diff --git a/.github/workflows/build-and-release.yml b/.github/workflows/build-and-release.yml
index 6109d01..82c4eeb 100644
--- a/.github/workflows/build-and-release.yml
+++ b/.github/workflows/build-and-release.yml
@@ -33,3 +33,6 @@ jobs:
 
       - name: Setup Tests
         run: bats bats/setup.bats
+
+      - name: Test ext4
+        run: bats bats/ext4.bats
diff --git a/bats/ext4.bats b/bats/ext4.bats
new file mode 100644
index 0000000..8deb7df
--- /dev/null
+++ b/bats/ext4.bats
@@ -0,0 +1,21 @@
+#!/usr/bin/env bats
+# vim: set ft=sh sw=4 :
+
+load helper_print-info
+
+setup() {
+    # get the containing directory of this file
+    # use $BATS_TEST_FILENAME instead of ${BASH_SOURCE[0]} or $0,
+    # as those will point to the bats executable's location or the preprocessed file respectively
+    DIR="$( cd "$( dirname "$BATS_TEST_FILENAME" )" >/dev/null 2>&1 && pwd )"
+    # make executables in root of the repo visible to PATH
+    PATH="$DIR/../:$PATH"
+}
+
+@test "format & mount loop with ext4" {
+    run sudo $(command -v ebs-bootstrap) -config /tmp/ext4-bootstrap.yaml -mode force
+
+    print_run_info
+    [ "$status" -eq 0 ] &&
+    [[ "$output" = *"Successfuly formatted /dev/loop"*" to ext4"* ]]
+}
diff --git a/bats/setup.bats b/bats/setup.bats
index 920a398..c4327ec 100644
--- a/bats/setup.bats
+++ b/bats/setup.bats
@@ -24,3 +24,16 @@ setup() {
     [ "$status" -eq 0 ] &&
     [[ "$output" = *"/tmp/fs"* ]]
 }
+
+@test "setup ext4 config" {
+    echo """
+---
+devices:
+  $(cat /tmp/loopdev):
+    fs: ext4
+    mountPoint: /tmp/ext4
+""" > /tmp/ext4-bootstrap.yaml
+
+    run mkdir /tmp/ext4
+    [ "$status" -eq 0 ]
+}