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51 lines
1.5 KiB
Python
51 lines
1.5 KiB
Python
import pytest
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from rich.text import Text
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from tests.utilities.render import render
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from textual.renderables.opacity import Opacity
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STOP = "\x1b[0m"
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@pytest.fixture
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def text():
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return Text("Hello, world!", style="#ff0000 on #00ff00", end="")
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def test_simple_opacity(text):
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blended_red_on_green = "\x1b[38;2;127;127;0;48;2;0;255;0m"
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assert render(Opacity(text, value=.5)) == (
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f"{blended_red_on_green}Hello, world!{STOP}"
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)
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def test_value_zero_sets_foreground_color_to_background_color(text):
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foreground = background = "0;255;0"
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assert render(Opacity(text, value=0)) == (
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f"\x1b[38;2;{foreground};48;2;{background}mHello, world!{STOP}"
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)
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def test_opacity_value_of_one_noop(text):
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assert render(Opacity(text, value=1)) == render(text)
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def test_ansi_colors_noop():
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ansi_colored_text = Text("Hello, world!", style="red on green", end="")
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assert render(Opacity(ansi_colored_text, value=.5)) == render(ansi_colored_text)
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def test_opacity_no_style_noop():
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text_no_style = Text("Hello, world!", end="")
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assert render(Opacity(text_no_style, value=.2)) == render(text_no_style)
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def test_opacity_only_fg_noop():
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text_only_fg = Text("Hello, world!", style="#ff0000", end="")
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assert render(Opacity(text_only_fg, value=.5)) == render(text_only_fg)
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def test_opacity_only_bg_noop():
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text_only_bg = Text("Hello, world!", style="on #ff0000", end="")
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assert render(Opacity(text_only_bg, value=.5)) == render(text_only_bg)
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