Add TAP syntax/semantic validator

config/test_tap.py

@@ -0,0 +1,35 @@
+import unittest
+import yaml
+import config.tap as tap
+
+class TestTAPMethods(unittest.TestCase):
+    def setUp(self):
+        with open("unittest/test_tap.yaml", "r") as f:
+            self.cfg = yaml.load(f, Loader = yaml.FullLoader)
+
+    def test_get_by_name(self):
+        ifname, iface = tap.get_by_name(self.cfg, "tap0")
+        self.assertIsNotNone(iface)
+        self.assertEqual("tap0", ifname)
+
+        ifname, iface = tap.get_by_name(self.cfg, "tap-noexist")
+        self.assertIsNone(ifname)
+        self.assertIsNone(iface)
+
+    def test_is_tap(self):
+        self.assertTrue(tap.is_tap(self.cfg, "tap0"))
+        self.assertTrue(tap.is_tap(self.cfg, "tap1"))
+        self.assertFalse(tap.is_tap(self.cfg, "tap-noexist"))
+
+    def test_is_host_name_unique(self):
+        self.assertTrue(tap.is_host_name_unique(self.cfg, "tap0"))
+        self.assertTrue(tap.is_host_name_unique(self.cfg, "tap1"))
+        self.assertTrue(tap.is_host_name_unique(self.cfg, "tap-noexist"))
+        self.assertFalse(tap.is_host_name_unique(self.cfg, "vpp-tap"))
+
+    def test_enumerators(self):
+        ifs = tap.get_taps(self.cfg)
+        self.assertEqual(len(ifs), 4)
+        self.assertIn("tap0", ifs)
+        self.assertIn("tap1", ifs)
+        self.assertNotIn("tap-noexist", ifs)