♻️ Simplify tests, run in same backend service (#152)

remove backend-tests

{{cookiecutter.project_slug}}/backend/app/tests-start.sh

@@ -3,4 +3,4 @@ set -e
 
 python /app/app/tests_pre_start.py
 
-pytest $* /app/app/tests/
+pytest "$@" /app/app/tests/

{{cookiecutter.project_slug}}/backend/tests.dockerfile

@@ -1,34 +0,0 @@
-FROM python:3.7
-
-WORKDIR /app/
-
-# Install Poetry
-RUN curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | POETRY_HOME=/opt/poetry python && \
-    cd /usr/local/bin && \
-    ln -s /opt/poetry/bin/poetry && \
-    poetry config virtualenvs.create false
-
-# Copy poetry.lock* in case it doesn't exist in the repo
-COPY ./app/pyproject.toml ./app/poetry.lock* /app/
-RUN poetry install --no-dev --no-root
-
-# For development, Jupyter remote kernel, Hydrogen
-# Using inside the container:
-# jupyter lab --ip=0.0.0.0 --allow-root --NotebookApp.custom_display_url=http://127.0.0.1:8888
-ARG env=prod
-RUN bash -c "if [ $env == 'dev' ] ; then pip install jupyterlab ; fi"
-EXPOSE 8888
-
-COPY ./app /app
-
-ENV PYTHONPATH=/app
-
-COPY ./app/tests-start.sh /tests-start.sh
-
-RUN chmod +x /tests-start.sh
-
-# This will make the container wait, doing nothing, but alive
-CMD ["bash", "-c", "while true; do sleep 1; done"]
-
-# Afterwards you can exec a command /tests-start.sh in the live container, like:
-# docker exec -it backend-tests /tests-start.sh