def test_cursor_reset(self):
"""Test that opening a file object if it's already open resets the cursor to 0."""
real_file_obj = open(__file__)
self.assertEqual(real_file_obj.tell(), 0)
f = open_file(real_file_obj) # shouldn't raise
self.assertEqual(f.tell(), 0)
f2 = open_file(f) # also shouldn't raise on previously-read file
self.assertEqual(f2.tell(), 0)
def test_open_file_obj(self):
real_file_obj = open(__file__)
f = open_file(real_file_obj) # shouldn't raise
f2 = open_file(f) # also shouldn't raise on previously-read file
def test_open_file_str(self):
not_a_file = "file"
self.assertRaises(FileNotFoundError, open_file, not_a_file)
real_file = __file__
f = open_file(real_file) # shouldn't raise