public void ZipRepeatSecond_1()
{
var a = new[] {1, 2};
var b = new[] {3, 4};
var c = Isotope.Collections.EnumerableUtil.ZipRepeatSecond(a, b).ToList();
Assert.AreEqual(2, c.Count);
Assert.AreEqual(1, c[0].Item1);
Assert.AreEqual(3, c[0].Item2);
Assert.AreEqual(2, c[1].Item1);
Assert.AreEqual(4, c[1].Item2);
}
public void Chunkify_1()
{
var items1 = new[] { 0, 1, 2, 3, 4, 5, 6, 7 };
var chunks1 = EnumerableUtil.Chunkify(items1, 1);
Assert.AreEqual(items1.Length, chunks1.Count);
Assert.AreEqual(items1.Length, chunks1.Select(c => c.Count).Sum());
var items2 = new[] { 0, 1, 2, 3, 4, 5, 6, 7 };
var chunks2 = EnumerableUtil.Chunkify(items2, 3);
Assert.AreEqual(3, chunks2.Count);
Assert.AreEqual(3, chunks2[0].Count);
Assert.AreEqual(3, chunks2[1].Count);
Assert.AreEqual(2, chunks2[2].Count);
var items3 = new[] { 0, 1, 2, 3, 4, 5 };
var chunks3 = EnumerableUtil.Chunkify(items3, 3);
Assert.AreEqual(2, chunks3.Count);
Assert.AreEqual(3, chunks3[0].Count);
Assert.AreEqual(3, chunks3[1].Count);
var items4 = new[] { 0, 1, 2, 3, 4, 5, 6 };
var chunks4 = EnumerableUtil.Chunkify(items4, 3);
Assert.AreEqual(3, chunks4.Count);
Assert.AreEqual(3, chunks4[0].Count);
Assert.AreEqual(3, chunks4[1].Count);
Assert.AreEqual(1, chunks4[2].Count);
}
public void Zip1()
{
var a = new[] {1, 2};
var b = new[] {8, 9};
var c = Isotope.Collections.EnumerableUtil.Zip(a, b, (A, B) => new {A, B}).ToList();
}
public void Histogram_1()
{
var a1 = new string[] { "0", "1", "2", "1" };
var dic1 = EnumerableUtil.Histogram(a1);
Assert.AreEqual(3, dic1.Keys.Count);
Assert.AreEqual(1, dic1["0"]);
Assert.AreEqual(2, dic1["1"]);
Assert.AreEqual(1, dic1["2"]);
var a2 = new [] { 0, 1, 2, 3, 4, 5, 6, 7 };
var dic2 = EnumerableUtil.Histogram(a2, i=>i%3, null);
Assert.AreEqual(3, dic2.Keys.Count);
Assert.AreEqual(3, dic2[0]);
Assert.AreEqual(3, dic2[1]);
Assert.AreEqual(2, dic2[2]);
Assert.AreEqual(a2.Length , dic2.Keys.Select( k=> dic2[k]).Sum());
}
