1 files changed, 58 insertions, 0 deletions
diff --git a/tests/test-patch-bazzite-deck-identity.sh b/tests/test-patch-bazzite-deck-identity.sh
new file mode 100755
index 0000000..fa420ce
--- /dev/null
+++ b/tests/test-patch-bazzite-deck-identity.sh
@@ -0,0 +1,58 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+repo_root="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+fixture_root="${repo_root}/tests/fixtures/bazzite-44"
+test_root="$(mktemp -d -t aerocore-deck-identity.XXXXXXXXXX)"
+trap 'rm -rf "${test_root}"' EXIT
+
+cp -a "${fixture_root}/." "${test_root}/"
+
+run_patch() {
+  AEROCORE_DECK_COMPAT_ROOT="${test_root}" \
+    bash "${repo_root}/build_files/patch-bazzite-deck-identity.sh"
+}
+
+assert_count() {
+  local expected="$1"
+  local pattern="$2"
+  local file="$3"
+  local actual
+
+  actual="$(grep -Foc "${pattern}" "${file}" || true)"
+  if [[ "${actual}" != "${expected}" ]]; then
+    echo "Expected ${expected} occurrence(s) of '${pattern}' in ${file}, found ${actual}" >&2
+    exit 1
+  fi
+}
+
+hardware_setup="${test_root}/usr/libexec/bazzite-hardware-setup"
+steam="${test_root}/usr/bin/bazzite-steam"
+user_setup="${test_root}/usr/libexec/bazzite-user-setup"
+# shellcheck disable=SC2016
+deck_condition='if [[ $IMAGE_NAME =~ "deck" || $IMAGE_NAME == aerocore-os ]]; then'
+# shellcheck disable=SC2016
+non_deck_condition='if [[ "$IMAGE_NAME" != aerocore-os && "$IMAGE_NAME" != *deck* && "$IMAGE_NAME" != *dx* ]]; then'
+
+run_patch
+
+assert_count 1 "${non_deck_condition}" "${hardware_setup}"
+assert_count 1 "${deck_condition}" "${hardware_setup}"
+assert_count 1 "${deck_condition}" "${steam}"
+assert_count 3 "${deck_condition}" "${user_setup}"
+assert_count 1 'AeroCore Steam state migration' "${steam}"
+
+# A second run must recognize the patched fixture and make no further changes.
+first_digest="$(sha256sum "${hardware_setup}" "${steam}" "${user_setup}")"
+run_patch
+second_digest="$(sha256sum "${hardware_setup}" "${steam}" "${user_setup}")"
+
+if [[ "${first_digest}" != "${second_digest}" ]]; then
+  echo "Deck identity patch is not idempotent" >&2
+  exit 1
+fi
+
+assert_count 1 'AeroCore Steam state migration' "${steam}"
+
+echo "Bazzite 44 Deck identity fixture passed"