tests: test unsupported remote

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

dvc/exceptions.py

@@ -11,3 +11,9 @@ class DvcException(Exception):
             except Exception:
                 pass
         super(DvcException, self).__init__(msg)
+
+
+class UnsupportedRemoteError(DvcException):
+    def __init__(self, config, cause=None):
+        msg = "Remote '{}' is not supported.".format(config)
+        super(UnsupportedRemoteError, self).__init__(msg, cause=cause)

dvc/remote/__init__.py

@@ -6,7 +6,7 @@ from dvc.remote.ssh import RemoteSSH
 from dvc.remote.azure import RemoteAzure
 
 from dvc.config import Config
-from dvc.exceptions import DvcException
+from dvc.exceptions import UnsupportedRemoteError
 
 
 REMOTES = [RemoteHDFS, RemoteSSH, RemoteS3, RemoteGS, RemoteAzure, RemoteLOCAL]
@@ -24,4 +24,4 @@ def Remote(project, config):
     for r in REMOTES:
         if r.supported(config):
             return r(project, config)
-    raise DvcException('Remote \'{}\' is not supported.'.format(config))
+    raise UnsupportedRemoteError(str(config))

tests/test_remote.py

@@ -1,5 +1,8 @@
 from dvc.main import main
 from dvc.command.remote import CmdRemoteAdd
+from dvc.exceptions import UnsupportedRemoteError
+from dvc.remote import Remote
+from dvc.config import Config
 
 from tests.basic_env import TestDvc
 
@@ -34,3 +37,7 @@ class TestRemote(TestDvc):
         cmd.configobj.write = None 
         ret = cmd.run()           
         self.assertNotEqual(ret, 0)
+
+    def test_unsupported(self):
+        with self.assertRaises(UnsupportedRemoteError):
+            Remote(self.dvc, {Config.SECTION_REMOTE_URL: 'unsupported://url')