If the packet stats have a difference of 0, the test output shows:
INFO: Expected ratio 2.00 Measured ratio
Runtime error (func=(main), adr=9): Divide by zero
(standard_in) 2: syntax error
(standard_in) 1: syntax error
./router_multipath.sh: line 187: test: : integer expression expected
TEST: Multipath [FAIL]
Too large discrepancy between expected and measured ratios
Handle the 0 and display a cleaner message:
INFO: Running IPv6 multipath tests
TEST: Multipath [FAIL]
Packet difference is 0
Signed-off-by: David Ahern <dsahern@xxxxxxxxx>
Reviewed-by: Ido Schimmel <idosch@xxxxxxxxxxxx>
---
tools/testing/selftests/net/forwarding/router_multipath.sh | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/tools/testing/selftests/net/forwarding/router_multipath.sh b/tools/testing/selftests/net/forwarding/router_multipath.sh
index d31888e3133e..c1a437c5b15f 100755
--- a/tools/testing/selftests/net/forwarding/router_multipath.sh
+++ b/tools/testing/selftests/net/forwarding/router_multipath.sh
@@ -168,6 +168,13 @@ multipath_eval()
RET=0
+ if [[ "$packets_rp12" -eq "0" || "$packets_rp13" -eq "0" ]]; then
+ check_err 1 "Packet difference is 0"
+ log_test "Multipath"
+ log_info "Expected ratio $weights_ratio"
+ return
+ fi
+
if [[ "$weight_rp12" -gt "$weight_rp13" ]]; then
weights_ratio=$(echo "scale=2; $weight_rp12 / $weight_rp13" \
| bc -l)
--
2.11.0
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