Add get_bondethernets()

config/bondethernet.py

@@ -14,6 +14,15 @@
 import logging
 import config.interface as interface
 
+def get_bondethernets(yaml):
+    """ Return a list of all bondethernets. """
+    ret = []
+    if 'bondethernets' in yaml:
+        for ifname, iface in yaml['bondethernets'].items():
+            ret.append(ifname)
+    return ret
+
+
 def get_by_name(yaml, ifname):
     """ Return the BondEthernet by name, if it exists. Return None,None otherwise. """
     try:

config/test_bondethernet.py

@@ -28,3 +28,10 @@ class TestBondEthernetMethods(unittest.TestCase):
         self.assertTrue(bondethernet.is_bondethernet(self.cfg, "BondEthernet0"))
         self.assertFalse(bondethernet.is_bondethernet(self.cfg, "BondEthernet-notexist"))
         self.assertFalse(bondethernet.is_bondethernet(self.cfg, "GigabitEthernet1/0/0"))
+
+    def test_enumerators(self):
+        ifs = bondethernet.get_bondethernets(self.cfg)
+        self.assertEqual(len(ifs), 1)
+        self.assertIn("BondEthernet0", ifs)
+        self.assertNotIn("BondEthernet-noexist", ifs)
+