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WebHelperTests.cs

using FluentAssertions;
using Microsoft.AspNetCore.Http;
using Nop.Core;
using NUnit.Framework;

namespace Nop.Tests.Nop.Core.Tests;

[TestFixture]
public class WebHelperTests : BaseNopTest
{
    private HttpContext _httpContext;
    private IWebHelper _webHelper;

    [OneTimeSetUp]
    public void SetUp()
    {
        _webHelper = GetService();
        _httpContext = GetService().HttpContext;

        var queryString = new QueryString(string.Empty);
        queryString = queryString.Add("Key1", "Value1");
        queryString = queryString.Add("Key2", "Value2");
        _httpContext.Request.QueryString = queryString;
    }

    [OneTimeTearDown]
    public void TearDown()
    {
        var queryString = new QueryString(string.Empty);
        _httpContext.Request.QueryString = queryString;
    }

    [Test]
    public void CanGetStoreHostWithoutSsl()
    {
        _webHelper.GetStoreHost(false).Should().Be($"http://{NopTestsDefaults.HostIpAddress}/");
    }

    [Test]
    public void CanGetStoreHostWithSsl()
    {
        _webHelper.GetStoreHost(true).Should().Be($"https://{NopTestsDefaults.HostIpAddress}/");
    }

    [Test]
    public void CanGetStoreLocationWithoutSsl()
    {
        _webHelper.GetStoreLocation(false).Should().Be($"http://{NopTestsDefaults.HostIpAddress}/");
    }

    [Test]
    public void CanGetStoreLocationWithSsl()
    {
        _webHelper.GetStoreLocation(true).Should().Be($"https://{NopTestsDefaults.HostIpAddress}/");
    }

    [Test]
    public void CanGetStoreLocationInVirtualDirectory()
    {
        _httpContext.Request.PathBase = "/nopCommercepath";
        _webHelper.GetStoreLocation(false).Should().Be($"http://{NopTestsDefaults.HostIpAddress}/nopCommercepath/");
        _httpContext.Request.PathBase = string.Empty;
    }

    [Test]
    public void CanGetQueryString()
    {
        _webHelper.QueryString("Key1").Should().Be("Value1");
        _webHelper.QueryString("Key2").Should().Be("Value2");
        _webHelper.QueryString("Key3").Should().Be(null);
    }

    [Test]
    public void CanRemoveQueryString()
    {
        //empty URL
        _webHelper.RemoveQueryString(null, null).Should().Be(string.Empty);
        //empty key
        _webHelper.RemoveQueryString($"http://{NopTestsDefaults.HostIpAddress}/", null).Should().Be($"http://{NopTestsDefaults.HostIpAddress}/");
        //non-existing param with fragment
        _webHelper.RemoveQueryString($"http://{NopTestsDefaults.HostIpAddress}/#fragment", "param").Should().Be($"http://{NopTestsDefaults.HostIpAddress}/#fragment");
        //first param (?)
        _webHelper.RemoveQueryString($"http://{NopTestsDefaults.HostIpAddress}/?param1=value1¶m2=value1", "param1")
            .Should().Be($"http://{NopTestsDefaults.HostIpAddress}/?param2=value1");
        //second param (&)
        _webHelper.RemoveQueryString($"http://{NopTestsDefaults.HostIpAddress}/?param1=value1¶m2=value1", "param2")
            .Should().Be($"http://{NopTestsDefaults.HostIpAddress}/?param1=value1");
        //non-existing param
        _webHelper.RemoveQueryString($"http://{NopTestsDefaults.HostIpAddress}/?param1=value1¶m2=value1", "param3")
            .Should().Be($"http://{NopTestsDefaults.HostIpAddress}/?param1=value1¶m2=value1");
        //with fragment
        _webHelper.RemoveQueryString($"http://{NopTestsDefaults.HostIpAddress}/?param1=value1¶m2=value1#fragment", "param1")
            .Should().Be($"http://{NopTestsDefaults.HostIpAddress}/?param2=value1#fragment");
        //specific value
        _webHelper.RemoveQueryString($"http://{NopTestsDefaults.HostIpAddress}/?param1=value1¶m1=value2¶m2=value1", "param1", "value1")
            .Should().Be($"http://{NopTestsDefaults.HostIpAddress}/?param1=value2¶m2=value1");
        //all values
        _webHelper.RemoveQueryString($"http://{NopTestsDefaults.HostIpAddress}/?param1=value1¶m1=value2¶m2=value1", "param1")
            .Should().Be($"http://{NopTestsDefaults.HostIpAddress}/?param2=value1");
    }

    [Test]
    public void CanModifyQueryString()
    {
        //empty URL
        _webHelper.ModifyQueryString(null, null).Should().Be(string.Empty);
        //empty key
        _webHelper.ModifyQueryString($"http://{NopTestsDefaults.HostIpAddress}/", null).Should().Be($"http://{NopTestsDefaults.HostIpAddress}/");
        //empty value
        _webHelper.ModifyQueryString($"http://{NopTestsDefaults.HostIpAddress}/", "param").Should().Be($"http://{NopTestsDefaults.HostIpAddress}/?param=");
        //first param (?)
        _webHelper.ModifyQueryString($"http://{NopTestsDefaults.HostIpAddress}/?param1=value1¶m2=value1", "Param1", "value2")
            .Should().Be($"http://{NopTestsDefaults.HostIpAddress}/?param1=value2¶m2=value1");
        //second param (&)
        _webHelper.ModifyQueryString($"http://{NopTestsDefaults.HostIpAddress}/?param1=value1¶m2=value1", "param2", "value2")
            .Should().Be($"http://{NopTestsDefaults.HostIpAddress}/?param1=value1¶m2=value2");
        //non-existing param
        _webHelper.ModifyQueryString($"http://{NopTestsDefaults.HostIpAddress}/?param1=value1¶m2=value1", "param3", "value1")
            .Should().Be($"http://{NopTestsDefaults.HostIpAddress}/?param1=value1¶m2=value1¶m3=value1");
        //multiple values
        _webHelper.ModifyQueryString($"http://{NopTestsDefaults.HostIpAddress}/?param1=value1¶m2=value1", "param1", "value1", "value2", "value3")
            .Should().Be($"http://{NopTestsDefaults.HostIpAddress}/?param1=value1,value2,value3¶m2=value1");
        //with fragment
        _webHelper.ModifyQueryString($"http://{NopTestsDefaults.HostIpAddress}/?param1=value1¶m2=value1#fragment", "param1", "value2")
            .Should().Be($"http://{NopTestsDefaults.HostIpAddress}/?param1=value2¶m2=value1#fragment");
    }

    [Test]
    public void CanModifyQueryStringInVirtualDirectory()
    {
        _httpContext.Request.PathBase = "/nopCommercepath";
        _webHelper.ModifyQueryString("/nopCommercepath/Controller/Action", "param1", "value1").Should().Be("/nopCommercepath/Controller/Action?param1=value1");
        _httpContext.Request.PathBase = string.Empty;
    }
}