From 2a02694758cc0135c09564ffce65abe9c348f5ad Mon Sep 17 00:00:00 2001
From: bouzuya <m@bouzuya.net>
Date: Tue, 21 Feb 2023 23:44:34 +0900
Subject: [PATCH] twiq-light: Add test for tweet_length

---
 twiq-light/src/command/enqueue.rs | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/twiq-light/src/command/enqueue.rs b/twiq-light/src/command/enqueue.rs
index fafc33db..2c5173ef 100644
--- a/twiq-light/src/command/enqueue.rs
+++ b/twiq-light/src/command/enqueue.rs
@@ -17,3 +17,22 @@ pub async fn run(
     store.write_all(&queue).await?;
     Ok(())
 }
+
+#[cfg(test)]
+mod tests {
+    fn check(s: &str) -> bool {
+        if s.len() > 6 * 140 {
+            return false;
+        }
+        s.chars()
+            .map(|c| if c.is_ascii_alphanumeric() { 1 } else { 2 })
+            .sum::<usize>()
+            <= 280
+    }
+
+    #[test]
+    fn test() {
+        assert!(check("a".repeat(280).as_str()));
+        assert!(check("0".repeat(280).as_str()));
+    }
+}