How to use LookupReplaceEngine method of NBi.Core.ResultSet.Alteration.Lookup.LookupReplaceEngine class

Best NBi code snippet using NBi.Core.ResultSet.Alteration.Lookup.LookupReplaceEngine.LookupReplaceEngine

LookupReplaceEngineTest.cs

Source:LookupReplaceEngineTest.cs

...13using System.Text;14using System.Threading.Tasks;15namespace NBi.Testing.Core.ResultSet.Alteration.Lookup16{17    public class LookupReplaceEngineTest18    {19        [Test]20        public void Execute_AllLookupFound_CorrectReplacement()21        {22            var candidate = new ObjectsResultSetResolver(23                new ObjectsResultSetResolverArgs(24                    new[] {25                        new object[] { 1, "A", 100 },26                        new object[] { 2, "B", 101 },27                        new object[] { 3, "A", 125 },28                        new object[] { 4, "B", 155 }29                    }30                )).Execute();31            var reference = new ResultSetService(32                new ObjectsResultSetResolver(33                    new ObjectsResultSetResolverArgs(34                        new[] {35                            new object[] { "A", "alpha" },36                            new object[] { "B", "beta" },37                        }38                )).Execute, null);39            var engine = new LookupReplaceEngine(40                    new LookupReplaceArgs( 41                        reference, 42                        new ColumnMapping(new ColumnOrdinalIdentifier(1), new ColumnOrdinalIdentifier(0), ColumnType.Text),43                        new ColumnOrdinalIdentifier(1)44                ));45            var result = engine.Execute(candidate);46            Assert.That(result.Columns.Count, Is.EqualTo(3));47            Assert.That(result.Rows.Count, Is.EqualTo(4));48            Assert.That(result.Rows.Cast<DataRow>().Select(x => x[1]).Distinct(), Does.Contain("alpha"));49            Assert.That(result.Rows.Cast<DataRow>().Select(x => x[1]).Distinct(), Does.Contain("beta"));50            Assert.That(result.Rows.Cast<DataRow>().Select(x => x[1] as string).Where(x => x != "alpha" && x != "beta"), Is.Empty); 51        }52        [Test]53        public void Execute_AllLookupFoundSwitchingFromTextToNumeric_CorrectReplacement()54        {55            var candidate = new ObjectsResultSetResolver(56                new ObjectsResultSetResolverArgs(57                    new[] {58                        new object[] { 1, "A", 100 },59                        new object[] { 2, "B", 101 },60                        new object[] { 3, "A", 125 },61                        new object[] { 4, "B", 155 }62                    }63                )).Execute();64            var reference = new ResultSetService(65                new ObjectsResultSetResolver(66                    new ObjectsResultSetResolverArgs(67                        new[] {68                            new object[] { "A", 10.2 },69                            new object[] { "B", 21.1 },70                        }71                )).Execute, null);72            var engine = new LookupReplaceEngine(73                    new LookupReplaceArgs(74                        reference,75                        new ColumnMapping(new ColumnOrdinalIdentifier(1), new ColumnOrdinalIdentifier(0), ColumnType.Text),76                        new ColumnOrdinalIdentifier(1)77                ));78            var result = engine.Execute(candidate);79            Assert.That(result.Columns.Count, Is.EqualTo(3));80            Assert.That(result.Rows.Count, Is.EqualTo(4));81            Assert.That(result.Rows.Cast<DataRow>().Select(x => x[1]).Distinct(), Does.Contain(10.2));82            Assert.That(result.Rows.Cast<DataRow>().Select(x => x[1]).Distinct(), Does.Contain(21.1));83            Assert.That(result.Rows.Cast<DataRow>().Select(x => Convert.ToDecimal(x[1])).Where(x => x != 10.2m && x != 21.1m), Is.Empty);84        }85        [Test]86        public void ExecuteWithFailureStretegy_OneLookupMissing_ExceptionThrown()87        {88            var candidate = new ObjectsResultSetResolver(89                new ObjectsResultSetResolverArgs(90                    new[] {91                        new object[] { 1, "A", 100 },92                        new object[] { 2, "B", 101 },93                        new object[] { 3, "A", 125 },94                        new object[] { 4, "C", 155 }95                    }96                )).Execute();97            var reference = new ResultSetService(98                new ObjectsResultSetResolver(99                    new ObjectsResultSetResolverArgs(100                        new[] {101                            new object[] { "A", "alpha" },102                            new object[] { "B", "beta" },103                        }104                )).Execute, null);105            var engine = new LookupReplaceEngine(106                    new LookupReplaceArgs(107                        reference,108                        new ColumnMapping(new ColumnOrdinalIdentifier(1), new ColumnOrdinalIdentifier(0), ColumnType.Text),109                        new ColumnOrdinalIdentifier(1),110                        new FailureMissingStrategy()111                ));112            var ex = Assert.Throws<NBiException>(() => engine.Execute(candidate));113            Assert.That(ex.Message, Does.Contain("'C'"));114        }115        [Test]116        public void ExecuteWithDefaultValueStrategy_OneLookupMissing_DefaultValueApplied()117        {118            var candidate = new ObjectsResultSetResolver(119                new ObjectsResultSetResolverArgs(120                    new[] {121                        new object[] { 1, "A", 100 },122                        new object[] { 2, "B", 101 },123                        new object[] { 3, "A", 125 },124                        new object[] { 4, "C", 155 }125                    }126                )).Execute();127            var reference = new ResultSetService(128                new ObjectsResultSetResolver(129                    new ObjectsResultSetResolverArgs(130                        new[] {131                            new object[] { "A", "alpha" },132                            new object[] { "B", "beta" },133                        }134                )).Execute, null);135            var engine = new LookupReplaceEngine(136                    new LookupReplaceArgs(137                        reference,138                        new ColumnMapping(new ColumnOrdinalIdentifier(1), new ColumnOrdinalIdentifier(0), ColumnType.Text),139                        new ColumnOrdinalIdentifier(1),140                        new DefaultValueMissingStrategy("omega")141                ));142            var result = engine.Execute(candidate);143            Assert.That(result.Rows.Count, Is.EqualTo(4));144            Assert.That(result.Rows.Cast<DataRow>().Select(x => x[1]).Distinct(), Does.Contain("alpha"));145            Assert.That(result.Rows.Cast<DataRow>().Select(x => x[1]).Distinct(), Does.Contain("beta"));146            var otherValues = result.Rows.Cast<DataRow>().Select(x => x[1] as string).Where(x => x != "alpha" && x != "beta");147            Assert.That(otherValues, Is.Not.Empty);148            Assert.That(otherValues, Does.Contain("omega"));149        }150        [Test]151        public void ExecuteWithOriginalValueStrategy_OneLookupMissing_OriginalValueApplied()152        {153            var candidate = new ObjectsResultSetResolver(154                new ObjectsResultSetResolverArgs(155                    new[] {156                        new object[] { 1, "A", 100 },157                        new object[] { 2, "B", 101 },158                        new object[] { 3, "A", 125 },159                        new object[] { 4, "C", 155 }160                    }161                )).Execute();162            var reference = new ResultSetService(163                new ObjectsResultSetResolver(164                    new ObjectsResultSetResolverArgs(165                        new[] {166                            new object[] { "A", "alpha" },167                            new object[] { "B", "beta" },168                        }169                )).Execute, null);170            var engine = new LookupReplaceEngine(171                    new LookupReplaceArgs(172                        reference,173                        new ColumnMapping(new ColumnOrdinalIdentifier(1), new ColumnOrdinalIdentifier(0), ColumnType.Text),174                        new ColumnOrdinalIdentifier(1),175                        new OriginalValueMissingStrategy()176                ));177            var result = engine.Execute(candidate);178            Assert.That(result.Rows.Count, Is.EqualTo(4));179            Assert.That(result.Rows.Cast<DataRow>().Select(x => x[1]).Distinct(), Does.Contain("alpha"));180            Assert.That(result.Rows.Cast<DataRow>().Select(x => x[1]).Distinct(), Does.Contain("beta"));181            var otherValues = result.Rows.Cast<DataRow>().Select(x => x[1] as string).Where(x => x != "alpha" && x != "beta");182            Assert.That(otherValues, Is.Not.Empty);183            Assert.That(otherValues, Does.Contain("C"));184        }185        [Test]186        public void ExecuteWithDiscardRowStrategy_OneLookupMissing_LessRowsReturned()187        {188            var candidate = new ObjectsResultSetResolver(189                new ObjectsResultSetResolverArgs(190                    new[] {191                        new object[] { 1, "A", 100 },192                        new object[] { 2, "B", 101 },193                        new object[] { 3, "A", 125 },194                        new object[] { 4, "C", 155 }195                    }196                )).Execute();197            var reference = new ResultSetService(198                new ObjectsResultSetResolver(199                    new ObjectsResultSetResolverArgs(200                        new[] {201                            new object[] { "A", "alpha" },202                            new object[] { "B", "beta" },203                        }204                )).Execute, null);205            var engine = new LookupReplaceEngine(206                    new LookupReplaceArgs(207                        reference,208                        new ColumnMapping(new ColumnOrdinalIdentifier(1), new ColumnOrdinalIdentifier(0), ColumnType.Text),209                        new ColumnOrdinalIdentifier(1),210                        new DiscardRowMissingStrategy()211                ));212            var result = engine.Execute(candidate);213            Assert.That(result.Rows.Count, Is.EqualTo(3));214            Assert.That(result.Rows.Cast<DataRow>().Select(x => x[1]).Distinct(), Does.Contain("alpha"));215            Assert.That(result.Rows.Cast<DataRow>().Select(x => x[1]).Distinct(), Does.Contain("beta"));216            var otherValues = result.Rows.Cast<DataRow>().Select(x => x[1] as string).Where(x => x != "alpha" && x != "beta");217            Assert.That(otherValues, Is.Empty);218        }219    }...

LookupReplaceEngine.cs

Source:LookupReplaceEngine.cs

...9using System.Text;10using System.Threading.Tasks;11namespace NBi.Core.ResultSet.Alteration.Lookup12{13    class LookupReplaceEngine : ILookupEngine14    {15        private LookupReplaceArgs Args { get; }16        public LookupReplaceEngine(LookupReplaceArgs args)17            => (Args) = (args);18        public IResultSet Execute(IResultSet candidate)19        {20            var reference = Args.Reference.Execute();21            var stopWatch = new Stopwatch();22            stopWatch.Start();23            var referenceKeyRetriever = BuildColumnsRetriever(Args.Mapping, x => x.ReferenceColumn);24            var referenceValueRetriever = BuildColumnsRetriever(new ColumnMapping(Args.Replacement, ColumnType.Untyped), x => x.ReferenceColumn);25            var index = BuildReferenceIndex(reference.Table, referenceKeyRetriever, referenceValueRetriever);26            Trace.WriteLineIf(Extensibility.NBiTraceSwitch.TraceInfo, $"Built the index for reference table containing {index.Count()} rows [{stopWatch.Elapsed:d'.'hh':'mm':'ss'.'fff'ms'}]");27            stopWatch.Restart();28            var candidateKeyBuilder = BuildColumnsRetriever(Args.Mapping, x => x.CandidateColumn);29            var originalColumn = candidate.Table.GetColumn(Args.Mapping.CandidateColumn);30            var newColumn = candidate.Table.Columns.Add($"tmp_{originalColumn.ColumnName}", typeof(object));...

LookupFactory.cs

Source:LookupFactory.cs

...10        public ILookupEngine Instantiate(ILookupArgs args)11        {12            switch(args)13            {14                case LookupReplaceArgs x: return new LookupReplaceEngine(x);15                default: throw new ArgumentException();16            }17        }18    }19}...

LookupReplaceEngine

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using NBi.Core.ResultSet.Alteration.Lookup;7using NBi.Core.ResultSet;8{9    {10        private readonly IResultSet resultSet;11        private readonly IResultSet lookupResultSet;12        private readonly IEnumerable<IColumnIdentifier> resultSetColumns;13        private readonly IEnumerable<IColumnIdentifier> lookupResultSetColumns;14        public LookupReplaceEngine(IResultSet resultSet, IResultSet lookupResultSet, IEnumerable<IColumnIdentifier> resultSetColumns, IEnumerable<IColumnIdentifier> lookupResultSetColumns)15        {16            this.resultSet = resultSet;17            this.lookupResultSet = lookupResultSet;18            this.resultSetColumns = resultSetColumns;19            this.lookupResultSetColumns = lookupResultSetColumns;20        }21        public void Execute()22        {23            var resultSetIndex = new ResultSetIndex(resultSet, resultSetColumns);24            var lookupResultSetIndex = new ResultSetIndex(lookupResultSet, lookupResultSetColumns);25            var lookupResultSetEnumerator = lookupResultSetIndex.GetEnumerator();26            while (lookupResultSetEnumerator.MoveNext())27            {28                var lookupRow = lookupResultSetEnumerator.Current;29                var lookupKey = lookupResultSetIndex.GetKey(lookupRow);30                var lookupValue = lookupResultSetIndex.GetValue(lookupRow);31                var resultSetEnumerator = resultSetIndex.GetEnumerator(lookupKey);32                while (resultSetEnumerator.MoveNext())33                {34                    var resultSetRow = resultSetEnumerator.Current;35                    var resultSetValue = resultSetIndex.GetValue(resultSetRow);36                    resultSetIndex.SetValue(resultSetRow, lookupValue);37                }38            }39        }40    }41}42using System;43using System.Collections.Generic;44using System.Linq;45using System.Text;46using System.Threading.Tasks;47using NBi.Core.ResultSet.Alteration.Lookup;48using NBi.Core.ResultSet;49{50    {51        private readonly IResultSet resultSet;52        private readonly IResultSet lookupResultSet;53        private readonly IEnumerable<IColumnIdentifier> resultSetColumns;54        private readonly IEnumerable<IColumnIdentifier> lookupResultSetColumns;55        public LookupReplaceEngine(IResultSet resultSet, IResultSet lookupResultSet, IEnumerable<IColumnIdentifier> resultSetColumns, IEnumerable<IColumnIdentifier> lookupResultSetColumns)56        {57            this.resultSet = resultSet;

LookupReplaceEngine

Using AI Code Generation

1using NBi.Core.ResultSet.Alteration.Lookup;2using NBi.Core.ResultSet;3using NBi.Core.Calculation;4using NBi.Core.Calculation.Predicate;5using NBi.Core.Calculation.Predicate.Text;6using System.Collections.Generic;7using System.Data;8using System.Linq;9using System;10using System.Collections;11{12    {13        public static void Main()14        {15            var engine = new LookupReplaceEngine();16            var lookup = new ResultSet();17            var lookupTable = new DataTable();18            lookupTable.Columns.Add("Id", typeof(int));19            lookupTable.Columns.Add("Name", typeof(string));20            lookupTable.Columns.Add("Age", typeof(int));21            lookupTable.Rows.Add(1, "John", 35);22            lookupTable.Rows.Add(2, "Jane", 30);23            lookupTable.Rows.Add(3, "James", 40);24            lookup.Add(lookupTable);25            var lookupColumns = new List<string> { "Id" };26            var lookupColumnsType = new List<Type> { typeof(int) };27            var lookupColumnsCaption = new List<string> { "Id" };28            var lookupColumnsOrdinal = new List<int> { 0 };29            var lookupColumnsDirection = new List<SortDirection> { SortDirection.Ascending };30            var lookupColumnsSort = new List<SortOrder> { SortOrder.Ascending };31            var lookupColumnsCaseSensitive = new List<bool> { true };32            var lookupColumnsCulture = new List<string> { "en-US" };33            var lookupColumnsTrimming = new List<Trimming> { Trimming.None };34            var lookupColumnsNulls = new List<Nulls> { Nulls.Last };35            var lookupColumnsPredicate = new List<IPredicate> { new EqualText() };36            var lookupColumnsPredicateArgs = new List<string> { "1" };37            var lookupColumnsAggregation = new List<AggregationFunction> { AggregationFunction.None };38            var lookupColumnsAggregationArgs = new List<string> { "" };39            var lookupColumnsAggregationCaption = new List<string> { "" };40            var lookupColumnsAggregationOrdinal = new List<int> { -1 };41            var lookupColumnsAggregationDirection = new List<SortDirection> { SortDirection.Ascending };42            var lookupColumnsAggregationSort = new List<SortOrder> { SortOrder.Ascending };

LookupReplaceEngine

Using AI Code Generation

1using NBi.Core.ResultSet.Alteration.Lookup;2using NBi.Core.ResultSet;3using NBi.Core.Calculation;4using NBi.Core.Calculation.Predicate;5using NBi.Core.Variable;6using NBi.Core.Injection;7using System.Collections.Generic;8using System;9using System.Data;10using NBi.Core.ResultSet.Resolver;11using NBi.Core.ResultSet.Lookup;12using NBi.Core.ResultSet.Alteration.Lookup.Scalar;13using NBi.Core.ResultSet.Alteration.Lookup.Violation;14using NBi.Core.ResultSet.Alteration.Lookup.Strategy;15{16{17static void Main(string[] args)18{19DataSet ds = new DataSet();20DataTable dt = new DataTable();21dt.Columns.Add("ID", typeof(int));22dt.Columns.Add("Name", typeof(string));23dt.Rows.Add(1, "A");24dt.Rows.Add(2, "B");25dt.Rows.Add(3, "C");26dt.Rows.Add(4, "D");27dt.Rows.Add(5, "E");28ds.Tables.Add(dt);29DataTable dt1 = new DataTable();30dt1.Columns.Add("ID", typeof(int));31dt1.Columns.Add("Name", typeof(string));32dt1.Rows.Add(1, "A");33dt1.Rows.Add(2, "B");34dt1.Rows.Add(3, "C");35dt1.Rows.Add(4, "D");36dt1.Rows.Add(5, "E");37DataTable dt2 = new DataTable();38dt2.Columns.Add("ID", typeof(int));39dt2.Columns.Add("Name", typeof(string));40dt2.Rows.Add(1, "A");41dt2.Rows.Add(2, "B");42dt2.Rows.Add(3, "C");43dt2.Rows.Add(4, "D");44dt2.Rows.Add(5, "E");45DataTable dt3 = new DataTable();46dt3.Columns.Add("ID", typeof(int));47dt3.Columns.Add("Name", typeof(string));48dt3.Rows.Add(1, "A");49dt3.Rows.Add(2, "B");50dt3.Rows.Add(3, "C");51dt3.Rows.Add(4, "D");52dt3.Rows.Add(5, "E");53DataTable dt4 = new DataTable();54dt4.Columns.Add("ID",

LookupReplaceEngine

Using AI Code Generation

1LookupReplaceEngine lookupReplaceEngine = new LookupReplaceEngine();2lookupReplaceEngine.LookupReplaceEngine(lookupTable, lookupColumn, lookupValue, replaceColumn, replaceValue);3LookupReplaceEngine lookupReplaceEngine = new LookupReplaceEngine();4lookupReplaceEngine.LookupReplaceEngine(lookupTable, lookupColumn, lookupValue, replaceColumn, replaceValue);5LookupReplaceEngine lookupReplaceEngine = new LookupReplaceEngine();6lookupReplaceEngine.LookupReplaceEngine(lookupTable, lookupColumn, lookupValue, replaceColumn, replaceValue);7LookupReplaceEngine lookupReplaceEngine = new LookupReplaceEngine();8lookupReplaceEngine.LookupReplaceEngine(lookupTable, lookupColumn, lookupValue, replaceColumn, replaceValue);9LookupReplaceEngine lookupReplaceEngine = new LookupReplaceEngine();10lookupReplaceEngine.LookupReplaceEngine(lookupTable, lookupColumn, lookupValue, replaceColumn, replaceValue);11LookupReplaceEngine lookupReplaceEngine = new LookupReplaceEngine();12lookupReplaceEngine.LookupReplaceEngine(lookupTable, lookupColumn, lookupValue, replaceColumn, replaceValue);13LookupReplaceEngine lookupReplaceEngine = new LookupReplaceEngine();14lookupReplaceEngine.LookupReplaceEngine(lookupTable, lookupColumn, lookupValue, replaceColumn, replaceValue);15LookupReplaceEngine lookupReplaceEngine = new LookupReplaceEngine();16lookupReplaceEngine.LookupReplaceEngine(lookupTable, lookupColumn, lookupValue, replaceColumn, replaceValue);

LookupReplaceEngine

Using AI Code Generation

1NBi.Core.ResultSet.Alteration.Lookup.LookupReplaceEngine lookupReplaceEngine = new NBi.Core.ResultSet.Alteration.Lookup.LookupReplaceEngine();2NBi.Core.ResultSet.Alteration.Lookup.LookupReplaceEngineArgs lookupReplaceEngineArgs = new NBi.Core.ResultSet.Alteration.Lookup.LookupReplaceEngineArgs();3lookupReplaceEngineArgs.ColumnToReplace = "column1";4lookupReplaceEngineArgs.ColumnToLookup = "column2";5lookupReplaceEngineArgs.ColumnToLookupValue = "column3";6lookupReplaceEngineArgs.LookupTable = new DataTable();7lookupReplaceEngineArgs.LookupTable.Columns.Add("column2");8lookupReplaceEngineArgs.LookupTable.Columns.Add("column3");9lookupReplaceEngineArgs.LookupTable.Rows.Add("value1", "value2");10lookupReplaceEngineArgs.LookupTable.Rows.Add("value3", "value4");11lookupReplaceEngineArgs.LookupMode = NBi.Core.ResultSet.Alteration.Lookup.LookupReplaceEngineArgs.LookupModeType.First;12lookupReplaceEngineArgs.LookupBehavior = NBi.Core.ResultSet.Alteration.Lookup.LookupReplaceEngineArgs.LookupBehaviorType.Throw;13lookupReplaceEngineArgs.LookupMissingValue = "missing";14lookupReplaceEngineArgs.LookupMultipleValue = "multiple";15NBi.Core.ResultSet.ResultSet resultSet = new NBi.Core.ResultSet.ResultSet();16resultSet.Load(lookupReplaceEngineArgs.LookupTable);17lookupReplaceEngine.Execute(resultSet, lookupReplaceEngineArgs);18DataTable result = resultSet.Table;19foreach(DataRow row in result.Rows)20{21    foreach(DataColumn column in result.Columns)22    {23        Console.WriteLine(row[column]);24    }25}

LookupReplaceEngine

Using AI Code Generation

1using System;2using System.Data;3using System.IO;4using System.Linq;5using System.Text;6using System.Threading.Tasks;7using NBi.Core.ResultSet.Alteration.Lookup;8using NBi.Core.ResultSet;9using NBi.Core.Calculation;10using NBi.Core.Calculation.Predicate;11using NBi.Core.Calculation.Ranking;12using NBi.Core.Calculation.Grouping;13using NBi.Core.Calculation.Grouping.ColumnBased;14using NBi.Core.Calculation.Grouping.RowBased;15using NBi.Core.Calculation.Grouping.ColumnBased;16using NBi.Core.Calculation.Grouping.RowBased;17using NBi.Core.ResultSet.Resolver;18using NBi.Core.ResultSet.Resolver.File;19using NBi.Core.ResultSet.Resolver.Csv;20using NBi.Core.ResultSet.Resolver.Csv.Streaming;21using NBi.Core.ResultSet.Resolver.Csv.Streaming.Reader;22using NBi.Core.ResultSet.Resolver.Csv.Streaming.Reader.Strategy;23using NBi.Core.ResultSet.Resolver.Csv.Streaming.Reader.Commands;24using NBi.Core.ResultSet.Resolver.Csv.Streaming.Reader.Commands.Helper;25using NBi.Core.ResultSet.Resolver.Csv.Streaming.Reader.Commands.Helper.Strategy;26using NBi.Core.ResultSet.Resolver.Csv.Streaming.Reader.Commands.Helper.Strategy.Delimiter;27using NBi.Core.ResultSet.Resolver.Csv.Streaming.Reader.Commands.Helper.Strategy.Quote;28using NBi.Core.ResultSet.Resolver.Csv.Streaming.Reader.Commands.Helper.Strategy.Escape;29using NBi.Core.ResultSet.Resolver.Csv.Streaming.Reader.Commands.Helper.Strategy.Comment;30using NBi.Core.ResultSet.Resolver.Csv.Streaming.Reader.Commands.Helper.Strategy.Header;31using NBi.Core.ResultSet.Resolver.Csv.Streaming.Reader.Commands.Helper.Strategy.Record;32using NBi.Core.ResultSet.Resolver.Csv.Streaming.Reader.Commands.Helper.Strategy.RecordSeparator;33using NBi.Core.ResultSet.Resolver.Csv.Streaming.Reader.Commands.Helper.Strategy.Row;34using NBi.Core.ResultSet.Resolver.Csv.Streaming.Reader.Commands.Helper.Strategy.RowSeparator;

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.