Write tests for dvc version

tests/func/test_version.py

@@ -0,0 +1,20 @@
+from dvc.main import main
+from dvc.command.version import CmdVersion
+from dvc.cli import parse_args
+
+from tests.basic_env import TestDvc
+
+
+class TestVersion(TestDvc):
+    def test_run(self):
+        ret = main(["version"])
+        self.assertEqual(ret, 0)
+
+
+def test_info(dvc, mocker, caplog):
+    cmd = CmdVersion(parse_args(["version"]))
+    cmd.run()
+    for record in caplog.records:
+        assert "DVC version" in record.msg
+        assert "Python version" in record.msg
+        assert "Platform" in record.msg