Changeset 1427:57abff252556 in lemon for test/lp_test.cc
 Timestamp:
 01/20/21 16:17:21 (19 months ago)
 Branch:
 default
 Phase:
 public
 File:

 1 edited
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test/lp_test.cc
r1337 r1427 340 340 check(lp.sense() == lp.MAX,"This is a maximization!"); 341 341 check(lp.coeff(upright,x1)==1,"The coefficient in question is 1!"); 342 check(lp.coeff(upright,x2)==2,"The coefficient in question is 1!"); 342 343 check(lp.colLowerBound(x1)==0, 343 344 "The lower bound for variable x1 should be 0."); … … 425 426 } 426 427 428 template<class LP> 429 void rangeConstraintTest() 430 { 431 LP lp; 432 // Add two columns (variables) to the problem 433 typename LP::Col x1 = lp.addCol(); 434 typename LP::Col x2 = lp.addCol(); 435 // Add rows (constraints) to the problem 436 lp.addRow(x1  5 <= x2); 437 lp.addRow(0 <= 2 * x1 + x2 <= 25); 438 439 // Set lower and upper bounds for the columns (variables) 440 lp.colLowerBound(x1, 0); 441 lp.colUpperBound(x2, 10); 442 443 // Specify the objective function 444 lp.max(); 445 lp.obj(5 * x1 + 3 * x2); 446 447 // Solve the problem using the underlying LP solver 448 lp.solve(); 449 // Print the results 450 check(lp.primalType() == LP::OPTIMAL, "Optimal solution is not found"); 451 check(lp.primal() <= 67.501 && lp.primal() >= 67.499, "Wrong objective value"); 452 check(lp.primal(x1) <= 7.501 && lp.primal(x1) >= 7.499, "Wrong value for x1"); 453 check(lp.primal(x2) <= 10.001 && lp.primal(x2) >= 9.999, "Wrong value for x2"); 454 } 455 427 456 int main() 428 457 { … … 445 474 aTest(lp_glpk2); 446 475 cloneTest<GlpkLp>(); 476 rangeConstraintTest<GlpkLp>(); 447 477 } 448 478 #endif … … 454 484 aTest(lp_cplex2); 455 485 cloneTest<CplexLp>(); 486 rangeConstraintTest<CplexLp>(); 456 487 } catch (CplexEnv::LicenseError& error) { 457 488 check(false, error.what()); … … 465 496 aTest(lp_soplex2); 466 497 cloneTest<SoplexLp>(); 498 rangeConstraintTest<Soplex>(); 467 499 } 468 500 #endif … … 474 506 aTest(lp_clp2); 475 507 cloneTest<ClpLp>(); 508 rangeConstraintTest<ClpLp>(); 476 509 } 477 510 #endif
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