MeshIO classes Write methods fail/timeout and round-trip test fail

[jhlegarreta]

Description

Some of the MeshIO (Modules/IO/Mesh*) classes Write* methods fail/timeout or the round-trip (write data, read back and compare the read values to the expected ones) fail.

Steps to Reproduce

The failing tests are located in the test module of each Modules/IO/Mesh* module. The failing calls have been commented out in the tests and a FIXME tag was put in the comments while adding the tests for these classes in #3403.

Expected behavior

Write methods work; tests do not timeout; round-trip checks pass.

Actual behavior

Some of the write methods do not work; tests timeout (MeshBYU); round-trip checks do not pass.

Reproducibility

%100.

Versions

master.

Environment

Issues were being reported in all platforms used by the CI builds. However, tests were passing on a Windows 7, MSVC 2019 machine.

Additional Information

Cross-referencing #3403 (comment)

Slightly related to this is the need to improve the buffer allocation method/buffer deletion, as noted in the referenced comment.

[jhlegarreta]

The buffer allocation/de-allocation method introduced memory leaks 😒:
https://open.cdash.org/viewDynamicAnalysis.php?buildid=7954824

I will push a WIP PR so that if @blowekamp or anyone that is able to run Valgrind on the branch and has the bandwidth can confirm whether the fix removes the leaks from the target test.

[jhlegarreta]

I will push a WIP PR so that if @blowekamp or anyone that is able to run Valgrind on the branch and has the bandwidth can confirm whether the fix removes the leaks from the target test.

PR #3459