Include WireMockOpenApiParser project (#916)

* Fix some nullability warnings for WireMockOpenApiParser

* .

* .

* .

* opt

* FromText

* ab

* .

* private const string AdminOpenApi = "/__admin/openapi";

* fix test

* rnd

* .

* urldetails

* 0

* ,

* .

* tests

* .

* CompressionUtilsTests

* ut

* .

test/WireMock.Net.Tests/Util/CultureInfoUtilsTests.cs

@@ -0,0 +1,83 @@
+using System;
+using System.Globalization;
+using FluentAssertions;
+using WireMock.Util;
+using Xunit;
+
+namespace WireMock.Net.Tests.Util;
+
+public class CultureInfoUtilsTests
+{
+    [Theory]
+    [InlineData(null, typeof(CultureInfo))]
+    [InlineData("en-US", typeof(CultureInfo))]
+    [InlineData("fr-FR", typeof(CultureInfo))]
+    [InlineData("es-ES", typeof(CultureInfo))]
+    public void Parse_ValidInputs_ReturnsExpectedCultureInfo(string? value, Type expectedType)
+    {
+        // Act
+        var result = CultureInfoUtils.Parse(value);
+
+        // Assert
+        result.Should().BeOfType(expectedType);
+    }
+
+    [Theory]
+    [InlineData("InvalidCulture")]
+    [InlineData("123456")]
+    public void Parse_InvalidInputs_ReturnsCurrentCulture(string? value)
+    {
+        // Arrange
+        var expectedCulture = CultureInfo.CurrentCulture;
+
+        // Act
+        var result = CultureInfoUtils.Parse(value);
+
+        // Assert
+        result.Should().Be(expectedCulture);
+    }
+
+#if !NETSTANDARD1_3
+    [Fact]
+    public void Parse_IntegerInput_ReturnsExpectedCultureInfo()
+    {
+        // Arrange
+        string value = "1033"; // en-US culture identifier
+        var expectedCulture = new CultureInfo(1033);
+
+        // Act
+        var result = CultureInfoUtils.Parse(value);
+
+        // Assert
+        result.Should().Be(expectedCulture);
+    }
+#endif
+
+    [Fact]
+    public void Parse_CurrentCultureInput_ReturnsCurrentCulture()
+    {
+        // Arrange
+        string value = nameof(CultureInfo.CurrentCulture);
+        var expectedCulture = CultureInfo.CurrentCulture;
+
+        // Act
+        var result = CultureInfoUtils.Parse(value);
+
+        // Assert
+        result.Should().Be(expectedCulture);
+    }
+
+    [Fact]
+    public void Parse_InvariantCultureInput_ReturnsInvariantCulture()
+    {
+        // Arrange
+        string value = nameof(CultureInfo.InvariantCulture);
+        var expectedCulture = CultureInfo.InvariantCulture;
+
+        // Act
+        var result = CultureInfoUtils.Parse(value);
+
+        // Assert
+        result.Should().Be(expectedCulture);
+    }
+}