public void ShortestNameExtensionMethodTest()
{
var tree = BinairytreeTestHelper.CreateTreeWithNames();
var result = tree.GroupBy(a => a.Count())
.OrderBy(name => name.Key)
.First()
.Where(name => !name.Contains("a"))
.ToList();
Assert.AreEqual("Pim", result[0]);
Assert.AreEqual("Rob", result[1]);
}
public void TestJWithExtensionMethod()
{
var tree = BinairytreeTestHelper.CreateTreeWithNames();
var result = tree.Where(name => name.StartsWith("J"))
.Select(name => name.Count())
.OrderByDescending(name => name)
.ToList();
Assert.AreEqual(8, result[0]);
Assert.AreEqual(6, result[1]);
Assert.AreEqual(5, result[2]);
Assert.AreEqual(5, result[3]);
Assert.AreEqual(3, result[4]);
}
public void ShortestNameComprehensiveMethodTest()
{
var tree = BinairytreeTestHelper.CreateTreeWithNames();
var sorted = from name in tree
group name by name.Count() into nameGroups
orderby nameGroups.Key
select nameGroups;
var result = sorted.First()
.Where(a => !a.Contains("a"))
.ToList();
Assert.AreEqual("Pim", result[0]);
Assert.AreEqual("Rob", result[1]);
}
public void AmountOfNamesExtensionMethod()
{
var tree = BinairytreeTestHelper.CreateTreeWithNames();
var result = tree.GroupBy(name => name.Count())
.Select(name => name.Count())
.ToList();
Assert.AreEqual(4, result[0]);
Assert.AreEqual(4, result[1]);
Assert.AreEqual(1, result[2]);
Assert.AreEqual(6, result[3]);
Assert.AreEqual(5, result[4]);
Assert.AreEqual(3, result[5]);
Assert.AreEqual(1, result[6]);
}
public void AllNamesWithRJustSmallLettersExtensionMethod()
{
var tree = BinairytreeTestHelper.CreateTreeWithNames();
var result = tree.Where(name => name.Contains("r"))
.ToList();
Assert.AreEqual("Gert", result[0]);
Assert.AreEqual("Jeroen", result[1]);
Assert.AreEqual("Joery", result[2]);
Assert.AreEqual("Lars", result[3]);
Assert.AreEqual("Martijn", result[4]);
Assert.AreEqual("Martin", result[5]);
Assert.AreEqual("Robert-Jan", result[6]);
Assert.AreEqual("Rory", result[7]);
Assert.AreEqual("Wouter", result[8]);
}
public void LegeLijstjeTest()
{
var tree = BinairytreeTestHelper.CreateTreeWithNames();
tree.Add("ad");
var sorted = from name in tree
group name by name.Count() into nameGroups
orderby nameGroups.Key
select nameGroups;
var result = sorted.First()
.Where(a => !a.Contains("a"))
.ToList();
Assert.IsTrue(0 == result.Count);
}
public void TestJWithComprehensive()
{
var tree = BinairytreeTestHelper.CreateTreeWithNames();
var sorted = from name in tree
where name.StartsWith("J")
orderby name.Count() descending
select name.Count();
var result = sorted.ToList();
Assert.AreEqual(8, result[0]);
Assert.AreEqual(6, result[1]);
Assert.AreEqual(5, result[2]);
Assert.AreEqual(5, result[3]);
Assert.AreEqual(3, result[4]);
}
public void AllNamesWithRJustSmallLettersComprehensionMethod()
{
var tree = BinairytreeTestHelper.CreateTreeWithNames();
var sorted = from name in tree
where name.Contains("r")
select name;
var result = sorted.ToList();
Assert.AreEqual("Gert", result[0]);
Assert.AreEqual("Jeroen", result[1]);
Assert.AreEqual("Joery", result[2]);
Assert.AreEqual("Lars", result[3]);
Assert.AreEqual("Martijn", result[4]);
Assert.AreEqual("Martin", result[5]);
Assert.AreEqual("Robert-Jan", result[6]);
Assert.AreEqual("Rory", result[7]);
Assert.AreEqual("Wouter", result[8]);
}
public void AmountOfNamesComprehensive()
{
var tree = BinairytreeTestHelper.CreateTreeWithNames();
var sorted = from name in tree
group name by name.Count()
into names
select names.Count();
var result = sorted.ToList();
Assert.AreEqual(4, result[0]);
Assert.AreEqual(4, result[1]);
Assert.AreEqual(1, result[2]);
Assert.AreEqual(6, result[3]);
Assert.AreEqual(5, result[4]);
Assert.AreEqual(3, result[5]);
Assert.AreEqual(1, result[6]);
}
public void AlleVoorlettersVanNamenMetRExtensionMethod()
{
var tree = BinairytreeTestHelper.CreateTreeWithNames();
var result = tree.Where(name => name.Contains("R") || name.Contains("r"))
.Select(a => a.Substring(0, 1))
.ToList();
Assert.AreEqual("G", result[0]);
Assert.AreEqual("J", result[1]);
Assert.AreEqual("J", result[2]);
Assert.AreEqual("L", result[3]);
Assert.AreEqual("M", result[4]);
Assert.AreEqual("M", result[5]);
Assert.AreEqual("R", result[6]);
Assert.AreEqual("R", result[7]);
Assert.AreEqual("R", result[8]);
Assert.AreEqual("R", result[9]);
Assert.AreEqual("W", result[10]);
}
public void AlleVoorlettersVanNamenMetRComprehensionMethod()
{
var tree = BinairytreeTestHelper.CreateTreeWithNames();
var sorted = from name in tree
where name.Contains("r") || name.Contains("R")
select name.Substring(0, 1);
var result = sorted.ToList();
Assert.AreEqual("G", result[0]);
Assert.AreEqual("J", result[1]);
Assert.AreEqual("J", result[2]);
Assert.AreEqual("L", result[3]);
Assert.AreEqual("M", result[4]);
Assert.AreEqual("M", result[5]);
Assert.AreEqual("R", result[6]);
Assert.AreEqual("R", result[7]);
Assert.AreEqual("R", result[8]);
Assert.AreEqual("R", result[9]);
Assert.AreEqual("W", result[10]);
}