add CoverletSettingsTests

Author: Bertk

test/coverlet.collector.tests/CoverletSettingsTests.cs

@@ -0,0 +1,56 @@
+// Copyright (c) Toni Solarin-Sodara
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+using Coverlet.Collector.DataCollection;
+using Xunit;
+
+namespace Coverlet.Collector.Tests.DataCollection
+{
+  public class CoverletSettingsTests
+  {
+    [Fact]
+    public void ToString_ReturnsCorrectFormat()
+    {
+      // Arrange
+      var settings = new CoverletSettings
+      {
+        TestModule = "TestModule.dll",
+        ReportFormats = new[] { "json", "lcov" },
+        IncludeFilters = new[] { "[*]*" },
+        IncludeDirectories = new[] { "dir1", "dir2" },
+        ExcludeFilters = new[] { "[*]ExcludeNamespace.*" },
+        ExcludeSourceFiles = new[] { "file1.cs", "file2.cs" },
+        ExcludeAttributes = new[] { "ExcludeAttribute" },
+        MergeWith = "coverage.json",
+        UseSourceLink = true,
+        SingleHit = false,
+        IncludeTestAssembly = true,
+        SkipAutoProps = false,
+        DoesNotReturnAttributes = new[] { "DoesNotReturn" },
+        DeterministicReport = true,
+        ExcludeAssembliesWithoutSources = "true"
+      };
+
+      var expectedString = "TestModule: 'TestModule.dll', " +
+                           "IncludeFilters: '[*]*', " +
+                           "IncludeDirectories: 'dir1,dir2', " +
+                           "ExcludeFilters: '[*]ExcludeNamespace.*', " +
+                           "ExcludeSourceFiles: 'file1.cs,file2.cs', " +
+                           "ExcludeAttributes: 'ExcludeAttribute', " +
+                           "MergeWith: 'coverage.json', " +
+                           "UseSourceLink: 'True'" +
+                           "SingleHit: 'False'" +
+                           "IncludeTestAssembly: 'True'" +
+                           "SkipAutoProps: 'False'" +
+                           "DoesNotReturnAttributes: 'DoesNotReturn'" +
+                           "DeterministicReport: 'True'" +
+                           "ExcludeAssembliesWithoutSources: 'true'";
+
+      // Act
+      var result = settings.ToString();
+
+      // Assert
+      Assert.Equal(expectedString, result);
+    }
+  }
+}