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#!/usr/bin/env python
# Copyright (c) 2012 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Tests for strip_js_comments module."""
import unittest
from py_vulcanize import strip_js_comments
# This test case tests a protected method.
# pylint: disable=W0212
class JavaScriptStripCommentTests(unittest.TestCase):
"""Test case for _strip_js_comments and _TokenizeJS."""
def test_strip_comments(self):
self.assertEquals(
'A ', strip_js_comments.StripJSComments('A // foo'))
self.assertEquals(
'A bar', strip_js_comments.StripJSComments('A // foo\nbar'))
self.assertEquals(
'A b', strip_js_comments.StripJSComments('A /* foo */ b'))
self.assertEquals(
'A b', strip_js_comments.StripJSComments('A /* foo\n */ b'))
def test_tokenize_empty(self):
tokens = list(strip_js_comments._TokenizeJS(''))
self.assertEquals([], tokens)
def test_tokenize_nl(self):
tokens = list(strip_js_comments._TokenizeJS('\n'))
self.assertEquals(['\n'], tokens)
def test_tokenize_slashslash_comment(self):
tokens = list(strip_js_comments._TokenizeJS('A // foo'))
self.assertEquals(['A ', '//', ' foo'], tokens)
def test_tokenize_slashslash_comment_then_newline(self):
tokens = list(strip_js_comments._TokenizeJS('A // foo\nbar'))
self.assertEquals(['A ', '//', ' foo', '\n', 'bar'], tokens)
def test_tokenize_cstyle_comment_one_line(self):
tokens = list(strip_js_comments._TokenizeJS('A /* foo */'))
self.assertEquals(['A ', '/*', ' foo ', '*/'], tokens)
def test_tokenize_cstyle_comment_multi_line(self):
tokens = list(strip_js_comments._TokenizeJS('A /* foo\n*bar\n*/'))
self.assertEquals(['A ', '/*', ' foo', '\n', '*bar', '\n', '*/'], tokens)
if __name__ == '__main__':
unittest.main()
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