svn commit: r808312 - /commons/proper/math/trunk/src/test/java/org/apache/commons/math/optimization/linear/SimplexSolverTest.java

[luc]

Author: luc
Date: Thu Aug 27 08:05:01 2009
New Revision: 808312

URL: http://svn.apache.org/viewvc?rev=808312&view=rev
Log:
added tests for both the <= and the >= versions of the constraints
one leads to 0 as a solution, the other one leads to no feasible solution
JIRA: MATH-290

Modified:
    
commons/proper/math/trunk/src/test/java/org/apache/commons/math/optimization/linear/SimplexSolverTest.java

Modified: 
commons/proper/math/trunk/src/test/java/org/apache/commons/math/optimization/linear/SimplexSolverTest.java
URL: 
http://svn.apache.org/viewvc/commons/proper/math/trunk/src/test/java/org/apache/commons/math/optimization/linear/SimplexSolverTest.java?rev=808312&r1=808311&r2=808312&view=diff
==============================================================================
--- 
commons/proper/math/trunk/src/test/java/org/apache/commons/math/optimization/linear/SimplexSolverTest.java
 (original)
+++ 
commons/proper/math/trunk/src/test/java/org/apache/commons/math/optimization/linear/SimplexSolverTest.java
 Thu Aug 27 08:05:01 2009
@@ -75,13 +75,24 @@
     }
 
     @Test
-    public void testMath290() throws OptimizationException {
+    public void testMath290GEQ() throws OptimizationException {
         LinearObjectiveFunction f = new LinearObjectiveFunction(new double[] { 
1, 5 }, 0 );
         Collection<LinearConstraint> constraints = new 
ArrayList<LinearConstraint>();
         constraints.add(new LinearConstraint(new double[] { 2, 0 }, 
Relationship.GEQ, -1.0));
         SimplexSolver solver = new SimplexSolver();
         RealPointValuePair solution = solver.optimize(f, constraints, 
GoalType.MINIMIZE, true);
-        assertNotNull(solution);
+        assertEquals(0, solution.getValue(), .0000001);
+        assertEquals(0, solution.getPoint()[0], .0000001);
+        assertEquals(0, solution.getPoint()[1], .0000001);
+    }
+
+    @Test(expected=NoFeasibleSolutionException.class)
+    public void testMath290LEQ() throws OptimizationException {
+        LinearObjectiveFunction f = new LinearObjectiveFunction(new double[] { 
1, 5 }, 0 );
+        Collection<LinearConstraint> constraints = new 
ArrayList<LinearConstraint>();
+        constraints.add(new LinearConstraint(new double[] { 2, 0 }, 
Relationship.LEQ, -1.0));
+        SimplexSolver solver = new SimplexSolver();
+        solver.optimize(f, constraints, GoalType.MINIMIZE, true);
     }
 
     @Test