Fixing up the tests and redirecting the progress bar to stderr

src/documents/management/commands/base.py

@@ -18,6 +18,7 @@ from typing import TypeVar
 from django import db
 from django.core.management import CommandError
 from django_rich.management import RichCommand
+from rich.console import Console
 from rich.progress import BarColumn
 from rich.progress import MofNCompleteColumn
 from rich.progress import Progress
@@ -142,6 +143,12 @@ class PaperlessCommand(RichCommand):
         """
         Create a configured Progress instance.
 
+        Progress output is directed to stderr to match the convention that
+        progress bars are transient UI feedback, not command output. This
+        mirrors tqdm's default behavior and prevents progress bar rendering
+        from interfering with stdout-based assertions in tests or piped
+        command output.
+
         Args:
             description: Text to display alongside the progress bar.
 
@@ -155,7 +162,7 @@ class PaperlessCommand(RichCommand):
             MofNCompleteColumn(),
             TimeElapsedColumn(),
             TimeRemainingColumn(),
-            console=self.console,
+            console=Console(stderr=True),
             transient=False,
         )
 

src/documents/management/commands/document_fuzzy_match.py

@@ -62,9 +62,10 @@ class Command(PaperlessCommand):
         RATIO_MAX: Final[float] = 100.0
 
         if options["delete"]:
-            self.console.print(
+            self.stdout.write(
-                "[yellow]The command is configured to delete documents. "
+                self.style.WARNING(
-                "Use with caution.[/yellow]",
+                    "The command is configured to delete documents.  Use with caution",
+                ),
             )
 
         opt_ratio = options["ratio"]
@@ -90,17 +91,21 @@ class Command(PaperlessCommand):
                 work_pkgs.append(_WorkPackage(first_doc, second_doc))
 
         results: list[_WorkResult] = []
-        for result in self.process_parallel(
+        if self.process_count == 1:
+            for work in self.track(work_pkgs, description="Matching..."):
+                results.append(_process_and_match(work))
+        else:  # pragma: no cover
+            for proc_result in self.process_parallel(
                 _process_and_match,
                 work_pkgs,
                 description="Matching...",
             ):
-            if result.error:
+                if proc_result.error:
                     self.console.print(
-                    f"[red]Failed: {result.error}[/red]",
+                        f"[red]Failed: {proc_result.error}[/red]",
                     )
-            elif result.result is not None:
+                elif proc_result.result is not None:
-                results.append(result.result)
+                    results.append(proc_result.result)
 
         messages: list[str] = []
         maybe_delete_ids: list[int] = []
@@ -120,8 +125,9 @@ class Command(PaperlessCommand):
         self.stdout.writelines(messages)
 
         if options["delete"]:
-            self.console.print(
+            self.stdout.write(
-                f"[yellow]Deleting {len(maybe_delete_ids)} documents "
+                self.style.NOTICE(
-                f"based on ratio matches[/yellow]",
+                    f"Deleting {len(maybe_delete_ids)} documents based on ratio matches",
+                ),
             )
             Document.objects.filter(pk__in=maybe_delete_ids).delete()

src/documents/management/commands/document_thumbnails.py

@@ -5,13 +5,19 @@ from documents.management.commands.base import PaperlessCommand
 from documents.models import Document
 from documents.parsers import get_parser_class_for_mime_type
 
+logger = logging.getLogger("paperless.management.thumbnails")
+
 
 def _process_document(doc_id: int) -> None:
     document: Document = Document.objects.get(id=doc_id)
     parser_class = get_parser_class_for_mime_type(document.mime_type)
 
     if parser_class is None:
-        print(f"{document} No parser for mime type {document.mime_type}")  # noqa: T201
+        logger.warning(
+            "%s: No parser for mime type %s",
+            document,
+            document.mime_type,
+        )
         return
 
     parser = parser_class(logging_group=None)

src/documents/tests/test_management_fuzzy.py

@@ -140,7 +140,7 @@ class TestFuzzyMatchCommand(TestCase):
             mime_type="application/pdf",
             filename="final_test.pdf",
         )
-        stdout, _ = self.call_command()
+        stdout, _ = self.call_command("--no-progress-bar")
         lines = [x.strip() for x in stdout.splitlines() if x.strip()]
         self.assertEqual(len(lines), 3)
         for line in lines: