diff --git a/src/lib.rs b/src/lib.rs
index 2e79944..130e1a3 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -16,3 +16,65 @@
  */
 
 pub mod minio;
+
+#[cfg(test)]
+mod tests {
+    use futures::{future::Future, stream::Stream};
+    use hyper::rt;
+    use log::debug;
+
+    use minio::BucketInfo;
+
+    use super::*;
+
+    fn get_local_default_server() -> minio::Client {
+        match minio::Client::new("http://localhost:9000") {
+            Ok(mut c) => {
+                c.set_credentials(minio::Credentials::new("minio", "minio123"));
+                c
+            }
+            Err(_) => panic!("could not make local client"),
+        }
+    }
+
+    #[test]
+    fn test_lib_functions() {
+        rt::run(rt::lazy(|| {
+            let c = minio::Client::get_play_client();
+            let bucket = "aaaa";
+
+            c.put_object_req(bucket, "hhhhhhhhhh", vec![], "object content".as_bytes().to_vec())
+            .and_then(|g| {
+                debug!("object: {} {} {:?}", g.object_size, g.etag, g.content_type);
+                g.get_object_stream().concat2()
+            })
+            .map(|c| debug!("get obj res: {:?}", c))
+            .map_err(|c| debug!("err res: {:?}", c))
+            .map(|_| {})
+        }));
+
+        rt::run(rt::lazy(|| {
+            let c = minio::Client::get_play_client();
+            let bucket = "aaaa";
+
+            c.get_object_req(bucket, "hhhhhhhhhh", vec![])
+            .and_then(|g| {
+                debug!("object: {} {} {:?}", g.object_size, g.etag, g.content_type);
+                g.get_object_stream().concat2()
+            })
+            .map(|c| debug!("get obj res: {:?}", c))
+            .map_err(|c| debug!("err res: {:?}", c))
+            .map(|_| {})
+        }));
+
+        rt::run(rt::lazy(|| {
+            let c = minio::Client::get_play_client();
+            let bucket = "aaaa";
+
+            c.delete_bucket(bucket)
+            .map(|_| debug!("Deleted!"))
+            .map_err(|err| debug!("del err: {:?}", err))
+            .map(|_| {})
+        }));
+    }
+}
diff --git a/src/main.rs b/src/main.rs
deleted file mode 100644
index 200a185..0000000
--- a/src/main.rs
+++ /dev/null
@@ -1,102 +0,0 @@
-/*
- * MinIO Rust Library for Amazon S3 Compatible Cloud Storage
- * Copyright 2019 MinIO, Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-use futures::{future::Future, stream::Stream};
-use hyper::rt;
-
-use minio::BucketInfo;
-
-mod minio;
-
-fn get_local_default_server() -> minio::Client {
-    match minio::Client::new("http://localhost:9000") {
-        Ok(mut c) => {
-            c.set_credentials(minio::Credentials::new("minio", "minio123"));
-            c
-        }
-        Err(_) => panic!("could not make local client"),
-    }
-}
-
-fn main() {
-    rt::run(rt::lazy(|| {
-        // let c = get_local_default_server();
-        let c = minio::Client::get_play_client();
-        let bucket = "000";
-
-        let region_req = c
-            .get_bucket_location(bucket)
-            .map(|res| println!("{}", res.to_string()))
-            .map_err(|err| println!("{:?}", err));
-
-        let del_req = c
-            .delete_bucket(bucket)
-            .map(|_| println!("Deleted!"))
-            .map_err(|err| println!("del err: {:?}", err));
-
-        let buc_exists_req = c
-            .bucket_exists(bucket)
-            .map(move |e| println!("Bucket {} exists: {}", bucket, e))
-            .map_err(|err| println!("exists err: {:?}", err));
-
-        let make_bucket_req = c
-            .make_bucket(bucket)
-            .map(move |_| println!("Bucket {} created", bucket))
-            .map_err(move |err| println!("Bucket create for {} failed with {:?}", bucket, err));
-
-        let download_req = c
-            .get_object_req(bucket, "issue", vec![])
-            .and_then(|g| {
-                println!("issue: {} {} {:?}", g.object_size, g.etag, g.content_type);
-                g.get_object_stream().concat2()
-            })
-            .map(|c| println!("get obj res: {:?}", c))
-            .map_err(|c| println!("err res: {:?}", c));
-
-        let upload_req = c
-            .put_object_req(bucket, "issue", vec![], "object content".as_bytes().to_vec())
-            .and_then(|g| {
-                println!("issue: {} {} {:?}", g.object_size, g.etag, g.content_type);
-                g.get_object_stream().concat2()
-            })
-            .map(|c| println!("get obj res: {:?}", c))
-            .map_err(|c| println!("err res: {:?}", c));
-
-        let list_buckets_req = c
-            .list_buckets()
-            .map(|buckets| {
-                println!(
-                    "{:?}",
-                    buckets
-                        .iter()
-                        .map(|bucket: &BucketInfo| bucket.name.clone())
-                        .collect::<Vec<String>>()
-                )
-            })
-            .map_err(|err| println!("{:?}", err));
-
-        let list_objects_req = c
-            .list_objects(bucket, None, None, None, None)
-            .map(|l_obj_resp| println!("{:?} {:?}", l_obj_resp, l_obj_resp.object_infos.len()))
-            .map_err(|err| println!("{:?}", err));
-
-        del_req
-            .join5(make_bucket_req, region_req, buc_exists_req, download_req)
-            .map(|_| ())
-            .and_then(|_| list_buckets_req)
-            .then(|_| list_objects_req)
-    }));
-}
diff --git a/src/minio.rs b/src/minio.rs
index 16a97d5..f312778 100644
--- a/src/minio.rs
+++ b/src/minio.rs
@@ -183,7 +183,7 @@ impl Client {
                 api::mk_request(s3_req, &server_addr, &sign_hdrs)
             })
             .and_then(move |req| {
-                println!("{:?}", req);
+                debug!("{:?}", req);
                 conn_client.make_req(req).map_err(|e| Err::HyperErr(e))
             })
             .and_then(|resp| {