public static IEnumerable <object[]> DistinctData(int[] counts)
{
foreach (object[] results in Sources.Ranges(counts.Cast <int>().Select(x => x * DuplicateFactor)))
{
yield return(new object[] { results[0], ((int)results[1]) / DuplicateFactor });
}
}
// For each source, run with each buffering option.
/// <summary>
/// Get a set of ranges, and running for each count in `counts`, with each possible ParallelMergeOption
/// </summary>
/// <param name="counts">The sizes of ranges to return.</param>
/// <returns>Entries for test data.
/// The first element is the Labeled{ParallelQuery{int}} range,
/// the second element is the count, and the third is the ParallelMergeOption to use.</returns>
public static IEnumerable <object[]> MergeData(int[] counts)
{
foreach (object[] results in Sources.Ranges(counts.DefaultIfEmpty(Sources.OuterLoopCount), x => Options))
{
yield return(results);
}
}
public static IEnumerable <object[]> SkipData(int[] counts)
{
foreach (object[] results in Sources.Ranges(counts.DefaultIfEmpty(Sources.OuterLoopCount / 4), SkipPosition))
{
yield return(results);
}
}
/// <summary>
/// Get a set of ranges, running for each count in `counts`, with 1, 2, and 4 counts for partitions.
/// </summary>
/// <param name="counts">The sizes of ranges to return.</param>
/// <returns>Entries for test data.
/// The first element is the Labeled{ParallelQuery{int}} range,
/// the second element is the count, and the third is the number of partitions or degrees of parallelism to use.</returns>
public static IEnumerable <object[]> PartitioningData(int[] counts)
{
foreach (object[] results in Sources.Ranges(counts.DefaultIfEmpty(Sources.OuterLoopCount), x => new[] { 1, 2, 4 }))
{
yield return(results);
}
}
public static IEnumerable <object[]> DistinctData(int[] counts)
{
foreach (object[] results in Sources.Ranges(counts.Select(x => x * DuplicateFactor).DefaultIfEmpty(Sources.OuterLoopCount)))
{
yield return(new object[] { results[0], ((int)results[1]) / DuplicateFactor });
}
}
// For each source, run with each buffering option.
/// <summary>
/// Get a set of ranges, and running for each count in `counts`, with each possible ParallelMergeOption
/// </summary>
/// <param name="counts">The sizes of ranges to return.</param>
/// <returns>Entries for test data.
/// The first element is the Labeled{ParallelQuery{int}} range,
/// the second element is the count, and the third is the ParallelMergeOption to use.</returns>
public static IEnumerable <object[]> MergeData(int[] counts)
{
foreach (object[] results in Sources.Ranges(counts.Cast <int>(), x => Options))
{
yield return(results);
}
}
/// <summary>
/// Get a set of ranges, running for each count in `counts`, with 1, 2, and 4 counts for partitions.
/// </summary>
/// <param name="counts">The sizes of ranges to return.</param>
/// <returns>Entries for test data.
/// The first element is the Labeled{ParallelQuery{int}} range,
/// the second element is the count, and the third is the number of partitions or degrees of parallelism to use.</returns>
public static IEnumerable <object[]> PartitioningData(int[] counts)
{
foreach (object[] results in Sources.Ranges(counts.Cast <int>(), x => new[] { 1, 2, 4 }))
{
yield return(results);
}
}
public static IEnumerable <object[]> JoinData(int[] counts)
{
// When dealing with joins, if there aren't multiple matches the ordering of the second operand is immaterial.
foreach (object[] parms in Sources.Ranges(counts, i => counts))
{
yield return(parms);
}
}
public static IEnumerable <object[]> LastData(int[] counts)
{
Func <int, IEnumerable <int> > positions = x => new[] { 1, x / 2 + 1, Math.Max(1, x - 1) }.Distinct();
foreach (object[] results in Sources.Ranges(counts.Cast <int>(), positions))
{
yield return(results);
}
}
public static IEnumerable <object[]> TakeData(int[] counts)
{
Func <int, IEnumerable <int> > take = x => new[] { -x, -1, 0, 1, x / 2, x, x * 2 }.Distinct();
foreach (object[] results in Sources.Ranges(counts.Cast <int>(), take))
{
yield return(results);
}
}
public static IEnumerable <object[]> GroupJoinData(int[] counts)
{
counts = counts.DefaultIfEmpty(Sources.OuterLoopCount / 64).ToArray();
// When dealing with joins, if there aren't multiple matches the ordering of the second operand is immaterial.
foreach (object[] parms in Sources.Ranges(counts, i => counts))
{
yield return(parms);
}
}
//
// SequenceEqual
//
public static IEnumerable <object[]> SequenceEqualData(int[] counts)
{
foreach (object[] left in Sources.Ranges(counts.Cast <int>()))
{
foreach (object[] right in Sources.Ranges(new[] { (int)left[1] }))
{
yield return(new object[] { left[0], right[0], right[1] });
}
}
}
//
// SequenceEqual
//
public static IEnumerable <object[]> SequenceEqualData(int[] counts)
{
foreach (object[] left in Sources.Ranges(counts.DefaultIfEmpty(Sources.OuterLoopCount / 4)))
{
foreach (object[] right in Sources.Ranges(new[] { (int)left[1] }))
{
yield return(new object[] { left[0], right[0], right[1] });
}
}
}
// Get two ranges, both from 0 to each count, and having an extra parameter denoting the degree or parallelism to use.
public static IEnumerable <object[]> ZipThreadedData(int[] counts, int[] degrees)
{
foreach (object[] left in Sources.Ranges(counts))
{
foreach (object[] right in Sources.Ranges(counts, x => degrees))
{
yield return(new object[] { left[0], left[1], right[0], right[1], right[2] });
}
}
}
public static IEnumerable <object[]> SequenceEqualUnequalSizeData(int[] counts)
{
foreach (object[] left in Sources.Ranges(counts.Cast <int>()))
{
foreach (object[] right in Sources.Ranges(new[] { 1, ((int)left[1] - 1) / 2 + 1, (int)left[1] * 2 + 1 }.Distinct()))
{
yield return(new object[] { left[0], left[1], right[0], right[1] });
}
}
}
//
// TakeWhile
//
public static IEnumerable <object[]> TakeWhileData(int[] counts)
{
foreach (object[] results in Sources.Ranges(counts.Cast <int>()))
{
yield return(new[] { results[0], results[1], new[] { 0 } });
yield return(new[] { results[0], results[1], Enumerable.Range((int)results[1] / 2, ((int)results[1] - 1) / 2 + 1) });
yield return(new[] { results[0], results[1], new[] { (int)results[1] - 1 } });
}
}
public static IEnumerable <object[]> SequenceEqualUnequalData(int[] counts)
{
foreach (object[] left in Sources.Ranges(counts.Cast <int>()))
{
Func <int, IEnumerable <int> > items = x => new[] { 0, x / 8, x / 2, x * 7 / 8, x - 1 }.Distinct();
foreach (object[] right in Sources.Ranges(new[] { (int)left[1] }, items))
{
yield return(new object[] { left[0], right[0], right[1], right[2] });
}
}
}
//
// SkipWhile
//
public static IEnumerable <object[]> SkipWhileData(int[] counts)
{
foreach (object[] results in Sources.Ranges(counts.DefaultIfEmpty(Sources.OuterLoopCount / 4)))
{
yield return(new[] { results[0], results[1], new[] { 0 } });
yield return(new[] { results[0], results[1], Enumerable.Range((int)results[1] / 2, ((int)results[1] - 1) / 2 + 1).ToArray() });
yield return(new[] { results[0], results[1], new[] { (int)results[1] - 1 } });
}
}
public static IEnumerable <object[]> ElementAtOutOfRangeData(int[] counts)
{
foreach (object[] results in UnorderedSources.Ranges(counts.DefaultIfEmpty(Sources.OuterLoopCount), InvalidPositions))
{
yield return(results);
}
foreach (object[] results in Sources.Ranges(counts.DefaultIfEmpty(Sources.OuterLoopCount), InvalidPositions))
{
yield return(results);
}
}
public static IEnumerable <object[]> SingleSpecificData(int[] counts)
{
Func <int, IEnumerable <int> > positions = x => new[] { 0, x / 2, Math.Max(0, x - 1) }.Distinct();
foreach (object[] results in UnorderedSources.Ranges(counts.Cast <int>(), positions))
{
yield return(results);
}
foreach (object[] results in Sources.Ranges(counts.Cast <int>(), positions))
{
yield return(results);
}
}
public static IEnumerable <object[]> SelectManyData(int[] counts)
{
foreach (object[] results in Sources.Ranges(counts.Cast <int>()))
{
foreach (Labeled <Func <int, int, IEnumerable <int> > > expander in Expanders())
{
foreach (int count in new[] { 0, 1, 2, 8 })
{
yield return(new object[] { results[0], results[1], expander, count });
}
}
}
}
public static IEnumerable<object[]> EmptyData()
{
foreach (object[] query in UnorderedSources.Ranges(new[] { 0 }))
{
yield return new object[] { query[0], 1 };
}
foreach (object[] query in Sources.Ranges(new[] { 0 }))
{
yield return new object[] { query[0], 1 };
}
yield return new object[] { Labeled.Label("Empty-Int", ParallelEnumerable.Empty<int>()), 1 };
yield return new object[] { Labeled.Label("Empty-Decimal", ParallelEnumerable.Empty<decimal>()), 1.5M };
yield return new object[] { Labeled.Label("Empty-String", ParallelEnumerable.Empty<string>()), "default" };
}
/// <summary>
/// Run through all sources, ensuring 64k elements for each core (to saturate buffers in producers/consumers).
/// </summary>
/// Data returned is in the format of the underlying sources.
/// <returns>Rows of sourced data to check.</returns>
public static IEnumerable <object[]> ProducerBlocked_Data()
{
// Provide enough elements to ensure all the cores get >64K ints.
int elements = 64 * 1024 * Environment.ProcessorCount;
foreach (object[] data in Sources.Ranges(new[] { elements }))
{
yield return(data);
}
foreach (object[] data in UnorderedSources.Ranges(new[] { elements }))
{
yield return(data);
}
}
public static IEnumerable <object[]> SingleData(int[] elements, int[] counts)
{
foreach (int element in elements)
{
foreach (object[] results in UnorderedSources.Ranges(element, counts.Cast <int>()))
{
yield return(new object[] { results[0], results[1], element });
}
foreach (object[] results in Sources.Ranges(element, counts.Cast <int>()))
{
yield return(new object[] { results[0], results[1], element });
}
}
}
public static IEnumerable <object[]> ExceptData(int[] leftCounts)
{
foreach (int leftCount in leftCounts.DefaultIfEmpty(Sources.OuterLoopCount / 4))
{
foreach (int rightCount in RightCounts(leftCount))
{
int rightStart = 0 - rightCount / 2;
foreach (object[] left in Sources.Ranges(new[] { leftCount }))
{
yield return(left.Concat(new object[] { UnorderedSources.Default(rightStart, rightCount), rightCount, rightStart + rightCount, Math.Max(0, leftCount - (rightCount + 1) / 2) }).ToArray());
}
}
}
}