public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
{
// Write aggregators as the ToString form
IAggregator aggregator = (IAggregator)value;
writer.WriteValue(aggregator.ToString());
}
private void AggregatorBaseBehaviors(IAggregator aggregator, bool requiresColumns = true)
{
// Verify ToString returns the aggregator type, which matches the start of the class name
string name = aggregator.ToString();
Assert.AreEqual(aggregator.GetType().Name.ToLowerInvariant(), (name + "aggregator").ToLowerInvariant());
// Verify Merge throws if the values are null
Verify.Exception <ArgumentNullException>(() => aggregator.Merge(null, null));
// Verify Aggregate throws if the matches or columns are null
Verify.Exception <ArgumentNullException>(() => aggregator.Aggregate(null, null, new IUntypedColumn[1] {
ColumnFactory.Build(new ColumnDetails("ID", "int", null), 100)
}));
if (requiresColumns)
{
ShortSet sample = new ShortSet(100);
sample.Or(new ushort[] { 1, 2, 3 });
Verify.Exception <ArgumentException>(() => aggregator.Aggregate(null, sample, null));
}
}
