make sure test container has at least one locale with comma as decimal separator

diff --git a/tests/ci/setup/install_packages.sh b/tests/ci/setup/install_packages.sh
index e9f3e9c..2e465da 100755 (executable)
--- a/tests/ci/setup/install_packages.sh
+++ b/tests/ci/setup/install_packages.sh
@@ -7,6 +7,9 @@ set -e
 echo "Installing base software packages..."
 
 DEBIAN_FRONTEND=noninteractive apt-get install -y \
-    sudo unzip wget
+    locales sudo unzip wget
+
+# We set up one locale which uses the comma as decimal separator. Used by the testsuite
+locale-gen de_DE de_DE.UTF-8
 
 echo "Done installing base software packages"