moi !".to_string(),
+                    votes_count: None,
+                },
+                PollOption {
+                    title: "nope".to_string(),
+                    votes_count: None,
+                },
+            ],
+            voted: None,
+            emojis: vec![],
+        };
+
+        let tweet_poll_res = transform_poll(&poll);
+        let tweet_pool_expected = TweetPoll {
+            duration_minutes: 0,
+            options: vec!["Je suis beaucoup trop lon".to_string(), "nope".to_string()],
+        };
+
+        assert_eq!(tweet_poll_res.options, tweet_pool_expected.options);
+    }
+}