GoogleTest: Rename TIMEOUT parameter to avoid clash

In gtest_discover_tests(), the TIMEOUT keyword was making it
impossible to set the TIMEOUT test property via the PROPERTIES
keyword. This would be a frequent case, but it doesn't complain
and instead silently does something different to what would
normally be expected. The TIMEOUT keyword has been renamed
to DISCOVERY_TIMEOUT, thereby removing the clash.

This is a breaking change. 3.10.1 and 3.10.2 were the only versions
that supported the TIMEOUT keyword and uses of it were likely
not working as intended.

Fixes: #17801

1 files changed, 4 insertions, 0 deletions

diff --git a/Tests/RunCMake/GoogleTest/no_tests_defined.cpp b/Tests/RunCMake/GoogleTest/no_tests_defined.cpp
new file mode 100644
index 0000000..f8b643a
--- /dev/null
+++ b/Tests/RunCMake/GoogleTest/no_tests_defined.cpp
@@ -0,0 +1,4 @@
+int main()
+{
+  return 0;
+}