1 files changed, 51 insertions, 0 deletions
diff --git a/scripts/update_help_checks.py b/scripts/update_help_checks.py
new file mode 100755
index 000000000..e439b2ecc
--- /dev/null
+++ b/scripts/update_help_checks.py
@@ -0,0 +1,51 @@
+#!/usr/bin/env python3
+# Copyright 2022 WebAssembly Community Group participants
+#
+# 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.
+
+"""A test case update script for lit help checks.
+"""
+
+import os
+import subprocess
+
+import test.shared as shared
+
+script_dir = os.path.dirname(__file__)
+root_dir = os.path.dirname(script_dir)
+test_dir = os.path.join(root_dir, 'test', 'lit', 'help')
+
+TOOLS = ['wasm-opt', 'wasm-as', 'wasm-dis', 'wasm2js', 'wasm-ctor-eval',
+         'wasm-shell', 'wasm-reduce', 'wasm-metadce', 'wasm-split',
+         'wasm-fuzz-types', 'wasm-emscripten-finalize']
+
+
+def main():
+    for tool in TOOLS:
+        tool_path = os.path.join(shared.options.binaryen_bin, tool)
+        command = [tool_path, '--help']
+        print(command)
+        output = subprocess.check_output(command).decode('utf-8')
+        with open(os.path.join(test_dir, tool + '.test'), 'w') as out:
+            out.write(f';; RUN: {tool} --help | filecheck %s' + os.linesep)
+            first = True
+            for line in output.splitlines():
+                if first:
+                    out.write(f';; CHECK: {line}'.strip() + os.linesep)
+                    first = False
+                else:
+                    out.write(f';; CHECK-NEXT: {line}'.strip() + os.linesep)
+
+
+if __name__ == '__main__':
+    main()