public void GroupByWithElementProjection()
{
DataProducer<string> producer = new DataProducer<string>();
var query = producer.GroupBy(word => word[0], word => word + word.Length)
.Select(group => new { group.Key, Words = group.AsFutureEnumerable() })
.AsFutureEnumerable();
producer.ProduceAndEnd("One", "Two", "Three", "Four", "Five", "Six", "Seven", "others");
var results = query.Value.ToList();
Assert.AreEqual(5, results.Count);
Assert.AreEqual('O', results[0].Key);
Assert.IsTrue(results[0].Words.Value.SequenceEqual(new[] { "One3" }));
Assert.AreEqual('T', results[1].Key);
Assert.IsTrue(results[1].Words.Value.SequenceEqual(new[] { "Two3", "Three5" }));
Assert.AreEqual('F', results[2].Key);
Assert.IsTrue(results[2].Words.Value.SequenceEqual(new[] { "Four4", "Five4" }));
Assert.AreEqual('S', results[3].Key);
Assert.IsTrue(results[3].Words.Value.SequenceEqual(new[] { "Six3", "Seven5" }));
Assert.AreEqual('o', results[4].Key);
Assert.IsTrue(results[4].Words.Value.SequenceEqual(new[] { "others6" }));
}
public void GroupByWithComparerAndElementProjection()
{
DataProducer <string> producer = new DataProducer <string>();
var query = producer.GroupBy(word => word[0].ToString(), word => word + word.Length, StringComparer.OrdinalIgnoreCase)
.Select(group => new { group.Key, Words = group.AsFutureEnumerable() })
.AsFutureEnumerable();
producer.ProduceAndEnd("one", "Two", "three", "Four", "Five", "six", "seven", "Others");
var results = query.Value.ToList();
Assert.AreEqual(4, results.Count);
Assert.AreEqual("o", results[0].Key);
Assert.IsTrue(results[0].Words.Value.SequenceEqual(new[] { "one3", "Others6" }));
Assert.AreEqual("T", results[1].Key);
Assert.IsTrue(results[1].Words.Value.SequenceEqual(new[] { "Two3", "three5" }));
Assert.AreEqual("F", results[2].Key);
Assert.IsTrue(results[2].Words.Value.SequenceEqual(new[] { "Four4", "Five4" }));
Assert.AreEqual("s", results[3].Key);
Assert.IsTrue(results[3].Words.Value.SequenceEqual(new[] { "six3", "seven5" }));
}
public void GroupByWithElementProjection()
{
DataProducer <string> producer = new DataProducer <string>();
var query = producer.GroupBy(word => word[0], word => word + word.Length)
.Select(group => new { group.Key, Words = group.AsFutureEnumerable() })
.AsFutureEnumerable();
producer.ProduceAndEnd("One", "Two", "Three", "Four", "Five", "Six", "Seven", "others");
var results = query.Value.ToList();
Assert.AreEqual(5, results.Count);
Assert.AreEqual('O', results[0].Key);
Assert.IsTrue(results[0].Words.Value.SequenceEqual(new[] { "One3" }));
Assert.AreEqual('T', results[1].Key);
Assert.IsTrue(results[1].Words.Value.SequenceEqual(new[] { "Two3", "Three5" }));
Assert.AreEqual('F', results[2].Key);
Assert.IsTrue(results[2].Words.Value.SequenceEqual(new[] { "Four4", "Five4" }));
Assert.AreEqual('S', results[3].Key);
Assert.IsTrue(results[3].Words.Value.SequenceEqual(new[] { "Six3", "Seven5" }));
Assert.AreEqual('o', results[4].Key);
Assert.IsTrue(results[4].Words.Value.SequenceEqual(new[] { "others6" }));
}
public void GroupByWithResultProjectionAndElementProjectionAndComparer()
{
DataProducer <string> producer = new DataProducer <string>();
var query = producer.GroupBy(word => word[0].ToString(),
word => word + word,
(key, words) => new { Key = key, MaxLength = words.Max(word => word.Length) },
StringComparer.OrdinalIgnoreCase)
.AsFutureEnumerable();
producer.ProduceAndEnd("one", "Two", "three", "Four", "Five", "six", "seven", "Others");
var results = query.Value.ToList();
Assert.AreEqual(4, results.Count);
Assert.AreEqual("o", results[0].Key);
Assert.AreEqual(12, results[0].MaxLength.Value);
Assert.AreEqual("T", results[1].Key);
Assert.AreEqual(10, results[1].MaxLength.Value);
Assert.AreEqual("F", results[2].Key);
Assert.AreEqual(8, results[2].MaxLength.Value);
Assert.AreEqual("s", results[3].Key);
Assert.AreEqual(10, results[3].MaxLength.Value);
}
public void GroupByWithElementProjectionAndResultProjection()
{
DataProducer <string> producer = new DataProducer <string>();
var query = producer.GroupBy(word => word[0].ToString(),
word => word + word,
(key, words) => new { Key = key, MaxLength = words.Max(word => word.Length) })
.AsFutureEnumerable();
producer.ProduceAndEnd("One", "Two", "Three", "Four", "Five", "Six", "Seven", "others");
var results = query.Value.ToList();
Assert.AreEqual(5, results.Count);
Assert.AreEqual("O", results[0].Key);
Assert.AreEqual(6, results[0].MaxLength.Value);
Assert.AreEqual("T", results[1].Key);
Assert.AreEqual(10, results[1].MaxLength.Value);
Assert.AreEqual("F", results[2].Key);
Assert.AreEqual(8, results[2].MaxLength.Value);
Assert.AreEqual("S", results[3].Key);
Assert.AreEqual(10, results[3].MaxLength.Value);
Assert.AreEqual("o", results[4].Key);
Assert.AreEqual(12, results[4].MaxLength.Value);
}
public void GroupedOrderedAggregate()
{
DataProducer <string> producer = new DataProducer <string>();
var result = producer.GroupBy(s => s.Length)
.Select(grp => new { grp.Key, Count = grp.Count() })
.OrderBy(item => item.Key).ToList();
producer.ProduceAndEnd("blop", "foo", "bar", "blip", "blap");
// foo, bar
Assert.AreEqual(result[0].Key, 3);
Assert.AreEqual(result[0].Count.Value, 2);
// blop, blip, blap
Assert.AreEqual(result[1].Key, 4);
Assert.AreEqual(result[1].Count.Value, 3);
}
public void GroupedAggregate()
{
DataProducer <string> producer = new DataProducer <string>();
var result = producer.GroupBy(s => s.Length)
.Select(grp => new { grp.Key, Count = grp.Count() }).ToList();
producer.ProduceAndEnd("blop", "foo", "bar", "blip", "blap");
// use List<T>.Find so that we can test 2.0 (without Single)
var final = ToConcreteList(result);
// foo, bar
Assert.AreEqual(final.Find(grp => grp.Key == 3).Count.Value, 2);
// blop, blip, blap
Assert.AreEqual(final.Find(grp => grp.Key == 4).Count.Value, 3);
}
public void GroupByWithComparer()
{
DataProducer<string> producer = new DataProducer<string>();
var query = producer.GroupBy(word => word[0].ToString(), StringComparer.OrdinalIgnoreCase)
.Select(group => new { group.Key, Words = group.AsFutureEnumerable() })
.AsFutureEnumerable();
producer.ProduceAndEnd("one", "Two", "three", "Four", "Five", "six", "seven", "Others");
var results = query.Value.ToList();
Assert.AreEqual(4, results.Count);
Assert.AreEqual("o", results[0].Key);
Assert.IsTrue(results[0].Words.Value.SequenceEqual(new[] { "one", "Others" }));
Assert.AreEqual("T", results[1].Key);
Assert.IsTrue(results[1].Words.Value.SequenceEqual(new[] { "Two", "three" }));
Assert.AreEqual("F", results[2].Key);
Assert.IsTrue(results[2].Words.Value.SequenceEqual(new[] { "Four", "Five" }));
Assert.AreEqual("s", results[3].Key);
Assert.IsTrue(results[3].Words.Value.SequenceEqual(new[] { "six", "seven" }));
}
public void GroupByWithResultProjectionAndElementProjectionAndComparer()
{
DataProducer<string> producer = new DataProducer<string>();
var query = producer.GroupBy(word => word[0].ToString(),
word => word + word,
(key, words) => new { Key = key, MaxLength = words.Max(word => word.Length) },
StringComparer.OrdinalIgnoreCase)
.AsFutureEnumerable();
producer.ProduceAndEnd("one", "Two", "three", "Four", "Five", "six", "seven", "Others");
var results = query.Value.ToList();
Assert.AreEqual(4, results.Count);
Assert.AreEqual("o", results[0].Key);
Assert.AreEqual(12, results[0].MaxLength.Value);
Assert.AreEqual("T", results[1].Key);
Assert.AreEqual(10, results[1].MaxLength.Value);
Assert.AreEqual("F", results[2].Key);
Assert.AreEqual(8, results[2].MaxLength.Value);
Assert.AreEqual("s", results[3].Key);
Assert.AreEqual(10, results[3].MaxLength.Value);
}
public void GroupByWithElementProjectionAndResultProjection()
{
DataProducer<string> producer = new DataProducer<string>();
var query = producer.GroupBy(word => word[0].ToString(),
word => word + word,
(key, words) => new { Key = key, MaxLength = words.Max(word => word.Length) })
.AsFutureEnumerable();
producer.ProduceAndEnd("One", "Two", "Three", "Four", "Five", "Six", "Seven", "others");
var results = query.Value.ToList();
Assert.AreEqual(5, results.Count);
Assert.AreEqual("O", results[0].Key);
Assert.AreEqual(6, results[0].MaxLength.Value);
Assert.AreEqual("T", results[1].Key);
Assert.AreEqual(10, results[1].MaxLength.Value);
Assert.AreEqual("F", results[2].Key);
Assert.AreEqual(8, results[2].MaxLength.Value);
Assert.AreEqual("S", results[3].Key);
Assert.AreEqual(10, results[3].MaxLength.Value);
Assert.AreEqual("o", results[4].Key);
Assert.AreEqual(12, results[4].MaxLength.Value);
}