Add AAI Unit Tests

This change includes the addition of Unit Tests for A&AI component
and the required refactor process in their functions

Change-Id: Ib3b1109e7e80d5ef51e682445b7ecbf600bf3e62
Signed-off-by: Victor Morales <victor.morales@intel.com>
diff --git a/bootstrap/vagrant-onap/lib/functions b/bootstrap/vagrant-onap/lib/functions
index 7e6ff2e..eeced5a 100755
--- a/bootstrap/vagrant-onap/lib/functions
+++ b/bootstrap/vagrant-onap/lib/functions
@@ -129,7 +129,9 @@
 # _install_pip() - Install Python Package Manager
 function _install_pip {
     install_python
-    curl -sL https://bootstrap.pypa.io/get-pip.py | python
+    if [ ! -f /usr/local/bin/pip ]; then
+        curl -sL https://bootstrap.pypa.io/get-pip.py | python
+    fi
 }
 
 # install_python_package() - Install a python module