Add HttpRequestMessageToCurlTest into tests folder

Author: amingolmahalle

tests/HttpClientToCurlTest/FunctionalTest/SuccessScenariosTests.cs

@@ -0,0 +1,28 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <TargetFramework>net9.0</TargetFramework>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+
+        <IsPackable>false</IsPackable>
+      <IsTestProject>true</IsTestProject>
+    </PropertyGroup>
+
+    <ItemGroup>
+        <PackageReference Include="FluentAssertions.Json" Version="6.1.0" />
+        <PackageReference Include="Microsoft.AspNetCore.WebUtilities" Version="8.0.0" />
+        <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
+        <PackageReference Include="xunit" Version="2.6.3" />
+        <PackageReference Include="xunit.core" Version="2.6.3" />
+        <PackageReference Include="xunit.runner.visualstudio" Version="2.5.5">
+          <PrivateAssets>all</PrivateAssets>
+          <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+        </PackageReference>
+    </ItemGroup>
+
+    <ItemGroup>
+      <ProjectReference Include="..\..\src\HttpClientToCurl\HttpClientToCurl.csproj" />
+    </ItemGroup>
+
+</Project>

tests/HttpClientToCurlTest/HttpClientToCurlTest.csproj

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+using System.Net.Mime;
+using System.Text;
+using HttpClientToCurl.Builder;
+using Xunit;
+
+namespace HttpClientToCurlTest.UnitTest.MediaTypes.Json;
+
+public class FailedCurlGeneratorTests
+{
+    [Fact]
+    public void GenerateCurl_When_HttpMethod_Is_Invalid()
+    {
+        // Arrange
+        string requestBody = /*lang=json,strict*/ @"{""name"":""russel"",""requestId"":10001004,""amount"":50000}";
+
+        var requestUri = "api/test";
+        var httpRequestMessage = new HttpRequestMessage(HttpMethod.Trace, requestUri)
+        {
+            Content = new StringContent(requestBody, Encoding.UTF8, MediaTypeNames.Application.Json)
+        };
+        httpRequestMessage.Headers.Add("Authorization", "Bearer 4797c126-3f8a-454a-aff1-96c0220dae61");
+
+        using var httpClient = new HttpClient();
+        httpClient.BaseAddress = new Uri("http://localhost:1213/v1/");
+
+        // Act - Assert
+        Assert.Throws<NotSupportedException>(() => Generator.GenerateCurl(
+            httpClient,
+            httpRequestMessage,
+            null));
+    }
+}