111 lines
3.2 KiB
Python
111 lines
3.2 KiB
Python
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# coding: utf-8
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"""Test suite for our JSON utilities."""
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# Copyright (c) IPython Development Team.
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# Distributed under the terms of the Modified BSD License.
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from binascii import a2b_base64
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import json
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from datetime import datetime
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import numbers
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import nose.tools as nt
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from .. import jsonutil
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from ..jsonutil import json_clean, encode_images
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from ipython_genutils.py3compat import unicode_to_str
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class MyInt(object):
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def __int__(self):
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return 389
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numbers.Integral.register(MyInt)
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class MyFloat(object):
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def __float__(self):
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return 3.14
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numbers.Real.register(MyFloat)
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def test():
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# list of input/expected output. Use None for the expected output if it
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# can be the same as the input.
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pairs = [(1, None), # start with scalars
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(1.0, None),
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('a', None),
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(True, None),
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(False, None),
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(None, None),
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# Containers
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([1, 2], None),
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((1, 2), [1, 2]),
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(set([1, 2]), [1, 2]),
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(dict(x=1), None),
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({'x': 1, 'y':[1,2,3], '1':'int'}, None),
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# More exotic objects
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((x for x in range(3)), [0, 1, 2]),
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(iter([1, 2]), [1, 2]),
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(datetime(1991, 7, 3, 12, 00), "1991-07-03T12:00:00.000000"),
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(MyFloat(), 3.14),
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(MyInt(), 389)
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]
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for val, jval in pairs:
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if jval is None:
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jval = val
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out = json_clean(val)
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# validate our cleanup
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assert out == jval
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# and ensure that what we return, indeed encodes cleanly
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json.loads(json.dumps(out))
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def test_encode_images():
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# invalid data, but the header and footer are from real files
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pngdata = b'\x89PNG\r\n\x1a\nblahblahnotactuallyvalidIEND\xaeB`\x82'
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jpegdata = b'\xff\xd8\xff\xe0\x00\x10JFIFblahblahjpeg(\xa0\x0f\xff\xd9'
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pdfdata = b'%PDF-1.\ntrailer<</Root<</Pages<</Kids[<</MediaBox[0 0 3 3]>>]>>>>>>'
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bindata = b'\xff\xff\xff\xff'
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fmt = {
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'image/png' : pngdata,
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'image/jpeg' : jpegdata,
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'application/pdf' : pdfdata,
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'application/unrecognized': bindata,
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}
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encoded = json_clean(encode_images(fmt))
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for key, value in fmt.items():
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# encoded has unicode, want bytes
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decoded = a2b_base64(encoded[key])
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assert decoded == value
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encoded2 = json_clean(encode_images(encoded))
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assert encoded == encoded2
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# test that we don't double-encode base64 str
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b64_str = {}
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for key, encoded in encoded.items():
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b64_str[key] = unicode_to_str(encoded)
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encoded3 = json_clean(encode_images(b64_str))
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assert encoded3 == b64_str
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for key, value in fmt.items():
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decoded = a2b_base64(encoded3[key])
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assert decoded == value
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def test_lambda():
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with nt.assert_raises(ValueError):
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json_clean(lambda : 1)
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def test_exception():
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bad_dicts = [{1:'number', '1':'string'},
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{True:'bool', 'True':'string'},
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]
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for d in bad_dicts:
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nt.assert_raises(ValueError, json_clean, d)
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def test_unicode_dict():
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data = {u'üniço∂e': u'üniço∂e'}
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clean = jsonutil.json_clean(data)
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assert data == clean
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