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Add Pairwise

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This commit is contained in:
neuecc
2020-05-22 03:19:54 +09:00
parent 4504d84aa8
commit 0e25122ee2
5 changed files with 202 additions and 0 deletions
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33
src/UniTask.NetCoreTests/Linq/Projection.cs
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@@ -396,6 +396,39 @@ namespace NetCoreTests.Linq
await Assert.ThrowsAsync<MyException>(async () => await complete);
}
[Fact]
public async Task PariwiseImmediate()
{
var xs = await UniTaskAsyncEnumerable.Range(1, 5).Pairwise().ToArrayAsync();
xs.Should().BeEquivalentTo((1, 2), (2, 3), (3, 4), (4, 5));
}
[Fact]
public async Task Pariwise()
{
var a = new AsyncReactiveProperty<int>(0);
var list = new List<(int, int)>();
var complete = a.WithoutCurrent().Pairwise().ForEachAsync(x => list.Add(x));
list.Count.Should().Be(0);
a.Value = 10;
list.Count.Should().Be(0);
a.Value = 20;
list.Count.Should().Be(1);
a.Value = 30;
a.Value = 40;
a.Value = 50;
a.Dispose();
await complete;
list.Should().BeEquivalentTo((10, 20), (20, 30), (30, 40), (40, 50));
}
class MyException : Exception
{