bpo-31855: unittest.mock.mock_open() results now respects the argument of read([size]) (GH-11521)

unittest.mock.mock_open() results now respects the argument of read([size])

Co-Authored-By: remilapeyre <remi.lapeyre@henki.fr>
Backports: 11a8832c98b3db78727312154dd1d3ba76d639ec
Signed-off-by: Chris Withers <chris@simplistix.co.uk>
3 files changed