/// <exception cref="System.IO.IOException"/>
private static void ReadTest(FileSystem fs, RandomDatum[] data, string file)
{
RandomDatum v = new RandomDatum();
int sample = (int)Math.Sqrt(data.Length);
Random random = new Random();
Log.Info("reading " + sample + " records");
SetFile.Reader reader = new SetFile.Reader(fs, file, conf);
for (int i = 0; i < sample; i++)
{
if (!reader.Seek(data[random.Next(data.Length)]))
{
throw new RuntimeException("wrong value at " + i);
}
}
reader.Close();
Log.Info("done reading " + data.Length);
}
/// <summary>
/// test
/// <c>SetFile.Reader</c>
/// methods
/// next(), get() in combination
/// </summary>
public virtual void TestSetFileAccessMethods()
{
try
{
FileSystem fs = FileSystem.GetLocal(conf);
int size = 10;
WriteData(fs, size);
SetFile.Reader reader = CreateReader(fs);
Assert.True("testSetFileWithConstruction1 error !!!", reader.Next
(new IntWritable(0)));
// don't know why reader.get(i) return i+1
Assert.Equal("testSetFileWithConstruction2 error !!!", new IntWritable
(size / 2 + 1), reader.Get(new IntWritable(size / 2)));
NUnit.Framework.Assert.IsNull("testSetFileWithConstruction3 error !!!", reader.Get
(new IntWritable(size * 2)));
}
catch (Exception)
{
Fail("testSetFileWithConstruction error !!!");
}
}