diff --git a/tests/test_component/test_task.py b/tests/test_component/test_task.py
index <HASH>..<HASH> 100755
--- a/tests/test_component/test_task.py
+++ b/tests/test_component/test_task.py
@@ -28,13 +28,13 @@ def test_task_initialization():
 
     t = Task()
 
-    assert t._uid                             is None
-    assert t.name                             is None
+    assert t._uid                             == 'task.0000'
+    assert t.name                             == ''
 
     assert t.state                            == states.INITIAL
     assert t.state_history                    == [states.INITIAL]
 
-    assert t.executable                       is None
+    assert t.executable                       == ''
     assert t.arguments                        == list()
     assert t.pre_exec                         == list()
     assert t.post_exec                        == list()
@@ -57,8 +57,8 @@ def test_task_initialization():
     assert t.move_input_data                  == list()
     assert t.download_output_data             == list()
 
-    assert t.stdout                           is None
-    assert t.stderr                           is None
+    assert t.stdout                           == ''
+    assert t.stderr                           == ''
     assert t.exit_code                        is None
     assert t.tag                              is None
     assert t.path                             is None
default vaules changed in validataion