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50 lines
1.9 KiB
Python
50 lines
1.9 KiB
Python
from contextlib import nullcontext as does_not_raise
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import pytest
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from textual.color import Color
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from textual.css.stylesheet import Stylesheet, StylesheetParseError
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from textual.css.tokenizer import TokenizeError
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@pytest.mark.parametrize(
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"css_value,expectation,expected_color",
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[
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# Valid values:
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["red", does_not_raise(), Color(128, 0, 0)],
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["dark_cyan", does_not_raise(), Color(0, 175, 135)],
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["medium_turquoise", does_not_raise(), Color(95, 215, 215)],
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["turquoise4", does_not_raise(), Color(0, 135, 135)],
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["#ffcc00", does_not_raise(), Color(255, 204, 0)],
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["#ffcc0033", does_not_raise(), Color(255, 204, 0, 0.2)],
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["rgb(200,90,30)", does_not_raise(), Color(200, 90, 30)],
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["rgba(200,90,30,0.3)", does_not_raise(), Color(200, 90, 30, 0.3)],
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# Some invalid ones:
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["coffee", pytest.raises(StylesheetParseError), None], # invalid color name
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["turquoise10", pytest.raises(StylesheetParseError), None],
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["turquoise 4", pytest.raises(StylesheetParseError), None], # space in it
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["1", pytest.raises(StylesheetParseError), None], # invalid value
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["()", pytest.raises(TokenizeError), None], # invalid tokens
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# TODO: implement hex colors with 3 chars? @link https://devdocs.io/css/color_value
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["#09f", pytest.raises(TokenizeError), None],
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# TODO: allow spaces in rgb/rgba expressions?
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["rgb(200, 90, 30)", pytest.raises(TokenizeError), None],
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["rgba(200,90,30, 0.4)", pytest.raises(TokenizeError), None],
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],
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)
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def test_color_property_parsing(css_value, expectation, expected_color):
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stylesheet = Stylesheet()
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css = """
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* {
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background: ${COLOR};
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}
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""".replace(
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"${COLOR}", css_value
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)
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with expectation:
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stylesheet.add_source(css)
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if expected_color:
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css_rule = stylesheet.rules[0]
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assert css_rule.styles.background == expected_color
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