tests: Add unit tests framework
Change-Id: I962cc634aa21cd81265a6c68990049c87b99c2d3
Refs: #2369
diff --git a/tests/unit-tests/README.md b/tests/unit-tests/README.md
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+ndnSIM unit tests
+=================
+
+ndnSIM uses [Boost Unit Test Framework](http://www.boost.org/doc/libs/1_48_0/libs/test/doc/html/index.html)
+for testing features of the implementation.
+
+ndnSIM unit tests should be placed into `ndnSIM/tests/unit-tests/` folder. All `.cpp` files placed
+in this folder will be automatically compiled together.
+
+Running unit-tests
+------------------
+
+To run unit tests, NS-3 and ndnSIM need to be configured and build with the unit test support. To
+enable both general NS-3 unit tests and ndnSIM unit tests, add `--enable-tests` during configuration
+phase. For example, run the following from the NS-3 root folder:
+
+ ./waf configure --enable-tests
+ ./waf build
+
+To run unit tests:
+
+ ./waf --run ndnSIM-unit-tests