hg: jdk/sandbox: unixdomainchannels: added some unit tests

[michael.x.mcmahon at oracle.com]

Changeset: 15e9a570c6e6
Author:    michaelm
Date:      2019-11-13 11:06 +0000
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/15e9a570c6e6

unixdomainchannels: added some unit tests

! src/java.base/share/classes/sun/nio/ch/UnixDomainServerSocketChannelImpl.java
! src/java.base/share/classes/sun/nio/ch/UnixDomainSocketChannelImpl.java
+ test/jdk/java/nio/channels/unixdomain/Basic.java
+ test/jdk/java/nio/channels/unixdomain/SocketOptions.java