diff --git a/tests/test_ova_downloader.py b/tests/test_ova_downloader.py
new file mode 100644
index 0000000..6fc735c
--- /dev/null
+++ b/tests/test_ova_downloader.py
@@ -0,0 +1,70 @@
+import jenkins
+import unittest
+import requests
+from ova_downloader import get_last_build_template_url, download_ova
+from unittest.mock import patch
+import os
+
+
+class MockRequests:
+    headers = {'content-length': '9'}
+
+    @staticmethod
+    def close():
+        return
+
+    @staticmethod
+    def iter_content(block_size):
+        return
+
+
+class LastBuildUrl(unittest.TestCase):
+    @patch.object(jenkins.Jenkins, 'get_job_info')
+    def test_get_build(self, mocked_get_job_info):
+        result = {'lastSuccessfulBuild': {'url': ''}}
+        mocked_get_job_info.return_value = result
+        self.assertTrue(get_last_build_template_url)
+
+    @patch.object(jenkins.Jenkins, 'get_job_info')
+    def test_key_error_get_build(self, mocked_get_job_info):
+        result = {'lastSuccessfulBuild': {}}
+        mocked_get_job_info.return_value = result
+        with self.assertRaises(KeyError):
+            get_last_build_template_url()
+
+
+class DownloadOva(unittest.TestCase):
+
+    @patch('ova_downloader.tqdm')
+    @patch('ova_downloader.get_last_build_template_url')
+    @patch('ova_downloader.requests.get')
+    def test_fail_to_download_ova(self, mocked_get, mock_last_build, mock_tqdm):
+        mock_last_build.return_value = ''
+        mocked_get.get.return_value = MockRequests
+        cont_length = int(mocked_get.get.return_value.headers.get('content-length'))
+        mock_tqdm.return_value = [bytes(str(i), 'utf8') for i in range(cont_length)]
+        with self.assertRaises(EnvironmentError):
+            download_ova(dir_path=os.getcwd())
+
+    @patch('ova_downloader.get_last_build_template_url')
+    @patch('ova_downloader.requests.get')
+    def test_env_error(self, mocked_get, mock_last_build):
+        mock_last_build.return_value = ''
+        mocked_get.get.return_value = MockRequests
+        with self.assertRaises(EnvironmentError):
+            download_ova(dir_path='{}/folder_not_exist'.format(os.getcwd()))
+
+    @patch('ova_downloader.tqdm')
+    @patch('ova_downloader.get_last_build_template_url')
+    @patch('ova_downloader.requests.get')
+    def test_download_ova_passed(self, mocked_get, mock_last_build, mock_tqdm):
+        mock_last_build.return_value = ''
+        mocked_get.return_value = MockRequests
+        cont_length = int(mocked_get.return_value.headers.get('content-length'))
+        mock_tqdm.return_value = (bytes(str(i), 'utf8') for i in range(cont_length))
+        self.assertIsNone(download_ova(dir_path=os.getcwd()))
+
+
+if __name__ == '__main__':
+    unittest.main()
+
diff --git a/tests/test_vaclient.py b/tests/test_vaclient.py
new file mode 100644
index 0000000..e31605b
--- /dev/null
+++ b/tests/test_vaclient.py
@@ -0,0 +1,79 @@
+import unittest
+from unittest import mock
+import paramiko
+from unittest.mock import patch
+
+from vaclient import VAClient
+
+
+class FakeTransport:
+    def __init__(self):
+        self.active = True
+        self.o_session = True
+
+    def is_active(self):
+        return self.active
+
+    def open_session(self):
+        return self
+
+    def recv(self, lol):
+        return 'hello world'
+
+
+class FakeChannel:
+
+    def __init__(self, closed=True):
+        self.closed = closed
+
+    @property
+    def channel(self):
+        return self
+
+    def recv_exit_status(self):
+        return 0
+
+    def readlines(self):
+        return 'channel stdout'
+
+
+class FakeSSHClient:
+    def __init__(self):
+        self.transport = FakeTransport
+        # self.raise_exception = raise_exception
+        # self.excaption_name = excaption_name
+
+    def connect(self, *args):
+        pass
+
+    def set_missing_host_key_policy(self, policy):
+        pass
+
+    def exec_command(self, cmd, get_pty=True):
+        return (FakeChannel(),
+                FakeChannel(),
+                FakeChannel())
+
+    def get_transport(self):
+        return FakeTransport()
+
+    def close(self):
+        pass
+
+    def __call__(self, *args, **kwargs):
+        pass
+
+
+class TestPar(unittest.TestCase):
+    def test_connect_is_created(self):
+        with mock.patch.object(paramiko,
+                               'SSHClient',
+                               mock.Mock(return_value=FakeSSHClient())):
+
+            con = VAClient(ip='192.168.242.22')
+            self.assertTrue(con.connect())
+
+
+if __name__ == '__main__':
+    unittest.main()
+