Add test to covert #87

Author: huacnlee

crates/support/src/backend.rs

@@ -74,10 +74,7 @@ impl SimpleBackend {
             .map(|(k, v)| ((*k).into(), (*v).into()))
             .collect::<HashMap<_, _>>();
 
-        let trs = self
-            .translations
-            .entry(locale.into())
-            .or_insert(HashMap::new());
+        let trs = self.translations.entry(locale.into()).or_default();
         trs.extend(data);
     }
 }

tests/integration_tests.rs

@@ -33,6 +33,8 @@ rust_i18n::i18n!(
 
 #[cfg(test)]
 mod tests {
+    use std::{thread, time::Duration};
+
     use rust_i18n::t;
     use rust_i18n_support::load_locales;
 
@@ -315,4 +317,12 @@ mod tests {
             "This is missing key fallbacked to en."
         );
     }
+
+    #[test]
+    fn test_set_locale() {
+        rust_i18n::set_locale("zh-CN");
+        for _ in 0..5 {
+            assert_eq!(t!("hello"), "Bar - 你好世界！");
+        }
+    }
 }