Create test_xcvr_api_factory.py

Add pytest for xcvc_api_factory file

tests/sonic_xcvr/test_xcvr_api_factory.py

@@ -0,0 +1,52 @@
+from unittest.mock import patch
+from mock import MagicMock
+from io import BytesIO
+import pytest
+import traceback
+import random
+from sonic_platform_base.sonic_xcvr.api.public.cmis import CmisApi
+from sonic_platform_base.sonic_xcvr.api.credo.aec_800g import CmisAec800gApi
+from sonic_platform_base.sonic_xcvr.mem_maps.public.cmis import CmisMemMap
+from sonic_platform_base.sonic_xcvr.mem_maps.credo.aec_800g import CmisAec800gMemMap
+from sonic_platform_base.sonic_xcvr.xcvr_eeprom import XcvrEeprom
+from sonic_platform_base.sonic_xcvr.codes.public.cmis import CmisCodes
+from sonic_platform_base.sonic_xcvr.codes.credo.aec_800g import CmisAec800gCodes
+from sonic_platform_base.sonic_xcvr.codes.public.sff8024 import Sff8024
+from sonic_platform_base.sonic_xcvr.fields import consts
+from sonic_platform_base.sonic_xcvr.xcvr_api_factory import XcvrApiFactory
+
+class BytesMock(bytes):
+    def decode(self, encoding='utf-8', errors='strict'):
+        return 'DecodedCredo'
+
+class TestXcvrApiFactory(object):
+    read_eeprom = MagicMock
+    write_eeprom = MagicMock
+    api = XcvrApiFactory(read_eeprom, write_eeprom)
+
+    def test_get_vendor_name(self):
+        self.api.reader = MagicMock()
+        self.api.reader.return_value = b'Credo'
+        with patch.object(BytesMock, 'decode', return_value='DecodedCredo'):
+            result = self.api._get_vendor_name()
+        assert result == 'Credo'.strip()
+
+    def test_get_vendor_part_num(self):
+        self.api.reader = MagicMock()
+        self.api.reader.return_value = b'CAC81X321M2MC1MS'
+        with patch.object(BytesMock, 'decode', return_value='DecodedCAC81X321M2MC1MS'):
+            result = self.api._get_vendor_part_num()
+        assert result == 'CAC81X321M2MC1MS'.strip()
+
+    def test_create_xcvrd_api(self):
+        self._get_id = MagicMock()
+        self._get_id.side_effect = 0x18
+        self._get_vendor_name= MagicMock()
+        self._get_vendor_name.side_effect = 'Credo'
+        self._get_vendor_part_num = MagicMock()
+        self._get_vendor_part_num.side_effect = 'CAC81X321M2MC1MS'
+        CmisAec800gCodes = MagicMock()
+        CmisAec800gMemMap = MagicMock()
+        XcvrEeprom = MagicMock()
+        CmisAec800gApi = MagicMock()
+        self.api.create_xcvr_api()