add tox framework for pep8 and unittest

Change-Id: If783d387c29dad7fa472578ead2bcd5a6d42ee70
Signed-off-by: SerenaFeng <feng.xiaowei@zte.com.cn>

3 files changed, 2 insertions, 0 deletions

diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/tests/__init__.py
diff --git a/tests/unit/__init__.py b/tests/unit/__init__.py
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/tests/unit/__init__.py
diff --git a/tests/unit/test_placeholder.py b/tests/unit/test_placeholder.py
new file mode 100644
index 00000000..457e464c
--- /dev/null
+++ b/tests/unit/test_placeholder.py
@@ -0,0 +1,2 @@
+def test_holder():
+    assert True