diff --git a/test/elin/nrepl/connection_test.clj b/test/elin/nrepl/connection_test.clj
new file mode 100644
index 00000000..bc5771b2
--- /dev/null
+++ b/test/elin/nrepl/connection_test.clj
@@ -0,0 +1,37 @@
+(ns elin.nrepl.connection-test
+  (:require
+   [clojure.core.async :as async]
+   [clojure.test :as t]
+   [elin.nrepl.connection]
+   [elin.nrepl.message :as e.n.message]
+   [elin.protocol.nrepl :as e.p.nrepl]
+   [elin.test-helper :as h]))
+
+(t/use-fixtures :once h/malli-instrument-fixture)
+(t/use-fixtures :each h/test-nrepl-connection-fixture)
+
+(t/deftest connect-test
+  (let [conn h/*nrepl-connection*]
+    (t/is (false? (e.p.nrepl/disconnected? conn)))
+
+    (t/testing "request"
+      (let [resp (-> (e.p.nrepl/request conn {:op "describe"})
+                     (async/<!!)
+                     (e.n.message/merge-messages))]
+        (t/is (= #{:babashka :babashka.nrepl}
+                 (set (keys (:versions resp)))))))
+
+    (t/testing "notify and std out"
+      (let [resp (e.p.nrepl/notify conn {:op "eval" :code "(println \"hello\")"})]
+        (t/is (nil? resp))
+        (async/<!! (async/timeout 100))
+        (t/is (= {:type "out" :text "hello\n"}
+                 (async/<!! (:output-channel conn))))))
+
+    ;; TODO
+    (t/testing "pprint-out")
+    (t/testing "std err")
+
+    (t/testing "disconnect"
+      (t/is (true? (e.p.nrepl/disconnect conn)))
+      (t/is (true? (e.p.nrepl/disconnected? conn))))))