When a test's process creates its own child and exits, the grandchild
may keep pipes open. Fix CTest logic to correctly timeout if the
grandchild does not exit and close the pipes before the timeout expires.
This was broken by commit b5e21d7d2e (CTest: Re-implement test process
handling using libuv, 2017-12-10, v3.11.0-rc1~117^2) which added an
unnecessary condition to the timeout handling.
Fixes: #20116
CMake Tests Directory
*********************
This directory contains the CMake test suite.
See also the `CMake Source Code Guide`_.
.. _`CMake Source Code Guide`: ../Help/dev/source.rst
Many tests exist as immediate subdirectories, but some tests
are organized as follows.
* ``CMakeLib/``:
Source code, used for tests, that links to the ``CMakeLib`` library
defined over in ``Source/``.
* ``CMakeOnly/``:
Deprecated. Tests that run CMake to generate a project but not build it.
Superseded by ``Tests/RunCMake/``.
* ``Find*/``:
Tests for specific find modules that can only be run on machines with
the corresponding packages installed. They are enabled in
``CMakeLists.txt`` by undocumented options used on CI builds.
* ``Module/``:
Tests for specific CMake modules.
* ``RunCMake/``:
Tests that run CMake and/or other tools while precisely checking
their return code and stdout/stderr content. Useful for testing
error cases and diagnostic output.
Brad King
d1976cd1f2