On Tue, 5 Jan 2021 16:01:11 GMT, Uwe Schindler <uschind...@openjdk.org> wrote:
>> I am not sure if a test like this is really needed. >> The alignment is pageSize on Linux and some arbitrary value (65536) on >> Windows. If you have some test file that writes like a few bytes (1, 2, 3, >> 4,...) To a file and then maps it with offsets other than zero, you just >> have to get the first byte and compare it to offset. > > In fact the new test only checks if everything is aligned like we expect, but > it does not test that our mapping returns a memory segment with expected > contents. So I tend to make a simple test without reflection that writes a defined sequence of bytes to a file and then maps it with various offsets, checking that the first byte in the mapped segment is from that sequence. ------------- PR: https://git.openjdk.java.net/jdk16/pull/84
