def test_chunk_size_exception(self):
self.init_testfile()
with self.assertRaises(ValueError):
external_sort(self.testfile_name, chunk_size=0)
with self.assertRaises(ValueError):
external_sort(self.testfile_name, chunk_size=-100)
def test_chunk_size_exception(self):
self.init_testfile()
with self.assertRaises(ValueError):
external_sort(self.testfile_name, chunk_size=0)
with self.assertRaises(ValueError):
external_sort(self.testfile_name, chunk_size=-100)
def test_reverse_external_sort(self):
lines = self.init_testfile()
lines = sorted(lines, key=int, reverse=True)
external_sort(self.testfile_name, reverse=True)
with open(self.testfile_name, 'r') as testfile:
self.assertItemsEqual(testfile.readlines(), lines)
def test_reverse_external_sort(self):
lines = self.init_testfile()
lines = sorted(lines, key=int, reverse=True)
external_sort(self.testfile_name, reverse=True)
with open(self.testfile_name, 'r') as testfile:
self.assertItemsEqual(testfile.readlines(), lines)
