diff --git a/ntex-util/src/time/mod.rs b/ntex-util/src/time/mod.rs
index 8356397a..a33ab6f1 100644
--- a/ntex-util/src/time/mod.rs
+++ b/ntex-util/src/time/mod.rs
@@ -454,6 +454,13 @@ mod tests {
         dl.reset(Millis::ZERO);
         assert!(lazy(|cx| dl.poll_elapsed(cx)).await.is_pending());
 
+        let mut dl = deadline(Millis(1));
+        dl.reset(Millis(100));
+        let first_time = now();
+        dl.await;
+        let second_time = now();
+        assert!(second_time - first_time >= time::Duration::from_millis(100));
+
         let mut dl = deadline(Millis(0));
         assert!(dl.is_elapsed());
         dl.reset(Millis(1));
diff --git a/ntex/src/web/middleware/compress.rs b/ntex/src/web/middleware/compress.rs
index 0072021f..2bf38126 100644
--- a/ntex/src/web/middleware/compress.rs
+++ b/ntex/src/web/middleware/compress.rs
@@ -163,3 +163,74 @@ impl AcceptEncoding {
         ContentEncoding::Identity
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use std::cmp::Ordering;
+
+    use super::*;
+
+    #[test]
+    fn test_accepting_encodings_equal() {
+        let accepting_encoding = AcceptEncoding {
+            encoding: ContentEncoding::Auto,
+            quality: 0.0,
+        };
+        let accepting_encoding2 = AcceptEncoding {
+            encoding: ContentEncoding::Br,
+            quality: 0.0,
+        };
+
+        assert!(accepting_encoding == accepting_encoding2);
+    }
+
+    #[test]
+    fn test_accepting_encodings_not_equal() {
+        let accepting_encoding = AcceptEncoding {
+            encoding: ContentEncoding::Auto,
+            quality: 1.0,
+        };
+        let accepting_encoding2 = AcceptEncoding {
+            encoding: ContentEncoding::Br,
+            quality: 0.0,
+        };
+
+        assert!(accepting_encoding != accepting_encoding2);
+    }
+
+    #[test]
+    fn test_accepting_encodings_cmp_order_less() {
+        let accepting_encoding = AcceptEncoding {
+            encoding: ContentEncoding::Auto,
+            quality: 1.0,
+        };
+        let accepting_encoding2 = AcceptEncoding {
+            encoding: ContentEncoding::Br,
+            quality: 0.0,
+        };
+
+        assert_eq!(accepting_encoding.cmp(&accepting_encoding2), Ordering::Less);
+    }
+
+    #[test]
+    fn test_accepting_encodings_cmp_order_equal() {
+        let accepting_encoding = AcceptEncoding {
+            encoding: ContentEncoding::Auto,
+            quality: 1.0,
+        };
+
+        assert_eq!(accepting_encoding.cmp(&accepting_encoding), Ordering::Equal);
+    }
+
+    #[test]
+    fn test_accepting_encoding_from_tag_with_valid_quality() {
+        let accepting_encoding = AcceptEncoding::new("gzip;0.8").unwrap();
+        assert_eq!(accepting_encoding.quality, 0.8);
+    }
+
+    #[test]
+    fn test_accepting_encoding_from_tag_with_invalid_quality() {
+        let accepting_encoding = AcceptEncoding::new("gzip;q=abc").unwrap();
+        assert_eq!(accepting_encoding.quality, 0.0);
+    }
+}
diff --git a/ntex/src/web/middleware/defaultheaders.rs b/ntex/src/web/middleware/defaultheaders.rs
index 2e9d9ae9..54b96605 100644
--- a/ntex/src/web/middleware/defaultheaders.rs
+++ b/ntex/src/web/middleware/defaultheaders.rs
@@ -175,6 +175,18 @@ mod tests {
         assert_eq!(resp.headers().get(CONTENT_TYPE).unwrap(), "0002");
     }
 
+    #[crate::rt_test]
+    #[should_panic(expected = "Cannot create header name")]
+    async fn test_invalid_header_name() {
+        DefaultHeaders::new().header("no existing header name", "0001");
+    }
+
+    #[crate::rt_test]
+    #[should_panic(expected = "Cannot create header value")]
+    async fn test_invalid_header_value() {
+        DefaultHeaders::new().header(CONTENT_TYPE, "\n");
+    }
+
     #[crate::rt_test]
     async fn test_content_type() {
         let srv = |req: WebRequest<DefaultError>| async move {