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1
2import yaml
3import codecs, io, tempfile, os, os.path
4
5def test_unicode_input(unicode_filename, verbose=False):
6    data = open(unicode_filename, 'rb').read().decode('utf-8')
7    value = ' '.join(data.split())
8    output = yaml.full_load(data)
9    assert output == value, (output, value)
10    output = yaml.full_load(io.StringIO(data))
11    assert output == value, (output, value)
12    for input in [data.encode('utf-8'),
13                    codecs.BOM_UTF8+data.encode('utf-8'),
14                    codecs.BOM_UTF16_BE+data.encode('utf-16-be'),
15                    codecs.BOM_UTF16_LE+data.encode('utf-16-le')]:
16        if verbose:
17            print("INPUT:", repr(input[:10]), "...")
18        output = yaml.full_load(input)
19        assert output == value, (output, value)
20        output = yaml.full_load(io.BytesIO(input))
21        assert output == value, (output, value)
22
23test_unicode_input.unittest = ['.unicode']
24
25def test_unicode_input_errors(unicode_filename, verbose=False):
26    data = open(unicode_filename, 'rb').read().decode('utf-8')
27    for input in [data.encode('utf-16-be'),
28            data.encode('utf-16-le'),
29            codecs.BOM_UTF8+data.encode('utf-16-be'),
30            codecs.BOM_UTF8+data.encode('utf-16-le')]:
31
32        try:
33            yaml.full_load(input)
34        except yaml.YAMLError as exc:
35            if verbose:
36                print(exc)
37        else:
38            raise AssertionError("expected an exception")
39        try:
40            yaml.full_load(io.BytesIO(input))
41        except yaml.YAMLError as exc:
42            if verbose:
43                print(exc)
44        else:
45            raise AssertionError("expected an exception")
46
47test_unicode_input_errors.unittest = ['.unicode']
48
49def test_unicode_output(unicode_filename, verbose=False):
50    data = open(unicode_filename, 'rb').read().decode('utf-8')
51    value = ' '.join(data.split())
52    for allow_unicode in [False, True]:
53        data1 = yaml.dump(value, allow_unicode=allow_unicode)
54        for encoding in [None, 'utf-8', 'utf-16-be', 'utf-16-le']:
55            stream = io.StringIO()
56            yaml.dump(value, stream, encoding=encoding, allow_unicode=allow_unicode)
57            data2 = stream.getvalue()
58            data3 = yaml.dump(value, encoding=encoding, allow_unicode=allow_unicode)
59            if encoding is not None:
60                assert isinstance(data3, bytes)
61                data3 = data3.decode(encoding)
62            stream = io.BytesIO()
63            if encoding is None:
64                try:
65                    yaml.dump(value, stream, encoding=encoding, allow_unicode=allow_unicode)
66                except TypeError as exc:
67                    if verbose:
68                        print(exc)
69                    data4 = None
70                else:
71                    raise AssertionError("expected an exception")
72            else:
73                yaml.dump(value, stream, encoding=encoding, allow_unicode=allow_unicode)
74                data4 = stream.getvalue()
75                if verbose:
76                    print("BYTES:", data4[:50])
77                data4 = data4.decode(encoding)
78
79            assert isinstance(data1, str), (type(data1), encoding)
80            assert isinstance(data2, str), (type(data2), encoding)
81
82test_unicode_output.unittest = ['.unicode']
83
84def test_file_output(unicode_filename, verbose=False):
85    data = open(unicode_filename, 'rb').read().decode('utf-8')
86    handle, filename = tempfile.mkstemp()
87    os.close(handle)
88    try:
89        stream = io.StringIO()
90        yaml.dump(data, stream, allow_unicode=True)
91        data1 = stream.getvalue()
92        stream = io.BytesIO()
93        yaml.dump(data, stream, encoding='utf-16-le', allow_unicode=True)
94        data2 = stream.getvalue().decode('utf-16-le')[1:]
95        stream = open(filename, 'w', encoding='utf-16-le')
96        yaml.dump(data, stream, allow_unicode=True)
97        stream.close()
98        data3 = open(filename, 'r', encoding='utf-16-le').read()
99        stream = open(filename, 'wb')
100        yaml.dump(data, stream, encoding='utf-8', allow_unicode=True)
101        stream.close()
102        data4 = open(filename, 'r', encoding='utf-8').read()
103        assert data1 == data2, (data1, data2)
104        assert data1 == data3, (data1, data3)
105        assert data1 == data4, (data1, data4)
106    finally:
107        if os.path.exists(filename):
108            os.unlink(filename)
109
110test_file_output.unittest = ['.unicode']
111
112def test_unicode_transfer(unicode_filename, verbose=False):
113    data = open(unicode_filename, 'rb').read().decode('utf-8')
114    for encoding in [None, 'utf-8', 'utf-16-be', 'utf-16-le']:
115        input = data
116        if encoding is not None:
117            input = ('\ufeff'+input).encode(encoding)
118        output1 = yaml.emit(yaml.parse(input), allow_unicode=True)
119        if encoding is None:
120            stream = io.StringIO()
121        else:
122            stream = io.BytesIO()
123        yaml.emit(yaml.parse(input), stream, allow_unicode=True)
124        output2 = stream.getvalue()
125        assert isinstance(output1, str), (type(output1), encoding)
126        if encoding is None:
127            assert isinstance(output2, str), (type(output1), encoding)
128        else:
129            assert isinstance(output2, bytes), (type(output1), encoding)
130            output2.decode(encoding)
131
132test_unicode_transfer.unittest = ['.unicode']
133
134if __name__ == '__main__':
135    import test_appliance
136    test_appliance.run(globals())
137