132 lines
3.6 KiB
Python
132 lines
3.6 KiB
Python
from StringIO import StringIO
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from util.registry.filelike import FilelikeStreamConcat, LimitingStream, StreamSlice
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def somegenerator():
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yield 'some'
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yield 'cool'
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yield 'file-contents'
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def test_parts():
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gens = iter([StringIO(s) for s in somegenerator()])
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fileobj = FilelikeStreamConcat(gens)
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assert fileobj.read(2) == 'so'
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assert fileobj.read(3) == 'mec'
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assert fileobj.read(7) == 'oolfile'
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assert fileobj.read(-1) == '-contents'
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def test_entire():
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gens = iter([StringIO(s) for s in somegenerator()])
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fileobj = FilelikeStreamConcat(gens)
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assert fileobj.read(-1) == 'somecoolfile-contents'
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def test_nolimit():
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fileobj = StringIO('this is a cool test')
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stream = LimitingStream(fileobj)
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assert stream.read(-1) == 'this is a cool test'
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assert len('this is a cool test') == stream.tell()
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def test_simplelimit():
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fileobj = StringIO('this is a cool test')
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stream = LimitingStream(fileobj, 4)
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assert stream.read(-1) == 'this'
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assert 4 == stream.tell()
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def test_simplelimit_readdefined():
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fileobj = StringIO('this is a cool test')
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stream = LimitingStream(fileobj, 4)
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assert stream.read(2) == 'th'
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assert 2 == stream.tell()
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def test_nolimit_readdefined():
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fileobj = StringIO('this is a cool test')
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stream = LimitingStream(fileobj, -1)
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assert stream.read(2) == 'th'
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assert 2 == stream.tell()
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def test_limit_multiread():
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fileobj = StringIO('this is a cool test')
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stream = LimitingStream(fileobj, 7)
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assert stream.read(4) == 'this'
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assert stream.read(3) == ' is'
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assert stream.read(2) == ''
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assert 7 == stream.tell()
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def test_limit_multiread2():
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fileobj = StringIO('this is a cool test')
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stream = LimitingStream(fileobj, 7)
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assert stream.read(4) == 'this'
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assert stream.read(-1) == ' is'
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assert 7 == stream.tell()
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def test_seek():
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fileobj = StringIO('this is a cool test')
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stream = LimitingStream(fileobj)
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stream.seek(2)
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assert stream.read(2) == 'is'
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assert 4 == stream.tell()
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def test_seek_withlimit():
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fileobj = StringIO('this is a cool test')
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stream = LimitingStream(fileobj, 3)
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stream.seek(2)
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assert stream.read(2) == 'i'
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assert 3 == stream.tell()
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def test_seek_pastlimit():
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fileobj = StringIO('this is a cool test')
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stream = LimitingStream(fileobj, 3)
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stream.seek(4)
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assert stream.read(1) == ''
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assert 3 == stream.tell()
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def test_seek_to_tell():
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fileobj = StringIO('this is a cool test')
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stream = LimitingStream(fileobj, 3)
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stream.seek(stream.tell())
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assert stream.read(4) == 'thi'
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assert 3 == stream.tell()
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def test_none_read():
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class NoneReader(object):
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def read(self, size=None):
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return None
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stream = StreamSlice(NoneReader(), 0)
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assert stream.read(-1) == None
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assert stream.tell() == 0
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def test_noslice():
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fileobj = StringIO('this is a cool test')
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stream = StreamSlice(fileobj, 0)
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assert stream.read(-1) == 'this is a cool test'
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assert len('this is a cool test') == stream.tell()
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def test_startindex():
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fileobj = StringIO('this is a cool test')
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stream = StreamSlice(fileobj, 5)
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assert stream.read(-1) == 'is a cool test'
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assert len('is a cool test') == stream.tell()
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def test_startindex_limitedread():
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fileobj = StringIO('this is a cool test')
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stream = StreamSlice(fileobj, 5)
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assert stream.read(4) == 'is a'
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assert 4 == stream.tell()
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def test_slice():
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fileobj = StringIO('this is a cool test')
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stream = StreamSlice(fileobj, 5, 9)
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assert stream.read(-1) == 'is a'
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assert len('is a') == stream.tell()
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def test_slice_explictread():
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fileobj = StringIO('this is a cool test')
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stream = StreamSlice(fileobj, 5, 9)
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assert stream.read(2) == 'is'
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assert stream.read(5) == ' a'
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assert len('is a') == stream.tell()
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