def run_encap_combination_test(self, outer_pkt_type, inner_pkt_type):
"""
@summary: Send double and triple encapsulated packets for each IP range and
expect the packet to be received from one of the expected ports
"""
for dut_index, fib in enumerate(self.fibs):
if inner_pkt_type == 'ipv4':
ip_ranges = fib.ipv4_ranges()
elif inner_pkt_type == 'ipv6':
ip_ranges = fib.ipv6_ranges()
else:
raise Exception('ERROR: Invalid inner packet type passed: ', inner_pkt_type)
ip_ranges_length = len(ip_ranges)
if ip_ranges_length > 150:
# This is to limit the test execution time. Because the IP ranges in the head and tail of the list are
# kind of special. We need to always cover them. The IP ranges in the middle are not fundamentally
# different. We can just sample some IP ranges in the middle. Using this method, test coverage is not
# compromized. Test execution time can be reduced from over 5000 seconds to around 300 seconds.
last_ten_index = ip_ranges_length - 10
covered_ip_ranges = ip_ranges[:100] + \
random.sample(ip_ranges[100:last_ten_index], 40) + \
ip_ranges[last_ten_index:]
else:
covered_ip_ranges = ip_ranges[:]
for ip_range in covered_ip_ranges:
self.check_range(ip_range, outer_pkt_type, inner_pkt_type, dut_index)
def check_ip_ranges(self, ipv4=True):
for dut_index, fib in enumerate(self.fibs):
if ipv4:
ip_ranges = fib.ipv4_ranges()
else:
ip_ranges = fib.ipv6_ranges()
if len(ip_ranges) > 150:
covered_ip_ranges = ip_ranges[:100] + random.sample(ip_ranges[100:], 50) # Limit test execution time
else:
covered_ip_ranges = ip_ranges[:]
for ip_range in covered_ip_ranges:
if ip_range.get_first_ip() in fib:
self.check_ip_range(ip_range, dut_index, ipv4)
random.shuffle(covered_ip_ranges)
self.check_balancing(covered_ip_ranges, dut_index, ipv4)