use requirements_tests

Author: knaaptime

.devcontainer/Dockerfile

@@ -3,7 +3,10 @@ FROM mcr.microsoft.com/devcontainers/miniconda:0-3
 # Copy environment.yml (if found) to a temp location so we update the environment. Also
 # copy "noop.txt" so the COPY instruction does not fail if no environment.yml exists.
 COPY environment.yml* .devcontainer/noop.txt /tmp/conda-tmp/
-RUN if [ -f "/tmp/conda-tmp/environment.yml" ]; then umask 0002 && /opt/conda/bin/conda install -n base -c conda-forge mamba -y && /opt/conda/bin/mamba env update -n base -f /tmp/conda-tmp/environment.yml && /opt/conda/bin/mamba install -n base -c conda-forge ipywidgets watermark quilt3 -y; fi \
+COPY requirements_tests.txt* /tmp/conda-tmp/
+RUN if [ -f "/tmp/conda-tmp/environment.yml" ]; then umask 0002 && /opt/conda/bin/conda install -n base -c conda-forge mamba -y && \
+    /opt/conda/bin/mamba env update -n base -f /tmp/conda-tmp/environment.yml && \
+    /opt/conda/bin/mamba install -c conda-forge -n base --file /tmp/conda-tmp/requirements_tests.txt -y ; fi \
     && rm -rf /tmp/conda-tmp
 
 # [Optional] Uncomment to install a different version of Python than the default