public void MapIncrement()
{
EnumDataset <int> ds = new EnumDataset <int>(new int[] { 1, 2, 3 });
IDataset <int> mapds = ds.Map(i => i + 1);
var enumerator = mapds.GetEnumerator();
for (int k = 1; enumerator.MoveNext(); k++)
{
Assert.AreEqual(k + 1, enumerator.Current);
}
Assert.AreEqual(3, mapds.Count());
}
public void MapConcat()
{
TextDataset ds = new TextDataset("foo\nbar");
IDataset <string> mapds = ds.Map(i => i + "a");
var enumerator = mapds.GetEnumerator();
Assert.IsTrue(enumerator.MoveNext());
Assert.AreEqual("fooa", enumerator.Current);
Assert.IsTrue(enumerator.MoveNext());
Assert.AreEqual("bara", enumerator.Current);
Assert.IsFalse(enumerator.MoveNext());
Assert.AreEqual(2, mapds.Count());
}
public void FlatMap()
{
TextFileDataset ds = new TextFileDataset("Files\\Words.txt");
IDataset <string> mapds = ds.FlatMap(i => i.Split(' '));
var enumerator = mapds.GetEnumerator();
Assert.IsTrue(enumerator.MoveNext());
Assert.AreEqual("foo", enumerator.Current);
Assert.IsTrue(enumerator.MoveNext());
Assert.AreEqual("bar", enumerator.Current);
Assert.IsTrue(enumerator.MoveNext());
Assert.AreEqual("zoo", enumerator.Current);
Assert.IsTrue(enumerator.MoveNext());
Assert.AreEqual("war", enumerator.Current);
Assert.IsFalse(enumerator.MoveNext());
Assert.AreEqual(4, mapds.Count());
}