add unit test

crates/next-core/src/next_manifests/mod.rs

@@ -308,3 +308,39 @@ pub struct ClientBuildManifest<'a> {
     #[serde(flatten)]
     pub pages: HashMap<RcStr, Vec<&'a str>>,
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_middleware_matcher_serialization() {
+        let matchers = vec![
+            MiddlewareMatcher {
+                regexp: None,
+                locale: false,
+                has: None,
+                missing: None,
+                original_source: "".into(),
+            },
+            MiddlewareMatcher {
+                regexp: Some(".*".into()),
+                locale: true,
+                has: Some(vec![RouteHas::Query {
+                    key: "foo".into(),
+                    value: None,
+                }]),
+                missing: Some(vec![RouteHas::Query {
+                    key: "bar".into(),
+                    value: Some("value".into()),
+                }]),
+                original_source: "source".into(),
+            },
+        ];
+
+        let serialized = serde_json::to_string(&matchers).unwrap();
+        let deserialized: Vec<MiddlewareMatcher> = serde_json::from_str(&serialized).unwrap();
+
+        assert_eq!(matchers, deserialized);
+    }
+}