Useful classes for data-driven tests in #csharp

gistfile1.txt

using System;
using System.Collections.Generic;
using System.Globalization;
using System.Reflection;
using Microsoft.VisualStudio.TestTools.UnitTesting;

namespace FooBar
{
    public class FooBar : Attribute, ITestDataSource
    {
        private readonly string[] _columnNames;
        private readonly string _filePath;
        private readonly string _tableName;

        public MsTestXmlFileDataAttribute(string filePath, string tableName, params string[] columnNames)
        {
            _filePath = filePath;
            _tableName = tableName;
            _columnNames = columnNames;
        }

        public IEnumerable<object[]> GetData(MethodInfo testMethod)
        {
            return TestsUtils.GetData(_filePath, _tableName, _columnNames);
        }

        public string GetDisplayName(MethodInfo methodInfo, object[] data)
        {
            return data != null
                ? string.Format(CultureInfo.CurrentCulture, "XmlData - {0} ({1})", methodInfo.Name,
                    string.Join(",", data))
                : null;
        }
    }
}

Usage.cs

[Theory]
[XUnitJsonFileData("TestData/Some.json", typeof(SomeTestData))]
public void ShouldDoSth(SomeTestData data) {}

[TestMethod]
[DeploymentItem("TestData/Some.xml")]
[MsTestXmlFileData("Some.xml", "DataSet", "In1", "In2", "In3", "ExpectedOutput")]
public void ShouldDoSth(string in1, string in2, string in3, string output) {}

XUnitJsonFileDataAttribute.cs

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Text.Json;
using Xunit.Sdk;

namespace FooBar
{
    public class XUnitJsonFileDataAttribute : DataAttribute
    {
        private readonly object[][] deserializedData;

        public XUnitJsonFileDataAttribute(string filePath, Type type)
        {
            var data = File.ReadAllText(filePath);
            deserializedData = ((object[])JsonSerializer.Deserialize(data, type.MakeArrayType()))
                .Select(f => new[] { f })
                .ToArray();
        }

        public override IEnumerable<object[]> GetData(MethodInfo testMethod)
        {            
            return deserializedData;
        }
    }
}

XUnitXmlFileDataAttribute.cs

using System.Collections.Generic;
using System.Reflection;
using Xunit.Sdk;

namespace FooBar
{
    public class XUnitXmlFileDataAttribute : DataAttribute
    {
        private readonly string[] _columnNames;
        private readonly string _filePath;
        private readonly string _tableName;

        public XUnitXmlFileDataAttribute(string filePath, string tableName, params string[] columnNames)
        {
            _filePath = filePath;
            _tableName = tableName;
            _columnNames = columnNames;
        }

        public override IEnumerable<object[]> GetData(MethodInfo testMethod)
        {
            return TestsUtils.GetData(_filePath, _tableName, _columnNames);
        }
    }
}