Added a very basic test run

src/lib.rs

@@ -1,3 +1,5 @@
+//! A logger that prints all messages with a readable output format.
+
 extern crate log;
 extern crate time;
 

tests/lib.rs

@@ -0,0 +1,9 @@
+#[macro_use]
+extern crate log;
+extern crate simple_logger;
+
+#[test]
+fn log_message() {
+    simple_logger::init();
+    warn!("This is an example message.");
+}