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Add test to ensure Batch does not reuse internal array #820

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merged 3 commits into from
Jun 16, 2021
Merged

Add test to ensure Batch does not reuse internal array #820

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2977c3b
add bug: reuse same array; no test fails
leandromoh Jun 13, 2021
60cdd29
add test BatchSequencesAreIndependentInstances
leandromoh Jun 13, 2021
70244ef
Revert "add bug: reuse same array; no test fails"
leandromoh Jun 13, 2021
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16 changes: 16 additions & 0 deletions MoreLinq.Test/BatchTest.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -79,6 +79,22 @@ public void BatchSequenceYieldsListsOfBatches()
reader.ReadEnd();
}

[Test]
public void BatchSequencesAreIndependentInstances()
{
var result = new[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 }.Batch(4);

using var reader = result.Read();
var first = reader.Read();
var second = reader.Read();
var third = reader.Read();
reader.ReadEnd();

first.AssertSequenceEqual(1, 2, 3, 4);
second.AssertSequenceEqual(5, 6, 7, 8);
third.AssertSequenceEqual(9);
}

[Test]
public void BatchIsLazy()
{
Expand Down