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# -*- coding: utf-8 -*-
"""
Pygments Basic lexers tests
~~~~~~~~~~~~~~~~~~~~~~~~~~~
:copyright: Copyright 2006-2016 by the Pygments team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
import unittest
from pygments.lexers.basic import VBScriptLexer
from pygments.token import Error, Name, Number, Punctuation, String, Whitespace
class VBScriptLexerTest(unittest.TestCase):
def setUp(self):
self.lexer = VBScriptLexer()
def _assert_are_tokens_of_type(self, examples, expected_token_type):
for test_number, example in enumerate(examples.split(), 1):
token_count = 0
for token_type, token_value in self.lexer.get_tokens(example):
if token_type != Whitespace:
token_count += 1
self.assertEqual(
token_type, expected_token_type,
'token_type #%d for %s is be %s but must be %s' %
(test_number, token_value, token_type, expected_token_type))
self.assertEqual(
token_count, 1,
'%s must yield exactly 1 token instead of %d' %
(example, token_count))
def _assert_tokens_match(self, text, expected_tokens_without_trailing_newline):
actual_tokens = tuple(self.lexer.get_tokens(text))
if (len(actual_tokens) >= 1) and (actual_tokens[-1] == (Whitespace, '\n')):
actual_tokens = tuple(actual_tokens[:-1])
self.assertEqual(
expected_tokens_without_trailing_newline, actual_tokens,
'text must yield expected tokens: %s' % text)
def test_can_lex_float(self):
self._assert_are_tokens_of_type(
'1. 1.e1 .1 1.2 1.2e3 1.2e+3 1.2e-3 1e2', Number.Float)
self._assert_tokens_match(
'1e2.1e2',
((Number.Float, '1e2'), (Number.Float, '.1e2'))
)
def test_can_reject_almost_float(self):
self._assert_tokens_match(
'.e1',
((Punctuation, '.'), (Name, 'e1')))
def test_can_lex_integer(self):
self._assert_are_tokens_of_type(
'1 23 456', Number.Integer)
def test_can_lex_names(self):
self._assert_are_tokens_of_type(
u'thingy thingy123 _thingy _123', Name)
def test_can_recover_after_unterminated_string(self):
self._assert_tokens_match(
'"x\nx',
((String.Double, '"'), (String.Double, 'x'), (Error, '\n'), (Name, 'x'))
)
def test_can_recover_from_invalid_character(self):
self._assert_tokens_match(
'a;bc\nd',
((Name, 'a'), (Error, ';bc\n'), (Name, 'd'))
)
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