diff --git a/backend/app/plugins/wiaas/tests/dummy-files/invalid-customer-acceptance.txt b/backend/app/plugins/wiaas/tests/dummy-files/invalid-customer-acceptance.txt
new file mode 100644
index 0000000..b7534b8
--- /dev/null
+++ b/backend/app/plugins/wiaas/tests/dummy-files/invalid-customer-acceptance.txt
@@ -0,0 +1,27 @@
+
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diff --git a/backend/app/plugins/wiaas/tests/dummy-files/valid-customer-acceptance.odt b/backend/app/plugins/wiaas/tests/dummy-files/valid-customer-acceptance.odt
new file mode 100644
index 0000000..060cb8a
Binary files /dev/null and b/backend/app/plugins/wiaas/tests/dummy-files/valid-customer-acceptance.odt differ
