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

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

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

    [Test]
    public void AppendToFile()
    {
      engine = new FileHelperEngine(typeof (SampleType));

      SampleType[] res = new SampleType[2];

      res[0] = new SampleType();
      res[1] = new SampleType();

      res[0].Field1 = DateTime.Now.AddDays(1).Date;
      res[0].Field2 = "je";
      res[0].Field3 = 0;

      res[1].Field1 = DateTime.Now.Date;
      res[1].Field2 = "ho";
      res[1].Field3 = 2;

      engine.WriteFile(@"test.txt", res);
      engine.AppendToFile(@"test.txt", res);

      SampleType[] res2 = (SampleType[]) engine.ReadFile(@"test.txt");

      Assert.AreEqual(4, res2.Length);
      Assert.AreEqual(res[0].Field1, res2[0].Field1);
      Assert.AreEqual(res[1].Field1, res2[1].Field1);
      Assert.AreEqual(res[0].Field1, res2[2].Field1);
      Assert.AreEqual(res[1].Field1, res2[3].Field1);
    }

    [Test]
    public void AppendOneToFile()
    { 
      engine = new FileHelperEngine(typeof (SampleType));

      SampleType[] res = new SampleType[2];

      res[0] = new SampleType();
      res[1] = new SampleType();

      res[0].Field1 = DateTime.Now.AddDays(1).Date;
      res[0].Field2 = "je";
      res[0].Field3 = 0;

      res[1].Field1 = DateTime.Now.Date;
      res[1].Field2 = "ho";
      res[1].Field3 = 2;

      engine.WriteFile(@"test.txt", res);

      SampleType record = new SampleType();

      record.Field1 = DateTime.Now.Date;
      record.Field2 = "h2";
      record.Field3 = 2;

      engine.AppendToFile(@"test.txt", record);

      SampleType[] res2 = (SampleType[]) engine.ReadFile(@"test.txt");

      Assert.AreEqual(3, res2.Length);
      Assert.AreEqual(res[0].Field1, res2[0].Field1);
      Assert.AreEqual(res[1].Field1, res2[1].Field1);
      Assert.AreEqual(DateTime.Now.Date, res2[2].Field1);
    }

    [Test]
    public void AppendToEmpty()
    {

      File.Copy(Common.TestPath(@"Good\TestEmpty.txt"), "tempEmpty.txt", true);
      
      engine = new FileHelperEngine(typeof (SampleType));

      SampleType[] res = new SampleType[1];

      res[0] = new SampleType();

      res[0].Field1 = DateTime.Now.AddDays(1).Date;
      res[0].Field2 = "je";
      res[0].Field3 = 0;

      engine.AppendToFile(@"tempEmpty.txt", res);

      SampleType[] res2 = (SampleType[]) engine.ReadFile(@"tempEmpty.txt");

      Assert.AreEqual(1, res2.Length);
      Assert.AreEqual(res[0].Field1, res2[0].Field1);

      if (File.Exists("tempEmpty.txt")) File.Delete("tempEmpty.txt");

    }


    [Test]
    public void AppendToEmptyAsync()
    {

      
      FileHelperEngine engineOld = new FileHelperEngine(typeof (SampleType));
      FileHelperAsyncEngine engine = new FileHelperAsyncEngine(typeof (SampleType));

      SampleType rec = new SampleType();

      rec.Field1 = DateTime.Now.AddDays(1).Date;
      rec.Field2 = "je";
      rec.Field3 = 0;

      File.Copy(Common.TestPath(@"Good\TestEmpty.txt"), "tempEmpty.txt", true);

      engine.BeginAppendToFile(@"tempEmpty.txt");
      engine.WriteNext(rec);
      engine.Close();

      SampleType[] res2 = (SampleType[]) engineOld.ReadFile(@"tempEmpty.txt");

      Assert.AreEqual(1, res2.Length);
      Assert.AreEqual(rec.Field1, res2[0].Field1);

      if (File.Exists("tempEmpty.txt")) File.Delete("tempEmpty.txt");

    }




    [Test]
    public void BadAppend()
    {
      engine = new FileHelperEngine(typeof (SampleType));

      File.Copy(@"..\data\Bad\BadAdd1.txt", "BadAddTemp1.txt", true);

      SampleType record = new SampleType();

      record.Field1 = DateTime.Now.Date;
      record.Field2 = "AS";
      record.Field3 = 66;

      engine.AppendToFile(@"BadAddTemp1.txt", record);

      SampleType[] res2 = (SampleType[]) engine.ReadFile(@"BadAddTemp1.txt");
      Assert.AreEqual(4, res2.Length);
      Assert.AreEqual("AS", res2[3].Field2);
      Assert.AreEqual(66, res2[3].Field3);
    }

    [Test]
    public void BadAppend2()
    {
      engine = new FileHelperEngine(typeof (SampleType));

      File.Copy(@"..\data\Bad\BadAdd2.txt", "BadAddTemp2.txt", true);

      SampleType record = new SampleType();

      record.Field1 = DateTime.Now.Date;
      record.Field2 = "AS";
      record.Field3 = 66;

      engine.AppendToFile(@"BadAddTemp2.txt", record);

      SampleType[] res2 = (SampleType[]) engine.ReadFile(@"BadAddTemp2.txt");
      Assert.AreEqual(4, res2.Length);
      Assert.AreEqual("AS", res2[3].Field2);
      Assert.AreEqual(66, res2[3].Field3);
    }


  }
}