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# coding=utf-8 
 
import pytest 
import six
 
import library.python.strings
 
 
class Convertible(object): 
    text = u'текст' 
    text_utf8 = text.encode('utf-8') 
 
    def __unicode__(self): 
        return self.text 
 
    def __str__(self): 
        return self.text_utf8 
 
 
class ConvertibleToUnicodeOnly(Convertible): 
    def __str__(self): 
        return self.text.encode('ascii') 
 
 
class ConvertibleToStrOnly(Convertible): 
    def __unicode__(self): 
        return self.text_utf8.decode('ascii') 
 
 
class NonConvertible(ConvertibleToUnicodeOnly, ConvertibleToStrOnly): 
    pass 
 
 
def test_to_basestring(): 
    assert library.python.strings.to_basestring('str') == 'str'
    assert library.python.strings.to_basestring(u'юникод') == u'юникод'
    if six.PY2:  # __str__ should return str not bytes in Python3
        assert library.python.strings.to_basestring(Convertible()) == Convertible.text
        assert library.python.strings.to_basestring(ConvertibleToUnicodeOnly()) == Convertible.text
        assert library.python.strings.to_basestring(ConvertibleToStrOnly()) == Convertible.text_utf8
        assert library.python.strings.to_basestring(NonConvertible())
 
 
def test_to_unicode(): 
    assert library.python.strings.to_unicode(u'юникод') == u'юникод'
    assert library.python.strings.to_unicode('str') == u'str'
    assert library.python.strings.to_unicode(u'строка'.encode('utf-8')) == u'строка'
    assert library.python.strings.to_unicode(u'строка'.encode('cp1251'), 'cp1251') == u'строка'
    if six.PY2:  # __str__ should return str not bytes in Python3
        assert library.python.strings.to_unicode(Convertible()) == Convertible.text
        assert library.python.strings.to_unicode(ConvertibleToUnicodeOnly()) == Convertible.text
        with pytest.raises(UnicodeDecodeError):
            library.python.strings.to_unicode(ConvertibleToStrOnly())
        with pytest.raises(UnicodeDecodeError):
            library.python.strings.to_unicode(NonConvertible())
 
 
def test_to_unicode_errors_replace(): 
    assert library.python.strings.to_unicode(u'abcабв'.encode('utf-8'), 'ascii')
    assert library.python.strings.to_unicode(u'абв'.encode('utf-8'), 'ascii')
 
 
def test_to_str(): 
    assert library.python.strings.to_str('str') == 'str' if six.PY2 else b'str'
    assert library.python.strings.to_str(u'unicode') == 'unicode' if six.PY2 else b'unicode'
    assert library.python.strings.to_str(u'юникод') == u'юникод'.encode('utf-8')
    assert library.python.strings.to_str(u'юникод', 'cp1251') == u'юникод'.encode('cp1251')
    if six.PY2:
        assert library.python.strings.to_str(Convertible()) == Convertible.text_utf8
        with pytest.raises(UnicodeEncodeError):
            library.python.strings.to_str(ConvertibleToUnicodeOnly())
        assert library.python.strings.to_str(ConvertibleToStrOnly()) == Convertible.text_utf8
        with pytest.raises(UnicodeEncodeError):
            library.python.strings.to_str(NonConvertible())
 
 
def test_to_str_errors_replace(): 
    assert library.python.strings.to_str(u'abcабв', 'ascii')
    assert library.python.strings.to_str(u'абв', 'ascii')
 
 
def test_to_str_transcode(): 
    assert library.python.strings.to_str('str', from_enc='ascii') == 'str' if six.PY2 else b'str'
    assert library.python.strings.to_str('str', from_enc='utf-8') == 'str' if six.PY2 else b'str'
 
    assert library.python.strings.to_str(u'юникод'.encode('utf-8'), from_enc='utf-8') == u'юникод'.encode('utf-8')
    assert library.python.strings.to_str(u'юникод'.encode('utf-8'), to_enc='utf-8', from_enc='utf-8') == u'юникод'.encode('utf-8')
    assert library.python.strings.to_str(u'юникод'.encode('utf-8'), to_enc='cp1251', from_enc='utf-8') == u'юникод'.encode('cp1251')
 
    assert library.python.strings.to_str(u'юникод'.encode('cp1251'), from_enc='cp1251') == u'юникод'.encode('utf-8')
    assert library.python.strings.to_str(u'юникод'.encode('cp1251'), to_enc='cp1251', from_enc='cp1251') == u'юникод'.encode('cp1251')
    assert library.python.strings.to_str(u'юникод'.encode('cp1251'), to_enc='utf-8', from_enc='cp1251') == u'юникод'.encode('utf-8')
 
    assert library.python.strings.to_str(u'юникод'.encode('koi8-r'), from_enc='koi8-r') == u'юникод'.encode('utf-8')
    assert library.python.strings.to_str(u'юникод'.encode('koi8-r'), to_enc='koi8-r', from_enc='koi8-r') == u'юникод'.encode('koi8-r')
    assert library.python.strings.to_str(u'юникод'.encode('koi8-r'), to_enc='cp1251', from_enc='koi8-r') == u'юникод'.encode('cp1251')
 
 
def test_to_str_transcode_wrong(): 
    assert library.python.strings.to_str(u'юникод'.encode('utf-8'), from_enc='cp1251')
    assert library.python.strings.to_str(u'юникод'.encode('cp1251'), from_enc='utf-8')
 
 
def test_to_str_transcode_disabled(): 
    # No transcoding enabled, set from_enc to enable 
    assert library.python.strings.to_str(u'юникод'.encode('utf-8'), to_enc='utf-8') == u'юникод'.encode('utf-8')
    assert library.python.strings.to_str(u'юникод'.encode('utf-8'), to_enc='cp1251') == u'юникод'.encode('utf-8')
    assert library.python.strings.to_str(u'юникод'.encode('cp1251'), to_enc='utf-8') == u'юникод'.encode('cp1251')
    assert library.python.strings.to_str(u'юникод'.encode('cp1251'), to_enc='cp1251') == u'юникод'.encode('cp1251')
    assert library.python.strings.to_str(u'юникод'.encode('cp1251'), to_enc='koi8-r') == u'юникод'.encode('cp1251')
    assert library.python.strings.to_str(u'юникод'.encode('koi8-r'), to_enc='cp1251') == u'юникод'.encode('koi8-r')
 
 
def test_stringize_deep(): 
    assert library.python.strings.stringize_deep({
        'key 1': 'value 1', 
        u'ключ 2': u'значение 2', 
        'list': [u'ключ 2', 'key 1', (u'к', 2)]
    }) == { 
        'key 1' if six.PY2 else b'key 1': 'value 1' if six.PY2 else b'value 1',
        u'ключ 2'.encode('utf-8'): u'значение 2'.encode('utf-8'), 
        'list' if six.PY2 else b'list': [u'ключ 2'.encode('utf-8'), 'key 1' if six.PY2 else b'key 1', (u'к'.encode('utf-8'), 2)]
    } 
 
 
def test_stringize_deep_doesnt_transcode(): 
    assert library.python.strings.stringize_deep({
        u'ключ 1'.encode('utf-8'): u'значение 1'.encode('utf-8'), 
        u'ключ 2'.encode('cp1251'): u'значение 2'.encode('cp1251'), 
    }) == { 
        u'ключ 1'.encode('utf-8'): u'значение 1'.encode('utf-8'), 
        u'ключ 2'.encode('cp1251'): u'значение 2'.encode('cp1251'), 
    } 
 
 
def test_stringize_deep_nested(): 
    assert library.python.strings.stringize_deep({
        'key 1': 'value 1', 
        u'ключ 2': { 
            'subkey 1': 'value 1', 
            u'подключ 2': u'value 2', 
        }, 
    }) == { 
        'key 1' if six.PY2 else b'key 1': 'value 1' if six.PY2 else b'value 1',
        u'ключ 2'.encode('utf-8'): { 
            'subkey 1' if six.PY2 else b'subkey 1': 'value 1' if six.PY2 else b'value 1',
            u'подключ 2'.encode('utf-8'): u'value 2'.encode('utf-8'), 
        }, 
    } 
 
 
def test_stringize_deep_plain(): 
    assert library.python.strings.stringize_deep('str') == 'str' if six.PY2 else b'str'
    assert library.python.strings.stringize_deep(u'юникод') == u'юникод'.encode('utf-8')
    assert library.python.strings.stringize_deep(u'юникод'.encode('utf-8')) == u'юникод'.encode('utf-8')
 
 
def test_stringize_deep_nonstr(): 
    with pytest.raises(TypeError): 
        library.python.strings.stringize_deep(Convertible(), relaxed=False)
    x = Convertible()
    assert x == library.python.strings.stringize_deep(x)
 
 
def test_unicodize_deep(): 
    assert library.python.strings.unicodize_deep({
        'key 1': 'value 1', 
        u'ключ 2': u'значение 2', 
        u'ключ 3'.encode('utf-8'): u'значение 3'.encode('utf-8'), 
    }) == { 
        u'key 1': u'value 1', 
        u'ключ 2': u'значение 2', 
        u'ключ 3': u'значение 3', 
    } 
 
 
def test_unicodize_deep_nested(): 
    assert library.python.strings.unicodize_deep({
        'key 1': 'value 1', 
        u'ключ 2': { 
            'subkey 1': 'value 1', 
            u'подключ 2': u'значение 2', 
            u'подключ 3'.encode('utf-8'): u'значение 3'.encode('utf-8'), 
        }, 
    }) == { 
        u'key 1': u'value 1', 
        u'ключ 2': { 
            u'subkey 1': u'value 1', 
            u'подключ 2': u'значение 2', 
            u'подключ 3': u'значение 3', 
        }, 
    } 
 
 
def test_unicodize_deep_plain(): 
    assert library.python.strings.unicodize_deep('str') == u'str'
    assert library.python.strings.unicodize_deep(u'юникод') == u'юникод'
    assert library.python.strings.unicodize_deep(u'юникод'.encode('utf-8')) == u'юникод'
 
 
def test_unicodize_deep_nonstr(): 
    with pytest.raises(TypeError): 
        library.python.strings.unicodize_deep(Convertible(), relaxed=False)
    x = Convertible()
    assert x == library.python.strings.stringize_deep(x)