diff --git a/gerbonara/tests/image_support.py b/gerbonara/tests/image_support.py
index 0c47c8b..8941f82 100644
--- a/gerbonara/tests/image_support.py
+++ b/gerbonara/tests/image_support.py
@@ -151,8 +151,12 @@ def svg_soup(filename):
         f.write(str(soup))
 
 def cleanup_gerbv_svg(soup):
-    soup.svg['width'] = f'{float(soup.svg["width"])/72*25.4:.4f}mm'
-    soup.svg['height'] = f'{float(soup.svg["height"])/72*25.4:.4f}mm'
+    width = soup.svg["width"]
+    height = soup.svg["height"]
+    width = width[:-2] if width.endswith('pt') else width
+    height = height[:-2] if height.endswith('pt') else height
+    soup.svg['width'] = f'{float(width)/72*25.4:.4f}mm'
+    soup.svg['height'] = f'{float(height)/72*25.4:.4f}mm'
     for group in soup.find_all('g'):
         # gerbv uses Cairo's SVG canvas. Cairo's SVG canvas is kind of broken. It has no support for unit
         # handling at all, which means the output files just end up being in pixels at 72 dpi. Further, it
diff --git a/podman/arch-testenv b/podman/arch-testenv
index e878362..2ab09a6 100644
--- a/podman/arch-testenv
+++ b/podman/arch-testenv
@@ -2,7 +2,7 @@
 FROM docker.io/archlinux:latest
 MAINTAINER gerbolyze@jaseg.de
 RUN pacman --noconfirm -Syu
-RUN pacman --noconfirm -Sy git python python-pip base-devel python-numpy python-slugify python-lxml python-click python-pillow librsvg python-scipy python-sphinx python-pytest twine python-beautifulsoup4 gerbv rustup cargo
+RUN pacman --noconfirm -Sy git python python-pip base-devel python-numpy python-slugify python-lxml python-click python-pillow librsvg python-scipy python-sphinx python-pytest twine python-beautifulsoup4 gerbv rustup cargo rsync
 RUN python3 -m pip install pytest-parallel
 RUN rustup install stable
 RUN rustup default stable
diff --git a/podman/testdata/.gitignore b/podman/testdata/.gitignore
new file mode 100644
index 0000000..5664e30
--- /dev/null
+++ b/podman/testdata/.gitignore
@@ -0,0 +1 @@
+git
diff --git a/podman/testdata/testscript.sh b/podman/testdata/testscript.sh
index 4e191b9..d36560d 100755
--- a/podman/testdata/testscript.sh
+++ b/podman/testdata/testscript.sh
@@ -1,12 +1,7 @@
 #!/bin/sh
 
 set -e 
-git clone /data/git git
+rsync -av /data/git git
 cd git
 
-if [ $# -ge 1 -a "$1" = "--parallel" ]; then
-    python3 -m pytest --workers auto
-else
-    python3 -m pytest -x
-fi
-
+python3 -m pytest $@
diff --git a/podman/ubuntu-testenv b/podman/ubuntu-testenv
index df8834a..1e02963 100644
--- a/podman/ubuntu-testenv
+++ b/podman/ubuntu-testenv
@@ -2,6 +2,7 @@
 FROM docker.io/ubuntu:latest
 MAINTAINER gerbolyze@jaseg.de
 RUN env DEBIAN_FRONTEND=noninteractive apt update -y
-RUN env DEBIAN_FRONTEND=noninteractive apt install -y python3 git python3-wheel curl python3-pip python3-venv cargo
+RUN env DEBIAN_FRONTEND=noninteractive apt install -y python3 git python3-wheel curl python3-pip python3-venv cargo gerbv
 RUN cargo install usvg resvg
 RUN python3 -m pip install numpy slugify lxml click pillow scipy sphinx pytest beautifulsoup4 pytest-parallel
+RUN env DEBIAN_FRONTEND=noninteractive apt install -y rsync
diff --git a/pytest.ini b/pytest.ini
new file mode 100644
index 0000000..06d3c26
--- /dev/null
+++ b/pytest.ini
@@ -0,0 +1,3 @@
+[pytest]
+testpaths = gerbonara/tests
+norecursedirs=*
diff --git a/run-tests.sh b/run-tests.sh
index 76be006..1ed2b66 100755
--- a/run-tests.sh
+++ b/run-tests.sh
@@ -1,14 +1,32 @@
 #!/bin/sh
 
 set -e
-CONTAINER_ARGS="$@"
 
-rm -rf podman/testdata/git
-git clone --depth 1 . podman/testdata/git
+while [ $# -gt 0 ]; do
+    case $1 in
+        --parallel)
+            CONTAINER_ARGS="--workers auto $CONTAINER_ARGS"
+            shift;;
+        -x)
+            CONTAINER_ARGS="-x $CONTAINER_ARGS"
+            shift;;
+        --no-cache)
+            NO_CACHE=--no-cache
+            shift;;
+        *)
+            echo "Unknown argument \"$1\""
+            exit 1
+            shift;;
+    esac
+done
 
-for distro in arch ubuntu
+mkdir -p podman/testdata/git
+git ls-tree --full-tree -r HEAD --name-only | rsync -lptgoDv --delete . --files-from - podman/testdata/git/
+#git clone --depth 1 . podman/testdata/git
+
+for distro in ubuntu arch
 do
-    podman build -t gerbonara-$distro-testenv -f podman/$distro-testenv
+    podman build $NO_CACHE -t gerbonara-$distro-testenv -f podman/$distro-testenv
     mkdir -p /tmp/gerbonara-test-out
     podman run --mount type=bind,src=podman/testdata,dst=/data,ro --mount type=bind,src=/tmp/gerbonara-test-out,dst=/out gerbonara-$distro-testenv /data/testscript.sh $CONTAINER_ARGS
 done