diff --git a/docker/run_full_export.py b/docker/run_full_export.py
--- a/docker/run_full_export.py
+++ b/docker/run_full_export.py
@@ -25,14 +25,18 @@
 MAVEN_INDEX_ARCHIVE = f"{MAVEN_INDEX_NAME}.gz"
 
 
-def _download_indexes(work_dir: str, instance_url: str) -> None:
+def _download_indexes(base_url: str, work_dir: str) -> None:
     """Download all required indexes from the .index/ directory
     of the specified instance.
 
     """
-    logger.info("Downloading all required indexes")
+    if base_url.startswith('test://'):
+        logger.info("(Testing) Fake downloading required indexes")
+        return None
 
-    index_url = urljoin(instance_url, ".index/")
+    logger.info("Downloading required indexes")
+
+    index_url = urljoin(base_url, ".index/")
 
     properties_name = f"{MAVEN_INDEX_NAME}.properties"
     properties_file = join(work_dir, properties_name)
@@ -122,7 +126,7 @@
 
     # Grab all the indexes
     # Only fetch the new ones, existing files won't be re-downloaded.
-    _download_indexes(work_dir, base_url)
+    _download_indexes(base_url, work_dir)
 
     # Extract indexes into a .fld file
     check_call(["/opt/extract_indexes.sh", work_dir])
diff --git a/scripts/requirements.txt b/scripts/requirements.txt
deleted file mode 100644
--- a/scripts/requirements.txt
+++ /dev/null
@@ -1,10 +0,0 @@
-certifi==2021.5.30
-charset-normalizer==2.0.4
-docker==5.0.0
-idna==3.2
-pkg-resources==0.0.0
-requests==2.26.0
-six==1.16.0
-urllib3==1.26.6
-websocket-client==1.2.1
-click
diff --git a/tests/.gitignore b/tests/.gitignore
new file mode 100644
--- /dev/null
+++ b/tests/.gitignore
@@ -0,0 +1,2 @@
+publish/
+export/
diff --git a/tests/Makefile b/tests/Makefile
new file mode 100644
--- /dev/null
+++ b/tests/Makefile
@@ -0,0 +1,5 @@
+build-and-test:
+	./build_and_test_image.sh
+
+test:
+	./test_image.sh
diff --git a/tests/build_and_test_image.sh b/tests/build_and_test_image.sh
new file mode 100755
--- /dev/null
+++ b/tests/build_and_test_image.sh
@@ -0,0 +1,56 @@
+#!/bin/bash
+
+# Copyright (C) 2021-2022 The Software Heritage developers
+# See the AUTHORS file at the top-level directory of this distribution
+# License: GNU General Public License version 3, or any later version
+# See top-level LICENSE file for more information
+
+DOCKER_IMAGE="softwareheritage/maven-index-exporter"
+LOG=test_docker_image.log
+
+# This script builds the docker image for maven-index-exporter, and
+# executes it on a known set of indexes and checks the results in order
+# to test the full tool chain.
+
+echo "Script started on `date +%Y%m%d_%H%M%S`."
+echo "* Writing log to $LOG."
+
+# Find location of script directory
+OLD_DIR=$(pwd)
+REPO_DIR=$(CDPATH= cd -- "$(dirname -- "$0")/.." && pwd)
+cd $OLD_DIR
+
+# First clean up and remove any docker image with our own name
+docker rmi $DOCKER_IMAGE >>$LOG 2>&1
+RET=$?
+if [[ $RET -eq 0 ]]; then
+    echo "* Docker image [$DOCKER_IMAGE] deleted."
+elif [[ $RET -eq 1 ]]; then
+    echo "* Docker image [$DOCKER_IMAGE] doesn't exist."
+else
+    echo "Error when deleting docker image [$DOCKER_IMAGE]."
+fi
+
+# Build the image and tag it as $DOCKER_IMAGE
+cd $REPO_DIR/docker
+echo "* Building docker image."
+docker build . -t $DOCKER_IMAGE >>$LOG
+RET=$?
+if [[ $RET -eq 0 ]]; then
+    echo "PASS: docker build returned 0."
+else
+    echo "FAIL: docker build returned $RET."
+    exit 20
+fi
+
+# Assert docker image has been created.
+COUNT=$(docker images | grep -E "^$DOCKER_IMAGE\s" | wc -l)
+if [[ $COUNT -eq 0 ]]; then
+    echo "FAIL: Docker image cannot be listed."
+    exit 10
+else
+  echo "PASS: Docker image is listed."
+fi
+
+cd $OLD_DIR
+./test_image.sh
diff --git a/scripts/test_docker_image.sh b/tests/test_image.sh
rename from scripts/test_docker_image.sh
rename to tests/test_image.sh
--- a/scripts/test_docker_image.sh
+++ b/tests/test_image.sh
@@ -1,63 +1,29 @@
 #!/bin/bash
 
-# Copyright (C) 2021 The Software Heritage developers
+# Copyright (C) 2021-2022 The Software Heritage developers
 # See the AUTHORS file at the top-level directory of this distribution
 # License: GNU General Public License version 3, or any later version
 # See top-level LICENSE file for more information
 
-DOCKER_IMAGE="maven-index-exporter"
+DOCKER_IMAGE="softwareheritage/maven-index-exporter"
 LOG=test_docker_image.log
 
-# This script builds the docker image for maven-index-exporter, and
-# executes it on a known set of indexes and checks the results in order
-# to test the full tool chain.
-
-echo "Script started on `date +%Y%m%d_%H%M%S`."
-echo "* Writing log to $LOG."
-
-# Find location of script directory
-OLD_DIR=$(pwd)
 REPO_DIR=$(CDPATH= cd -- "$(dirname -- "$0")/.." && pwd)
-cd $OLD_DIR
-
 WORK_DIR=$REPO_DIR/tests/repository_test
 EXPORT_DIR=$WORK_DIR/export
+PUBLISH_DIR=$REPO_DIR/tests/publish
 
-# First clean up and remove any docker image with our own name
-docker rmi $DOCKER_IMAGE >>$LOG 2>&1
-RET=$?
-if [[ $RET -eq 0 ]]; then
-    echo "* Docker image [$DOCKER_IMAGE] deleted."
-elif [[ $RET -eq 1 ]]; then
-    echo "* Docker image [$DOCKER_IMAGE] doesn't exist."
-else
-    echo "Error when deleting docker image [$DOCKER_IMAGE]."
-fi
-
-
-# Build the image and tag it as $DOCKER_IMAGE
-cd $REPO_DIR/docker
-echo "* Building docker image."
-docker build . -t $DOCKER_IMAGE --no-cache >>$LOG
-RET=$?
-if [[ $RET -eq 0 ]]; then
-    echo "PASS: docker build returned 0."
-else
-    echo "FAIL: docker build returned $RET."
-    exit 20
-fi
-
-# Assert docker image has been created.
-COUNT=$(docker images | grep -E "^$DOCKER_IMAGE\s" | wc -l)
-if [[ $COUNT -eq 0 ]]; then
-    echo "FAIL: Docker image cannot be listed."
-    exit 10
-else
-  echo "PASS: Docker image is listed."
-fi
+# clean up publish directory
+rm -rf $PUBLISH_DIR/*
+mkdir -p $PUBLISH_DIR
 
+# This will mock out the download part of the python code
+export MVN_IDX_EXPORTER_BASE_URL='test://example.org'
 # Run the image on the maven indexes.
-docker run -v $WORK_DIR:/work $DOCKER_IMAGE >>$LOG 2>&1
+docker run -v $WORK_DIR:/work \
+       -v $PUBLISH_DIR:/publish \
+       -e MVN_IDX_EXPORTER_BASE_URL \
+       $DOCKER_IMAGE >>$LOG 2>&1
 
 # Assert exported text files are there, with the correct content.
 EXPORT_FILE=$(ls $EXPORT_DIR/*.fld)
@@ -117,5 +83,6 @@
 fi
 
 # Cleanup
-rm -rf $EXPORT_DIR
+# clean up publish directory
+rm -rf $PUBLISH_DIR/*
 cd $OLD_DIR