fix(tests): modify EncoderService unittest

tests/test_encoder_service.py

@@ -9,15 +9,10 @@
 from gnes.service.base import ServiceManager
 from gnes.service.encoder import EncoderService
 from gnes.encoder.base import BaseEncoder
-from gnes.helper import train_required
 
 
-class DummyEncoder(BaseEncoder):
+class TestEncoder(BaseEncoder):
 
-    def train(self, *args, **kwargs):
-        pass
-
-    @train_required
     def encode(self, x):
         return np.array(x)
 
@@ -28,7 +23,7 @@ def setUp(self):
         self.test_numeric = np.random.randint(0, 255, (1000, 1024)).astype('float32')
 
     def test_empty_service(self):
-        args = set_encoder_parser().parse_args(['--yaml_path', '!DummyEncoder {gnes_config: {name: EncoderService, is_trained: True}}'])
+        args = set_encoder_parser().parse_args(['--yaml_path', '!TestEncoder {gnes_config: {name: EncoderService, is_trained: True}}'])
         c_args = _set_client_parser().parse_args([
             '--port_in', str(args.port_out),
             '--port_out', str(args.port_in)])