Add new tests for Link Local SIP/DIP (#18906)

Co-authored-by: Roman Savchuk <rsavchuk@nvidia.com>

Author: 2 people

tests/ip/ip_util.py

@@ -0,0 +1,89 @@
+import random
+import re
+import logging
+from tests.common.portstat_utilities import parse_column_positions
+
+logger = logging.getLogger(__name__)
+
+
+def sum_ifaces_counts(counter_out, ifaces, column):
+    if len(ifaces) == 0:
+        return 0
+    if len(ifaces) == 1:
+        return int(counter_out[ifaces[0]][column].replace(",", ""))
+    return sum([int(counter_out[iface][column].replace(",", "")) for iface in ifaces])
+
+
+def parse_interfaces(output_lines, pc_ports_map):
+    """
+    Parse the interfaces from 'show ip route' into an array
+    """
+    route_targets = []
+    ifaces = []
+    output_lines = output_lines[3:]
+
+    for item in output_lines:
+        match = re.search(r"(Ethernet\d+|PortChannel\d+)", item)
+        if match:
+            route_targets.append(match.group(0))
+
+    for route_target in route_targets:
+        if route_target.startswith("Ethernet"):
+            ifaces.append(route_target)
+        elif route_target.startswith("PortChannel") and route_target in pc_ports_map:
+            ifaces.extend(pc_ports_map[route_target])
+
+    return route_targets, ifaces
+
+
+def parse_rif_counters(output_lines):
+    """Parse the output of "show interfaces counters rif" command
+    Args:
+        output_lines (list): The output lines of "show interfaces counters rif" command
+    Returns:
+        list: A dictionary, key is interface name, value is a dictionary of fields/values
+    """
+
+    header_line = ''
+    separation_line = ''
+    separation_line_number = 0
+    for idx, line in enumerate(output_lines):
+        if line.find('----') >= 0:
+            header_line = output_lines[idx - 1]
+            separation_line = output_lines[idx]
+            separation_line_number = idx
+            break
+
+    try:
+        positions = parse_column_positions(separation_line)
+    except Exception:
+        logger.error('Possibly bad command output')
+        return {}
+
+    headers = []
+    for pos in positions:
+        header = header_line[pos[0]:pos[1]].strip().lower()
+        headers.append(header)
+
+    if not headers:
+        return {}
+
+    results = {}
+    for line in output_lines[separation_line_number + 1:]:
+        portstats = []
+        for pos in positions:
+            portstat = line[pos[0]:pos[1]].strip()
+            portstats.append(portstat)
+
+        intf = portstats[0]
+        results[intf] = {}
+        for idx in range(1, len(portstats)):  # Skip the first column interface name
+            results[intf][headers[idx]] = portstats[idx]
+
+    return results
+
+
+def random_mac():
+    return "02:00:00:%02x:%02x:%02x" % (random.randint(0, 255),
+                                        random.randint(0, 255),
+                                        random.randint(0, 255))