diff --git a/tests/test_b2shareoperator.py b/tests/test_b2shareoperator.py
index f873cc04d6b348a71592c6279979d711461d7a5e..3a28ea31f5ddf465217aac9244fbc9492bcc23a0 100644
--- a/tests/test_b2shareoperator.py
+++ b/tests/test_b2shareoperator.py
@@ -3,6 +3,8 @@ from unittest.mock import Mock, patch
 import tempfile
 import os
 
+from airflow.utils.state import DagRunState
+from airflow.utils.types import DagRunType
 from airflow import DAG
 from airflow.models.taskinstance import TaskInstance
 from airflow.utils.dates import days_ago
@@ -14,18 +16,18 @@ from dags.b2shareoperator import (B2ShareOperator, download_file,
 
 DEFAULT_DATE = '2019-10-03'
 TEST_DAG_ID = 'test_my_custom_operator'
+TEST_TASK_ID = 'test'
 
 
 class B2ShareOperatorTest(unittest.TestCase):
     def setUp(self):
-        self.dag = DAG(TEST_DAG_ID, schedule_interval='@daily',
-                       default_args={'start_date': days_ago(2)}, params={"oid": "111"})
-        self.op = B2ShareOperator(
-            dag=self.dag,
-            task_id='test',
-            name='test_name'
-        )
-        self.ti = TaskInstance(task=self.op, execution_date=days_ago(1))
+        with DAG(TEST_DAG_ID, schedule_interval='@daily', default_args={'start_date': days_ago(2)}, params={"oid": "111"}) as dag:
+            B2ShareOperator(
+                task_id=TEST_TASK_ID,
+                name='test_name'
+            )
+        self.dag = dag
+        #self.ti = TaskInstance(task=self.op, execution_date=days_ago(1))
 
     @patch('dags.b2shareoperator.HttpHook')
     @patch('dags.b2shareoperator.get_file_list')
@@ -34,18 +36,21 @@ class B2ShareOperatorTest(unittest.TestCase):
         gfl.return_value = {'ooo.txt': 'htt://file/to/download'}
         down.return_value = 'tmp_name'
 
-        self.ti.run(ignore_ti_state=True, test_mode=True)
-        print(self.ti.state)
+        dagrun = self.dag.create_dagrun(state=DagRunState.RUNNING, run_id=TEST_DAG_ID, run_type=DagRunType.MANUAL)
+        ti = dagrun.get_task_instance(task_id=TEST_TASK_ID)
+        ti.task = self.dag.get_task(task_id=TEST_TASK_ID)
+        ti.run(ignore_ti_state=True)
+        print(ti.state)
 
-        self.assertEqual(State.SUCCESS, self.ti.state)
+        self.assertEqual(State.SUCCESS, ti.state)
 
         # return value
-        ret = self.ti.xcom_pull()
+        ret = ti.xcom_pull()
         self.assertEqual(ret, 1, f"{ret}")
 
-        lcl = self.ti.xcom_pull(key='local')
-        rmt = self.ti.xcom_pull(key='remote')
-        mps = self.ti.xcom_pull(key='mappings')
+        lcl = ti.xcom_pull(key='local')
+        rmt = ti.xcom_pull(key='remote')
+        mps = ti.xcom_pull(key='mappings')
         self.assertEqual(len(mps), 1, f"{mps}")
         self.assertDictEqual(
             mps, {'ooo.txt': 'tmp_name'}, f"unexpecting mappings: {mps}")
diff --git a/tests/test_dag.py b/tests/test_dag.py
index 3a91270f2cc59f8e66c12577c60b767b90ed3c7b..360a6987757d05da99b8448ca6303b215a18bb6b 100644
--- a/tests/test_dag.py
+++ b/tests/test_dag.py
@@ -10,7 +10,8 @@ class TestADag(unittest.TestCase):
 
     def test_dag_loaded(self):
         dag = self.dagbag.get_dag(dag_id='firsto')
-        assert self.dagbag.import_errors == {}
+        print(self.dagbag.import_errors)
+        self.assertDictEqual(self.dagbag.import_errors, {}, "not equal")
         assert dag is not None
         self.assertEqual(len(dag.tasks), 2, f"Actually: {len(dag.tasks)}")