Readd test in __init__

IPython/__init__.py

@@ -48,6 +48,7 b' from .core.application import Application'
 from .terminal.embed import embed
 
 from .core.interactiveshell import InteractiveShell
+from .testing import test
 from .utils.sysinfo import sys_info
 from .utils.frame import extract_module_locals
 
@@ -141,4 +142,4 b' def start_kernel(argv=None, **kwargs):'
     """
     from IPython.kernel.zmq.kernelapp import launch_new_instance
     return launch_new_instance(argv=argv, **kwargs)
-    
  No newline at end of file
+