Add test for dumping\restoring unnamed unix sockets.

* Added test for dumping\restoring of unnamed unix sockets.
  Also test added to test/Makefile. Use make run for launch.

* Cleanup env after call run.sh in test/libcriu.
Signed-off-by: Artem Kuzmitskiy <artem.kuzmitskiy@lge.com>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

test/Makefile

@@ -13,7 +13,7 @@ all:
 
 .PHONY: all
 
-TESTS = unix-callback mem-snap rpc libcriu mounts/ext security pipes crit
+TESTS = unix-callback mem-snap rpc libcriu mounts/ext security pipes crit socketpairs
 
 other: .FORCE
 	for t in $(TESTS); do			\

test/libcriu/run.sh

@@ -43,5 +43,6 @@ run_test test_errno
 
 echo "== Stopping service"
 kill -TERM $(cat wdir/s/pidfile)
+unlink libcriu.so.1
 [ $RESULT -eq 0 ] && echo "Success" || echo "FAIL"
 exit $RESULT

test/socketpairs/Makefile

+CFLAGS += -Wall
+socketpair: socketpair.c
+clean:
+	rm -f socketpair
+run: socketpair
+	./socketpair  &&		\
+	./socketpair -v &&		\
+	./socketpair -m4 &&		\
+	true