test: add test for Updater

Signed-off-by: Ruslan Kuprieiev <[email protected]>

tests/test_updater.py

@@ -0,0 +1,18 @@
+import os
+
+from dvc.updater import Updater
+
+from tests.basic_env import TestDvc
+
+
+class TestDvcUpdater(TestDvc):
+    def test(self):
+        # NOTE: need to temporarily unset CI env to allow updater to work
+        env = os.environ.copy()
+        os.environ['CI'] = 'False'
+
+        self.dvc.updater.check()
+        self.dvc.updater.check()
+        self.dvc.updater.check()
+
+        os.environ = env