Add util/test-native.sh from #1048

PiperOrigin-RevId: 606064969

util/test-native.sh

@@ -0,0 +1,30 @@
+#!/usr/bin/env bash
+# Copyright 2024 The Google Java Format Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -euox pipefail
+
+time java -jar core/target/google-java-format-*-all-deps.jar || true
+
+status=-1
+chmod +x core/target/google-java-format
+if time core/target/google-java-format; then
+ status=0
+else
+ status=$?
+fi
+if [[ $status -ne 2 ]]; then
+  echo "google-java-format_linux (native) without arguments should have printed usage help and exited with 2, but did not :("
+  exit 1
+fi