separate unittest folder

unittests/serialize/TestSerialLinkedPacket.h

@@ -0,0 +1,50 @@
+#ifndef UNITTEST_HOSTED_TESTSERIALLINKEDPACKET_H_
+#define UNITTEST_HOSTED_TESTSERIALLINKEDPACKET_H_
+
+#include <fsfw/objectmanager/SystemObjectIF.h>
+#include <fsfw/parameters/HasParametersIF.h>
+#include <fsfw/serialize/SerialBufferAdapter.h>
+#include <fsfw/serialize/SerialLinkedListAdapter.h>
+
+#include <cstdint>
+
+class TestPacket : public SerialLinkedListAdapter<SerializeIF> {
+ public:
+  /**
+   * For Deserialization
+   */
+  TestPacket(const uint8_t* somePacket, size_t size, uint8_t* storePointer, size_t storeSize)
+      : buffer(storePointer, storeSize) {
+    setLinks();
+  }
+
+  /**
+   * For Serialization
+   */
+  TestPacket(uint32_t header, uint32_t tail, const uint8_t* parameters, size_t paramSize)
+      : header(header), buffer(parameters, paramSize), tail(tail) {
+    setLinks();
+  }
+
+  uint32_t getHeader() const { return header.entry; }
+
+  const uint8_t* getBuffer() { return buffer.entry.getConstBuffer(); }
+
+  size_t getBufferLength() { return buffer.getSerializedSize(); }
+
+  uint16_t getTail() const { return tail.entry; }
+
+ private:
+  void setLinks() {
+    setStart(&header);
+    header.setNext(&buffer);
+    buffer.setNext(&tail);
+    tail.setEnd();
+  }
+
+  SerializeElement<uint32_t> header = 0;
+  SerializeElement<SerialBufferAdapter<uint8_t>> buffer;
+  SerializeElement<uint32_t> tail = 0;
+};
+
+#endif /* UNITTEST_TESTFW_NEWTESTS_TESTTEMPLATE_H_ */