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import sys
import warnings
import pytest
import graphviz
from graphviz import quoting
@pytest.mark.parametrize(
'char', ['G', 'E', 'T', 'H', 'L', 'l'])
def test_deprecated_escape(recwarn, char):
warnings.simplefilter('always')
escape = eval(rf'"\{char}"')
assert len(recwarn) == 1
w = recwarn.pop(DeprecationWarning if sys.version_info < (3, 12)
else SyntaxWarning)
assert str(w.message).startswith('invalid escape sequence')
assert escape == f'\\{char}'
assert quoting.quote(escape) == f'"\\{char}"'
@pytest.mark.parametrize(
'identifier, expected',
[('"spam"', r'"\"spam\""'),
('node', '"node"'),
('EDGE', '"EDGE"'),
('Graph', '"Graph"'),
('\\G \\N \\E \\T \\H \\L', '"\\G \\N \\E \\T \\H \\L"'),
('\\n \\l \\r', '"\\n \\l \\r"'),
('\r\n', '"\r\n"'),
('\\\\n', r'"\\n"'),
('\u0665.\u0660', '"\u0665.\u0660"'),
('\\"spam', r'"\"spam"'),
('\\\\"spam', r'"\\\"spam"'),
('\\\\\\"spam', r'"\\\"spam"'),
('\\\\\\\\"spam', r'"\\\\\"spam"')])
def test_quote(identifier, expected):
assert quoting.quote(identifier) == expected
@pytest.mark.parametrize(
'attributes, expected',
[([('spam', 'eggs')], ' [spam=eggs]'),
({'spam': 'eggs'}, ' [spam=eggs]')])
def test_attr_list(attributes, expected):
assert quoting.attr_list(attributes=attributes) == expected
@pytest.mark.parametrize(
'string, expected, expected_quoted',
[('spam', 'spam', 'spam'),
('<>-*-<>', '<>-*-<>', '"<>-*-<>"')])
def test_nohtml(string, expected, expected_quoted):
result = graphviz.nohtml(string)
assert isinstance(result, str)
assert isinstance(result, quoting.NoHtml)
assert result == expected
quoted = quoting.quote(result)
assert isinstance(quoted, str)
assert quoted == expected_quoted
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