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"""
Tests for the HTML5 color algorithms.
"""
# SPDX-License-Identifier: BSD-3-Claus
# pylint: disable=protected-access
import re
import pytest
import webcolors
@pytest.mark.parametrize(
["raw", "parsed"],
[
("#ffffff", (255, 255, 255)),
("#000080", (0, 0, 128)),
("#daa520", (218, 165, 32)),
],
ids=["white", "navy", "goldenrod"],
)
def test_parse_simple_color(raw: str, parsed: webcolors.IntTuple):
"""
Test implementation of the HTML5 simple color parsing algorithm.
"""
result = webcolors.html5_parse_simple_color(raw)
assert isinstance(result, webcolors.HTML5SimpleColor)
assert parsed == result
@pytest.mark.parametrize(
["value", "match"],
[
(
"0099ccc",
re.escape(
"An HTML5 simple color must begin with the character '#' (U+0023)"
),
),
(
"#09c",
"An HTML5 simple color must be a Unicode string seven characters long",
),
(
"#0000",
"An HTML5 simple color must be a Unicode string seven characters long",
),
(
"#0000000",
"An HTML5 simple color must be a Unicode string seven characters long",
),
("#0000gg", "An HTML5 simple color must contain exactly six ASCII hex digits"),
(
"#000000".encode("ascii"),
"An HTML5 simple color must be a Unicode string seven characters long",
),
],
ids=[
"too-long-no-hash",
"three-digit",
"four-digit",
"too-long",
"not-hex",
"not-unicode",
],
)
def test_parse_simple_color_error(value: str, match: str):
"""
Test error conditions of the HTML5 simple color parsing algorithm.
"""
with pytest.raises(ValueError, match=match):
webcolors.html5_parse_simple_color(value)
@pytest.mark.parametrize(
["raw", "serialized"],
[
((0, 0, 0), "#000000"),
((0, 0, 128), "#000080"),
((218, 165, 32), "#daa520"),
(webcolors.IntegerRGB(218, 165, 32), "#daa520"),
(webcolors.HTML5SimpleColor(218, 165, 32), "#daa520"),
],
ids=["black", "navy", "goldenrod", "goldenrod-integerrgb", "goldenrod-html5tuple"],
)
def test_serialize_simple_color(raw: webcolors.IntTuple, serialized: str):
"""
Test implementation of the HTML5 simple color serialization algorithm.
"""
assert serialized == webcolors.html5_serialize_simple_color(raw)
@pytest.mark.parametrize(
["raw", "parsed"],
[
("chucknorris", (192, 0, 0)),
("Window", (0, 13, 0)),
("RE|SXLuAse", (224, 0, 224)),
("+=@FnnWL!Yb}5Dk", (0, 0, 176)),
("A" * 129, (170, 170, 170)),
],
ids=["chucknorris", "system-color", "junk1", "junk2", "junk3"],
)
def test_parse_legacy_color(raw: str, parsed: webcolors.IntTuple):
"""
Test implementation of the HTML5 legacy color parsing algorithm.
"""
result = webcolors.html5_parse_legacy_color(raw)
assert isinstance(result, webcolors.HTML5SimpleColor)
assert parsed == result
@pytest.mark.parametrize("name", webcolors._definitions._CSS3_NAMES_TO_HEX)
def test_parse_legacy_color_names(name: str):
"""
Test the HTML5 legacy color parsing of SVG/CSS3 color names.
"""
assert webcolors.html5_parse_legacy_color(name) == webcolors.name_to_rgb(name)
@pytest.mark.parametrize(
"value",
["#000", "#000000", "#fff", "#ffffff", "#000080"],
ids=[
"three-digit-black",
"six-digit-black",
"three-digit-white",
"six-digit-white",
"navy",
],
)
def test_parse_legacy_color_hex(value: str):
"""
Test the HTML5 legacy color parsing of three- and six-digit hexadecimal
color values.
"""
assert webcolors.html5_parse_legacy_color(value) == webcolors.hex_to_rgb(value)
@pytest.mark.parametrize(
["value", "match"],
[
(
"#000000".encode("ascii"),
"HTML5 legacy color parsing requires a Unicode string as input.",
),
("transparent", 'HTML5 legacy color parsing forbids "transparent" as a value.'),
("", "HTML5 legacy color parsing forbids empty string as a value."),
],
ids=["non-unicode", "transparent", "empty"],
)
def test_parse_legacy_color_error(value: str, match: str):
"""
Test error conditions of the HTML5 legacy color parsing algorithm.
"""
with pytest.raises(ValueError, match=match):
webcolors.html5_parse_legacy_color(value)
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