def initialize(self, start, end, size):
""" Calculate effective start, end, length and pagesize values
"""
start, end, sz = opt(start, end, size, self.orphan,
self.sequence_length)
self.pagesize = sz
self.start = start
self.end = end
self.first = max(start - 1, 0)
if self.beyond:
self.first = self.end
self.length = self.end - self.first
self.last = self.sequence_length - size
# Set up the total number of pages
self.numpages = calculate_pagenumber(
self.sequence_length - self.orphan, self.pagesize, self.overlap)
# Set up the current page number
self._pagenumber = calculate_pagenumber(
self.start, self.pagesize, self.overlap)
# Make sure self._pagenumber is <= self.numpages
if self._pagenumber > self.numpages:
self._pagenumber = self.numpages
def initialize(self, start, end, size):
""" Calculate effective start, end, length and pagesize values
"""
start, end, sz = opt(start, end, size, self.orphan,
self.sequence_length)
self.pagesize = sz
self.start = start
self.end = end
self.first = max(start - 1, 0)
if self.beyond:
self.first = self.end
self.length = self.end - self.first
self.last = self.sequence_length - size
# Set up the total number of pages
self.numpages = calculate_pagenumber(
self.sequence_length - self.orphan, self.pagesize, self.overlap)
# Set up the current page number
self._pagenumber = calculate_pagenumber(self.start, self.pagesize,
self.overlap)
# Make sure self._pagenumber is <= self.numpages
if self._pagenumber > self.numpages:
self._pagenumber = self.numpages
def test_opt_end_smaller_start(self):
# end > start
self.assertEqual(opt(20, 10, 5, 0, 100), (20, 20, 5))
def test_opt_start_bigger_length(self):
# start > length
self.assertEqual(opt(20, 0, 5, 0, 10), (10, 10, 5))
def test_opt_nosize_noend(self):
# no size and no valid start and end parameters given
self.assertEqual(opt(1, 0, 0, 0, 100), (1, 25, 25))
def test_opt_nosize_start_end(self):
# no size given, but valid start and end parameters
self.assertEqual(opt(1, 31, 0, 0, 100), (1, 31, 31))
def test_opt_overlap(self):
# overlap
self.assertEqual(opt(1, 0, 5, 2, 7), (1, 7, 5))
def test_opt_standard(self):
self.assertEqual(opt(1, 0, 5, 0, 100), (1, 5, 5))
def test_opt_end_smaller_start(self):
# end > start
self.assertEqual(opt(20, 10, 5, 0, 100), (20, 20, 5))
def test_opt_start_bigger_length(self):
# start > length
self.assertEqual(opt(20, 0, 5, 0, 10), (10, 10, 5))
def test_opt_nosize_noend(self):
# no size and no valid start and end parameters given
self.assertEqual(opt(1, 0, 0, 0, 100), (1, 25, 25))
def test_opt_nosize_start_end(self):
# no size given, but valid start and end parameters
self.assertEqual(opt(1, 31, 0, 0, 100), (1, 31, 31))
def test_opt_overlap(self):
# overlap
self.assertEqual(opt(1, 0, 5, 2, 7), (1, 7, 5))
def test_opt_standard(self):
self.assertEqual(opt(1, 0, 5, 0, 100), (1, 5, 5))