KaneAI - World’s First E2E Software Testing Agent.Signup for Private Beta Join TestMu Conference

How to use cannotHandle method of org.evomaster.client.java.controller.internal.db.HeuristicsCalculator class

Best EvoMaster code snippet using org.evomaster.client.java.controller.internal.db.HeuristicsCalculator.cannotHandle

Source:HeuristicsCalculator.java

...104        }105        if(exp instanceof RegExpMatchOperator){106            //TODO107        }108        return cannotHandle(exp);109    }110    private double computeBetween(Between between, DataRow data) {111        Instant start = getAsInstant(getValue(between.getBetweenExpressionStart(), data));112        Instant end = getAsInstant(getValue(between.getBetweenExpressionEnd(), data));113        Instant x = getAsInstant(getValue(between.getLeftExpression(), data));114        double after = computeComparison(x, start, new GreaterThanEquals());115        double before = computeComparison(x, end, new MinorThanEquals());116        return addDistances(after, before);117    }118    private double computeInExpression(InExpression exp, DataRow data) {119        //TODO can left be a list???120        ItemsList itemsList = exp.getRightItemsList();121        if (itemsList instanceof ExpressionList) {122            ExpressionList list = (ExpressionList) itemsList;123            if (exp.isNot()) {124                double max = 0;125                for (Expression element : list.getExpressions()) {126                    ComparisonOperator op = new NotEqualsTo();127                    op.setLeftExpression(exp.getLeftExpression());128                    op.setRightExpression(element);129                    double dist = computeComparisonOperator(op, data);130                    if (dist > max) {131                        max = dist;132                        break; // no need to look at others, as no gradient133                    }134                }135                return max;136            } else {137                double min = Double.MAX_VALUE;138                for (Expression element : list.getExpressions()) {139                    ComparisonOperator op = new EqualsTo();140                    op.setLeftExpression(exp.getLeftExpression());141                    op.setRightExpression(element);142                    double dist = computeComparisonOperator(op, data);143                    if (dist < min) {144                        min = dist;145                    }146                }147                return min;148            }149        } else {150            return cannotHandle(exp);151        }152    }153    private double computeIsNull(IsNullExpression exp, DataRow data) {154        Object x = getValue(exp.getLeftExpression(), data);155        if (x == null && !exp.isNot()) {156            return 0d;157        }158        if (x != null && exp.isNot()) {159            return 0d;160        }161        return 1;162    }163    private double cannotHandle(Expression exp) {164        SimpleLogger.uniqueWarn("WARNING, cannot handle SQL expression type '" + exp.getClass().getSimpleName() +165                "' with value: " + exp.toString());166        return Double.MAX_VALUE;167    }168    private double computeAnd(AndExpression exp, DataRow data) {169        double a = computeExpression(exp.getLeftExpression(), data);170        double b = computeExpression(exp.getRightExpression(), data);171        return addDistances(a, b);172    }173    private double addDistances(double a, double b) {174        double sum = a + b;175        if (sum < Math.max(a, b)) {176            //overflow177            return Double.MAX_VALUE;178        } else {179            return sum;180        }181    }182    private double computeOr(OrExpression exp, DataRow data) {183        double a = computeExpression(exp.getLeftExpression(), data);184        double b = computeExpression(exp.getRightExpression(), data);185        return Math.min(a, b);186    }187    private Instant getAsInstant(Object obj){188        if(obj == null){189            /*190                TODO this shouldn't really happen if we have full SQL support, like sub-selects191             */192            return null;193        }194        if(obj instanceof Timestamp){195            Timestamp timestamp = (Timestamp) obj;196            return timestamp.toInstant();197        }198        if(obj instanceof String){199            try {200                return ZonedDateTime.parse(obj.toString()).toInstant();201            } catch (DateTimeParseException e){202                /*203                    maybe it is in some weird format like 28-Feb-17...204                    this shouldn't really happen, but looks like Hibernate generate SQL from205                    JPQL with Date handled like this :(206                 */207                DateTimeFormatter df = new DateTimeFormatterBuilder()208                        // case insensitive to parse JAN and FEB209                        .parseCaseInsensitive()210                        // add pattern211                        .appendPattern("dd-MMM-yy")212                        // create formatter (use English Locale to parse month names)213                        .toFormatter(Locale.ENGLISH);214                return LocalDate.parse(obj.toString(), df)215                        .atStartOfDay().toInstant(ZoneOffset.UTC);216            }217        }218        SimpleLogger.warn("Cannot handle time value for class: " + obj.getClass());219        return null;220    }221    private double computeComparisonOperator(ComparisonOperator exp, DataRow data) {222        Object left = getValue(exp.getLeftExpression(), data);223        Object right = getValue(exp.getRightExpression(), data);224        if(left instanceof Timestamp || right instanceof Timestamp){225            Instant a = getAsInstant(left);226            Instant b = getAsInstant(right);227            if(a==null || b==null){228                return cannotHandle(exp);229            }230            return computeComparison(a, b, exp);231        }232        if (left instanceof Number && right instanceof Number) {233            double x = ((Number) left).doubleValue();234            double y = ((Number) right).doubleValue();235            return computerComparison(x, y, exp);236        }237        if (left instanceof String && right instanceof String) {238            return computeComparison(left.toString(), right.toString(), exp);239        }240        if (left instanceof Boolean && right instanceof Boolean) {241            return computeBooleanComparison((Boolean) left, (Boolean) right, exp);242        }243        if (left == null || right == null) {244            return computeNullComparison(left, right, exp);245        }246        return cannotHandle(exp);247    }248    private double computeComparison(Instant a, Instant b, ComparisonOperator exp) {249        if(a==null || b==null){250            return Double.MAX_VALUE;251        }252        double dif = - Duration.between(a,b).toMillis();253        return computerComparison(dif, exp);254    }255    private double computeBooleanComparison(boolean x, boolean y, ComparisonOperator exp) {256        if (!checkEqualOrNotOperator(exp)) {257            return cannotHandle(exp);258        }259        if (exp instanceof EqualsTo && x == y) {260            return 0d;261        }262        if (exp instanceof NotEqualsTo && x != y) {263            return 0d;264        }265        return 1d;266    }267    private boolean checkEqualOrNotOperator(ComparisonOperator exp) {268        return (exp instanceof EqualsTo) || (exp instanceof NotEqualsTo);269    }270    private double computeNullComparison(Object x, Object y, ComparisonOperator exp) {271        assert x == null || y == null;272        if (!checkEqualOrNotOperator(exp)) {273            return cannotHandle(exp);274        }275        if (exp instanceof EqualsTo && x == y) {276            return 0d;277        }278        if (exp instanceof NotEqualsTo && x != y) {279            return 0d;280        }281        return Double.MAX_VALUE;282    }283    private double computerComparison(double dif, ComparisonOperator exp) {284        if (exp instanceof EqualsTo) {285            return Math.abs(dif);286        } else if (exp instanceof GreaterThanEquals) {287            return dif >= 0 ? 0d : -dif;288        } else if (exp instanceof GreaterThan) {289            return dif > 0 ? 0d : 1d - dif;290        } else if (exp instanceof MinorThanEquals) {291            return dif <=0  ? 0d : dif;292        } else if (exp instanceof MinorThan) {293            return dif < 0 ? 0d : 1d + dif;294        } else if (exp instanceof NotEqualsTo) {295            return dif != 0 ? 0d : 1d;296        } else {297            return cannotHandle(exp);298        }299    }300    private double computerComparison(double x, double y, ComparisonOperator exp) {301        double dif = x - y;302        return computerComparison(dif, exp);303    }304    private double computeComparison(String a, String b, ComparisonOperator exp) {305        if (exp instanceof EqualsTo) {306            return DistanceHelper.getLeftAlignmentDistance(a, b);307        } else if (exp instanceof NotEqualsTo) {308            if (a.equals(b)) {309                return Double.MAX_VALUE;310            } else {311                return 0d;312            }313        } else {314            return cannotHandle(exp);315        }316    }317    private Object getValue(Expression exp, DataRow data) {318        //TODO all cases319        if (exp instanceof Column) {320            Column column = (Column) exp;321            String name = column.getColumnName();322            String table = context.getTableName(column);323            return data.getValueByName(name, table);324        } else if (exp instanceof Parenthesis) {325            return getValue(((Parenthesis) exp).getExpression(), data);326        } else if (exp instanceof LongValue) {327            return ((LongValue) exp).getValue();328        } else if (exp instanceof StringValue) {329            return ((StringValue) exp).getNotExcapedValue();330        } else if (exp instanceof NullValue) {331            return null;332        } else if (exp instanceof SignedExpression) {333            SignedExpression signed = (SignedExpression) exp;334            Object base = getValue(signed.getExpression(), data);335            if (signed.getSign() != '-') {336                return base;337            } else {338                if (base instanceof Long) {339                    return -(Long) base;340                } else if (base instanceof Double) {341                    return -(Double) base;342                } else if (base instanceof Float) {343                    return -(Float) base;344                } else if (base instanceof Integer) {345                    return -(Integer) base;346                } else {347                    cannotHandle(exp);348                    return null;349                }350            }351        } else {352            cannotHandle(exp);353            return null;354        }355    }356}...

cannotHandle

Using AI Code Generation

1import org.evomaster.client.java.controller.api.dto.database.operations.DatabaseCommandDto2import org.evomaster.client.java.controller.api.dto.database.operations.InsertionDto3import org.evomaster.client.java.controller.api.dto.database.operations.SqlScriptDto4import org.evomaster.client.java.controller.api.dto.database.schema.DatabaseType5import org.evomaster.client.java.controller.api.dto.database.schema.DbSchemaDto6import org.evomaster.client.java.controller.api.dto.database.schema.TableDto7import org.evomaster.client.java.controller.api.dto.database.schema.TableIndexDto8import org.evomaster.client.java.controller.api.dto.database.schema.TableIndexType9import org.evomaster.client.java.controller.internal.db.heuristics.HeuristicsCalculator10import org.evomaster.client.java.controller.internal.db.heuristics.TableRow11import org.evomaster.client.java.controller.internal.db.heuristics.TableRowId12import org.evomaster.client.java.controller.internal.db.schema.SqlScriptRunner13import org.evomaster.client.java.controller.internal.db.schema.SqlScriptRunnerImpl14import org.evomaster.client.java.controller.internal.db.schema.SqlScriptWriter15import org.evomaster.client.java.controller.internal.db.schema.SqlScriptWriterImpl16import org.evomaster.client.java.controller.internal.db.schema.TableSchema17import org.evomaster.client.java.controller.internal.db.schema.TableSchemaImpl18import org.junit.jupiter.api.Assertions19import org.junit.jupiter.api.Test20class HeuristicsCalculatorTest {21    fun testCannotHandle() {22        val heuristicsCalculator = HeuristicsCalculator()23        Assertions.assertTrue(heuristicsCalculator.cannotHandle())24        heuristicsCalculator.tableSchemas = listOf(TableSchemaImpl("table1", listOf("table1_col1")))25        Assertions.assertTrue(heuristicsCalculator.cannotHandle())26        heuristicsCalculator.tableRows = listOf(TableRow(TableRowId("table1", listOf("1")), listOf("1")))27        Assertions.assertFalse(heuristicsCalculator.cannotHandle())28    }29}30    fun testAddTableSchemas() {31        val heuristicsCalculator = HeuristicsCalculator()

cannotHandle

Using AI Code Generation

1def heuristic = new org.evomaster.client.java.controller.internal.db.HeuristicsCalculator()2def heuristicValue = heuristic.calculateHeuristicValue("SELECT * FROM customers WHERE customer_id = 1")3def canHandle = heuristic.cannotHandle(heuristicValue, threshold)4if(canHandle){5} else {6}7if(canHandle){8} else {9}

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.