diff --git a/tests/fixtures/patch-minimal.xml b/tests/fixtures/patch-minimal.xml
new file mode 100644
index 0000000..2561b8d
--- /dev/null
+++ b/tests/fixtures/patch-minimal.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape>
+  <group id="options">
+    <group id="scroll" mousewheel-zoom="false" />
+    <group id="zoom" mousewheel-zoom-ctrl="true" />
+    <group id="new-group" new-attr="new-value" />
+  </group>
+  <group id="tools">
+    <group id="nodes" square-handles="true" show-rotation-handles="false" />
+  </group>
+</inkscape>
diff --git a/tests/fixtures/prefs-fresh.xml b/tests/fixtures/prefs-fresh.xml
new file mode 100644
index 0000000..c6855ac
--- /dev/null
+++ b/tests/fixtures/prefs-fresh.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape version="1" xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.0.dtd" xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape">
+  <group id="options">
+    <group id="window" geometry="800x600+100+100" save-geom="true" />
+    <group id="scroll" mousewheel-zoom="true" />
+    <group id="zoom" mousewheel-zoom-ctrl="false" />
+  </group>
+  <group id="tools">
+    <group id="nodes" square-handles="false" show-rotation-handles="true" />
+  </group>
+</inkscape>
diff --git a/tests/fixtures/prefs-user-custom.xml b/tests/fixtures/prefs-user-custom.xml
new file mode 100644
index 0000000..c5fa064
--- /dev/null
+++ b/tests/fixtures/prefs-user-custom.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape version="1" xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.0.dtd" xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape">
+  <group id="options">
+    <group id="window" geometry="1920x1080+0+0" save-geom="true" />
+    <group id="scroll" mousewheel-zoom="true" />
+    <group id="zoom" mousewheel-zoom-ctrl="false" />
+    <group id="user-custom-setting" my-value="keep-this" />
+  </group>
+  <group id="tools">
+    <group id="nodes" square-handles="false" show-rotation-handles="true" user-pref="preserved" />
+    <group id="user-tool-pref" color="#ff0000" />
+  </group>
+</inkscape>