The queries we use in the test scripts to locate the external interface
or gateway can return multiple results.  We get away with this because the
way we parse command output only looks at the last line.  It's not really
correct, though, and improvements to our handling of command output will
mean it breaks.

Signed-off-by: David Gibson <david(a)gibson.dropbear.id.au>
---
 test/dhcp/passt | 4 ++--
 test/dhcp/pasta | 4 ++--
 test/ndp/passt  | 4 ++--
 test/ndp/pasta  | 2 +-
 4 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/test/dhcp/passt b/test/dhcp/passt
index 11e0eb3..37bf6b5 100644
--- a/test/dhcp/passt
+++ b/test/dhcp/passt
@@ -28,7 +28,7 @@ check	[ "__ADDR__" = "__HOST_ADDR__" ]
 
 test	DHCP: route
 gout	GW ip -j -4 route show|jq -rM '.[] | select(.dst == "default").gateway'
-hout	HOST_GW ip -j -4 route show|jq -rM '.[] | select(.dst == "default").gateway'
+hout	HOST_GW ip -j -4 route show|jq -rM '[.[] | select(.dst == "default").gateway] | .[0]'
 check	[ "__GW__" = "__HOST_GW__" ]
 
 test	DHCP: MTU
@@ -55,7 +55,7 @@ check	[ "__ADDR6__" = "__HOST_ADDR6__" ]
 
 test	DHCPv6: route
 gout	GW6 ip -j -6 route show|jq -rM '.[] | select(.dst == "default").gateway'
-hout	HOST_GW6 ip -j -6 route show|jq -rM '.[] | select(.dst == "default").gateway'
+hout	HOST_GW6 ip -j -6 route show|jq -rM '[.[] | select(.dst == "default").gateway] | .[0]'
 check	[ "__GW6__" = "__HOST_GW6__" ]
 
 # Strip interface specifier: interface names might differ between host and guest
diff --git a/test/dhcp/pasta b/test/dhcp/pasta
index 076ec8d..d1e9611 100644
--- a/test/dhcp/pasta
+++ b/test/dhcp/pasta
@@ -26,7 +26,7 @@ check	[ __ADDR__ = __HOST_ADDR__ ]
 
 test	DHCP: route
 nsout	GW ip -j -4 route show|jq -rM '.[] | select(.dst == "default").gateway'
-hout	HOST_GW ip -j -4 route show|jq -rM '.[] | select(.dst == "default").gateway'
+hout	HOST_GW ip -j -4 route show|jq -rM '[.[] | select(.dst == "default").gateway] | .[0]'
 check	[ __GW__ = __HOST_GW__ ]
 
 test	DHCP: MTU
@@ -42,5 +42,5 @@ check	[ __ADDR6__ = __HOST_ADDR6__ ]
 
 test	DHCPv6: route
 nsout	GW6 ip -j -6 route show|jq -rM '.[] | select(.dst == "default").gateway'
-hout	HOST_GW6 ip -j -6 route show|jq -rM '.[] | select(.dst == "default").gateway'
+hout	HOST_GW6 ip -j -6 route show|jq -rM '[.[] | select(.dst == "default").gateway] | .[0]'
 check	[ __GW6__ = __HOST_GW6__ ]
diff --git a/test/ndp/passt b/test/ndp/passt
index 8ef15e7..c73fd4d 100644
--- a/test/ndp/passt
+++ b/test/ndp/passt
@@ -17,7 +17,7 @@ htools	ip jq sipcalc grep cut
 test	Interface name
 gout	IFNAME ip -j link show | jq -rM '.[] | select(.link_type == "ether").ifname'
 guest	ip link set dev __IFNAME__ up && sleep 2
-hout	HOST_IFNAME6 ip -j -6 route show|jq -rM '.[] | select(.dst == "default").dev'
+hout	HOST_IFNAME6 ip -j -6 route show|jq -rM '[.[] | select(.dst == "default").dev] | .[0]'
 check	[ -n "__IFNAME__" ]
 
 test	SLAAC: prefix
@@ -29,5 +29,5 @@ check	[ "__PREFIX6__" = "__HOST_PREFIX6__" ]
 
 test	SLAAC: route
 gout	GW6 ip -j -6 route show|jq -rM '.[] | select(.dst == "default").gateway'
-hout	HOST_GW6 ip -j -6 route show|jq -rM '.[] | select(.dst == "default").gateway'
+hout	HOST_GW6 ip -j -6 route show|jq -rM '[.[] | select(.dst == "default").gateway] | .[0]'
 check	[ __GW6__ = __HOST_GW6__ ]
diff --git a/test/ndp/pasta b/test/ndp/pasta
index 28fdd72..d776055 100644
--- a/test/ndp/pasta
+++ b/test/ndp/pasta
@@ -29,5 +29,5 @@ check	[ "__PREFIX6__" = "__HOST_PREFIX6__" ]
 
 test	SLAAC: route
 nsout	GW6 ip -j -6 route show|jq -rM '.[] | select(.dst == "default").gateway'
-hout	HOST_GW6 ip -j -6 route show|jq -rM '.[] | select(.dst == "default").gateway'
+hout	HOST_GW6 ip -j -6 route show|jq -rM '[.[] | select(.dst == "default").gateway] | .[0]'
 check	[ __GW6__ = __HOST_GW6__ ]
-- 
2.37.2