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import io
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import os.path
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import nose.tools as nt
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from IPython.utils import openpy
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mydir = os.path.dirname(__file__)
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nonascii_path = os.path.join(mydir, '../../core/tests/nonascii.py')
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def test_detect_encoding():
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f = open(nonascii_path, 'rb')
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enc, lines = openpy.detect_encoding(f.readline)
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nt.assert_equal(enc, 'iso-8859-5')
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def test_read_file():
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read_specified_enc = io.open(nonascii_path, encoding='iso-8859-5').read()
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read_detected_enc = openpy.read_py_file(nonascii_path, skip_encoding_cookie=False)
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nt.assert_equal(read_detected_enc, read_specified_enc)
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assert u'coding: iso-8859-5' in read_detected_enc
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read_strip_enc_cookie = openpy.read_py_file(nonascii_path, skip_encoding_cookie=True)
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assert u'coding: iso-8859-5' not in read_strip_enc_cookie
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def test_source_to_unicode():
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with io.open(nonascii_path, 'rb') as f:
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source_bytes = f.read()
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nt.assert_equal(openpy.source_to_unicode(source_bytes, skip_encoding_cookie=False),
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source_bytes.decode('iso-8859-5'))
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source_no_cookie = openpy.source_to_unicode(source_bytes, skip_encoding_cookie=True)
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nt.assert_not_in(u'coding: iso-8859-5', source_no_cookie)
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def test_list_readline():
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l = ['a', 'b']
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readline = openpy._list_readline(l)
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nt.assert_equal(readline(), 'a')
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nt.assert_equal(readline(), 'b')
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with nt.assert_raises(StopIteration):
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readline()
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