diff --git a/.woodpecker.yml b/.woodpecker.yml
index 82da5dc..fc3b6b2 100644
--- a/.woodpecker.yml
+++ b/.woodpecker.yml
@@ -9,10 +9,7 @@ pipeline:
       - unzip -d /opt /opt/instantclient-basic-linux.x64-21.4.0.0.0dbru.zip
       - echo /opt/instantclient_* > /etc/ld.so.conf.d/oracle-instantclient.conf
       - ldconfig
-      - python3 -m venv venv
-      - source venv/bin/activate
-      - python3 -m pip install -e ".[dev]"
-      - python3 -m pytest tests
+      - ./tests.sh
   build:
     image: debian
     commands:
diff --git a/tests.sh b/tests.sh
new file mode 100755
index 0000000..d50833d
--- /dev/null
+++ b/tests.sh
@@ -0,0 +1,28 @@
+#!/bin/bash
+
+# Enter source directory
+cd $( dirname $0 )
+
+if [ -d venv ]
+then
+	VENV=$( realpath venv )
+	TEMP_VENV=0
+else
+	# Install stdeb in temporary venv
+	VENV=$(mktemp -d)
+	echo "Create a temporary virtualenv in $VENV to install build dependencies..."
+	TEMP_VENV=1
+	python3 -m venv $VENV
+fi
+
+# Install package with dev dependencies
+$VENV/bin/python3 -m pip install -e ".[dev]"
+
+# Run tests
+$VENV/bin/python3 -m pytest tests
+RES=$?
+
+# Clean temporary venv
+[ $TEMP_VENV -eq 1 ] && rm -fr $VENV
+
+exit $RES