Fixing tests more.

docker/linux/Dockerfile

@@ -1,24 +1,24 @@
 FROM ubuntu:latest
 WORKDIR /workdir
 RUN apt-get update
-# RUN apt-get install -y \
+RUN apt-get install -y \
-#   build-essential \
+  build-essential \
-#   cmake \
+  cmake \
-#   python3 \
+  python3 \
-#   python3-pip \
+  python3-pip \
-#   python3-polib \
+  python3-polib \
-#   python3-pil \
+  python3-pil \
-#   libsdl2-dev \
+  libsdl2-dev \
-#   libgl1-mesa-dev \
+  libgl1-mesa-dev \
-#   libzip-dev \
+  libzip-dev \
-#   python3-dotenv \
+  python3-dotenv \
-#   python3-pyqt5 \
+  python3-pyqt5 \
-#   python3-opengl \
+  python3-opengl \
-#   liblua5.3-dev \
+  liblua5.3-dev \
-#   xz-utils \
+  xz-utils \
-#   libbz2-dev \
+  libbz2-dev \
-#   zlib1g-dev \
+  zlib1g-dev \
-#   libzip-dev \
+  libzip-dev \
-#   libbz2-dev \
+  libbz2-dev \
-#   git \
+  git \
-#   libssl-dev
+  libssl-dev