# encoding=utf-8 import io import time from typing import Optional # import pytest from rich.console import Console from rich.text import Text from rich.live import Live def create_capture_console( *, width: int = 60, height: int = 80, force_terminal: Optional[bool] = True ) -> Console: return Console( width=width, height=height, force_terminal=force_terminal, legacy_windows=False, color_system=None, # use no color system to reduce complexity of output ) def test_live_state() -> None: with Live("") as live: assert live._started live.start() assert live.renderable == "" assert live._started live.stop() assert not live._started assert not live._started def test_growing_display() -> None: console = create_capture_console() console.begin_capture() with Live(console=console, auto_refresh=False) as live: display = "" for step in range(10): display += f"Step {step}\n" live.update(display, refresh=True) output = console.end_capture() print(repr(output)) assert ( output == "\x1b[?25lStep 0\n\r\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\nStep 5\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\nStep 5\nStep 6\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\nStep 5\nStep 6\nStep 7\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\nStep 5\nStep 6\nStep 7\nStep 8\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\nStep 5\nStep 6\nStep 7\nStep 8\nStep 9\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\nStep 5\nStep 6\nStep 7\nStep 8\nStep 9\n\n\x1b[?25h" ) def test_growing_display_transient() -> None: console = create_capture_console() console.begin_capture() with Live(console=console, auto_refresh=False, transient=True) as live: display = "" for step in range(10): display += f"Step {step}\n" live.update(display, refresh=True) output = console.end_capture() assert ( output == "\x1b[?25lStep 0\n\r\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\nStep 5\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\nStep 5\nStep 6\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\nStep 5\nStep 6\nStep 7\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\nStep 5\nStep 6\nStep 7\nStep 8\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\nStep 5\nStep 6\nStep 7\nStep 8\nStep 9\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\nStep 5\nStep 6\nStep 7\nStep 8\nStep 9\n\n\x1b[?25h\r\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K" ) def test_growing_display_overflow_ellipsis() -> None: console = create_capture_console(height=5) console.begin_capture() with Live( console=console, auto_refresh=False, vertical_overflow="ellipsis" ) as live: display = "" for step in range(10): display += f"Step {step}\n" live.update(display, refresh=True) output = console.end_capture() assert ( output == "\x1b[?25lStep 0\n\r\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\n ... \r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\n ... \r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\n ... \r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\n ... \r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\n ... \r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\n ... \r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\nStep 5\nStep 6\nStep 7\nStep 8\nStep 9\n\n\x1b[?25h" ) def test_growing_display_overflow_crop() -> None: console = create_capture_console(height=5) console.begin_capture() with Live(console=console, auto_refresh=False, vertical_overflow="crop") as live: display = "" for step in range(10): display += f"Step {step}\n" live.update(display, refresh=True) output = console.end_capture() assert ( output == "\x1b[?25lStep 0\n\r\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\nStep 5\nStep 6\nStep 7\nStep 8\nStep 9\n\n\x1b[?25h" ) def test_growing_display_overflow_visible() -> None: console = create_capture_console(height=5) console.begin_capture() with Live(console=console, auto_refresh=False, vertical_overflow="visible") as live: display = "" for step in range(10): display += f"Step {step}\n" live.update(display, refresh=True) output = console.end_capture() assert ( output == "\x1b[?25lStep 0\n\r\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\nStep 5\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\nStep 5\nStep 6\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\nStep 5\nStep 6\nStep 7\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\nStep 5\nStep 6\nStep 7\nStep 8\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\nStep 5\nStep 6\nStep 7\nStep 8\nStep 9\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\nStep 5\nStep 6\nStep 7\nStep 8\nStep 9\n\n\x1b[?25h" ) def test_growing_display_autorefresh() -> None: """Test generating a table but using auto-refresh from threading""" console = create_capture_console() console = create_capture_console(height=5) console.begin_capture() with Live(console=console, auto_refresh=True, vertical_overflow="visible") as live: display = "" for step in range(10): display += f"Step {step}\n" live.update(display) time.sleep(0.2) # no way to truly test w/ multithreading, just make sure it doesn't crash def test_growing_display_console_redirect() -> None: console = create_capture_console() console.begin_capture() with Live(console=console, auto_refresh=False) as live: display = "" for step in range(10): console.print(f"Running step {step}") display += f"Step {step}\n" live.update(display, refresh=True) output = console.end_capture() assert ( output == "\x1b[?25lRunning step 0\n\r\x1b[2KStep 0\n\r\x1b[2K\x1b[1A\x1b[2KRunning step 1\nStep 0\n\r\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KRunning step 2\nStep 0\nStep 1\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KRunning step 3\nStep 0\nStep 1\nStep 2\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KRunning step 4\nStep 0\nStep 1\nStep 2\nStep 3\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KRunning step 5\nStep 0\nStep 1\nStep 2\nStep 3\nStep 4\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\nStep 5\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KRunning step 6\nStep 0\nStep 1\nStep 2\nStep 3\nStep 4\nStep 5\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\nStep 5\nStep 6\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KRunning step 7\nStep 0\nStep 1\nStep 2\nStep 3\nStep 4\nStep 5\nStep 6\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\nStep 5\nStep 6\nStep 7\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KRunning step 8\nStep 0\nStep 1\nStep 2\nStep 3\nStep 4\nStep 5\nStep 6\nStep 7\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\nStep 5\nStep 6\nStep 7\nStep 8\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KRunning step 9\nStep 0\nStep 1\nStep 2\nStep 3\nStep 4\nStep 5\nStep 6\nStep 7\nStep 8\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\nStep 5\nStep 6\nStep 7\nStep 8\nStep 9\n\r\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2K\x1b[1A\x1b[2KStep 0\nStep 1\nStep 2\nStep 3\nStep 4\nStep 5\nStep 6\nStep 7\nStep 8\nStep 9\n\n\x1b[?25h" ) def test_growing_display_file_console() -> None: console = create_capture_console(force_terminal=False) console.begin_capture() with Live(console=console, auto_refresh=False) as live: display = "" for step in range(10): display += f"Step {step}\n" live.update(display, refresh=True) output = console.end_capture() assert ( output == "Step 0\nStep 1\nStep 2\nStep 3\nStep 4\nStep 5\nStep 6\nStep 7\nStep 8\nStep 9\n" ) def test_live_screen() -> None: console = create_capture_console(width=20, height=5) console.begin_capture() with Live(Text("foo"), screen=True, console=console, auto_refresh=False) as live: live.refresh() result = console.end_capture() print(repr(result)) expected = "\x1b[?1049h\x1b[H\x1b[?25l\x1b[Hfoo \n \n \n \n \x1b[Hfoo \n \n \n \n \x1b[?25h\x1b[?1049l" assert result == expected