All the UDP tests use :> to truncate some temporary data files.  This
appears to be so that they're empty before writing data to them with tee.
However tee, by default, truncates its output file anyway (you need tee -a
to append).  So drop the unnecessary truncations.

Signed-off-by: David Gibson <david(a)gibson.dropbear.id.au>
---
 test/udp/passt       |  2 --
 test/udp/passt_in_ns | 10 ----------
 test/udp/pasta       |  6 ------
 3 files changed, 18 deletions(-)

diff --git a/test/udp/passt b/test/udp/passt
index ee575e0..7c58648 100644
--- a/test/udp/passt
+++ b/test/udp/passt
@@ -26,7 +26,6 @@ gout	GUEST_MD5 md5sum test.bin | cut -d' ' -f1
 check	[ "__GUEST_MD5__" = "__HOST_MD5__" ]
 
 test	UDP/IPv4: guest to host
-host	:> __TEMP__
 hostb	(socat -u UDP4-LISTEN:10003,bind=127.0.0.1 STDOUT & echo $! > __SC_PID__) | tee __TEMP__ | (grep -qm1 "END_OF_TEST" && kill $(cat __SC_PID__))
 gout	GW ip -j -4 route show|jq -rM '.[] | select(.dst == "default").gateway'
 guest	socat -u OPEN:test.bin UDP4:__GW__:10003
@@ -43,7 +42,6 @@ gout	GUEST_MD5 md5sum test.bin | cut -d' ' -f1
 check	[ "__GUEST_MD5__" = "__HOST_MD5__" ]
 
 test	UDP/IPv6: guest to host
-host	:> __TEMP__
 hostb	(socat -u UDP6-LISTEN:10003,bind=[::1] STDOUT & echo $! > __SC_PID__) | tee __TEMP__ | (grep -qm1 "END_OF_TEST" && kill $(cat __SC_PID__))
 gout	GW6 ip -j -6 route show|jq -rM '.[] | select(.dst == "default").gateway'
 gout	IFNAME ip -j link show | jq -rM '.[] | select(.link_type == "ether").ifname'
diff --git a/test/udp/passt_in_ns b/test/udp/passt_in_ns
index 3536298..8f8090b 100644
--- a/test/udp/passt_in_ns
+++ b/test/udp/passt_in_ns
@@ -28,7 +28,6 @@ check	[ "__GUEST_MD5__" = "__MD5__" ]
 
 test	UDP/IPv4: host to ns
 temp	TEMP_NS
-ns	:> __TEMP_NS__
 nsb	(socat -u UDP4-LISTEN:10002 STDOUT & echo $! > __SC_PID__) | tee __TEMP_NS__ | (grep -qm1 "END_OF_TEST" && kill $(cat __SC_PID__))
 host	socat -u OPEN:__TEMP__ UDP4:127.0.0.1:10002
 nsw
@@ -36,7 +35,6 @@ nsout	NS_MD5 md5sum __TEMP_NS__ | cut -d' ' -f1
 check	[ "__NS_MD5__" = "__MD5__" ]
 
 test	UDP/IPv4: guest to host
-host	:> __TEMP__
 hostb	(socat -u UDP4-LISTEN:10003 STDOUT & echo $! > __SC_PID__) | tee __TEMP__ | (grep -qm1 "END_OF_TEST" && kill $(cat __SC_PID__))
 gout	GW ip -j -4 route show|jq -rM '.[] | select(.dst == "default").gateway'
 guest	socat -u OPEN:test.bin UDP4:__GW__:10003
@@ -45,7 +43,6 @@ hout	HOST_MD5 md5sum __TEMP__ | cut -d' ' -f1
 check	[ "__HOST_MD5__" = "__MD5__" ]
 
 test	UDP/IPv4: guest to ns
-ns	:> __TEMP_NS__
 nsb	(socat -u UDP4-LISTEN:10002 STDOUT & echo $! > __SC_PID__) | tee __TEMP_NS__ | (grep -qm1 "END_OF_TEST" && kill $(cat __SC_PID__))
 guest	socat -u OPEN:test.bin UDP4:__GW__:10002
 hostw
@@ -54,7 +51,6 @@ check	[ "__HOST_MD5__" = "__MD5__" ]
 
 test	UDP/IPv4: ns to host (recvmmsg/sendmmsg)
 sleep	1
-host	:> __TEMP__
 hostb	(socat -u UDP4-LISTEN:10003 STDOUT & echo $! > __SC_PID__) | tee __TEMP__ | (grep -qm1 "END_OF_TEST" && kill $(cat __SC_PID__))
 ns	socat -u OPEN:__TEMP_NS__ UDP4:127.0.0.1:10003
 hostw
@@ -62,7 +58,6 @@ hout	HOST_MD5 md5sum __TEMP__ | cut -d' ' -f1
 check	[ "__HOST_MD5__" = "__MD5__" ]
 
 test	UDP/IPv4: ns to host (via tap)
-host	:> __TEMP__
 hostb	(socat -u UDP4-LISTEN:10003 STDOUT & echo $! > __SC_PID__) | tee __TEMP__ | (grep -qm1 "END_OF_TEST" && kill $(cat __SC_PID__))
 ns	socat -u OPEN:__TEMP_NS__ UDP4:__GW__:10003
 hostw
@@ -93,7 +88,6 @@ gout	GUEST_MD5 md5sum test.bin | cut -d' ' -f1
 check	[ "__GUEST_MD5__" = "__MD5__" ]
 
 test	UDP/IPv6: host to ns
-ns	:> __TEMP_NS__
 nsb	(socat -u UDP6-LISTEN:10002 STDOUT & echo $! > __SC_PID__) | tee __TEMP_NS__ | (grep -qm1 "END_OF_TEST" && kill $(cat __SC_PID__))
 host	socat -u OPEN:__TEMP__ UDP6:[::1]:10002
 nsw
@@ -101,7 +95,6 @@ nsout	NS_MD5 md5sum __TEMP_NS__ | cut -d' ' -f1
 check	[ "__NS_MD5__" = "__MD5__" ]
 
 test	UDP/IPv6: guest to host
-host	:> __TEMP__
 hostb	(socat -u UDP6-LISTEN:10003 STDOUT & echo $! > __SC_PID__) | tee __TEMP__ | (grep -qm1 "END_OF_TEST" && kill $(cat __SC_PID__))
 gout	GW6 ip -j -6 route show|jq -rM '.[] | select(.dst == "default").gateway'
 gout	IFNAME ip -j link show | jq -rM '.[] | select(.link_type == "ether").ifname'
@@ -111,7 +104,6 @@ hout	HOST_MD5 md5sum __TEMP__ | cut -d' ' -f1
 check	[ "__HOST_MD5__" = "__MD5__" ]
 
 test	UDP/IPv6: guest to ns
-ns	:> __TEMP_NS__
 nsb	(socat -u UDP6-LISTEN:10002 STDOUT & echo $! > __SC_PID__) | tee __TEMP_NS__ | (grep -qm1 "END_OF_TEST" && kill $(cat __SC_PID__))
 guest	socat -u OPEN:test.bin UDP6:[__GW6__%__IFNAME__]:10002
 hostw
@@ -119,7 +111,6 @@ hout	HOST_MD5 md5sum __TEMP__ | cut -d' ' -f1
 check	[ "__HOST_MD5__" = "__MD5__" ]
 
 test	UDP/IPv6: ns to host (recvmmsg/sendmmsg)
-host	:> __TEMP__
 hostb	(socat -u UDP6-LISTEN:10003 STDOUT & echo $! > __SC_PID__) | tee __TEMP__ | (grep -qm1 "END_OF_TEST" && kill $(cat __SC_PID__))
 ns	socat -u OPEN:__TEMP_NS__ UDP6:[::1]:10003
 hostw
@@ -127,7 +118,6 @@ hout	HOST_MD5 md5sum __TEMP__ | cut -d' ' -f1
 check	[ "__HOST_MD5__" = "__MD5__" ]
 
 test	UDP/IPv6: ns to host (via tap)
-host	:> __TEMP__
 hostb	(socat -u UDP6-LISTEN:10003 STDOUT & echo $! > __SC_PID__) | tee __TEMP__ | (grep -qm1 "END_OF_TEST" && kill $(cat __SC_PID__))
 nsout	IFNAME ip -j link show | jq -rM '.[] | select(.link_type == "ether").ifname'
 ns	socat -u OPEN:__TEMP_NS__ UDP6:[__GW6__%__IFNAME__]:10003
diff --git a/test/udp/pasta b/test/udp/pasta
index 43e0513..25063ea 100644
--- a/test/udp/pasta
+++ b/test/udp/pasta
@@ -18,7 +18,6 @@ test	UDP/IPv4: host to ns
 temp	TEMP
 temp	TEMP_NS
 temp	NC_PID
-ns	:> __TEMP_NS__
 nsb	(socat -u UDP4-LISTEN:10002,bind=127.0.0.1 STDOUT & echo $! > __NC_PID__) | tee __TEMP_NS__ | (grep -qm1 "END_OF_TEST" && kill $(cat __NC_PID__))
 host	dd if=/dev/urandom bs=1k count=5 > __TEMP__ && printf "\nEND_OF_TEST\n" >> __TEMP__
 
@@ -29,7 +28,6 @@ nsout	NS_MD5 md5sum __TEMP_NS__ | cut -d' ' -f1
 check	[ "__NS_MD5__" = "__MD5__" ]
 
 test	UDP/IPv4: ns to host (recvmmsg/sendmmsg)
-host	:> __TEMP__
 hostb	(socat -u UDP4-LISTEN:10003,bind=127.0.0.1 STDOUT & echo $! > __NC_PID__) | tee __TEMP__ | (grep -qm1 "END_OF_TEST" && kill $(cat __NC_PID__))
 sleep	1
 ns	socat OPEN:__TEMP_NS__ UDP4:127.0.0.1:10003
@@ -38,7 +36,6 @@ hout	HOST_MD5 md5sum __TEMP__ | cut -d' ' -f1
 check	[ "__HOST_MD5__" = "__MD5__" ]
 
 test	UDP/IPv4: ns to host (via tap)
-host	:> __TEMP__
 hostb	(socat -u UDP4-LISTEN:10003 STDOUT & echo $! > __NC_PID__) | tee __TEMP__ | (grep -qm1 "END_OF_TEST" && kill $(cat __NC_PID__))
 nsout	GW ip -j -4 route show|jq -rM '.[] | select(.dst == "default").gateway'
 ns	socat -u OPEN:__TEMP_NS__ UDP4:__GW__:10003
@@ -47,7 +44,6 @@ hout	HOST_MD5 md5sum __TEMP__ | cut -d' ' -f1
 check	[ "__HOST_MD5__" = "__MD5__" ]
 
 test	UDP/IPv6: host to ns
-ns	:> __TEMP_NS__
 nsb	(socat -u UDP6-LISTEN:10002,bind=[::1] STDOUT & echo $! > __NC_PID__) | tee __TEMP_NS__ | (grep -qm1 "END_OF_TEST" && kill $(cat __NC_PID__))
 host	socat -u OPEN:__TEMP__ UDP6:[::1]:10002
 nsw
@@ -56,7 +52,6 @@ nsout	NS_MD5 md5sum __TEMP_NS__ | cut -d' ' -f1
 check	[ "__NS_MD5__" = "__MD5__" ]
 
 test	UDP/IPv6: ns to host (recvmmsg/sendmmsg)
-host	:> __TEMP__
 hostb	(socat -u UDP6-LISTEN:10003,bind=[::1] STDOUT & echo $! > __NC_PID__) | tee __TEMP__ | (grep -qm1 "END_OF_TEST" && kill $(cat __NC_PID__))
 sleep	1
 ns	socat -u OPEN:__TEMP_NS__ UDP6:[::1]:10003
@@ -66,7 +61,6 @@ check	[ "__HOST_MD5__" = "__MD5__" ]
 nsw
 
 test	UDP/IPv6: ns to host (via tap)
-host	:> __TEMP__
 hostb	(socat -u UDP6-LISTEN:10003 STDOUT & echo $! > __NC_PID__) | tee __TEMP__ | (grep -qm1 "END_OF_TEST" && kill $(cat __NC_PID__))
 nsout	GW6 ip -j -6 route show|jq -rM '.[] | select(.dst == "default").gateway'
 nsout	IFNAME ip -j link show | jq -rM '.[] | select(.link_type == "ether").ifname'
-- 
2.36.1