Added test case and setting Test configuration

qt6-after/qt6-migrated-legatus/Dockerfile.build

@@ -0,0 +1,34 @@
+#   docker build -f Dockerfile.build -t legatus-build:26.04 .
+FROM ubuntu:26.04
+
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN apt-get update -qq && apt-get install -y -qq --no-install-recommends \
+      build-essential \
+      cmake \
+      libkf6texttemplate-dev \
+      libqt6core6 \
+      libqt6gui6 \
+      libqt6widgets6 \
+      qt6-base-dev \
+      qt6-tools-dev-tools \
+      qt6-tools-dev \
+      qt6-l10n-tools \
+      libgtest-dev \
+      git \
+      file \
+      binutils \
+      gdb \
+      less \
+    && rm -rf /var/lib/apt/lists/*
+
+ENV QT_QPA_PLATFORM=offscreen
+
+ENV RTI_LICENSE_FILE=/workspace/rti_license.dat \
+    DDS_PATH=/opt/rti_connext_dds-7.7.0 \
+    NDDSHOME=/opt/rti_connext_dds-7.7.0 \
+    CMAKE_PREFIX_PATH=/opt/Qt/6.10.2/gcc_64 \
+    LD_LIBRARY_PATH=/workspace/qt6-after/qt6-migrated-legatus/build4/lib:/opt/rti_connext_dds-7.7.0/lib/x64Linux4gcc8.5.0
+
+WORKDIR /workspace/qt6-after/qt6-migrated-legatus
+CMD ["bash"]