perl-IO-Pty-Easy-0.09-5.fc25 fails to build in F25 sometimes because a test can fail:

%check phase:
#   Failed test 'write returns undef on timeout'
#   at t/read-write.t line 18.
#          got: '11'
#     expected: undef
# Looks like you failed 1 test of 5.
t/read-write.t ............ 
Dubious, test returned 1 (wstat 256, 0x100)
Failed

Reproducer is:

$ while (perl -Ilib t/read-write.t); do :;done

It looks like there is a race in the test.