Extra metadata in HDF5 writer completed file stream

tests/HDF5WritingTest.cpp

@@ -226,7 +226,11 @@ TEST_CASE("HDF5Writer_Socket", "[HDF5][Full]") {
         std::vector<SpotToSave> spots;
 
         x.FilePrefix("test05").ImagesPerTrigger(5).ImagesPerFile(2).Compression(CompressionAlgorithm::NO_COMPRESSION)
-                .HeaderAppendix("{\"z\":567}");
+                .HeaderAppendix("{\"z\":567}").DetectorDistance_mm(155).BeamX_pxl(1606.62).BeamY_pxl(1669.59)
+                .FrameTime(std::chrono::microseconds(1000), std::chrono::microseconds(100))
+                .PhotonEnergy_keV(12.07).SetUnitCell(UnitCell{.a = 97, .b = 97, .c = 38, .alpha= 90, .beta = 90, .gamma = 90})
+                .SpaceGroupNumber(96);
+
         StartMessage start_message;
         x.FillMessage(start_message);
 
@@ -259,11 +263,15 @@ TEST_CASE("HDF5Writer_Socket", "[HDF5][Full]") {
         nlohmann::json j;
 
         REQUIRE(s.Receive(msg, true));
+
         j = nlohmann::json::parse(std::string((char *) msg.data(), msg.size()));
         REQUIRE(j["filename"] == "test05_data_000001.h5");
         REQUIRE(j["nimages"] == 2);
+        REQUIRE(j["photon_energy_eV"] == Catch::Approx(x.GetPhotonEnergy_keV() * 1000.0));
+        REQUIRE(j["space_group_number"] == 96);
         REQUIRE(j.contains("user_data"));
         REQUIRE(j["user_data"]["z"] == 567);
+        std::cout << j.dump(4) << std::endl;
 
         REQUIRE(s.Receive(msg, true));
         j = nlohmann::json::parse(std::string((char *) msg.data(), msg.size()));