public void Densify_values_within_each_partition_example_using_linq_should_work()
{
RequireServer.Check().Supports(Feature.DensifyStage);
var collection = CreateCoffeeCollection();
var subject = collection.AsQueryable();
var queryable = subject.Densify(
field: x => x.Altitude,
range: DensifyRange.Numeric(DensifyBounds.Partition, step: 200),
partitionByFields: x => x.Variety);
var stages = Translate(collection, queryable);
AssertStages(stages, "{ $densify : { field : 'Altitude', partitionByFields : ['Variety'], range : { step : 200, bounds : 'partition' } } }");
var results = queryable.ToList().Select(r => new { Variety = r.Variety, Altitude = r.Altitude }).OrderBy(r => r.Variety).ThenBy(r => r.Altitude).ToList();
var expectedResults = new[]
{
new { Variety = "Arabica Typica", Altitude = 600 },
new { Variety = "Arabica Typica", Altitude = 750 },
new { Variety = "Arabica Typica", Altitude = 800 },
new { Variety = "Arabica Typica", Altitude = 950 },
new { Variety = "Gesha", Altitude = 1250 },
new { Variety = "Gesha", Altitude = 1450 },
new { Variety = "Gesha", Altitude = 1650 },
new { Variety = "Gesha", Altitude = 1700 }
};
results.Should().Equal(expectedResults);
}
public void Densify_the_full_range_of_values_example_using_aggregate_should_work(bool usingExpressions)
{
RequireServer.Check().Supports(Feature.DensifyStage);
var collection = CreateCoffeeCollection();
var subject = collection.Aggregate();
IAggregateFluent <CoffeeInfo> aggregate;
if (usingExpressions)
{
aggregate = subject.Densify(
field: x => x.Altitude,
range: DensifyRange.Numeric(DensifyBounds.Full, step: 200),
partitionByFields: x => x.Variety);
}
else
{
aggregate = subject.Densify(
field: "Altitude",
range: DensifyRange.Numeric(DensifyBounds.Full, step: 200),
partitionByFields: "Variety");
}
var stages = Translate(collection, aggregate);
AssertStages(stages, "{ $densify : { field : 'Altitude', partitionByFields : ['Variety'], range : { step : 200, bounds : 'full' } } }");
var results = aggregate.ToList().Select(r => new { Variety = r.Variety, Altitude = r.Altitude }).OrderBy(r => r.Variety).ThenBy(r => r.Altitude).ToList();
var expectedResults = new[]
{
new { Variety = "Arabica Typica", Altitude = 600 },
new { Variety = "Arabica Typica", Altitude = 750 },
new { Variety = "Arabica Typica", Altitude = 800 },
new { Variety = "Arabica Typica", Altitude = 950 },
new { Variety = "Arabica Typica", Altitude = 1000 },
new { Variety = "Arabica Typica", Altitude = 1200 },
new { Variety = "Arabica Typica", Altitude = 1400 },
new { Variety = "Arabica Typica", Altitude = 1600 },
new { Variety = "Gesha", Altitude = 600 },
new { Variety = "Gesha", Altitude = 800 },
new { Variety = "Gesha", Altitude = 1000 },
new { Variety = "Gesha", Altitude = 1200 },
new { Variety = "Gesha", Altitude = 1250 },
new { Variety = "Gesha", Altitude = 1400 },
new { Variety = "Gesha", Altitude = 1600 },
new { Variety = "Gesha", Altitude = 1700 }
};
results.Should().Equal(expectedResults);
}