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"""Test sphinx.roles"""
from unittest.mock import Mock
from docutils import nodes
from sphinx.roles import EmphasizedLiteral
from sphinx.testing.util import assert_node
def test_samp():
emph_literal_role = EmphasizedLiteral()
# normal case
text = 'print 1+{variable}'
ret, msg = emph_literal_role('samp', text, text, 0, Mock())
assert_node(ret[0], [nodes.literal, ("print 1+",
[nodes.emphasis, "variable"])])
assert msg == []
# two emphasis items
text = 'print {1}+{variable}'
ret, msg = emph_literal_role('samp', text, text, 0, Mock())
assert_node(ret[0], [nodes.literal, ("print ",
[nodes.emphasis, "1"],
"+",
[nodes.emphasis, "variable"])])
assert msg == []
# empty curly brace
text = 'print 1+{}'
ret, msg = emph_literal_role('samp', text, text, 0, Mock())
assert_node(ret[0], [nodes.literal, "print 1+{}"])
assert msg == []
# half-opened variable
text = 'print 1+{variable'
ret, msg = emph_literal_role('samp', text, text, 0, Mock())
assert_node(ret[0], [nodes.literal, "print 1+{variable"])
assert msg == []
# nested
text = 'print 1+{{variable}}'
ret, msg = emph_literal_role('samp', text, text, 0, Mock())
assert_node(ret[0], [nodes.literal, ("print 1+",
[nodes.emphasis, "{variable"],
"}")])
assert msg == []
# emphasized item only
text = '{variable}'
ret, msg = emph_literal_role('samp', text, text, 0, Mock())
assert_node(ret[0], [nodes.literal, nodes.emphasis, "variable"])
assert msg == []
# escaping
text = r'print 1+\{variable}'
ret, msg = emph_literal_role('samp', text, text, 0, Mock())
assert_node(ret[0], [nodes.literal, "print 1+{variable}"])
assert msg == []
# escaping (2)
text = r'print 1+\{{variable}\}'
ret, msg = emph_literal_role('samp', text, text, 0, Mock())
assert_node(ret[0], [nodes.literal, ("print 1+{",
[nodes.emphasis, "variable"],
"}")])
assert msg == []
# escape a backslash
text = r'print 1+\\{variable}'
ret, msg = emph_literal_role('samp', text, text, 0, Mock())
assert_node(ret[0], [nodes.literal, ("print 1+\\",
[nodes.emphasis, "variable"])])
assert msg == []
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