Sort.cs :  » Persistence-Frameworks » FileHelpers-Library » FileHelpersTests » CommonTests » C# / CSharp Open Source

using System;
using System.Collections;
using System.IO;
using FileHelpers;
using NUnit.Framework;

namespace FileHelpersTests.CommonTests{
  [TestFixture]
  public class SortRecords
  {
    FileHelperEngine engine;

    [Test]
    public void Sort1()
    {
      engine = new FileHelperEngine(typeof (CustomersVerticalBar));

      CustomersVerticalBar[] res =  engine.ReadFile(Common.TestPath(@"good\Sort1.txt")) as CustomersVerticalBar[];

      Assert.AreEqual(8, res.Length);

      CommonEngine.SortRecordsByField(res, "CompanyName");

      Assert.AreEqual(8, res.Length);

      Assert.AreEqual("Alfreds Futterkiste", res[0].CompanyName);
      Assert.AreEqual("La maison d'Asie", res[1].CompanyName);
      Assert.AreEqual("Tortuga Restaurante", res[2].CompanyName);
    }

    [Test]
    public void Sort2()
    {
      engine = new FileHelperEngine(typeof (CustomersSort));

      CustomersSort[] res =  engine.ReadFile(Common.TestPath(@"good\Sort1.txt")) as CustomersSort[];

      Assert.AreEqual(8, res.Length);

      CommonEngine.SortRecordsByField(res, "CompanyName");

      Assert.AreEqual(8, res.Length);

      Assert.AreEqual("Alfreds Futterkiste", res[0].CompanyName);
      Assert.AreEqual("La maison d'Asie", res[1].CompanyName);
      Assert.AreEqual("Tortuga Restaurante", res[2].CompanyName);
    }

    [Test]
    [ExpectedException(typeof(BadUsageException))]
    public void Sort3()
    {
      engine = new FileHelperEngine(typeof (CustomersVerticalBar));

      CustomersVerticalBar[] res =  engine.ReadFile(Common.TestPath(@"good\Sort1.txt")) as CustomersVerticalBar[];

      Assert.AreEqual(8, res.Length);

      CommonEngine.SortRecords(res);

      Assert.AreEqual(8, res.Length);

      Assert.AreEqual("Alfreds Futterkiste", res[0].CompanyName);
      Assert.AreEqual("La maison d'Asie", res[1].CompanyName);
      Assert.AreEqual("Tortuga Restaurante", res[2].CompanyName);
    }

    [Test]
    public void Sort4()
    {
      engine = new FileHelperEngine(typeof (CustomersSort));

      CustomersSort[] res =  engine.ReadFile(Common.TestPath(@"good\Sort1.txt")) as CustomersSort[];

      Assert.AreEqual(8, res.Length);

      CommonEngine.SortRecords(res);

      Assert.AreEqual(8, res.Length);

      Assert.AreEqual("Alfreds Futterkiste", res[0].CompanyName);
      Assert.AreEqual("La maison d'Asie", res[1].CompanyName);
      Assert.AreEqual("Tortuga Restaurante", res[2].CompanyName);
    }

    [Test]
    [ExpectedException(typeof(BadUsageException))]
    public void Sort5()
    {
      engine = new FileHelperEngine(typeof (CustomersSort));

      CustomersSort[] res =  engine.ReadFile(Common.TestPath(@"good\Sort1.txt")) as CustomersSort[];
      Assert.AreEqual(8, res.Length);

      CommonEngine.SortRecordsByField(res, "CompanyNameNoExistHere");
    }

    [DelimitedRecord("|")]
    private class CustomersSort: IComparable
    {
      public string CustomerID;
      public string CompanyName;
      public string ContactName;
      public string ContactTitle;
      public string Address;
      public string City;
      public string Country;

      #region IComparable Members

      public int CompareTo(object obj)
      {
        if (this == obj) return 0;
        
        CustomersSort to = (CustomersSort) obj;

        if (to == null) return int.MaxValue;

        return CompanyName.CompareTo(to.CompanyName);
      }

      #endregion
    }

  }
}