Add watcher test, such as it is

misc/watcher.py

@@ -5,8 +5,7 @@
 
 """Watch a directory for new PDFs and OCR them."""
 
-# Do not enable annotations!
-# https://github.com/tiangolo/typer/discussions/598
+from __future__ import annotations
 
 import json
 import logging
@@ -278,11 +277,11 @@ def main(
         f"Output Directory Year & Month: {output_dir_year_month}\n"
         f"Archive Directory: {archive_dir}"
     )
-    log.debug(
+    log.info(
         f"INPUT_DIRECTORY: {input_dir}\n"
         f"OUTPUT_DIRECTORY: {output_dir}\n"
-        f"OUTPUT_DIRECTORY_YEAR_MONTH: {output_dir_year_month}\n"
         f"ARCHIVE_DIRECTORY: {archive_dir}\n"
+        f"OUTPUT_DIRECTORY_YEAR_MONTH: {output_dir_year_month}\n"
         f"ON_SUCCESS_DELETE: {on_success_delete}\n"
         f"ON_SUCCESS_ARCHIVE: {on_success_archive}\n"
         f"DESKEW: {deskew}\n"

tests/test_watcher.py

@@ -0,0 +1,54 @@
+import datetime
+import os
+import shutil
+import subprocess
+import sys
+import time
+from pathlib import Path
+
+import pytest
+
+watchdog = pytest.importorskip('watchdog')
+
+
+@pytest.mark.parametrize('year_month', [True, False])
+def test_watcher(tmp_path, resources, year_month):
+    input_dir = tmp_path / 'input'
+    input_dir.mkdir()
+    output_dir = tmp_path / 'output'
+    output_dir.mkdir()
+    processed_dir = tmp_path / 'processed'
+    processed_dir.mkdir()
+
+    if year_month:
+        env_extra = {'OCR_OUTPUT_DIRECTORY_YEAR_MONTH': '1'}
+    else:
+        env_extra = {}
+    proc = subprocess.Popen(
+        [
+            sys.executable,
+            Path(__file__).parent.parent / 'misc' / 'watcher.py',
+            str(input_dir),
+            str(output_dir),
+            str(processed_dir),
+        ],
+        cwd=str(tmp_path),
+        env=os.environ.copy() | env_extra,
+    )
+    time.sleep(5)
+
+    shutil.copy(resources / 'trivial.pdf', input_dir / 'trivial.pdf')
+    time.sleep(5)
+
+    if year_month:
+        assert (
+            output_dir
+            / f'{datetime.date.today().year}'
+            / f'{datetime.date.today().month:02d}'
+            / 'trivial.pdf'
+        ).exists()
+    else:
+        assert (output_dir / 'trivial.pdf').exists()
+
+    proc.terminate()
+    proc.wait()