add proc-net-igmp parser and tests

tests/fixtures/linux-proc/net_igmp.json

@@ -0,0 +1 @@
+[{"index":1,"device":"lo","count":1,"querier":"V3","groups":[{"address":"010000E0","users":1,"timer":"0:00000000","reporter":0}]},{"index":2,"device":"ens33","count":1,"querier":"V3","groups":[{"address":"010000E0","users":1,"timer":"0:00000000","reporter":0}]}]

tests/fixtures/linux-proc/net_igmp_more

@@ -0,0 +1,30 @@
+Idx	Device    : Count Querier	Group    Users Timer	Reporter
+0	lo        :     0      V3
+				010000E0     1 0:00000000		0
+2	eth0      :    26      V2
+				260301E0     1 0:00000000		1
+				9B0101E0     1 0:00000000		1
+				439501E0     1 0:00000000		1
+				990101E0     1 0:00000000		1
+				580101E0     1 0:00000000		1
+				2A0301E0     1 0:00000000		1
+				290301E0     1 0:00000000		1
+				280301E0     1 0:00000000		1
+				9BD901E0     1 0:00000000		1
+				2D0301E0     1 0:00000000		1
+				2C0301E0     1 0:00000000		1
+				370301E0     1 0:00000000		1
+				050101E0     1 0:00000000		1
+				620201E0     1 0:00000000		1
+				040201E0     1 0:00000000		1
+				5F0101E0     1 0:00000000		1
+				520101E0     1 0:00000000		1
+				2BEF01E0     1 0:00000000		1
+				4D0101E0     1 0:00000000		1
+				E00C01E0     1 0:00000000		1
+				400301E0     1 0:00000000		1
+				FB0000E0     1 0:00000000		1
+				010000E0     1 0:00000000		0
+3	eth1      :     5      V2
+				FB0000E0     1 0:00000000		1
+				010000E0     1 0:00000000		0

tests/fixtures/linux-proc/net_igmp_more.json

@@ -0,0 +1 @@
+[{"index":0,"device":"lo","count":0,"querier":"V3","groups":[{"address":"010000E0","users":1,"timer":"0:00000000","reporter":0}]},{"index":2,"device":"eth0","count":26,"querier":"V2","groups":[{"address":"260301E0","users":1,"timer":"0:00000000","reporter":1},{"address":"9B0101E0","users":1,"timer":"0:00000000","reporter":1},{"address":"439501E0","users":1,"timer":"0:00000000","reporter":1},{"address":"990101E0","users":1,"timer":"0:00000000","reporter":1},{"address":"580101E0","users":1,"timer":"0:00000000","reporter":1},{"address":"2A0301E0","users":1,"timer":"0:00000000","reporter":1},{"address":"290301E0","users":1,"timer":"0:00000000","reporter":1},{"address":"280301E0","users":1,"timer":"0:00000000","reporter":1},{"address":"9BD901E0","users":1,"timer":"0:00000000","reporter":1},{"address":"2D0301E0","users":1,"timer":"0:00000000","reporter":1},{"address":"2C0301E0","users":1,"timer":"0:00000000","reporter":1},{"address":"370301E0","users":1,"timer":"0:00000000","reporter":1},{"address":"050101E0","users":1,"timer":"0:00000000","reporter":1},{"address":"620201E0","users":1,"timer":"0:00000000","reporter":1},{"address":"040201E0","users":1,"timer":"0:00000000","reporter":1},{"address":"5F0101E0","users":1,"timer":"0:00000000","reporter":1},{"address":"520101E0","users":1,"timer":"0:00000000","reporter":1},{"address":"2BEF01E0","users":1,"timer":"0:00000000","reporter":1},{"address":"4D0101E0","users":1,"timer":"0:00000000","reporter":1},{"address":"E00C01E0","users":1,"timer":"0:00000000","reporter":1},{"address":"400301E0","users":1,"timer":"0:00000000","reporter":1},{"address":"FB0000E0","users":1,"timer":"0:00000000","reporter":1},{"address":"010000E0","users":1,"timer":"0:00000000","reporter":0}]},{"index":3,"device":"eth1","count":5,"querier":"V2","groups":[{"address":"FB0000E0","users":1,"timer":"0:00000000","reporter":1},{"address":"010000E0","users":1,"timer":"0:00000000","reporter":0}]}]

tests/test_proc_net_igmp.py

@@ -0,0 +1,54 @@
+import os
+import unittest
+import json
+from typing import Dict
+import jc.parsers.proc_net_igmp
+
+THIS_DIR = os.path.dirname(os.path.abspath(__file__))
+
+
+class MyTests(unittest.TestCase):
+    f_in: Dict = {}
+    f_json: Dict = {}
+
+    @classmethod
+    def setUpClass(cls):
+        fixtures = {
+            'proc_net_igmp': (
+                'fixtures/linux-proc/net_igmp',
+                'fixtures/linux-proc/net_igmp.json'),
+            'proc_net_igmp_more': (
+                'fixtures/linux-proc/net_igmp_more',
+                'fixtures/linux-proc/net_igmp_more.json')
+        }
+
+        for file, filepaths in fixtures.items():
+            with open(os.path.join(THIS_DIR, filepaths[0]), 'r', encoding='utf-8') as a, \
+                 open(os.path.join(THIS_DIR, filepaths[1]), 'r', encoding='utf-8') as b:
+                cls.f_in[file] = a.read()
+                cls.f_json[file] = json.loads(b.read())
+
+
+    def test_proc_net_igmp_nodata(self):
+        """
+        Test 'proc_net_igmp' with no data
+        """
+        self.assertEqual(jc.parsers.proc_net_igmp.parse('', quiet=True), [])
+
+    def test_proc_net_igmp(self):
+        """
+        Test '/proc/net/igmp'
+        """
+        self.assertEqual(jc.parsers.proc_net_igmp.parse(self.f_in['proc_net_igmp'], quiet=True),
+                                                        self.f_json['proc_net_igmp'])
+
+    def test_proc_net_igmp_more(self):
+        """
+        Test '/proc/net/igmp' additional file
+        """
+        self.assertEqual(jc.parsers.proc_net_igmp.parse(self.f_in['proc_net_igmp_more'], quiet=True),
+                                                        self.f_json['proc_net_igmp_more'])
+
+
+if __name__ == '__main__':
+    unittest.main()