Add some UT test cases and fix pep8 errors for fetchimg

JIRA:QTIP-89

Change-Id: I623cd6e48d90996b0199f9b31f86c8844b4d5ceb
Signed-off-by: zhifeng.jiang <jiang.zhifeng@zte.com.cn>

1 files changed, 22 insertions, 0 deletions

diff --git a/tests/fetchimg_test.py b/tests/fetchimg_test.py
new file mode 100644
index 00000000..683c9701
--- /dev/null
+++ b/tests/fetchimg_test.py
@@ -0,0 +1,22 @@
+import mock
+from func.fetchimg import FetchImg
+
+
+class TestClass:
+    @mock.patch('func.fetchimg.os')
+    @mock.patch('func.fetchimg.os.path')
+    def test_fetch_img_success(self, mock_path, mock_os):
+        mock_os.system.return_value = True
+        mock_path.isfile.return_value = True
+        img = FetchImg()
+        img.download()
+
+    @mock.patch('func.fetchimg.time')
+    @mock.patch('func.fetchimg.os.system')
+    @mock.patch('func.fetchimg.os.path')
+    def test_fetch_img_fail(self, mock_path, mock_system, mock_time):
+        img = FetchImg()
+        mock_system.return_value = True
+        mock_path.isfile.side_effect = [False, True]
+        img.download()
+        assert mock_time.sleep.call_count == 2