diff --git a/tests/Dockerfile b/tests/Dockerfile
index 3a70de0..8146c9c 100644
--- a/tests/Dockerfile
+++ b/tests/Dockerfile
@@ -1,3 +1,5 @@
 FROM ttionya/vaultwarden-backup:dev
 
+COPY tests/fixtures/source /
+
 ENTRYPOINT ["/app/entrypoint.sh"]
diff --git a/tests/test.sh b/tests/test.sh
new file mode 100644
index 0000000..7985c04
--- /dev/null
+++ b/tests/test.sh
@@ -0,0 +1,3 @@
+#!/bin/bash
+
+. units/backup-zip-file/test.sh
diff --git a/tests/units/backup-zip-file/test.sh b/tests/units/backup-zip-file/test.sh
new file mode 100644
index 0000000..2b64fff
--- /dev/null
+++ b/tests/units/backup-zip-file/test.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+
+echo "Test backup-zip-file"
+
+mkdir -p outputs/backup-zip-file
+
+docker run --rm \
+  --mount type=bind,source=$(pwd)/outputs/backup-zip-file,target=/outputs \
+  -e RCLONE_REMOTE_DIR=/outputs \
+  ttionya/vaultwarden-backup:test \
+  backup
+
+ls -l outputs/backup-zip-file