git subrepo clone --branch=20.41.6 git@github.com:ETLCPP/etl.git components/etl

subrepo:
  subdir:   "components/etl"
  merged:   "be5537ec"
upstream:
  origin:   "git@github.com:ETLCPP/etl.git"
  branch:   "20.41.6"
  commit:   "be5537ec"
git-subrepo:
  version:  "0.4.9"
  origin:   "???"
  commit:   "???"

components/etl/scripts/generator_test.py

@@ -0,0 +1,45 @@
+import subprocess
+from os.path import abspath
+from pathlib import Path
+import filecmp
+
+root_path = Path(abspath(__file__)).parent.parent
+generator_folder = root_path/"include" / "etl" / "generators"
+
+# Create folder where generator outputs can go for purpose of comparison
+test_folder = root_path / "build" / "generator_tmp"
+test_folder.mkdir(parents=True, exist_ok= True)
+
+all_ok = True
+for generator in generator_folder.iterdir():
+    if generator.suffix != ".h":
+        continue
+    generator_path = str(generator_folder / generator)
+    output_name = generator.name[:-12] + ".h"
+    output_path = str(test_folder / output_name)
+
+    cog_cmd = [
+        "cog",
+        "-d",
+        "-e",
+        f"-o{output_path}",
+        "-DHandlers=16",
+        "-DNTypes=16",
+        "-DIsOneOf=16",
+        generator_path
+    ]
+
+    subprocess.run(cog_cmd)
+
+    # Compare generator output against actual file output
+    actual_path = str(generator_folder.parent / output_name)
+    if not filecmp.cmp(actual_path, output_path):
+        print(f"Generator for {output_name} does not match file contents")
+        all_ok = False
+
+if all_ok:
+    print(f"\nAll generator tests passed\n")
+    exit(0)
+else:
+    print(f"\nGenerator tests failed\n")
+    exit(1)