Added HTTP Authentication for Client (#540)

tests/test_client.rs

@@ -506,3 +506,31 @@ fn client_read_until_eof() {
     let bytes = sys.block_on(response.body()).unwrap();
     assert_eq!(bytes, Bytes::from_static(b"welcome!"));
 }
+
+#[test]
+fn client_basic_auth() {
+    let mut srv =
+        test::TestServer::new(|app| app.handler(|_| HttpResponse::Ok().body(STR)));
+    /// set authorization header to Basic <base64 encoded username:password>
+    let request = srv
+                    .get()
+                    .basic_auth("username", Some("password"))
+                    .finish()
+                    .unwrap();
+    let repr = format!("{:?}", request);
+    assert!(repr.contains("Basic dXNlcm5hbWU6cGFzc3dvcmQ="));
+}
+
+#[test]
+fn client_bearer_auth() {
+    let mut srv =
+        test::TestServer::new(|app| app.handler(|_| HttpResponse::Ok().body(STR)));
+    /// set authorization header to Bearer <token>
+    let request = srv
+                    .get()
+                    .bearer_auth("someS3cr3tAutht0k3n")
+                    .finish()
+                    .unwrap();
+    let repr = format!("{:?}", request);
+    assert!(repr.contains("Bearer someS3cr3tAutht0k3n"));
+}