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synced 2026-11-10 22:27:01 +01:00
Krzysztof kuhy Rudnicki
c4d5631054
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The CUPS-fallback note blamed a missing pyusb when the probe was really skipped because CUPS owned the printer. It now names the real reason. run.sh installs python-pyusb for the system python3 that sudo runs. A paper misfeed blocks the usb:// backend while CUPS keeps saying "processing", and cancel leaves that backend hung so the queue never recovers. The report now flags a job whose page counter is frozen for 15 s, and a backend of a cancelled job, with a y/N offer to SIGKILL it. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01AaBRWtXXWCs3K3yPHSruUC
231 lines
8.6 KiB
Python
231 lines
8.6 KiB
Python
"""Tests for brother_printer.display module."""
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from __future__ import annotations
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from io import StringIO
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from unittest.mock import MagicMock, patch
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import pytest
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from python_pkg.brother_printer.data_classes import (
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CupsDiagnosis,
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USBPortStatus,
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USBResult,
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)
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from python_pkg.brother_printer.display import (
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_display_cups_fallback_note,
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_display_pjl_status,
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_display_report_header,
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_display_usb_device_info,
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_format_status_detail,
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display_usb_results,
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)
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MOD = "python_pkg.brother_printer.display"
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class TestDisplayReportHeader:
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def test_prints_header(self) -> None:
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with patch("sys.stdout", new_callable=StringIO) as out:
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_display_report_header()
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assert "Brother Laser Printer" in out.getvalue()
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class TestDisplayUsbDeviceInfo:
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def test_full_info(self) -> None:
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r = USBResult(
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product="HL-1110",
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serial="SN123",
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online="TRUE",
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economode="ON",
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)
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with patch("sys.stdout", new_callable=StringIO) as out:
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_display_usb_device_info(r)
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text = out.getvalue()
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assert "HL-1110" in text
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assert "SN123" in text
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assert "Yes" in text
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assert "Toner Save" in text
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def test_offline(self) -> None:
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r = USBResult(online="FALSE")
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with patch("sys.stdout", new_callable=StringIO) as out:
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_display_usb_device_info(r)
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assert "No (needs attention)" in out.getvalue()
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def test_no_online(self) -> None:
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r = USBResult(online="")
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with patch("sys.stdout", new_callable=StringIO) as out:
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_display_usb_device_info(r)
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assert "Online" not in out.getvalue()
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def test_economode_off(self) -> None:
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r = USBResult(economode="OFF")
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with patch("sys.stdout", new_callable=StringIO) as out:
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_display_usb_device_info(r)
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assert "OFF" in out.getvalue()
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def test_no_economode(self) -> None:
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r = USBResult(economode="")
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with patch("sys.stdout", new_callable=StringIO) as out:
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_display_usb_device_info(r)
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assert "Toner Save" not in out.getvalue()
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def test_no_serial(self) -> None:
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r = USBResult(serial="")
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with patch("sys.stdout", new_callable=StringIO) as out:
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_display_usb_device_info(r)
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assert "Serial" not in out.getvalue()
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def test_no_product(self) -> None:
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r = USBResult(product="")
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with patch("sys.stdout", new_callable=StringIO) as out:
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_display_usb_device_info(r)
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assert "Unknown" in out.getvalue()
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class TestFormatStatusDetail:
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def test_with_action(self) -> None:
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r = USBResult(
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status_code="30010",
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display="Toner Low Display",
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)
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with patch("sys.stdout", new_callable=StringIO) as out:
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_format_status_detail("warn", "Toner Low", "Replace toner", r)
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text = out.getvalue()
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assert "Toner Low" in text
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assert "Replace toner" in text
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assert "Display:" in text
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def test_no_action(self) -> None:
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r = USBResult(status_code="10001", display="Ready")
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with patch("sys.stdout", new_callable=StringIO) as out:
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_format_status_detail("ok", "Ready", "", r)
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assert "Action" not in out.getvalue()
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def test_display_same_as_text(self) -> None:
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r = USBResult(status_code="10001", display="Ready")
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with patch("sys.stdout", new_callable=StringIO) as out:
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_format_status_detail("ok", "Ready", "", r)
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assert "Display:" not in out.getvalue()
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def test_unknown_severity(self) -> None:
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r = USBResult(status_code="99999", display="")
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with patch("sys.stdout", new_callable=StringIO):
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_format_status_detail("unknown", "Test", "", r)
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# Should not crash
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def test_critical(self) -> None:
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r = USBResult(status_code="40310", display="Toner End")
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with patch("sys.stdout", new_callable=StringIO) as out:
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_format_status_detail("critical", "Toner End", "Replace", r)
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assert "ACTION REQUIRED" in out.getvalue()
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def test_info(self) -> None:
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r = USBResult(status_code="10006", display="Processing")
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with patch("sys.stdout", new_callable=StringIO) as out:
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_format_status_detail("info", "Processing", "", r)
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assert "busy" in out.getvalue()
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class TestDisplayPjlStatus:
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def test_no_code(self) -> None:
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r = USBResult(status_code="", display="hello")
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with patch("sys.stdout", new_callable=StringIO) as out:
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_display_pjl_status(r)
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assert "Could not read status" in out.getvalue()
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assert "hello" in out.getvalue()
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def test_no_code_no_display(self) -> None:
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r = USBResult(status_code="", display="")
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with patch("sys.stdout", new_callable=StringIO) as out:
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_display_pjl_status(r)
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assert "Could not read status" in out.getvalue()
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@patch(f"{MOD}._format_status_detail")
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@patch(f"{MOD}.get_status_info", return_value=("ok", "Ready", ""))
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def test_with_code(self, g: MagicMock, mock_fmt: MagicMock) -> None:
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r = USBResult(status_code="10001")
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with patch("sys.stdout", new_callable=StringIO):
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_display_pjl_status(r)
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mock_fmt.assert_called_once()
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class TestDisplayCupsFallbackNote:
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def test_with_port_status(self) -> None:
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r = USBResult(port_status=USBPortStatus())
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with patch("sys.stdout", new_callable=StringIO) as out:
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_display_cups_fallback_note(r)
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assert "USB port query" in out.getvalue()
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def test_without_port_status_shows_reason(self) -> None:
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r = USBResult(cups=CupsDiagnosis(probe_note="pyusb not installed"))
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with patch("sys.stdout", new_callable=StringIO) as out:
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_display_cups_fallback_note(r)
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assert "Note: pyusb not installed;" in out.getvalue()
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def test_without_port_status_or_reason(self) -> None:
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r = USBResult(port_status=None)
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with patch("sys.stdout", new_callable=StringIO) as out:
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_display_cups_fallback_note(r)
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assert "USB status probe failed" in out.getvalue()
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class TestDisplayUsbResults:
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def test_normal(self) -> None:
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r = USBResult(device="/dev/usb/lp0")
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with (
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patch(f"{MOD}._display_report_header"),
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patch(f"{MOD}._display_usb_device_info"),
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patch(f"{MOD}._display_pjl_status"),
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patch(f"{MOD}._display_page_count_estimate"),
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patch(f"{MOD}._display_consumables_reference"),
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patch(f"{MOD}.get_cups_queue_status"),
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patch(f"{MOD}.display_cups_queue_status"),
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patch("sys.stdout", new_callable=StringIO),
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):
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display_usb_results(r)
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def test_cups_device(self) -> None:
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r = USBResult(device="cups")
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with (
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patch(f"{MOD}._display_report_header"),
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patch(f"{MOD}._display_usb_device_info"),
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patch(f"{MOD}._display_pjl_status"),
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patch(f"{MOD}._display_page_count_estimate"),
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patch(f"{MOD}._display_consumables_reference"),
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patch(f"{MOD}.get_cups_queue_status"),
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patch(f"{MOD}.display_cups_queue_status"),
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patch(f"{MOD}._display_cups_fallback_note") as mock_fallback,
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patch(f"{MOD}.offer_backend_kill") as mock_kill,
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patch("sys.stdout", new_callable=StringIO),
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):
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display_usb_results(r)
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mock_fallback.assert_called_once()
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mock_kill.assert_not_called()
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def test_cups_device_offers_backend_kill(self) -> None:
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r = USBResult(device="cups", cups=CupsDiagnosis(orphaned_backend_pid=4242))
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with (
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patch(f"{MOD}._display_report_header"),
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patch(f"{MOD}._display_usb_device_info"),
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patch(f"{MOD}._display_pjl_status"),
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patch(f"{MOD}._display_page_count_estimate"),
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patch(f"{MOD}._display_consumables_reference"),
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patch(f"{MOD}.get_cups_queue_status"),
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patch(f"{MOD}.display_cups_queue_status"),
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patch(f"{MOD}._display_cups_fallback_note"),
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patch(f"{MOD}.offer_backend_kill") as mock_kill,
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patch("sys.stdout", new_callable=StringIO),
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):
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display_usb_results(r)
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mock_kill.assert_called_once_with(4242)
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def test_error(self) -> None:
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r = USBResult(error="fail")
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with (
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patch("sys.stdout", new_callable=StringIO),
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pytest.raises(SystemExit),
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):
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display_usb_results(r)
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