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"""Test lexers module"""
# Copyright (c) IPython Development Team.
# Distributed under the terms of the Modified BSD License.
from unittest import TestCase
from pygments import __version__ as pygments_version
from pygments.token import Token
from pygments.lexers import BashLexer
from .. import lexers
pyg214 = tuple(int(x) for x in pygments_version.split(".")[:2]) >= (2, 14)
class TestLexers(TestCase):
"""Collection of lexers tests"""
def setUp(self):
self.lexer = lexers.IPythonLexer()
self.bash_lexer = BashLexer()
def testIPythonLexer(self):
fragment = '!echo $HOME\n'
bash_tokens = [
(Token.Operator, '!'),
]
bash_tokens.extend(self.bash_lexer.get_tokens(fragment[1:]))
ipylex_token = list(self.lexer.get_tokens(fragment))
assert bash_tokens[:-1] == ipylex_token[:-1]
fragment_2 = "!" + fragment
tokens_2 = [
(Token.Operator, '!!'),
] + bash_tokens[1:]
assert tokens_2[:-1] == list(self.lexer.get_tokens(fragment_2))[:-1]
fragment_2 = '\t %%!\n' + fragment[1:]
tokens_2 = [
(Token.Text, '\t '),
(Token.Operator, '%%!'),
(Token.Text, '\n'),
] + bash_tokens[1:]
assert tokens_2 == list(self.lexer.get_tokens(fragment_2))
fragment_2 = 'x = ' + fragment
tokens_2 = [
(Token.Name, 'x'),
(Token.Text, ' '),
(Token.Operator, '='),
(Token.Text, ' '),
] + bash_tokens
assert tokens_2[:-1] == list(self.lexer.get_tokens(fragment_2))[:-1]
fragment_2 = 'x, = ' + fragment
tokens_2 = [
(Token.Name, 'x'),
(Token.Punctuation, ','),
(Token.Text, ' '),
(Token.Operator, '='),
(Token.Text, ' '),
] + bash_tokens
assert tokens_2[:-1] == list(self.lexer.get_tokens(fragment_2))[:-1]
fragment_2 = 'x, = %sx ' + fragment[1:]
tokens_2 = [
(Token.Name, 'x'),
(Token.Punctuation, ','),
(Token.Text, ' '),
(Token.Operator, '='),
(Token.Text, ' '),
(Token.Operator, '%'),
(Token.Keyword, 'sx'),
(Token.Text, ' '),
] + bash_tokens[1:]
if tokens_2[7] == (Token.Text, " ") and pyg214: # pygments 2.14+
tokens_2[7] = (Token.Text.Whitespace, " ")
assert tokens_2[:-1] == list(self.lexer.get_tokens(fragment_2))[:-1]
fragment_2 = 'f = %R function () {}\n'
tokens_2 = [
(Token.Name, 'f'),
(Token.Text, ' '),
(Token.Operator, '='),
(Token.Text, ' '),
(Token.Operator, '%'),
(Token.Keyword, 'R'),
(Token.Text, ' function () {}\n'),
]
assert tokens_2 == list(self.lexer.get_tokens(fragment_2))
fragment_2 = '\t%%xyz\n$foo\n'
tokens_2 = [
(Token.Text, '\t'),
(Token.Operator, '%%'),
(Token.Keyword, 'xyz'),
(Token.Text, '\n$foo\n'),
]
assert tokens_2 == list(self.lexer.get_tokens(fragment_2))
fragment_2 = '%system?\n'
tokens_2 = [
(Token.Operator, '%'),
(Token.Keyword, 'system'),
(Token.Operator, '?'),
(Token.Text, '\n'),
]
assert tokens_2[:-1] == list(self.lexer.get_tokens(fragment_2))[:-1]
fragment_2 = 'x != y\n'
tokens_2 = [
(Token.Name, 'x'),
(Token.Text, ' '),
(Token.Operator, '!='),
(Token.Text, ' '),
(Token.Name, 'y'),
(Token.Text, '\n'),
]
assert tokens_2[:-1] == list(self.lexer.get_tokens(fragment_2))[:-1]
fragment_2 = ' ?math.sin\n'
tokens_2 = [
(Token.Text, ' '),
(Token.Operator, '?'),
(Token.Text, 'math.sin'),
(Token.Text, '\n'),
]
assert tokens_2[:-1] == list(self.lexer.get_tokens(fragment_2))[:-1]
fragment = ' *int*?\n'
tokens = [
(Token.Text, ' *int*'),
(Token.Operator, '?'),
(Token.Text, '\n'),
]
assert tokens == list(self.lexer.get_tokens(fragment))
fragment = '%%writefile -a foo.py\nif a == b:\n pass'
tokens = [
(Token.Operator, '%%writefile'),
(Token.Text, ' -a foo.py\n'),
(Token.Keyword, 'if'),
(Token.Text, ' '),
(Token.Name, 'a'),
(Token.Text, ' '),
(Token.Operator, '=='),
(Token.Text, ' '),
(Token.Name, 'b'),
(Token.Punctuation, ':'),
(Token.Text, '\n'),
(Token.Text, ' '),
(Token.Keyword, 'pass'),
(Token.Text, '\n'),
]
if tokens[10] == (Token.Text, "\n") and pyg214: # pygments 2.14+
tokens[10] = (Token.Text.Whitespace, "\n")
assert tokens[:-1] == list(self.lexer.get_tokens(fragment))[:-1]
fragment = '%%timeit\nmath.sin(0)'
tokens = [
(Token.Operator, '%%timeit\n'),
(Token.Name, 'math'),
(Token.Operator, '.'),
(Token.Name, 'sin'),
(Token.Punctuation, '('),
(Token.Literal.Number.Integer, '0'),
(Token.Punctuation, ')'),
(Token.Text, '\n'),
]
fragment = '%%HTML\n<div>foo</div>'
tokens = [
(Token.Operator, '%%HTML'),
(Token.Text, '\n'),
(Token.Punctuation, '<'),
(Token.Name.Tag, 'div'),
(Token.Punctuation, '>'),
(Token.Text, 'foo'),
(Token.Punctuation, '<'),
(Token.Punctuation, '/'),
(Token.Name.Tag, 'div'),
(Token.Punctuation, '>'),
(Token.Text, '\n'),
]
assert tokens == list(self.lexer.get_tokens(fragment))
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