--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TestBitDecoder.cpp	Wed Sep 05 21:54:18 2012 +0200
@@ -0,0 +1,38 @@
+#include "BitDecoder.hpp"
+#include "TestFramework.hpp"
+
+#include "InvalidDataException.hpp"
+#include <QtCore/QDebug>
+
+QBitArray bitsFromString(const QString& str)
+{
+  QBitArray bits(str.size());
+  for (int i = 0; i < str.size(); ++i) {
+    if (str[i] == '1')
+      bits[i] = true;
+    else if (str[i] == '0')
+      bits[i] = false;
+    else
+      throw InvalidDataException();
+  }
+  return bits;
+}
+
+BOOST_AUTO_TEST_CASE( TestSimple )
+{
+  BitDecoder* up = new BitDecoder("a");
+  BitDecoder* down = new BitDecoder("b");
+
+  BitDecoder* full = BitDecoder::merge(down, up);
+
+  BOOST_REQUIRE(full->data().isNull());
+  BOOST_REQUIRE_EQUAL(up->data(), "a");
+  BOOST_REQUIRE_EQUAL(down->data(), "b");
+
+  BOOST_REQUIRE_EQUAL(full->decode(bitsFromString("1")), "a");
+  BOOST_REQUIRE_EQUAL(full->decode(bitsFromString("0")), "b");
+  BOOST_REQUIRE_EQUAL(full->decode(bitsFromString("1111")), "aaaa");
+  BOOST_REQUIRE_EQUAL(full->decode(bitsFromString("0000")), "bbbb");
+  BOOST_REQUIRE_EQUAL(full->decode(bitsFromString("1101")), "aaba");
+  BOOST_REQUIRE_EQUAL(full->decode(bitsFromString("1111")), "aaaa");
+}