Add top level content for configuration and testing
Change-Id: I710f402988fe0c6c6fa6c4b100fbfa752e8835ee
diff --git a/testing.rst b/testing.rst
index e8830bf..70ba36d 100644
--- a/testing.rst
+++ b/testing.rst
@@ -1,11 +1,34 @@
Testing Guide
=============
+Test Infrastructure Overview
+----------------------------
+
+We implemented multiple types of tests in SD-Fabric.
+
+- **Unit Test**
+
+ - Verify codes at the level of methods or classes, and therefore covers a lot of details in a small scope.
+ - Run before merge as part of the CI/CD process of each component.
+
+- **Component Test**
+
+ - Verify a component with its dependencies as a whole.
+ - Run as sanity checks before merge as part of the CI/CD process of each component.
+
+- **System Integration Test**
+
+ - Verify the entire SD-Fabric solution,
+ involving multiple components and including various failure scenarios.
+ - Run nightly
+
+.. image:: images/test-overview.png
+ :width: 800px
.. toctree::
:maxdepth: 2
:glob:
- testing/system
testing/component
testing/pipeline
+ testing/system