diff --git a/tests/readme.rst b/tests/readme.rst
index fcc4d737f..139a6da2a 100644
--- a/tests/readme.rst
+++ b/tests/readme.rst
@@ -4,29 +4,37 @@ OpenMC Test Suite
 
 The purpose of this test suite is to ensure that OpenMC compiles using various
 combinations of compiler flags and options and that all user input options can
-be used successfully without breaking the code. The test suite is by no means
-complete and should not be viewed as a comprehensive unit test suite will full
-coverage. Until more effort can be put into actual unit testing, this suite is a
-simple means of making sure that new features added into the code don't break
-existing features.
+be used successfully without breaking the code. The test suite is based on
+regression or integrated testing where different types of input files are 
+configured and the full OpenMC code is executed. Results from simulations
+are compared with expected results. The test suite is comprised of many
+build configurations (e.g. debug, mpi, hdf5) and the actual tests which
+reside in sub-directories in the tests directory.
 
-The test suite is designed to run with the third-party Python package
-nose_. Running the test suite is as simple as going to the tests/ directory and
-running:
+The test suite is designed to integrate with cmake using ctest_. To run the
+full test suite run:
 
 .. sh::
-    nosetests
+    python run_tests.py
 
-However, usually testing is split into two parts: compilation and running. To
-run the compilation tests, use:
+A subset of build configurations and/or tests can be run. To see how to use
+the script run:
 
 .. sh::
-    nosetests test_compile
+    python run_tests.py --help
 
-Then, to run all the normal tests (which require that an OpenMC executable is
-already built):
+As an example, say we want to run all tests with debug flags only on tests
+that have cone and plot in their name. Also, we would like to run this on 
+4 processors. We can run:
 
 .. sh::
-    nosetests --exclude-dir=test_compile
+    python run_tests.py -j 4 -C debug -R "cone|plot"
 
-.. _nose: https://nose.readthedocs.org
+Note that standard regular expression syntax is used for selecting build
+configurations and tests. To print out a list of build configurations, we
+can run:
+
+.. sh::
+    python run_tests.py -p
+
+.. _ctest: http://www.cmake.org/cmake/help/v2.8.8/ctest.html