advertise kwant.test() in README

INSTALL

@@ -24,12 +24,15 @@ The following software is highly recommended though not strictly required:
    footprint.  (kwant uses only the sequential, single core version
    of MUMPS.  The advantages due to MUMPS as used by kwant are thus independent
    of the number of CPU cores of the machine on which kwant runs.)
+ * The `nose <http://nose.readthedocs.org/>`_ testing framework for running the
+   tests included with kwant.
 
 In addition, to build a copy of kwant that has been checked-out directly from
 version control (git), you will also need `Cython <http://cython.org/>`_ 0.17.1
 or newer.  You do not need Cython to build kwant that has been unpacked from a
 source .tar.gz-file.
 
+
 Generic instructions
 ====================
 
@@ -45,11 +48,9 @@ in the root directory of the kwant distribution. ::
 Depending on your system, you might have to run the second command with
 administrator privileges (e.g. prefixing it with ``sudo``).
 
-To check successful installation try executing some scripts in the ``tutorial``
-subdirectory, e.g.::
+After installation, tests can be run with::
 
-    cd tutorial
-    python 1-quantum_wire_revisited.py
+    python -c 'import kwant; kwant.test()'
 
 
 System-specific instructions
@@ -66,7 +67,8 @@ or newer.  For other systems step 1 will likely have to be adapted.  If
 1. Install the required packages by running the command ::
 
        sudo apt-get install python-dev python-scipy python-matplotlib \
-       g++ gfortran libopenblas-dev liblapack-dev libmumps-scotch-dev
+       python-nose g++ gfortran libopenblas-dev liblapack-dev \
+       libmumps-scotch-dev
 
 2. Unpack tinyarray, enter its directory. To build and install, run ::
 
@@ -263,8 +265,3 @@ Some conventions to keep in mind:
 
 Several modules are written in `Cython <http://cython.org/>`_ (.pyx file name
 extension).  You will need Cython if you want to modify them.
-
-kwant includes extensive unit tests which are supposed to cover all of its
-functionality.  We use the `nose <http://nose.readthedocs.org/>`_ testing
-framework.  To run the tests, execute the command ``nosetests`` from the root
-directory of the package after it has been built in place.