protected void updateClassloader() { if (theTest.isChanged()) { theSameTestForTheOtherClassLoader = (TestChromosome) theTest.clone(); ((DefaultTestCase) theSameTestForTheOtherClassLoader.getTestCase()) .changeClassLoader(TestGenerationContext.getInstance().getRegressionClassLoaderForSUT()); // ClassLoader a = theTest.getClass().getClassLoader(); // ClassLoader b = theSameTestForTheOtherClassLoader.getClass().getClassLoader(); // logger.warn("a {} b {} cl {} rcl // {}",a,b,TestGenerationContext.getInstance().getClassLoaderForSUT(),TestGenerationContext.getInstance().getRegressionClassLoaderForSUT()); } }
/* (non-Javadoc) * @see org.evosuite.ga.Chromosome#mutate() */ @Override public void mutate() { theTest.mutate(); if (theTest.isChanged()) { try { updateClassloader(); } catch (NoClassDefFoundError e) { String classname = e.getMessage(); if (classname != null) { // TODO: blacklist class } TestCase t = new DefaultTestCase(); theTest.setTestCase(t); updateClassloader(); return; } catch (Error e) { return; } catch (Throwable e) { return; } } }
@Override public boolean doSearch( TestChromosome individual, LocalSearchObjective<TestChromosome> objective) { logger.info("Test before local search: " + individual.getTestCase().toCode()); boolean improved = false; // Only apply local search up to the point where an exception was thrown // TODO: Check whether this conflicts with test expansion int lastPosition = individual.size() - 1; if (individual.getLastExecutionResult() != null && !individual.isChanged()) { Integer lastPos = individual.getLastExecutionResult().getFirstPositionOfThrownException(); if (lastPos != null) lastPosition = lastPos.intValue(); } TestCase test = individual.getTestCase(); // We count down to make the code work when lines are // added during the search (see NullReferenceSearch). for (int i = lastPosition; i >= 0; i--) { if (LocalSearchBudget.getInstance().isFinished()) break; if (objective.isDone()) { break; } if (i >= individual.size()) { logger.warn("Test size decreased unexpectedly during local search, aborting local search"); logger.warn(individual.getTestCase().toCode()); break; } final Class<?> targetClass = Properties.getTargetClassAndDontInitialise(); final Statement statement = test.getStatement(i); if (!test.hasReferences(statement.getReturnValue()) && !statement.getReturnClass().equals(targetClass)) { logger.info( "Return value of statement " + i + " is not referenced and not SUT, not doing local search"); continue; } StatementLocalSearch search = StatementLocalSearch.getLocalSearchFor(statement); if (search != null) { logger.info( "Applying local search of type " + search.getClass() + " to statement " + statement + " / " + individual.getTestCase().getStatement(i)); if (search.doSearch(individual, i, (LocalSearchObjective<TestChromosome>) objective)) { improved = true; } // i = s.getPosition(); logger.debug( "Old position was: " + i + ", adjusting to: " + (i + search.getPositionDelta())); i += search.getPositionDelta(); test = individual.getTestCase(); } else { /* * No statement local search has been produced for this * statement. Skipping. */ continue; } } LocalSearchBudget.getInstance().countLocalSearchOnTest(); // logger.warn("Test after local search: " + // individual.getTestCase().toCode()); // Return true iif search was successful return improved; // TODO: Handle arrays in local search // TODO: mutating an int might have an effect on array lengths }