beefcarver
ec2ca72efb
A ladder is a hue walk, not a brightness walk, so painting the hot end backwards put the dim colour at the corner. Sort the ramp by stock brightness and follow the pane height for the bottom-left glow.
260 lines
8.8 KiB
Python
260 lines
8.8 KiB
Python
"""The colour palettes: sixteen ladders of ANSI names, and the `c` key."""
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from __future__ import annotations
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import html
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import re
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import pytest
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from beefy_player import config
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from beefy_player.app import BeefyPlayerApp
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from beefy_player.palettes import (
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DEFAULT_PALETTE,
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PALETTE_ORDER,
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PALETTES,
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brightness,
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palette_stops,
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)
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from beefy_player.widgets import frame
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from beefy_player.widgets.help import HelpScreen
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from beefy_player.widgets.station_list import StationList
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ANSI_NAMES = {
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"black",
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"red",
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"green",
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"yellow",
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"blue",
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"magenta",
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"cyan",
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"white",
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"bright_black",
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"bright_red",
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"bright_green",
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"bright_yellow",
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"bright_blue",
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"bright_magenta",
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"bright_cyan",
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"bright_white",
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}
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def test_there_are_sixteen_palettes_of_ansi_names() -> None:
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assert len(PALETTES) == 16
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assert len(PALETTE_ORDER) == 16
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assert len(set(PALETTE_ORDER)) == 16
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assert DEFAULT_PALETTE in PALETTES
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for name, stops in PALETTES.items():
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assert len(stops) >= 3, name
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assert set(stops) <= ANSI_NAMES, (name, set(stops) - ANSI_NAMES)
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# a ladder, not a list: the quiet end must differ from the hot end
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assert stops[0] != stops[-1], name
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def test_a_broken_palette_name_falls_back_to_the_default() -> None:
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assert palette_stops("mono") == PALETTES["mono"]
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assert palette_stops(" MONO ") == PALETTES["mono"]
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assert palette_stops("no-such-palette") == PALETTES[DEFAULT_PALETTE]
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assert palette_stops(None) == PALETTES[DEFAULT_PALETTE]
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def test_the_config_remembers_the_palette() -> None:
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assert config.Config.load().palette == DEFAULT_PALETTE
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config.Config(palette="ember").save()
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assert config.Config.load().palette == "ember"
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def test_an_unknown_palette_in_the_config_is_ignored() -> None:
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config.CONFIG_PATH.parent.mkdir(parents=True, exist_ok=True)
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config.CONFIG_PATH.write_text('{"palette": "chartreuse"}')
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assert config.Config.load().palette == DEFAULT_PALETTE
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@pytest.mark.asyncio
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async def test_the_c_key_cycles_and_remembers_the_palette() -> None:
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app = BeefyPlayerApp(autoplay=False, offline=True, audio=False)
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async with app.run_test(size=(100, 30)) as pilot:
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await pilot.pause()
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start = app.palette
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assert start == DEFAULT_PALETTE
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await pilot.press("c")
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await pilot.pause()
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expected = PALETTE_ORDER[(PALETTE_ORDER.index(start) + 1) % len(PALETTE_ORDER)]
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assert app.palette == expected
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assert app.config.palette == expected
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assert "palette" in app.notice
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# the choice survives a restart
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config.Config(palette=app.palette).save()
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assert config.Config.load().palette == expected
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@pytest.mark.asyncio
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async def test_the_pane_corners_follow_the_palette() -> None:
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app = BeefyPlayerApp(autoplay=False, offline=True, audio=False)
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async with app.run_test(size=(100, 30)) as pilot:
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await pilot.pause()
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pane = app.query_one(StationList)
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app.palette = "mono"
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mono = [str(span.style) for span in pane.render().renderables[0].spans]
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app.palette = "ember"
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ember = [str(span.style) for span in pane.render().renderables[0].spans]
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assert mono != ember
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assert any("bright_white" in style for style in mono)
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# ember's hot end is white too, but its quiet end is not
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assert any(PALETTES["ember"][-2] in style for style in ember)
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@pytest.mark.asyncio
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async def test_the_spectrum_rows_use_the_active_palette() -> None:
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app = BeefyPlayerApp(autoplay=False, offline=True, audio=False)
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async with app.run_test(size=(100, 30)) as pilot:
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await pilot.pause()
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spectrum = app.query_one("SpectrumPanel")
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def colours(styles: list[str]) -> set[str]:
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return {
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style.replace("dim ", "").replace("bold ", "").strip()
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for style in styles
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}
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app.palette = "mono"
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spectrum.refresh()
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await pilot.pause()
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assert colours(spectrum._row_palette(12, 0, False)) <= set(PALETTES["mono"])
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app.palette = "neon"
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spectrum.refresh()
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await pilot.pause()
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assert colours(spectrum._row_palette(12, 0, False)) <= set(PALETTES["neon"])
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def test_the_corner_fade_starts_at_the_brightest_stop() -> None:
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stops = PALETTES["spectrum"]
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ramp = frame.fade_ramp(stops)
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assert frame.corner_fade(0, stops) == ramp[0]
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assert frame.corner_fade(1, stops) == ramp[1]
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# the fade is short: past the ramp it is just the border grey
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assert frame.corner_fade(len(ramp), stops) == frame.EDGE
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# spectrum's hot end is red, which is dimmer than the yellow before it;
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# the corner still gets the bright colour
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assert ramp[0] != stops[-1]
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assert ramp[-1] == stops[-1]
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def test_every_palette_fades_from_bright_to_dim() -> None:
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"""No palette may put a brighter cell further from the corner."""
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for name, stops in PALETTES.items():
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ramp = frame.fade_ramp(stops)
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assert ramp, name
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ranks = [brightness(colour) for colour in ramp]
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assert ranks == sorted(ranks, reverse=True), (name, ramp)
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assert set(ramp) <= set(stops), name
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@pytest.mark.asyncio
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async def test_the_help_scrolls_when_the_terminal_is_short() -> None:
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"""The help page is ~56 rows: it must be readable on a 24-row screen."""
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app = BeefyPlayerApp(autoplay=False, offline=True, audio=False)
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async with app.run_test(size=(80, 24)) as pilot:
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await pilot.pause()
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await pilot.press("question_mark")
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await pilot.pause()
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body = app.screen.query_one("#help")
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assert body.size.height < body.virtual_size.height
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assert body.max_scroll_y > 0
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assert body.scroll_y == 0
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await pilot.press("pagedown")
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await pilot.pause()
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assert body.scroll_y > 0
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await pilot.press("end")
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await pilot.pause()
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assert body.scroll_y == body.max_scroll_y
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await pilot.press("home")
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await pilot.pause()
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assert body.scroll_y == 0
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await pilot.press("x")
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await pilot.pause()
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assert not isinstance(app.screen, HelpScreen)
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@pytest.mark.asyncio
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async def test_a_tall_terminal_needs_no_scrolling() -> None:
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app = BeefyPlayerApp(autoplay=False, offline=True, audio=False)
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async with app.run_test(size=(120, 70)) as pilot:
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await pilot.pause()
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await pilot.press("question_mark")
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await pilot.pause()
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body = app.screen.query_one("#help")
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assert body.max_scroll_y == 0
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@pytest.mark.asyncio
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async def test_the_help_lists_every_palette_and_marks_the_active_one() -> None:
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app = BeefyPlayerApp(autoplay=False, offline=True, audio=False)
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async with app.run_test(size=(120, 64)) as pilot:
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await pilot.pause()
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app.palette = "ocean"
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await pilot.press("question_mark")
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await pilot.pause()
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text = html.unescape(app.export_screenshot()).replace("\xa0", " ")
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text = re.sub(r"<[^>]+>", "", text)
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assert "PALETTES" in text
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assert "c cycles them" in text
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for name in PALETTE_ORDER:
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assert name in text, name
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assert "● ocean" in text
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# each palette shows a swatch of eight blocks
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assert "████████" in text
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@pytest.mark.asyncio
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async def test_the_help_footer_attributes_the_build() -> None:
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"""One line: the version and the project URL — no credits essay."""
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from beefy_player import __version__
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app = BeefyPlayerApp(autoplay=False, offline=True, audio=False)
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async with app.run_test(size=(110, 70)) as pilot:
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await pilot.pause()
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await pilot.press("question_mark")
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await pilot.pause()
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body = app.screen.query_one("#help")
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body.scroll_end(animate=False)
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await pilot.pause()
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text = html.unescape(app.export_screenshot()).replace("\xa0", " ")
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text = re.sub(r"<[^>]+>", "", text)
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assert f"beefy player {__version__}" in text
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assert "https://tildeforge.dev/beefcarver/beefy-player" in text
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# the old explanatory blurb is gone
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assert "playerctl" not in text
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assert "parec" not in text
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assert "Stations and song history come from" not in text
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@pytest.mark.parametrize("slug", ["bassdrive", "somafm"])
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@pytest.mark.asyncio
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async def test_the_help_has_no_pane_explainer(slug: str) -> None:
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"""No catalogue gets a paragraph about its left pane."""
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app = BeefyPlayerApp(provider=slug, autoplay=False, offline=True, audio=False)
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async with app.run_test(size=(110, 60)) as pilot:
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await pilot.pause()
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await pilot.press("question_mark")
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await pilot.pause()
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text = html.unescape(app.export_screenshot()).replace("\xa0", " ")
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text = re.sub(r"<[^>]+>", "", text)
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assert "is a single stream" not in text
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assert "multi-station catalogues" not in text
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assert "CATALOGUES" in text
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