Rename folder xunit to tests and update readmes

Author: Tuomas Sivula

README.txt

@@ -75,7 +75,7 @@ Table of contents:
 3. CONTENTS
 
    The GPstuff packge contains the following subdirectories:
-   diag  dist  gp  mc  misc  optim  xunit  SuiteSparse
+   diag  dist  gp  mc  misc  optim  tests  SuiteSparse
 
    Each folder contains Contents.m, which summarizes the functions
    in the folder. 
@@ -85,11 +85,12 @@ Table of contents:
 
 4. TESTING THE INSTALLATION
 
-   Installation can be tested by running command test_all, which
-   runs all demos and compares the computed results to pre-saved
-   results. Running test_all takes about one hour and it requires
-   that 'xunit' toolbox is in the Matlab path. xunit package can be
-   downloaded from
+   Installation can be tested by running command runtestset('fast'), which
+   runs a collection of demos and compares the computed results to pre-saved
+   results. Running this takes about one hour and it requires Matlab version
+   2013b or greater for the unit test framework. For older versions, the
+   'xunit' package can be used instead. The xunit package can be downloaded
+   from
    http://www.mathworks.com/matlabcentral/fileexchange/22846-matlab-xunit-test-framework
 
 5. USER QUIDE (VERY SHORT)

matlab_install.m

@@ -74,7 +74,7 @@ function matlab_install(SuiteSparse_path)
     S{4} = [PP '/mc']; 
     S{5} = [PP '/misc']; 
     S{6} = [PP '/optim']; 
-    S{7} = [PP '/xunit']; 
+    S{7} = [PP '/tests']; 
 
     fprintf ('\n The following paths have been added.  You may wish to add them\n') ;
     fprintf ('permanently, using the MATLAB pathtool command or copying the below\n') ;

startup.m

@@ -3,9 +3,9 @@
 F = mfilename;
 S = which(F);
 if exist('OCTAVE_VERSION', 'builtin')
-  subfolders={'diag' 'dist' 'gp' 'mc' 'misc' 'optim' 'xunit', 'octave_compat', 'inputparser'};
+  subfolders={'diag' 'dist' 'gp' 'mc' 'misc' 'optim' 'tests', 'octave_compat', 'inputparser'};
 else
-  subfolders={'diag' 'dist' 'gp' 'mc' 'misc' 'optim' 'xunit'};
+  subfolders={'diag' 'dist' 'gp' 'mc' 'misc' 'optim' 'tests'};
 end
 for sf=subfolders
   addpath(strrep(S,[F '.m'],sf{:}))
@@ -21,7 +21,7 @@
 %addpath([gpstuffroot 'mc'])
 %addpath([gpstuffroot 'misc'])
 %addpath([gpstuffroot 'optim'])
-%addpath([gpstuffroot 'xunit'])
+%addpath([gpstuffroot 'tests'])
 
 % If using Octave version of GPstuff, also add the following
 %addpath([gpstuffroot 'inputparser'])

tests/Readme.txt

@@ -0,0 +1,27 @@
+This directory contains unit test for GPstuff. The tests can be run using
+the built-in unit test framewoork (Matlab 2013b or greater) or using the
+xUnit package by Steve Eddins.
+
+Test structure in every test is basically the same: Run demo, save values
+from demo, compare those saved test values to previously saved "correct"
+values. Users can run these tests to determine if some calculations within
+demos don't give correct answers.
+
+Tests are named test_<demo_name>.m (e.g. test_binomial.m is a corresponding
+test for demo_binomial1.m) and they can include multiple test cases each.
+Individual tests can be run with command "runtests <test_file_name>".
+Function runtestset can be used to run all the tests or a predetermined set
+of tests.
+
+When a test is run, the results of the demo are saved into the folder
+testValues. The saved components include figures, selected workspace
+variables and the log file of the command line output. Folder realValues
+contain similar precomputed files for each demo.
+
+For more information to the MATLAB unit testing framework, see Matlab
+documentation.
+
+For more information to the xUnit Test Framework package, visit 
+http://www.mathworks.com/matlabcentral/fx_files/22846/11/content/matlab_xunit/doc/xunit_product_page.html
+
+Real values from revision 990.

xunit/realValues/binomial1.mat renamed to tests/realValues/binomial1.mat

@@ -217,7 +217,7 @@ function rundemo(name, varToSave, mode)
   throw(ME)
 end
 
-fprintf('Results saved into the folder ''xunit/%sValues/''\n\n', ...
+fprintf('Results saved into the folder ''tests/%sValues/''\n\n', ...
   run_demo_data.mode)
 
 end

xunit/realValues/binomial1.txt renamed to tests/realValues/binomial1.txt

@@ -2,7 +2,7 @@
 %RUNTESTSET  Run a set of tests in GPstuff.
 %
 %  Description
-%    LOG = RUN_GP_TESTS(MODE) runs a set of tests in xunit folder and
+%    LOG = RUN_GP_TESTS(MODE) runs a set of tests in tests folder and
 %    returns the test log. Each of the tests runs corresponding demo
 %    and compares the values to previously saved ones for errors. This is
 %    useful e.g. in case user modifies functions provided by GPstuff.