// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.

using System.Globalization;
using System.Net;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Testing;
using Xunit;

namespace Microsoft.AspNetCore.Mvc.FunctionalTests
{
    public class XmlSerializerInputFormatterTests : IClassFixture<MvcTestFixture<XmlFormattersWebSite.Startup>>
    {
        public XmlSerializerInputFormatterTests(MvcTestFixture<XmlFormattersWebSite.Startup> fixture)
        {
            Client = fixture.CreateDefaultClient();
        }

        public HttpClient Client { get; }

        [Fact]
        public async Task CheckIfXmlSerializerInputFormatterIsCalled()
        {
            // Arrange
            var sampleInputInt = 10;
            var input = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" +
                "<DummyClass><SampleInt>"
                + sampleInputInt.ToString(CultureInfo.InvariantCulture) + "</SampleInt></DummyClass>";
            var content = new StringContent(input, Encoding.UTF8, "application/xml-xmlser");

            // Act
            var response = await Client.PostAsync("http://localhost/Home/Index", content);

            // Assert
            Assert.Equal(HttpStatusCode.OK, response.StatusCode);
            Assert.Equal(sampleInputInt.ToString(CultureInfo.InvariantCulture), await response.Content.ReadAsStringAsync());
        }

        [ConditionalFact]
        // Mono.Xml2.XmlTextReader.ReadText is unable to read the XML. This is fixed in mono 4.3.0.
        [FrameworkSkipCondition(RuntimeFrameworks.Mono)]
        public async Task ThrowsOnInvalidInput_AndAddsToModelState()
        {
            // Arrange
            var input = "Not a valid xml document";
            var content = new StringContent(input, Encoding.UTF8, "application/xml-xmlser");

            // Act
            var response = await Client.PostAsync("http://localhost/Home/Index", content);

            // Assert
            Assert.Equal(HttpStatusCode.BadRequest, response.StatusCode);
            var data = await response.Content.ReadAsStringAsync();
            Assert.Contains("An error occurred while deserializing input data.", data);
        }
    }
}
