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# Copyright (C) 2008 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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from cStringIO import StringIO
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class FakeReadFile(object):
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"""A file-like object that can be given predefined content and read
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like a file. The maximum size and number of the reads is recorded."""
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def __init__(self, data):
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"""Initialize the mock file object with the provided data."""
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self.data = StringIO(data)
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self.max_read_size = None
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def read(self, size=-1):
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"""Reads size characters from the input (or the rest of the string if
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data = self.data.read(size)
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self.max_read_size = max(self.max_read_size, len(data))
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def get_max_read_size(self):
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"""Returns the maximum read size or None if no reads have occured."""
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return self.max_read_size
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def get_read_count(self):
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"""Returns the number of calls to read."""
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return self.read_count
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def reset_read_count(self):
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"""Clears the read count."""