Added eqcmini quickcheck library to lib/

lib/eqc/doc/overview.edoc

@@ -0,0 +1,39 @@
+@title QuickCheck Mini
+@version {@version}
+@copyright Quviq AB, 2006-2010.
+@doc 
+QuickCheck is a specification-based testing tool for Erlang. QuickCheck Mini is
+a powerful, but restricted version of QuickCheck. It is released free of charge for
+anyone interested in learning more about QuickCheck as well as for open source 
+developers that want to ship their code with simple QuickCheck properties.
+
+In order to learn more about QuickCheck, please visit http://www.quviq.com/.
+There is also a mailing list discussing QuickCheck issues, which you can subscribe to by sending an email to quickcheck-questions@quviq.com with subject "Subscribe".
+
+
+<h2>QuickCheck</h2>
+
+Programs
+are tested by writing <i>properties</i> in the source code, such as
+<pre>
+prop_reverse() ->
+  ?FORALL(Xs,list(int()),
+    lists:reverse(lists:reverse(Xs)) == Xs).
+</pre>
+Properties are tested by calling
+<pre>
+eqc:quickcheck(prop_reverse())
+</pre>
+which generates 100 random test cases and checks that the property
+returns <tt>true</tt> in every case.
+
+<p>
+Functions for writing properties are found in module {@link eqc},
+while functions for writing test data generators (such as
+<tt>list(int())</tt> above) are found in module {@link eqc_gen}. Parts
+of the interface are provided via macros, which are defined in
+<tt>eqc.hrl</tt>--this file should be included in every module which
+uses QuickCheck. This header file also imports much of the QuickCheck
+API, so it can be used without explicit module names.
+</p>
+