test(lib): fix unused warnings in doc tests

2017-02-01 15:47:43 -08:00
parent 352b31f67d
commit b4e0057d2b
2 changed files with 9 additions and 7 deletions
--- a/src/header/mod.rs
+++ b/src/header/mod.rs
@@ -399,7 +399,8 @@ impl Headers {
    /// # use hyper::header::Headers;
    /// # use hyper::header::ContentType;
    /// # let mut headers = Headers::new();
-    /// let has_type = headers.has::<ContentType>();
+    /// headers.set(ContentType::json());
+    /// assert!(headers.has::<ContentType>());
    /// ```
    pub fn has<H: Header>(&self) -> bool {
        self.data.contains_key(&HeaderName(UniCase(Cow::Borrowed(header_name::<H>()))))