feat(config): add exclude-test-files-in-report option

docs/configuration.md

@@ -283,6 +283,14 @@ Config file: `report-file-name`
 
 If HTML and/or JSON reporting is being used you can use this option to change the report file name.
 
+### `exclude-test-files-in-report` <`flag`>
+
+Default: `false`
+Command line: `exclude-test-files-in-report`
+Config file: `exclude-test-files-in-report`
+
+This flag excludes the test files from the json report.
+
 ### `additional-timeout` <`number`>
 
 Default: `5000`  

src/Stryker.Abstractions/Options/IStrykerOptions.cs

@@ -22,6 +22,7 @@ public interface IStrykerOptions
     IEnumerable<IExclusionPattern> DiffIgnoreChanges { get; init; }
     IEnumerable<LinqExpression> ExcludedLinqExpressions { get; init; }
     IEnumerable<Mutator> ExcludedMutations { get; init; }
+    bool ExcludeTestFilesInReport { get; init; }
     string FallbackVersion { get; init; }
     IEnumerable<Regex> IgnoredMethods { get; init; }
     bool IsSolutionContext { get; }

src/Stryker.CLI/Stryker.CLI.UnitTest/ConfigBuilderTests.cs

@@ -224,6 +224,7 @@ private static Mock<IStrykerInputs> GetMockInputs()
         inputs.Setup(x => x.ReportFileNameInput).Returns(new ReportFileNameInput());
         inputs.Setup(x => x.BreakOnInitialTestFailureInput).Returns(new BreakOnInitialTestFailureInput());
         inputs.Setup(x => x.OutputPathInput).Returns(new OutputPathInput());
+        inputs.Setup(x => x.ExcludeTestFilesInReportInput).Returns(new ExcludeTestFilesInReportInput());
 
         return inputs;
     }

src/Stryker.CLI/Stryker.CLI.UnitTest/StrykerCLIInitCommandTests.cs

@@ -58,6 +58,7 @@ public void Init()
         config.TestProjects.ShouldBe(new TestProjectsInput().Default);
         config.DashboardUrl.ShouldBe(new DashboardUrlInput().Default);
         config.BreakOnInitialTestFailure.ShouldBe(new BreakOnInitialTestFailureInput().Default);
+        config.ExcludeTestFilesInReport.ShouldBe(new ExcludeTestFilesInReportInput().Default);
     }
 
     [TestMethod]
@@ -123,7 +124,8 @@ public void InitOverride()
             "--mutation-level", "advanced",
             "--disable-bail",
             "--test-project", "testProject",
-            "--break-on-initial-test-failure"
+            "--break-on-initial-test-failure",
+            "--exclude-test-files-in-report"
         });
 
         _strykerRunnerMock.VerifyAll();
@@ -144,5 +146,6 @@ public void InitOverride()
         config.DisableBail.ShouldBe(true);
         config.TestProjects.ShouldHaveSingleItem().ShouldBe("testProject");
         config.BreakOnInitialTestFailure.ShouldBe(true);
+        config.ExcludeTestFilesInReport.ShouldBe(true);
     }
 }

src/Stryker.CLI/Stryker.CLI/CommandLineConfig/CommandLineConfigReader.cs

@@ -204,6 +204,7 @@ private void PrepareCliOptions(IStrykerInputs inputs)
         AddCliInput(inputs.DashboardApiKeyInput, "dashboard-api-key", null, category: InputCategory.Reporting);
         AddCliInput(inputs.AzureFileStorageSasInput, "azure-fileshare-sas", null, category: InputCategory.Reporting);
         AddCliInput(inputs.OutputPathInput, "output", "O", optionType: CommandOptionType.SingleValue, category: InputCategory.Reporting);
+        AddCliInput(inputs.ExcludeTestFilesInReportInput, "exclude-test-files-in-report", null, optionType: CommandOptionType.NoValue, category: InputCategory.Reporting);
         // Category: Misc
         AddCliInput(inputs.BreakOnInitialTestFailureInput, "break-on-initial-test-failure", null, optionType: CommandOptionType.NoValue, category: InputCategory.Misc);
         AddCliInput(inputs.DevModeInput, "dev-mode", null, optionType: CommandOptionType.NoValue, category: InputCategory.Misc);

src/Stryker.CLI/Stryker.CLI/FileBasedInput.cs

@@ -94,6 +94,9 @@ public class FileBasedInput : IExtraData
     [JsonPropertyName("break-on-initial-test-failure")]
     public bool? BreakOnInitialTestFailure { get; init; }
 
+    [JsonPropertyName("exclude-test-files-in-report")]
+    public bool? ExcludeTestFilesInReport { get; init; }
+
     [JsonExtensionData]
     public Dictionary<string, JsonElement> ExtraData { get; init; }
 }

src/Stryker.CLI/Stryker.CLI/FileConfigReader.cs

@@ -71,6 +71,7 @@ public static void DeserializeConfig(string configFilePath, IStrykerInputs input
 
         inputs.ReportFileNameInput.SuppliedInput = config.ReportFileName;
         inputs.BreakOnInitialTestFailureInput.SuppliedInput = config.BreakOnInitialTestFailure;
+        inputs.ExcludeTestFilesInReportInput.SuppliedInput = config.ExcludeTestFilesInReport;
     }
 
     private static FileBasedInput LoadConfig(string configFilePath)

src/Stryker.CLI/Stryker.CLI/FileConfigWriter.cs

@@ -63,7 +63,8 @@ private static FileBasedInputOuter CreateConfig(IStrykerInputs inputs)
                 IgnoreMethods = inputs.IgnoredMethodsInput.SuppliedInput?.ToArray() ?? inputs.IgnoredMethodsInput.Default.ToArray(),
                 ReportFileName = inputs.ReportFileNameInput.SuppliedInput ?? inputs.ReportFileNameInput.Default,
                 BreakOnInitialTestFailure = inputs.BreakOnInitialTestFailureInput.SuppliedInput ?? inputs.BreakOnInitialTestFailureInput.Default,
-                Concurrency = inputs.ConcurrencyInput.SuppliedInput ?? inputs.ConcurrencyInput.Default
+                Concurrency = inputs.ConcurrencyInput.SuppliedInput ?? inputs.ConcurrencyInput.Default,
+                ExcludeTestFilesInReport = inputs.ExcludeTestFilesInReportInput.SuppliedInput ?? inputs.ExcludeTestFilesInReportInput.Default
             }
         };
     }

src/Stryker.Core/Stryker.Core.UnitTest/Options/Inputs/ExcludeTestFilesInReportTests.cs

@@ -0,0 +1,27 @@
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Shouldly;
+using Stryker.Abstractions.Options.Inputs;
+
+namespace Stryker.Core.UnitTest.Options.Inputs;
+
+[TestClass]
+public class ExcludeTestFilesInReportTests : TestBase
+{
+    [TestMethod]
+    public void ShouldHaveHelpText()
+    {
+        var target = new ExcludeTestFilesInReportInput();
+        target.HelpText.ShouldBe("Exclude test files in the report. This may reduce the size of the report significantly. | default: 'False'");
+    }
+
+    [TestMethod]
+    [DataRow(null, false)]
+    [DataRow(false, false)]
+    [DataRow(true, true)]
+    public void ShouldTranslateInputToExpectedResult(bool? argValue, bool expected)
+    {
+        var validatedInput = new ExcludeTestFilesInReportInput { SuppliedInput = argValue }.Validate();
+
+        validatedInput.ShouldBe(expected);
+    }
+}

src/Stryker.Core/Stryker.Core/Reporters/Json/JsonReport.cs

@@ -26,7 +26,10 @@ private JsonReport(IStrykerOptions options, IReadOnlyProjectComponent mutationRe
         ProjectRoot = mutationReport.FullPath;
 
         Merge(Files, GenerateReportComponents(mutationReport));
-        AddTestFiles(testProjectsInfo);
+        if (!options.ExcludeTestFilesInReport)
+        {
+            AddTestFiles(testProjectsInfo);
+        }
     }
 
     public static IJsonReport Build(IStrykerOptions options, IReadOnlyProjectComponent mutationReport, ITestProjectsInfo testProjectsInfo) => new JsonReport(options, mutationReport, testProjectsInfo);

src/Stryker.Options/Options/Inputs/ExcludeTestFilesInReportInput.cs

@@ -0,0 +1,8 @@
+namespace Stryker.Abstractions.Options.Inputs;
+
+public class ExcludeTestFilesInReportInput : Input<bool?>
+{
+    public override bool? Default => false;
+    protected override string Description => "Exclude test files in the report. This may reduce the size of the report significantly.";
+    public bool Validate() => SuppliedInput ?? false;
+}

src/Stryker.Options/Options/StrykerInputs.cs

@@ -21,6 +21,7 @@ public interface IStrykerInputs
     DiffIgnoreChangesInput DiffIgnoreChangesInput { get; init; }
     DisableBailInput DisableBailInput { get; set; }
     DisableMixMutantsInput DisableMixMutantsInput { get; set; }
+    ExcludeTestFilesInReportInput ExcludeTestFilesInReportInput { get; init; }
     IgnoreMutationsInput IgnoreMutationsInput { get; init; }
     FallbackVersionInput FallbackVersionInput { get; init; }
     IgnoreMethodsInput IgnoredMethodsInput { get; init; }
@@ -107,6 +108,7 @@ public StrykerInputs(IFileSystem fileSystem = null)
     public OpenReportInput OpenReportInput { get; init; } = new();
     public OpenReportEnabledInput OpenReportEnabledInput { get; init; } = new();
     public BreakOnInitialTestFailureInput BreakOnInitialTestFailureInput { get; init; } = new();
+    public ExcludeTestFilesInReportInput ExcludeTestFilesInReportInput { get; init; } = new();
 
     public IStrykerOptions ValidateAll()
     {
@@ -148,6 +150,7 @@ public IStrykerOptions ValidateAll()
             AdditionalTimeout = AdditionalTimeoutInput.Validate(),
             ExcludedMutations = IgnoreMutationsInput.Validate<Mutator>(),
             ExcludedLinqExpressions = IgnoreMutationsInput.ValidateLinqExpressions(),
+            ExcludeTestFilesInReport = ExcludeTestFilesInReportInput.Validate(),
             IgnoredMethods = IgnoredMethodsInput.Validate(),
             Mutate = MutateInput.Validate(),
             LanguageVersion = LanguageVersionInput.Validate(),

src/Stryker.Options/Options/StrykerOptions.cs

@@ -232,6 +232,11 @@ public class StrykerOptions : IStrykerOptions
     /// </summary>
     public IProvideId MutantIdProvider {get; set;}
 
+    /// <summary>
+    /// When true, excludes the test files in the report.
+    /// </summary>
+    public bool ExcludeTestFilesInReport { get; init; }
+
 
     private readonly string _workingDirectoryField;