public void TakeWhileWithIndex()
{
var ints = new[] { 1, 2, 3, 4, 5 }.TakeWhile((x, i) => i < 3).ToArray();
QUnit.AreEqual(ints.Length, 3);
QUnit.AreEqual(ints[0], 1);
QUnit.AreEqual(ints[1], 2);
QUnit.AreEqual(ints[2], 3);
}
public void ElementAtOrDefault()
{
var items = new[] { 0, 1, 2 };
QUnit.AreEqual(items.ElementAtOrDefault(0), 0);
QUnit.AreEqual(items.ElementAtOrDefault(1), 1);
QUnit.AreEqual(items.ElementAtOrDefault(2), 2);
QUnit.AreEqual(items.ElementAtOrDefault(3), 0);
}
public void SkipWhile()
{
var ints = new[] { 1, 2, 3, 4, 5 }.SkipWhile(x => x < 3).ToArray();
QUnit.AreEqual(ints.Length, 3);
QUnit.AreEqual(ints[0], 3);
QUnit.AreEqual(ints[1], 4);
QUnit.AreEqual(ints[2], 5);
}
public void Take()
{
var ints = new[] { 8, 3, 5, 1 }.Take(3).ToArray();
QUnit.AreEqual(ints.Length, 3);
QUnit.AreEqual(ints[0], 8);
QUnit.AreEqual(ints[1], 3);
QUnit.AreEqual(ints[2], 5);
}
public void SelectWithIndex()
{
var array = new[] { "1", "2", "3" };
var two = array.Select((x, i) => x + "a" + i).ToArray();
QUnit.AreEqual(two[0], "1a0");
QUnit.AreEqual(two[1], "2a1");
QUnit.AreEqual(two[2], "3a2");
}
public void DupsDontChangeCount()
{
var dictionary = new Dictionary <string, int>();
dictionary["one"] = 1;
dictionary["one"] = 2;
QUnit.AreEqual(dictionary["one"], 2);
QUnit.AreEqual(dictionary.Count, 1);
}
public void Set()
{
var dictionary = new Dictionary <string, int>();
dictionary["one"] = 1;
dictionary["two"] = 2;
QUnit.AreEqual(dictionary["one"], 1);
QUnit.AreEqual(dictionary["two"], 2);
}
public void Property()
{
Expression <Func <ClassWithMembers, string> > lambda = x => x.StringProperty;
var memberExpression = (MemberExpression)lambda.Body;
QUnit.AreEqual(memberExpression.Expression, lambda.Parameters[0]);
QUnit.IsTrue(memberExpression.Member is PropertyInfo);
QUnit.AreEqual(memberExpression.Member.Name, "StringProperty");
}
public void DefaultIfEmptyExplicitDefault()
{
var s = new string[0].DefaultIfEmpty("default").Single();
QUnit.AreEqual(s, "default");
var i = new int[0].DefaultIfEmpty(5).Single();
QUnit.AreEqual(i, 5);
}
public void DefaultIfEmpty()
{
var s = new string[0].DefaultIfEmpty().Single();
QUnit.AreEqual(s, null);
var i = new int[0].DefaultIfEmpty().Single();
QUnit.AreEqual(i, 0);
}
public void Reverse()
{
var ints = new[] { 1, 2, 3 };
var reverse = ints.Reverse().ToArray();
QUnit.AreEqual(reverse.Length, 3);
QUnit.AreEqual(reverse[0], 3);
QUnit.AreEqual(reverse[1], 2);
QUnit.AreEqual(reverse[2], 1);
}