How to use Examples class of Gherkin.Ast package

...147            var isIgnored = feature.IsScenarioIgnored(scenarioName);148            //assert.149            Assert.True(isIgnored);150        }151        public static object[][] DataFor_Feature_And_ScenarioOutline_And_Examples_Null_Arguments152        {153            get154            {155                return new object[][]156                {157                    new object[]{ null, "scenario outline name", "examples name" },158                    new object[]{ new Gherkin.Ast.Feature(null, null, null, null, null, null, null), null, "examples name" },159                    new object[]{ new Gherkin.Ast.Feature(null, null, null, null, null, null, null), "scenario outline name", null }160                };161            }162        }163        [Theory]164        [MemberData(nameof(DataFor_Feature_And_ScenarioOutline_And_Examples_Null_Arguments))]165        public void GetExamplesTags_Requires_Arguments(166            Gherkin.Ast.Feature feature,167            string scenarioOutlineName,168            string examplesName169            )170        {171            //act / assert.172            Assert.Throws<ArgumentNullException>(() => feature.GetExamplesTags(173                scenarioOutlineName,174                examplesName));175        }176        [Fact]177        public void GetExamplesTags_Retrieves_Tags_Of_Feature_And_OutLine_And_Examples_Combined()178        {179            //arrange.180            var featureTags = new Gherkin.Ast.Tag[]181            {182                new Gherkin.Ast.Tag(null, "featuretag-1"),183                new Gherkin.Ast.Tag(null, "featuretag-2")184            };185            var outlineTags = new Gherkin.Ast.Tag[]186            {187                new Gherkin.Ast.Tag(null, "outlinetag-1"),188                new Gherkin.Ast.Tag(null, "outlinetag-2"),189                new Gherkin.Ast.Tag(null, "outlinetag-3")190            };191            var examplesTags = new Gherkin.Ast.Tag[]192            {193                new Gherkin.Ast.Tag(null, "examplestag-1"),194                new Gherkin.Ast.Tag(null, "examplestag-2"),195                new Gherkin.Ast.Tag(null, "examplestag-2"),196                new Gherkin.Ast.Tag(null, "examplestag-3")197            };198            var scenarioOutlineName = "scenario name 123";199            var examplesName = "examples name 123";200            var feature = new Gherkin.Ast.Feature(201                featureTags, null, null, null, null, null,202                new Gherkin.Ast.ScenarioDefinition[]203                {204                    new Gherkin.Ast.ScenarioOutline(outlineTags, null, null, scenarioOutlineName, null, null,205                    new Gherkin.Ast.Examples[]206                    {207                        new Gherkin.Ast.Examples(examplesTags, null, null, examplesName, null, null, null)208                    })209                });210            //act.211            var examplesTagNames = feature.GetExamplesTags(scenarioOutlineName, examplesName);212            //assert.213            Assert.NotNull(examplesTagNames);214            var expectedTagNames = featureTags.Union(outlineTags).Union(examplesTags).Select(t => t.Name);215            Assert.Equal(expectedTagNames, examplesTagNames);216        }217        [Theory]218        [MemberData(nameof(DataFor_Feature_And_ScenarioOutline_And_Examples_Null_Arguments))]219        public void IsExamplesIgnored_Requires_Arguments(220            Gherkin.Ast.Feature feature,221            string scenarioOutlineName,222            string examplesName223            )224        {225            //act / assert.226            Assert.Throws<ArgumentNullException>(() => feature.IsExamplesIgnored(scenarioOutlineName, examplesName));227        }228        [Fact]229        public void IsExamplesIgnored_Does_Not_Treat_Ignored_If_No_Ignore_Tag()230        {231            //arrange.232            var featureTags = new Gherkin.Ast.Tag[]233            {234                new Gherkin.Ast.Tag(null, "featuretag-1"),235                new Gherkin.Ast.Tag(null, "featuretag-2")236            };237            var outlineTags = new Gherkin.Ast.Tag[]238            {239                new Gherkin.Ast.Tag(null, "outlinetag-1"),240                new Gherkin.Ast.Tag(null, "outlinetag-2"),241                new Gherkin.Ast.Tag(null, "outlinetag-3")242            };243            var examplesTags = new Gherkin.Ast.Tag[]244            {245                new Gherkin.Ast.Tag(null, "examplestag-1"),246                new Gherkin.Ast.Tag(null, "examplestag-2"),247                new Gherkin.Ast.Tag(null, "examplestag-2"),248                new Gherkin.Ast.Tag(null, "examplestag-3")249            };250            var scenarioOutlineName = "scenario name 123";251            var examplesName = "examples name 123";252            var feature = new Gherkin.Ast.Feature(253                featureTags, null, null, null, null, null,254                new Gherkin.Ast.ScenarioDefinition[]255                {256                    new Gherkin.Ast.ScenarioOutline(outlineTags, null, null, scenarioOutlineName, null, null,257                    new Gherkin.Ast.Examples[]258                    {259                        new Gherkin.Ast.Examples(examplesTags, null, null, examplesName, null, null, null)260                    })261                });262            //act.263            var isIgnored = feature.IsExamplesIgnored(scenarioOutlineName, examplesName);264            //assert.265            Assert.False(isIgnored);266        }267        [Fact]268        public void IsExamplesIgnored_Treats_Ignored_If_Feature_Is_Ignored()269        {270            //arrange.271            var featureTags = new Gherkin.Ast.Tag[]272            {273                new Gherkin.Ast.Tag(null, "featuretag-1"),274                new Gherkin.Ast.Tag(null, GherkinFeatureExtensions.IgnoreTag)275            };276            var outlineTags = new Gherkin.Ast.Tag[]277            {278                new Gherkin.Ast.Tag(null, "outlinetag-1"),279                new Gherkin.Ast.Tag(null, "outlinetag-2"),280                new Gherkin.Ast.Tag(null, "outlinetag-3")281            };282            var examplesTags = new Gherkin.Ast.Tag[]283            {284                new Gherkin.Ast.Tag(null, "examplestag-1"),285                new Gherkin.Ast.Tag(null, "examplestag-2"),286                new Gherkin.Ast.Tag(null, "examplestag-2"),287                new Gherkin.Ast.Tag(null, "examplestag-3")288            };289            var scenarioOutlineName = "scenario name 123";290            var examplesName = "examples name 123";291            var feature = new Gherkin.Ast.Feature(292                featureTags, null, null, null, null, null,293                new Gherkin.Ast.ScenarioDefinition[]294                {295                    new Gherkin.Ast.ScenarioOutline(outlineTags, null, null, scenarioOutlineName, null, null,296                    new Gherkin.Ast.Examples[]297                    {298                        new Gherkin.Ast.Examples(examplesTags, null, null, examplesName, null, null, null)299                    })300                });301            //act.302            var isIgnored = feature.IsExamplesIgnored(scenarioOutlineName, examplesName);303            //assert.304            Assert.True(isIgnored);305        }306        [Fact]307        public void IsExamplesIgnored_Treats_Ignored_If_ScenarioOutline_Is_Ignored()308        {309            //arrange.310            var featureTags = new Gherkin.Ast.Tag[]311            {312                new Gherkin.Ast.Tag(null, "featuretag-1"),313                new Gherkin.Ast.Tag(null, "featuretag-1")314            };315            var outlineTags = new Gherkin.Ast.Tag[]316            {317                new Gherkin.Ast.Tag(null, "outlinetag-1"),318                new Gherkin.Ast.Tag(null, GherkinFeatureExtensions.IgnoreTag),319                new Gherkin.Ast.Tag(null, "outlinetag-3")320            };321            var examplesTags = new Gherkin.Ast.Tag[]322            {323                new Gherkin.Ast.Tag(null, "examplestag-1"),324                new Gherkin.Ast.Tag(null, "examplestag-2"),325                new Gherkin.Ast.Tag(null, "examplestag-2"),326                new Gherkin.Ast.Tag(null, "examplestag-3")327            };328            var scenarioOutlineName = "scenario name 123";329            var examplesName = "examples name 123";330            var feature = new Gherkin.Ast.Feature(331                featureTags, null, null, null, null, null,332                new Gherkin.Ast.ScenarioDefinition[]333                {334                    new Gherkin.Ast.ScenarioOutline(outlineTags, null, null, scenarioOutlineName, null, null,335                    new Gherkin.Ast.Examples[]336                    {337                        new Gherkin.Ast.Examples(examplesTags, null, null, examplesName, null, null, null)338                    })339                });340            //act.341            var isIgnored = feature.IsExamplesIgnored(scenarioOutlineName, examplesName);342            //assert.343            Assert.True(isIgnored);344        }345        [Fact]346        public void IsExamplesIgnored_Treats_Ignored_If_Examples_Is_Ignored()347        {348            //arrange.349            var featureTags = new Gherkin.Ast.Tag[]350            {351                new Gherkin.Ast.Tag(null, "featuretag-1"),352                new Gherkin.Ast.Tag(null, "featuretag-2")353            };354            var outlineTags = new Gherkin.Ast.Tag[]355            {356                new Gherkin.Ast.Tag(null, "outlinetag-1"),357                new Gherkin.Ast.Tag(null, "outlinetag-2"),358                new Gherkin.Ast.Tag(null, "outlinetag-3")359            };360            var examplesTags = new Gherkin.Ast.Tag[]361            {362                new Gherkin.Ast.Tag(null, "examplestag-1"),363                new Gherkin.Ast.Tag(null, "examplestag-2"),364                new Gherkin.Ast.Tag(null, GherkinFeatureExtensions.IgnoreTag),365                new Gherkin.Ast.Tag(null, "examplestag-3")366            };367            var scenarioOutlineName = "scenario name 123";368            var examplesName = "examples name 123";369            var feature = new Gherkin.Ast.Feature(370                featureTags, null, null, null, null, null,371                new Gherkin.Ast.ScenarioDefinition[]372                {373                    new Gherkin.Ast.ScenarioOutline(outlineTags, null, null, scenarioOutlineName, null, null,374                    new Gherkin.Ast.Examples[]375                    {376                        new Gherkin.Ast.Examples(examplesTags, null, null, examplesName, null, null, null)377                    })378                });379            //act.380            var isIgnored = feature.IsExamplesIgnored(scenarioOutlineName, examplesName);381            //assert.382            Assert.True(isIgnored);383        }384    }385}...

...93                Title = scenario.Name,94                Description = scenario.Description,95                Tags = scenario.Tags.ConvertToStrings(),96                Steps = scenario.Steps.ConvertToSteps(dialect),97                ExampleSets = scenario.Examples.ConvertToExampleSets(),98                Location = scenario.Location.ConvertToSourceLocation()99            };100        }101        /// <summary>102        /// Converts the provided <see cref=" Gherkin.Ast.Background"/> instance into a <see cref="Augurk.Entities.Background"/> instance.103        /// </summary>104        /// <param name="background">The <see cref=" Gherkin.Ast.Background"/> instance that should be converted.</param>105        /// <param name="dialect">The <see cref="GherkinDialect"/> that is being used for this feature.</param>106        /// <returns>The converted <see cref="Augurk.Entities.Background"/> instance.</returns>107        public static Background ConvertToBackground(this Gherkin.Ast.Background background, GherkinDialect dialect)108        {109            if (background == null)110            {111                return null;112            }113            return new Background()114            {115                Title = background.Name,116                Keyword = background.Keyword,117                Steps = background.Steps.ConvertToSteps(dialect),118                Location = background.Location.ConvertToSourceLocation()119            };120        }121        /// <summary>122        /// Converts the provided <see cref="Gherkin.Ast.Examples"/> instances into an enumerable collection of <see cref="Augurk.Entities.ExampleSet"/> instances.123        /// </summary>124        /// <param name="examples">The <see cref="Gherkin.Ast.Examples"/> instances that should be converted.</param>125        /// <returns>An enumerable collection of <see cref="Augurk.Entities.ExampleSet"/> instances.</returns>126        public static IEnumerable<ExampleSet> ConvertToExampleSets(this IEnumerable<Gherkin.Ast.Examples> examples)127        {128            if (examples == null)129            {130                throw new ArgumentNullException("examples");131            }132            return examples.Select(exampleSet => exampleSet.ConvertToExampleSet()).ToArray();133        }134        /// <summary>135        /// Converts the provided <see cref="Gherkin.Ast.Examples"/> instance into a<see cref="Augurk.Entities.ExampleSet"/> instance.136        /// </summary>137        /// <param name="examples">The <see cref="Gherkin.Ast.Examples"/> instance that should be converted.</param>138        /// <returns>The converted <see cref="Augurk.Entities.ExampleSet"/> instance.</returns>139        public static ExampleSet ConvertToExampleSet(this Gherkin.Ast.Examples examples)140        {141            if (examples == null)142            {143                throw new ArgumentNullException("exampleSet");144            }145            return new ExampleSet()146            {147                Title = examples.Name,148                Description = examples.Description,149                Keyword = examples.Keyword,150                Tags = examples.Tags.ConvertToStrings(),151                Columns = examples.TableHeader.Cells.Select(cell => cell.Value).ToArray(),152                Rows = examples.TableBody.Select(row => row.Cells.Select(cell => cell.Value).ToArray()).ToArray(),153                Location = examples.Location.ConvertToSourceLocation()...

...119            errors.AddRange(((DeveroomGherkinAstBuilder)_astBuilder).Errors);120            if (specFlowDocument?.Feature != null)121            {122                CheckForDuplicateScenarios(specFlowDocument.Feature, errors);123                CheckForDuplicateExamples(specFlowDocument.Feature, errors);124                CheckForMissingExamples(specFlowDocument.Feature, errors);125                CheckForRulesPreSpecFlow31(specFlowDocument.Feature, errors);126            }127            // collect128            if (errors.Count == 1)129                throw errors[0];130            if (errors.Count > 1)131                throw new CompositeParserException(errors.ToArray());132        }133        private void CheckForRulesPreSpecFlow31(Feature feature, List<ParserException> errors)134        {135            //TODO: Show error when Rule keyword is used in SpecFlow v3.0 or earlier136        }137        private void CheckForDuplicateScenarios(Feature feature, List<ParserException> errors)138        {139            // duplicate scenario name140            var duplicatedScenarios = feature.FlattenScenarioDefinitions().GroupBy(sd => sd.Name, sd => sd).Where(g => g.Count() > 1).ToArray();141            errors.AddRange(142                duplicatedScenarios.Select(g =>143                    new SemanticParserException(144                        $"Feature file already contains a scenario with name '{g.Key}'",145                        g.ElementAt(1).Location)));146        }147        private void CheckForDuplicateExamples(Feature feature, List<ParserException> errors)148        {149            foreach (var scenarioOutline in feature.FlattenScenarioDefinitions().OfType<ScenarioOutline>())150            {151                var duplicateExamples = scenarioOutline.Examples152                                                       .Where(e => !String.IsNullOrWhiteSpace(e.Name))153                                                       .Where(e => e.Tags.All(t => t.Name != "ignore"))154                                                       .GroupBy(e => e.Name, e => e).Where(g => g.Count() > 1);155                foreach (var duplicateExample in duplicateExamples)156                {157                    var message = $"Scenario Outline '{scenarioOutline.Name}' already contains an example with name '{duplicateExample.Key}'";158                    var semanticParserException = new SemanticParserException(message, duplicateExample.ElementAt(1).Location);159                    errors.Add(semanticParserException);160                }161            }162        }163        private void CheckForMissingExamples(Feature feature, List<ParserException> errors)164        {165            foreach (var scenarioOutline in feature.FlattenScenarioDefinitions().OfType<ScenarioOutline>())166            {167                if (DoesntHavePopulatedExamples(scenarioOutline))168                {169                    var message = $"Scenario Outline '{scenarioOutline.Name}' has no examples defined";170                    var semanticParserException = new SemanticParserException(message, scenarioOutline.Location);171                    errors.Add(semanticParserException);172                }173            }174        }175        private static bool DoesntHavePopulatedExamples(ScenarioOutline scenarioOutline)176        {177            return !scenarioOutline.Examples.Any() || scenarioOutline.Examples.Any(x => x.TableBody == null || !x.TableBody.Any());178        }179        #endregion180        #region Expected tokens181        class NullAstBuilder : IAstBuilder<DeveroomGherkinDocument>182        {183            public void Build(Token token)184            {185            }186            public void StartRule(RuleType ruleType)187            {188            }189            public void EndRule(RuleType ruleType)190            {191            }192            public DeveroomGherkinDocument GetResult()193            {194                return null;195            }196            public void Reset()197            {198            }199        }200        class AllFalseTokenMatcher : ITokenMatcher201        {202            public bool Match_EOF(Token token)203            {204                return false;205            }206            public bool Match_Empty(Token token)207            {208                return false;209            }210            public bool Match_Comment(Token token)211            {212                return false;213            }214            public bool Match_TagLine(Token token)215            {216                return false;217            }218            public bool Match_FeatureLine(Token token)219            {220                return false;221            }222            public bool Match_RuleLine(Token token)223            {224                return false;225            }226            public bool Match_BackgroundLine(Token token)227            {228                return false;229            }230            public bool Match_ScenarioLine(Token token)231            {232                return false;233            }234            public bool Match_ExamplesLine(Token token)235            {236                return false;237            }238            public bool Match_StepLine(Token token)239            {240                return false;241            }242            public bool Match_DocStringSeparator(Token token)243            {244                return false;245            }246            public bool Match_TableRow(Token token)247            {248                return false;...

...21                null,22                "outline123",23                null,24                new Gherkin.Ast.Step[] { },25                new Gherkin.Ast.Examples[] 26                {27                    new Gherkin.Ast.Examples(28                        null,29                        null,30                        null,31                        "existing example",32                        null,33                        new Gherkin.Ast.TableRow(null, new Gherkin.Ast.TableCell[]{ }),34                        new Gherkin.Ast.TableRow[]35                        {36                            new Gherkin.Ast.TableRow(null, new Gherkin.Ast.TableCell[]{ })37                        })38                });39            //act / assert.40            Assert.Throws<InvalidOperationException>(() => sut.ApplyExampleRow(exampleName, exampleRowIndex));41        }42        [Fact]43        public void ApplyExampleRow_Digests_Row_Values_Into_Scenario()44        {45            //arrange.46            var sut = new Gherkin.Ast.ScenarioOutline(47                null,48                null,49                null,50                "outline123",51                null,52                new Gherkin.Ast.Step[] 53                {54                    new Gherkin.Ast.Step(null, "Given", "I chose <a> as first number", null),55                    new Gherkin.Ast.Step(null, "And", "I chose <b> as second number", null),56                    new Gherkin.Ast.Step(null, "When", "I press add", null),57                    new Gherkin.Ast.Step(null, "Then", "the result should be <sum> on the screen", null),58                },59                new Gherkin.Ast.Examples[]60                {61                    new Gherkin.Ast.Examples(62                        null,63                        null,64                        null,65                        "existing example",66                        null,67                        new Gherkin.Ast.TableRow(null, new Gherkin.Ast.TableCell[]68                        {69                            new Gherkin.Ast.TableCell(null, "a"),70                            new Gherkin.Ast.TableCell(null, "b"),71                            new Gherkin.Ast.TableCell(null, "sum")72                        }),73                        new Gherkin.Ast.TableRow[]74                        {75                            new Gherkin.Ast.TableRow(null, new Gherkin.Ast.TableCell[]76                            {77                                new Gherkin.Ast.TableCell(null, "1"),78                                new Gherkin.Ast.TableCell(null, "2"),79                                new Gherkin.Ast.TableCell(null, "3")80                            })81                        })82                });83            //act.84            var scenario = sut.ApplyExampleRow("existing example", 0);85            //assert.86            Assert.NotNull(scenario);87            Assert.Equal(sut.Name, scenario.Name);88            Assert.Equal(sut.Steps.Count(), scenario.Steps.Count());89            Assert.Equal(4, scenario.Steps.Count());90            var sutSteps = sut.Steps.ToList();91            var scenarioSteps = scenario.Steps.ToList();92            ValidateStep(scenarioSteps[0], "Given", "I chose 1 as first number", sutSteps[0]);93            ValidateStep(scenarioSteps[1], "And", "I chose 2 as second number", sutSteps[1]);94            ValidateStep(scenarioSteps[2], "When", "I press add", sutSteps[2]);95            ValidateStep(scenarioSteps[3], "Then", "the result should be 3 on the screen", sutSteps[3]);96            void ValidateStep(Gherkin.Ast.Step step, string keyword, string text,97                Gherkin.Ast.Step other)98            {99                Assert.NotSame(other, step);100                Assert.Equal(keyword, step.Keyword);101                Assert.Equal(text, step.Text);102            }103        }104        [Fact]105        public void ApplyExampleRow_Digests_Row_Values_Into_Scenario_With_Multiple_Placeholders_Per_Step()106        {107            //arrange.108            var sut = new Gherkin.Ast.ScenarioOutline(109                null,110                null,111                null,112                "outline123",113                null,114                new Gherkin.Ast.Step[]115                {116                    new Gherkin.Ast.Step(null, "Given", "I chose <a> as first number and <b> as second number", null),117                    new Gherkin.Ast.Step(null, "When", "I press add", null),118                    new Gherkin.Ast.Step(null, "Then", "the result should be <sum> on the screen", null),119                },120                new Gherkin.Ast.Examples[]121                {122                    new Gherkin.Ast.Examples(123                        null,124                        null,125                        null,126                        "existing example",127                        null,128                        new Gherkin.Ast.TableRow(null, new Gherkin.Ast.TableCell[]129                        {130                            new Gherkin.Ast.TableCell(null, "a"),131                            new Gherkin.Ast.TableCell(null, "b"),132                            new Gherkin.Ast.TableCell(null, "sum")133                        }),134                        new Gherkin.Ast.TableRow[]135                        {136                            new Gherkin.Ast.TableRow(null, new Gherkin.Ast.TableCell[]...

...4using Gherkin.Ast;5using TechTalk.SpecFlow.Parser.SyntaxElements;6using Background = TechTalk.SpecFlow.Parser.SyntaxElements.Background;7using Comment = TechTalk.SpecFlow.Parser.SyntaxElements.Comment;8using Examples = TechTalk.SpecFlow.Parser.SyntaxElements.Examples;9using Feature = TechTalk.SpecFlow.Parser.SyntaxElements.Feature;10using Scenario = TechTalk.SpecFlow.Parser.SyntaxElements.Scenario;11using ScenarioOutline = TechTalk.SpecFlow.Parser.SyntaxElements.ScenarioOutline;12using Tag = TechTalk.SpecFlow.Parser.SyntaxElements.Tag;13namespace TechTalk.SpecFlow.Parser.Compatibility14{15    public class CompatibleAstConverter16    {17        public static Feature ConvertToCompatibleFeature(SpecFlowDocument specFlowDocument)18        {19            var specFlowFeature = specFlowDocument.SpecFlowFeature;20            return new Feature(specFlowFeature.Keyword, specFlowFeature.Name, 21                ConvertToCompatibleTags(specFlowFeature.Tags),22                specFlowFeature.Description, 23                ConvertToCompatibleBackground(specFlowFeature.Background), 24                ConvertToCompatibleScenarios(specFlowFeature.ScenarioDefinitions), 25                ConvertToCompatibleComments(specFlowDocument.Comments))26            {27                FilePosition = ConvertToCompatibleFilePosition(specFlowFeature.Location),28                Language = specFlowFeature.Language,29                SourceFile = specFlowDocument.SourceFilePath30            };31        }32        private static Comment[] ConvertToCompatibleComments(IEnumerable<global::Gherkin.Ast.Comment> comments)33        {34            return comments.Select(ConvertToCompatibleComment).Where(c => c != null).ToArray();35        }36        private static Comment ConvertToCompatibleComment(global::Gherkin.Ast.Comment c)37        {38            var trimmedText = c.Text.TrimStart('#', ' ', '\t');39            if (trimmedText.Length == 0)40                return null;41            return new Comment(trimmedText, ConvertToCompatibleFilePosition(c.Location, c.Text.Length - trimmedText.Length));42        }43        private static Scenario[] ConvertToCompatibleScenarios(IEnumerable<Gherkin.Ast.ScenarioDefinition> scenarioDefinitions)44        {45            return scenarioDefinitions.Select(ConvertToCompatibleScenario).ToArray();46        }47        private static Scenario ConvertToCompatibleScenario(Gherkin.Ast.ScenarioDefinition sd)48        {49            var convertToCompatibleTags = ConvertToCompatibleTags(sd.GetTags());50            var result = sd is global::Gherkin.Ast.ScenarioOutline51                ? new ScenarioOutline(sd.Keyword, sd.Name, sd.Description, convertToCompatibleTags, ConvertToCompatibleSteps(sd.Steps), ConvertToCompatibleExamples(((global::Gherkin.Ast.ScenarioOutline)sd).Examples))52                : new Scenario(sd.Keyword, sd.Name, sd.Description, convertToCompatibleTags, ConvertToCompatibleSteps(sd.Steps));53            result.FilePosition = ConvertToCompatibleFilePosition(sd.Location);54            return result;55        }56        private static Examples ConvertToCompatibleExamples(IEnumerable<global::Gherkin.Ast.Examples> examples)57        {58            return new Examples(examples.Select(e => new ExampleSet(e.Keyword, e.Name, e.Description, ConvertToCompatibleTags(e.Tags), ConvertToCompatibleExamplesTable(e))).ToArray());59        }60        private static GherkinTable ConvertToCompatibleExamplesTable(global::Gherkin.Ast.Examples examples)61        {62            return new GherkinTable(ConvertToCompatibleRow(examples.TableHeader), examples.TableBody.Select(ConvertToCompatibleRow).ToArray());63        }64        private static GherkinTableRow ConvertToCompatibleRow(global::Gherkin.Ast.TableRow tableRow)65        {66            return new GherkinTableRow(tableRow.Cells.Select(c => new GherkinTableCell(c.Value)).ToArray())67            {68                FilePosition = ConvertToCompatibleFilePosition(tableRow.Location)69            };70        }71        private static ScenarioSteps ConvertToCompatibleSteps(IEnumerable<global::Gherkin.Ast.Step> steps)72        {73            return new ScenarioSteps(steps.Select(s => ConvertToCompatibleStep((SpecFlowStep)s)).ToArray());74        }...

...3using System.Linq;4using Gherkin.Ast;5using Gherkin.Events.Args.Ast;6using Comment = Gherkin.Events.Args.Ast.Comment;7using Examples = Gherkin.Events.Args.Ast.Examples;8using Feature = Gherkin.Events.Args.Ast.Feature;9using Location = Gherkin.Events.Args.Ast.Location;10using Rule = Gherkin.Events.Args.Ast.Rule;11using Step = Gherkin.Events.Args.Ast.Step;12using StepsContainer = Gherkin.Events.Args.Ast.StepsContainer;13namespace Gherkin.Stream.Converter14{15    public class AstEventConverter16    {17        public GherkinDocumentEventArgs ConvertGherkinDocumentToEventArgs(GherkinDocument gherkinDocument, string sourceEventUri)18        {19            return new GherkinDocumentEventArgs()20            {21                Uri = sourceEventUri,22                Feature = ConvertFeature(gherkinDocument),23                Comments = ConvertComments(gherkinDocument)24            };25        }26        private IReadOnlyCollection<Comment> ConvertComments(GherkinDocument gherkinDocument)27        {28            return gherkinDocument.Comments.Select(c =>29                new Comment()30                {31                    Text = c.Text,32                    Location = ConvertLocation(c.Location)33                }).ToReadOnlyCollection();34        }35        private Feature ConvertFeature(GherkinDocument gherkinDocument)36        {37            var feature = gherkinDocument.Feature;38            if (feature == null)39            {40                return null;41            }42            return new Feature()43            {44                Name = feature.Name == string.Empty ? null : feature.Name,45                Keyword = feature.Keyword,46                Language = feature.Language,47                Location = ConvertLocation(feature.Location),48                Children = feature.Children.Select(ConvertToChildren).ToReadOnlyCollection()49            };50        }51        private static Location ConvertLocation(Ast.Location location)52        {53            return new Location(location.Column, location.Line);54        }55        private Children ConvertToChildren(IHasLocation hasLocation)56        {57            switch (hasLocation)58            {59                case Background background:60                    return new Children()61                    {62                        Background = new StepsContainer()63                        {64                            Location = ConvertLocation(background.Location),65                            Name = background.Name == string.Empty ? null : background.Name,66                            Keyword = background.Keyword,67                            Steps = background.Steps.Select(s => ConvertStep(s)).ToList()68                        }69                    };70                case Scenario scenario:71                    return new Children()72                    {73                        Scenario = new StepsContainer()74                        {75                            Keyword = scenario.Keyword,76                            Location = ConvertLocation(scenario.Location),77                            Name = scenario.Name == string.Empty ? null : scenario.Name,78                            Steps = scenario.Steps.Select(s => ConvertStep(s)).ToList(),79                            Examples = scenario.Examples.Select(ConvertExamples).ToReadOnlyCollection(),80                        }81                    };82                case Ast.Rule rule:83                    {84                        return new Children()85                        {86                            Rule = new Rule()87                            {88                                Name = rule.Name == string.Empty ? null : rule.Name,89                                Keyword = rule.Keyword,90                                Children = rule.Children.Select(ConvertToChildren).ToReadOnlyCollection(),91                                Location = ConvertLocation(rule.Location)92                            }93                        };94                    }95                default:96                    throw new NotImplementedException();97            }98        }99        private Examples ConvertExamples(Ast.Examples examples)100        {101            return new Examples()102            {103                Name = examples.Name == string.Empty ? null : examples.Name,104                Keyword = examples.Keyword,105                Description = examples.Description,106                Location = ConvertLocation(examples.Location),107                TableHeader = ConvertTableHeader(examples),108                TableBody = ConvertToTableBody(examples)109            };110        }111        private IReadOnlyCollection<TableBody> ConvertToTableBody(Ast.Examples examples)112        {113            if (examples.TableBody == null)114                return new List<TableBody>();115            return examples.TableBody.Select(b =>116                new TableBody()117                {118                    Location = ConvertLocation(b.Location),119                    Cells = b.Cells.Select(ConvertCell).ToReadOnlyCollection()120                }).ToReadOnlyCollection();121        }122        private TableHeader ConvertTableHeader(Ast.Examples examples)123        {124            if (examples.TableHeader == null)125                return null;126            return new TableHeader()127            {128                Location = ConvertLocation(examples.TableHeader.Location),129                Cells = examples.TableHeader.Cells.Select(ConvertCell).ToReadOnlyCollection()130            };131        }132        private Cell ConvertCell(TableCell c)133        {134            return new Cell()135            {136                Value = c.Value,...

...11            this global::Gherkin.Ast.ScenarioOutline @this,12            string exampleName,13            int exampleRowIndex)14        {15            var examples = @this.Examples.FirstOrDefault(e => e.Name == exampleName);16            if (examples == null)17                throw new InvalidOperationException($"Cannot find examples named `{exampleName}` in scenario outline `{@this.Name}`.");18            var exampleRow = GetExampleRow(@this, exampleRowIndex, examples);19            var rowValues = GetExampleRowValues(examples, exampleRow);20            var scenarioSteps = new List<global::Gherkin.Ast.Step>();21            foreach (var outlineStep in @this.Steps)22            {23                var scenarioStep = DigestExampleValuesIntoStep(24                    @this, 25                    exampleName, 26                    exampleRowIndex, 27                    rowValues, 28                    outlineStep);29                scenarioSteps.Add(scenarioStep);30            }31            return new global::Gherkin.Ast.Scenario(32                @this.Tags?.ToArray(),33                @this.Location,34                @this.Keyword,35                @this.Name,36                @this.Description,37                scenarioSteps.ToArray());38        }39        private static global::Gherkin.Ast.Step DigestExampleValuesIntoStep(global::Gherkin.Ast.ScenarioOutline @this, string exampleName, int exampleRowIndex, Dictionary<string, string> rowValues, global::Gherkin.Ast.Step outlineStep)40        {41            var stepText = _placeholderRegex.Replace(outlineStep.Text,42                                match =>43                                {44                                    var placeholderKey = match.Groups[1].Value;45                                    if (!rowValues.ContainsKey(placeholderKey))46                                        throw new InvalidOperationException($"Examples table did not provide value for `{placeholderKey}`. Scenario outline: `{@this.Name}`. Examples: `{exampleName}`. Row index: {exampleRowIndex}.");47                                    var placeholderValue = rowValues[placeholderKey];48                                    return placeholderValue;49                                });50            var scenarioStep = new global::Gherkin.Ast.Step(51                outlineStep.Location,52                outlineStep.Keyword,53                stepText,54                outlineStep.Argument);55            return scenarioStep;56        }57        private static Dictionary<string, string> GetExampleRowValues(global::Gherkin.Ast.Examples examples, List<global::Gherkin.Ast.TableCell> exampleRowCells)58        {59            var rowValues = new Dictionary<string, string>();60            var headerCells = examples.TableHeader.Cells.ToList();61            for (int index = 0; index < headerCells.Count; index++)62            {63                rowValues.Add(headerCells[index].Value, exampleRowCells[index].Value);64            }65            return rowValues;66        }67        private static List<global::Gherkin.Ast.TableCell> GetExampleRow(global::Gherkin.Ast.ScenarioOutline @this, int exampleRowIndex, global::Gherkin.Ast.Examples examples)68        {69            var exampleRows = examples.TableBody.ToList();70            if (!(exampleRowIndex < exampleRows.Count))71                throw new InvalidOperationException($"Index out of range. Cannot retrieve example row at index `{exampleRowIndex}`. Example: `{examples.Name}`. Scenario outline: `{@this.Name}`.");72            var exampleRow = exampleRows[exampleRowIndex];73            var exampleRowCells = exampleRow.Cells.ToList();74            return exampleRowCells;75        }76    }77}...

...32        {33            var scenarioTags = feature.GetScenarioTags(scenarioName);34            return scenarioTags.Contains(IgnoreTag);35        }36        public static List<string> GetExamplesTags(37            this global::Gherkin.Ast.Feature feature,38            string scenarioOutlineName,39            string examplesName)40        {41            if (feature == null)42                throw new ArgumentNullException(nameof(feature));43            if (string.IsNullOrWhiteSpace(scenarioOutlineName))44                throw new ArgumentNullException(nameof(scenarioOutlineName));45            46            var scenarioOutline = feature.Children.OfType<global::Gherkin.Ast.ScenarioOutline>()47                .FirstOrDefault(o => o.Name == scenarioOutlineName);48            if (scenarioOutline == null)49                throw new InvalidOperationException($"Cannot find scenario outline `{scenarioOutlineName}` under feature `{feature.Name}`.");50            var examples = scenarioOutline.Examples.FirstOrDefault(e => e.Name == examplesName);51            if (examples == null)52                throw new InvalidOperationException($"Cannot find examples `{examplesName}` under scenario outline `{scenarioOutlineName}` and feature `{feature.Name}`.");53            var examplesTags = feature.Tags54                ?.Union(scenarioOutline.Tags ?? new List<global::Gherkin.Ast.Tag>())55                ?.Union(examples.Tags ?? new List<global::Gherkin.Ast.Tag>())56                ?.Select(t => t.Name)57                ?.ToList();58            return examplesTags ?? new List<string>();59        }60        public static bool IsExamplesIgnored(61            this global::Gherkin.Ast.Feature feature,62            string scenarioOutlineName,63            string examplesName)64        {65            var examplesTags = feature.GetExamplesTags(scenarioOutlineName, examplesName);66            return examplesTags.Contains(IgnoreTag);67        }68    }69}...

1using Gherkin.Ast;2using System;3using System.Collections.Generic;4using System.Linq;5using System.Text;6using System.Threading.Tasks;7{8    {9        static void Main(string[] args)10        {11            Examples obj = new Examples();12            obj.ExampleMethod();13        }14    }15}16using Gherkin.Ast;17using System;18using System.Collections.Generic;19using System.Linq;20using System.Text;21using System.Threading.Tasks;22{23    {24        public void ExampleMethod()25        {26            Examples obj = new Examples();27            obj.ExampleMethod();28        }29    }30}31Error 1 The type or namespace name 'Examples' does not exist in the namespace 'Gherkin.Ast' (are you missing an assembly reference?) C:\Users\Gaurav\Desktop\Gherkin\Gherkin\Program.cs 11 7 Gherkin32using System;33{34    {35        static void Main(string[] args)36        {37            MyClass myClass = new MyClass();38            myClass.MyMethod();39        }40    }41    {42        public void MyMethod()43        {44            Console.WriteLine("Hello World!");45        }46    }47}48I have a class that has a method that is called when a button is clicked. The method is called on a different thread than the UI thread. I would like to be able to update the UI when the method is done. I have tried to use the Dispatcher.Invoke() method but I get an error saying that the thread does not have access to the dispatcher. I have also tried using the Dispatcher.BeginInvoke() method with no luck. How can I update the UI from

1using Gherkin.Ast;2using System;3using System.Collections.Generic;4using System.Linq;5using System.Text;6using System.Threading.Tasks;7{8    {9        static void Main(string[] args)10        {11            Examples examples = new Examples(new List<Tag>(), "Examples", "", new List<TableRow>(), new List<TableRow>());12            Console.WriteLine("Keyword: " + examples.Keyword);13            Console.WriteLine("Name: " + examples.Name);14            Console.WriteLine("Description: " + examples.Description);15            Console.WriteLine("Header: " + examples.Header);16            Console.WriteLine("Rows: " + examples.Rows);17            Console.ReadKey();18        }19    }20}

1using Gherkin.Ast;2using System;3{4    {5        static void Main(string[] args)6        {7            Console.WriteLine("Hello World!");8            Examples examples = new Examples();9            Console.WriteLine(examples.GetType().Name);10            Console.ReadLine();11        }12    }13}14using Gherkin.Ast;15using System;16{17    {18        static void Main(string[] args)19        {20            Console.WriteLine("Hello World!");21            Examples examples = new Examples();22            Console.WriteLine(examples.GetType().Name);23            Console.WriteLine(examples.GetTableHeader());24            Console.WriteLine(examples.GetTableBody());25            Console.ReadLine();26        }

1using Gherkin.Ast;2using System;3{4    {5        static void Main(string[] args)6        {7            Examples ex = new Examples();8            List<TableRow> rows = new List<TableRow>();9            TableRow row = new TableRow();10            row.AddCell(new TableCell("cell1"));11            row.AddCell(new TableCell("cell2"));12            row.AddCell(new TableCell("cell3"));13            row.AddCell(new TableCell("cell4"));14            rows.Add(row);15            ex.SetRows(rows);16            rows = ex.GetRows();17            foreach (TableRow r in rows)18            {19                Console.WriteLine(r);20            }21        }22    }23}

1using Gherkin.Ast;2{3    {4        public static void Main()5        {6            var table = new Table(new List<TableRow>7            {8                new TableRow(new List<TableCell>{new TableCell("a"), new TableCell("b")}),9                new TableRow(new List<TableCell>{new TableCell("c"), new TableCell("d")}),10                new TableRow(new List<TableCell>{new TableCell("e"), new TableCell("f")})11            });12            Console.WriteLine(table.ToString());13        }14    }15}16using Gherkin.Ast;17{18    {19        public static void Main()20        {21            var table = new Table(new List<TableRow>22            {23                new TableRow(new List<TableCell>{new TableCell("a"), new TableCell("b")}),24                new TableRow(new List<TableCell>{new TableCell("c"), new TableCell("d")}),25                new TableRow(new List<TableCell>{new TableCell("e"), new TableCell("f")})26            }, new TableRow(new List<TableCell>{new TableCell("h1"), new TableCell("h2")}));27            Console.WriteLine(table.ToString());28        }29    }30}31using Gherkin.Ast;32{33    {34        public static void Main()35        {36            var table = new Table(new Location(1, 1), new List<TableRow>37            {38                new TableRow(new List<TableCell>{new TableCell("a"), new TableCell("b")}),39                new TableRow(new List<TableCell>{new TableCell("c"), new TableCell("d")}),40                new TableRow(new List<TableCell>{new TableCell("e"), new TableCell("f")})41            }, new TableRow(new List<TableCell>{new TableCell("

1using Gherkin.Ast;2{3    {4        public static void Main(string[] args)5        {6            Examples examples = new Examples();7            TableHeader tableHeader = new TableHeader();8            TableRow tableRow = new TableRow();9            TableCell tableCell = new TableCell();10            Location location = new Location();11            Tag tag = new Tag();12            GherkinDocument gherkinDocument = new GherkinDocument();13            Feature feature = new Feature();14            Background background = new Background();15            Scenario scenario = new Scenario();16            Step step = new Step();17            DocString docString = new DocString();18            DataTable dataTable = new DataTable();19            Comment comment = new Comment();20            Language language = new Language();21            Pickle pickle = new Pickle();22            PickleStep pickleStep = new PickleStep();23            PickleTable pickleTable = new PickleTable();24            PickleDocString pickleDocString = new PickleDocString();25            PickleLocation pickleLocation = new PickleLocation();26            PickleArgument pickleArgument = new PickleArgument();27            PickleTag pickleTag = new PickleTag();28            PickleRow pickleRow = new PickleRow();29            PickleCell pickleCell = new PickleCell();