add tests, comments, and set freed member to null

11 jobs for port-unpost in 408 minutes and 52 seconds (queued for 2 seconds)
Status Name Job ID Coverage
  Test
passed debian_jessie_i386_deb #10611
debian jessie i386

00:34:35

passed debian_jessie_x86_64_deb #10650
x86_64 jessie debian

00:34:07

passed debian_stretch_x86_64_deb #10613
debian stretch x86_64

00:34:34

passed osx_10.11_x86_64_dmg #10617
osx v10.11 dmg

00:31:11

passed osx_10.8_x86_64_dmg #10618
osx v10.8 dmg

00:22:50

passed raspbian_stretch_armv7l_deb #10620
raspbian arm stretch

00:52:47

passed ubuntu_14.04_i386_deb #10614
ubuntu v14.04 i386

00:40:19

passed ubuntu_14.04_x86_64_deb #10615
ubuntu v14.04 x86_64

00:39:50

passed ubuntu_16.04_x86_64_deb #10616
ubuntu v16.04 x86_64

00:49:07

passed windows_i386_innosetup #10619
windows i386

01:34:41

failed debian_jessie_x86_64_deb #10612
debian jessie x86_64

00:00:10