diff --git a/awc/src/request.rs b/awc/src/request.rs
index 1daaa28cb..c97e08f81 100644
--- a/awc/src/request.rs
+++ b/awc/src/request.rs
@@ -544,6 +544,8 @@ impl fmt::Debug for ClientRequest {
 
 #[cfg(test)]
 mod tests {
+    use std::time::SystemTime;
+
     use super::*;
     use crate::Client;
 
@@ -555,6 +557,21 @@ mod tests {
         assert!(repr.contains("x-test"));
     }
 
+    #[test]
+    fn test_basics() {
+        let mut req = Client::new()
+            .put("/")
+            .version(Version::HTTP_2)
+            .set(header::Date(SystemTime::now().into()))
+            .content_type("plain/text")
+            .content_length(100);
+        assert!(req.headers().contains_key(header::CONTENT_TYPE));
+        assert!(req.headers().contains_key(header::DATE));
+        assert_eq!(req.head.version, Version::HTTP_2);
+        let _ = req.headers_mut();
+        let _ = req.send_body("");
+    }
+
     #[test]
     fn test_client_header() {
         let req = Client::build()
diff --git a/awc/src/test.rs b/awc/src/test.rs
index fbbadef3a..8df21e8f9 100644
--- a/awc/src/test.rs
+++ b/awc/src/test.rs
@@ -134,3 +134,23 @@ impl TestResponse {
         }
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use std::time::SystemTime;
+
+    use super::*;
+    use crate::{cookie, http::header};
+
+    #[test]
+    fn test_basics() {
+        let res = TestResponse::default()
+            .version(Version::HTTP_2)
+            .set(header::Date(SystemTime::now().into()))
+            .cookie(cookie::Cookie::build("name", "value").finish())
+            .finish();
+        assert!(res.headers().contains_key(header::SET_COOKIE));
+        assert!(res.headers().contains_key(header::DATE));
+        assert_eq!(res.version(), Version::HTTP_2);
+    }
+}
diff --git a/awc/src/ws.rs b/awc/src/ws.rs
index 4f0983dc5..1ab6d563d 100644
--- a/awc/src/ws.rs
+++ b/awc/src/ws.rs
@@ -455,10 +455,20 @@ mod tests {
             .max_frame_size(100)
             .server_mode()
             .protocols(&["v1", "v2"])
+            .set_header_if_none(header::CONTENT_TYPE, "json")
+            .set_header_if_none(header::CONTENT_TYPE, "text")
             .cookie(Cookie::build("cookie1", "value1").finish());
-        assert_eq!(req.origin.unwrap().to_str().unwrap(), "test-origin");
+        assert_eq!(
+            req.origin.as_ref().unwrap().to_str().unwrap(),
+            "test-origin"
+        );
         assert_eq!(req.max_size, 100);
         assert_eq!(req.server_mode, true);
         assert_eq!(req.protocols, Some("v1,v2".to_string()));
+        assert_eq!(
+            req.head.headers.get(header::CONTENT_TYPE).unwrap(),
+            header::HeaderValue::from_static("json")
+        );
+        let _ = req.connect();
     }
 }
diff --git a/src/middleware/cors.rs b/src/middleware/cors.rs
index 1fa6e6690..813822c98 100644
--- a/src/middleware/cors.rs
+++ b/src/middleware/cors.rs
@@ -852,6 +852,17 @@ mod tests {
         assert_eq!(resp.status(), StatusCode::OK);
     }
 
+    #[test]
+    fn default() {
+        let mut cors =
+            block_on(Cors::default().new_transform(test::ok_service())).unwrap();
+        let req = TestRequest::with_header("Origin", "https://www.example.com")
+            .to_srv_request();
+
+        let resp = test::call_success(&mut cors, req);
+        assert_eq!(resp.status(), StatusCode::OK);
+    }
+
     #[test]
     fn test_preflight() {
         let mut cors = Cors::new()