public async Task WriteNext_Writes()
{
using (MemoryStream ms = new MemoryStream())
using (StreamWriter sr = new StreamWriter(ms))
{
TwentyThreeAndMeV5Writer writer = new TwentyThreeAndMeV5Writer(sr, FileFormat.MyHeritageV2);
await writer.Begin();
await sr.FlushAsync();
await ms.FlushAsync();
var length = ms.Length;
await writer.WriteNext(new SNP
{
Rsid = "123123",
Chromosome = "1",
Position = "123",
Result = "GG"
});
await sr.FlushAsync();
await ms.FlushAsync();
Assert.NotEqual(length, ms.Length);
await writer.End();
}
}
public async Task WriteAllAsync_Writes()
{
int records = 5;
Mock <IFormatReader> reader = new Mock <IFormatReader>();
reader.SetupGet <bool>(x => x.EndOfFile).Returns(true);
reader.When(() => records-- > 0).SetupGet <bool>(x => x.EndOfFile).Returns(false);
reader.Setup(x => x.ReadNext()).ReturnsAsync(new SNP()
{
Rsid = "123123",
Chromosome = "1",
Position = "123",
Result = "GG"
});
using (MemoryStream ms = new MemoryStream())
using (StreamWriter sr = new StreamWriter(ms))
{
TwentyThreeAndMeV5Writer writer = new TwentyThreeAndMeV5Writer(sr, FileFormat.MyHeritageV2);
await writer.Begin();
await writer.WriteAllAsync(reader.Object);
await writer.End();
ms.Seek(0, SeekOrigin.Begin);
string content = Encoding.UTF8.GetString(ms.ToArray());
Assert.Contains("123123\t1\t123\tGG", content);
}
}
public async Task End_WritesNewLineToTheEnd()
{
using (MemoryStream ms = new MemoryStream())
using (StreamWriter sr = new StreamWriter(ms))
{
TwentyThreeAndMeV5Writer writer = new TwentyThreeAndMeV5Writer(sr, FileFormat.MyHeritageV2);
await writer.Begin();
await writer.End();
Assert.True(ms.Length > 0);
ms.Seek(0, SeekOrigin.Begin);
string content = Encoding.UTF8.GetString(ms.ToArray());
content.EndsWith(Environment.NewLine);
}
}
public async Task Begin_WritesHeaderToStream()
{
using (MemoryStream ms = new MemoryStream())
using (StreamWriter sr = new StreamWriter(ms))
{
TwentyThreeAndMeV5Writer writer = new TwentyThreeAndMeV5Writer(sr, FileFormat.MyHeritageV2);
await writer.Begin();
await sr.FlushAsync();
await ms.FlushAsync();
Assert.True(ms.Length > 0);
ms.Seek(0, SeekOrigin.Begin);
string header = Encoding.UTF8.GetString(ms.ToArray());
Assert.Contains("# This data file generated by DnaFormatConverter at:", header);
await writer.End();
}
}
public async Task WriteNext_ReturnsOnNullSNP()
{
using (MemoryStream ms = new MemoryStream())
using (StreamWriter sr = new StreamWriter(ms))
{
TwentyThreeAndMeV5Writer writer = new TwentyThreeAndMeV5Writer(sr, FileFormat.MyHeritageV2);
await writer.Begin();
await sr.FlushAsync();
await ms.FlushAsync();
var length = ms.Length;
await writer.WriteNext(null);
await sr.FlushAsync();
await ms.FlushAsync();
Assert.Equal(length, ms.Length);
await writer.End();
}
}