Prettify BATS output

Signed-off-by: yubiuser <github@yubiuser.dev>

.github/Dockerfile

@@ -13,6 +13,15 @@ ENV GIT_TAG=${GIT_TAG}
 ARG BUILD_OPTS=""
 ENV BUILD_OPTS=${BUILD_OPTS}
 
+# Add ncurses used for pretty output in bats tests
+RUN apk add --no-cache ncurses
+ENV TERM=xterm
+
+# Monkeypatch BATS to remove duplicate output of starting and finished test
+# BATS uses ANSI escape codes to overwrite the line after the test has finished
+# This is not supported by Github Actions as it does not provide a TTY to the docker build container
+RUN sed -i '/buffer_with_truncation /d' /bats-core/libexec/bats-core/bats-format-pretty
+
 # Build FTL
 # Remove possible old build files
 RUN rm -rf cmake && \