- Added unit tests

- Updated `.gitignore`

.gitignore

@@ -23,3 +23,4 @@ docs/
 # Code coverage
 *.lst
 dub.selections.json
+bformat-test-library

source/bformat/marshall.d

@@ -88,4 +88,20 @@ public byte[] encodeBformat(byte[] message)
 	messageBuffer ~= cast(byte[])message;
 
 	return messageBuffer;
+}
+
+version(unittest)
+{
+    import std.string : cmp;
+}
+
+unittest
+{
+    string message = "This is my message";
+    byte[] bformatEncoded = encodeBformat(cast(byte[])message);
+
+    byte[] decodedMessageBytes = decodeMessage(bformatEncoded);
+    string decodedMessage = cast(string)decodedMessageBytes;
+
+    assert(cmp(message, decodedMessage) == 0);
 }