linprog general tests added

1 files changed, 68 insertions, 0 deletions

diff --git a/tests/unit_tests/linprog.tst b/tests/unit_tests/linprog.tst
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+// Copyright (C) 2015 - IIT Bombay - FOSSEE
+//
+// Author: Guru Pradeep Reddy, Bhanu Priya Sayal
+// Organization: FOSSEE, IIT Bombay
+// Email: toolbox@scilab.in
+//
+// This file must be used under the terms of the CeCILL.
+// This source file is licensed as described in the file COPYING, which
+// you should have received as part of this distribution.  The terms
+// are also available at
+// http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+
+// <-- JVM NOT MANDATORY -->
+// <-- ENGLISH IMPOSED -->
+
+
+//
+// assert_close --
+//   Returns 1 if the two real matrices computed and expected are close,
+//   i.e. if the relative distance between computed and expected is lesser than epsilon.
+// Arguments
+//   computed, expected : the two matrices to compare
+//   epsilon : a small number
+//
+function flag = assert_close ( computed, expected, epsilon )
+  if expected==0.0 then
+    shift = norm(computed-expected);
+  else
+    shift = norm(computed-expected)/norm(expected);
+  end
+//  if shift < epsilon then
+//    flag = 1;
+//  else
+//    flag = 0;
+//  end
+//  if flag <> 1 then pause,end
+    flag = assert_checktrue ( shift < epsilon );
+endfunction
+//
+// assert_equal --
+//   Returns 1 if the two real matrices computed and expected are equal.
+// Arguments
+//   computed, expected : the two matrices to compare
+//   epsilon : a small number
+//
+//function flag = assert_equal ( computed , expected )
+//  if computed==expected then
+//    flag = 1;
+//  else
+//    flag = 0;
+//  end
+//  if flag <> 1 then pause,end
+//endfunction
+
+//Linear program with all constraint types
+c=[-1,-1/3]'
+A=[1,1;1,1/4;1,-1;-1/4,-1;-1,-1;-1,1]
+b=[2,1,2,1,-1,2]
+Aeq=[1,1/4]
+beq=[1/2]
+lb=[-1,-0.5]
+ub=[1.5,1.25]
+[xopt,fopt,exitflag,output,lambda]=linprog(c, A, b, Aeq, beq, lb, ub)
+
+assert_close ( xopt , [ 0.1875 1.25 ]' , 0.0005 );
+assert_close ( fopt , [ -0.6041667 ]' , 0.0005 );
+assert_checkequal( exitflag , 0 );
+printf("Test Successful");