1 files changed, 46 insertions, 0 deletions
diff --git a/tests/general_tests/intfmincon/intfmincon_grad2.sce b/tests/general_tests/intfmincon/intfmincon_grad2.sce
new file mode 100644
index 0000000..dac2a82
--- /dev/null
+++ b/tests/general_tests/intfmincon/intfmincon_grad2.sce
@@ -0,0 +1,46 @@
+
+//User defined gradient function does not return a vector 
+
+function y=f(x)
+  y=x(1)*x(2)+x(2)*x(3);
+endfunction
+   
+x0=[1,1,1];
+A=[];
+b=[];
+Aeq=[];
+beq=[];
+lb=[0 0.2,-%inf];
+ub=[0.6 %inf,1];
+intcon=[1,2];
+
+//  !--error 10000 
+// intfmincon_options: Expected type ["string"] for input argument GradObj at input #6, but got "function" instead.
+// at line      56 of function Checktype called by :  
+// at line     359 of function intfmincon called by :  
+// [x,fval,exitflag,grad,hessian] =intfmincon(f,x0,intcon,A,b,Aeq,beq,lb,ub,nlc,options)
+// at line      44 of exec file called by :    
+// exec intfmincon_grad2.sce
+	  
+function [c,ceq]=nlc(x)
+  c=[x(1)^2-1,x(1)^2+x(2)^2-1,x(3)^2-1];
+  ceq=[x(1)^3-0.5,x(2)^2+x(3)^2-0.75];
+endfunction
+  	
+function y= fGrad(x)
+  //y is not a vector here
+  y= [x(2),x(1)+x(3);x(2),x(1)];
+endfunction
+  	  
+function y= lHess(x,obj,lambda)
+  y= obj*[0,1,0;1,0,1;0,1,0] + lambda(1)*[2,0,0;0,0,0;0,0,0] + lambda(2)*[2,0,0;0,2,0;0,0,0] +lambda(3)*[0,0,0;0,0,0;0,0,2] + lambda(4)*[6*x(1),0,0;0,0,0;0,0,0] + lambda(5)*[0,0,0;0,2,0;0,0,2];
+endfunction
+  
+function [cg,ceqg] = cGrad(x)
+  cg = [2*x(1),0,0;2*x(1),2*x(2),0;0,0,2*x(3)];
+  ceqg = [3*x(1)^2,0,0;0,2*x(2),2*x(3)];
+endfunction
+  
+options=list("MaxIter", [1500], "CpuTime", [500], "GradObj", fGrad, "Hessian", lHess,"GradCon",cGrad);
+
+[x,fval,exitflag,grad,hessian] =intfmincon(f,x0,intcon,A,b,Aeq,beq,lb,ub,nlc,options)