WireMock.Net/test/WireMock.Net.Tests/ResponseBuilders/ResponseWithHandlebarsRandomTests.cs

using System.Linq;
using System.Threading.Tasks;
using Moq;
using Newtonsoft.Json.Linq;
using NFluent;
using WireMock.Handlers;
using WireMock.Models;
using WireMock.ResponseBuilders;
using WireMock.Settings;
using WireMock.Types;
using Xunit;

namespace WireMock.Net.Tests.ResponseBuilders;

public class ResponseWithHandlebarsRandomTests
{
    private const string ClientIp = "::1";
    private readonly WireMockServerSettings _settings = new();

    private readonly Mock<IMapping> _mappingMock;

    public ResponseWithHandlebarsRandomTests()
    {
        _mappingMock = new Mock<IMapping>();

        var filesystemHandlerMock = new Mock<IFileSystemHandler>(MockBehavior.Strict);
        filesystemHandlerMock.Setup(fs => fs.ReadResponseBodyAsString(It.IsAny<string>())).Returns("abc");

        _settings.FileSystemHandler = filesystemHandlerMock.Object;
    }

    [Fact]
    public async Task Response_ProvideResponseAsync_Handlebars_Random1()
    {
        // Assign
        var request = new RequestMessage(new UrlDetails("http://localhost:1234"), "GET", ClientIp);

        var responseBuilder = Response.Create()
            .WithBodyAsJson(new
            {
                Text = "{{Random Type=\"Text\" Min=8 Max=20}}",
                DateTime = "{{Random Type=\"DateTime\"}}",
                Integer = "{{Random Type=\"Integer\" Min=1000 Max=1000}}",
                Long = "{{Random Type=\"Long\" Min=77777777 Max=99999999}}"
            })
            .WithTransformer();

        // Act
        var response = await responseBuilder.ProvideResponseAsync(_mappingMock.Object, request, _settings).ConfigureAwait(false);

        // Assert
        JObject j = JObject.FromObject(response.Message.BodyData.BodyAsJson);
        Check.That(j["Text"].Value<string>()).IsNotEmpty();
        Check.That(j["Integer"].Value<int>()).IsEqualTo(1000);
        Check.That(j["Long"].Value<long>()).IsStrictlyGreaterThan(77777777).And.IsStrictlyLessThan(99999999);
    }

    [Fact]
    public async Task Response_ProvideResponseAsync_Handlebars_Random1_Boolean()
    {
        // Assign
        var request = new RequestMessage(new UrlDetails("http://localhost:1234"), "GET", ClientIp);

        var responseBuilder = Response.Create()
            .WithBodyAsJson(new
            {
                Value = "{{Random Type=\"Boolean\"}}"
            })
            .WithTransformer();

        // Act
        var response = await responseBuilder.ProvideResponseAsync(_mappingMock.Object, request, _settings).ConfigureAwait(false);

        // Assert
        JObject j = JObject.FromObject(response.Message.BodyData.BodyAsJson);
        Check.That(j["Value"].Type).IsEqualTo(JTokenType.Boolean);
    }

    [Theory]
    [InlineData(ReplaceNodeOptions.Evaluate, JTokenType.Integer)]
    //[InlineData(ReplaceNodeOptions.Bool, JTokenType.String)]
    //[InlineData(ReplaceNodeOptions.Integer, JTokenType.Integer)]
    //[InlineData(ReplaceNodeOptions.Bool | ReplaceNodeOptions.Integer, JTokenType.Integer)]
    public async Task Response_ProvideResponseAsync_Handlebars_Random1_Integer(ReplaceNodeOptions options, JTokenType expected)
    {
        // Assign
        var request = new RequestMessage(new UrlDetails("http://localhost:1234"), "GET", ClientIp);

        var responseBuilder = Response.Create()
            .WithBodyAsJson(new
            {
                Value = "{{Random Type=\"Integer\"}}"
            })
            .WithTransformer(options);

        // Act
        var response = await responseBuilder.ProvideResponseAsync(_mappingMock.Object, request, _settings).ConfigureAwait(false);

        // Assert
        JObject j = JObject.FromObject(response.Message.BodyData.BodyAsJson);
        Check.That(j["Value"].Type).IsEqualTo(expected);
    }

    [Fact]
    public async Task Response_ProvideResponseAsync_Handlebars_Random1_Guid()
    {
        // Assign
        var request = new RequestMessage(new UrlDetails("http://localhost:1234"), "GET", ClientIp);

        var responseBuilder = Response.Create()
            .WithBodyAsJson(new
            {
                Guid1 = "{{Random Type=\"Guid\" Uppercase=false}}",
                Guid2 = "{{Random Type=\"Guid\"}}"
            })
            .WithTransformer();

        // Act
        var response = await responseBuilder.ProvideResponseAsync(_mappingMock.Object, request, _settings).ConfigureAwait(false);

        // Assert
        JObject j = JObject.FromObject(response.Message.BodyData.BodyAsJson);
        string guid1 = j["Guid1"].Value<string>();
        Check.That(guid1.ToUpper()).IsNotEqualTo(guid1);
        string guid2 = j["Guid2"].Value<string>();
        Check.That(guid2.ToUpper()).IsEqualTo(guid2);
    }

    [Fact]
    public async Task Response_ProvideResponseAsync_Handlebars_Random1_StringList()
    {
        // Assign
        var request = new RequestMessage(new UrlDetails("http://localhost:1234"), "GET", ClientIp);

        var responseBuilder = Response.Create()
            .WithBodyAsJson(new
            {
                StringValue = "{{Random Type=\"StringList\" Values=[\"a\", \"b\", \"c\"]}}"
            })
            .WithTransformer();

        // Act
        var response = await responseBuilder.ProvideResponseAsync(_mappingMock.Object, request, _settings).ConfigureAwait(false);

        // Assert
        JObject j = JObject.FromObject(response.Message.BodyData.BodyAsJson);
        string value = j["StringValue"].Value<string>();
        Check.That(new[] { "a", "b", "c" }.Contains(value)).IsTrue();
    }

    [Fact]
    public async Task Response_ProvideResponseAsync_Handlebars_Random2()
    {
        // Assign
        var request = new RequestMessage(new UrlDetails("http://localhost:1234"), "GET", ClientIp);

        var responseBuilder = Response.Create()
            .WithBodyAsJson(new
            {
                Integer = "{{#Random Type=\"Integer\" Min=10000000 Max=99999999}}{{this}}{{/Random}}",
            })
            .WithTransformer();

        // Act
        var response = await responseBuilder.ProvideResponseAsync(_mappingMock.Object, request, _settings).ConfigureAwait(false);

        // Assert
        JObject j = JObject.FromObject(response.Message.BodyData.BodyAsJson);
        Check.That(j["Integer"].Value<int>()).IsStrictlyGreaterThan(10000000).And.IsStrictlyLessThan(99999999);
    }
}