added basic unittests for hdlc encoder

unittest/CMakeLists.txt

@@ -4,5 +4,6 @@ add_subdirectory(mocks)
 target_sources(${UNITTEST_NAME} PRIVATE
     main.cpp
     testEnvironment.cpp
+    hdlcEncodingRw.cpp
     printChar.cpp
 )

unittest/hdlcEncodingRw.cpp

@@ -0,0 +1,38 @@
+
+
+#include <catch2/catch_test_macros.hpp>
+
+#include "mission/devices/devicedefinitions/rwHelpers.h"
+
+TEST_CASE("HDLC Encoding RW", "[acs]") {
+  std::array<uint8_t, 256> encodedBuffer{};
+  size_t encodedLen = 0;
+  SECTION("Basic No Escaped Bytes") {
+    std::array<uint8_t, 4> dummyNoEscaped = {1, 2, 3, 4};
+
+    rws::encodeHdlc(dummyNoEscaped.data(), dummyNoEscaped.size(), encodedBuffer.data(), encodedLen);
+    REQUIRE(encodedLen == 6);
+    REQUIRE(encodedBuffer[0] == rws::FRAME_DELIMITER);
+    REQUIRE(encodedBuffer[1] == 1);
+    REQUIRE(encodedBuffer[2] == 2);
+    REQUIRE(encodedBuffer[3] == 3);
+    REQUIRE(encodedBuffer[4] == 4);
+    REQUIRE(encodedBuffer[5] == rws::FRAME_DELIMITER);
+  }
+
+  SECTION("Basic Some Escaped Bytes") {
+    std::array<uint8_t, 4> dummySomeEscaped = {1, 0x7D, 0x7E, 4};
+
+    rws::encodeHdlc(dummySomeEscaped.data(), dummySomeEscaped.size(), encodedBuffer.data(),
+                    encodedLen);
+    REQUIRE(encodedLen == 8);
+    REQUIRE(encodedBuffer[0] == rws::FRAME_DELIMITER);
+    REQUIRE(encodedBuffer[1] == 1);
+    REQUIRE(encodedBuffer[2] == 0x7D);
+    REQUIRE(encodedBuffer[3] == 0x5D);
+    REQUIRE(encodedBuffer[4] == 0x7D);
+    REQUIRE(encodedBuffer[5] == 0x5E);
+    REQUIRE(encodedBuffer[6] == 4);
+    REQUIRE(encodedBuffer[7] == rws::FRAME_DELIMITER);
+  }
+}