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akarnokdakarnokd
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+All, +Any, +Count, +ElementAt, +IsEmpty, Fixes
1 parent 4923aa7 commit 2795fdc

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+1025
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lines changed

‎.travis.yml

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@@ -5,4 +5,4 @@ mono: none
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sudo: required
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script:
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- dotnet test ./async-enumerable-dotnet-test/async-enumerable-dotnet-test.csproj
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- dotnet test ./async-enumerable-dotnet-test/async-enumerable-dotnet-test.csproj -v m

‎README.md

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## Intermediate operators
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- `Any` - signals true if any of the source items matched a predicate
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- `All` - signals true if all of the source items matched a predicate
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- `Buffer` - collect some number of items into buffer(s) and emit those buffers
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- `Collect` - collect items into a custom collection and emit the collection at the end
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- `ConcatMap` - concatenate in order the inner async sequences mapped from the main sequence
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- `ConcatMapEager` - run the async sources at once but relay elements in order similar to `ConcatMap`
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- `ConcatWith` - concatenate in order with another async sequence
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- `Count` - count the number of items in the async sequence
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- `Distinct` - makes sure only distinct elements get relayed
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- `DistinctUntilChanged` - relays an element only if it is distinct from the previous item
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- `Debounce` - wait a bit after each item and emit them if no newer item arrived from the source
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- `DefaultIfEmpty` - return a fallback value if the source async sequence turns out to be empty
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- `DoOnNext` - execute an action when an item becomes available
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- `DoOnDispose` - execute an action when the async sequence gets disposed.
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- `ElementAt` - get the element at a specified index or an error/default value
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- `Filter` - prevent items from passing through which don't pass a predicate
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- `First` - signals the first item of the async sequence
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- `FlatMap` - map the source items into `IAsyncEnumerable`s and merge their values into a single async sequence
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- `GroupBy` - groups the source elements into distinct async groups
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- `IgnoreElements` - ignores items and ends when the source async sequence ends
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- `IsEmpty` - signals a single true if the source is empty
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- `Last` - signals the last item of the async sequence
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- `Latest` - runs the source async sequence as fast as it can and samples it with the frequency of the consumer
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- `Map` - transform one source value into some other value

‎async-enumerable-dotnet-test/AllTest.cs

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// Copyright (c) David Karnok & Contributors.
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// Licensed under the Apache 2.0 License.
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// See LICENSE file in the project root for full license information.
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5+
using System;
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using System.Threading.Tasks;
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using Xunit;
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using async_enumerable_dotnet;
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10+
namespace async_enumerable_dotnet_test
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{
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public class AllTest
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{
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[Fact]
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public async void Sync_None()
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{
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await AsyncEnumerable.Range(1, 5)
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.All(v => v > 6)
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.AssertResult(false);
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}
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[Fact]
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public async void Sync_Empty()
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{
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await AsyncEnumerable.Empty<int>()
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.All(v => v > 6)
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.AssertResult(true);
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}
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[Fact]
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public async void Sync_Match()
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{
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await AsyncEnumerable.Range(1, 5)
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.All(v => v > 0)
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.AssertResult(true);
36+
}
37+
38+
[Fact]
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public async void Sync_Error()
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{
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await AsyncEnumerable.Error<int>(new InvalidOperationException())
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.All(v => v > 6)
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.AssertFailure(typeof(InvalidOperationException));
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}
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[Fact]
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public async void Sync_Crash()
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{
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await AsyncEnumerable.Range(1, 5)
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.All((Func<int, bool>)(v => throw new InvalidOperationException()))
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.AssertFailure(typeof(InvalidOperationException));
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}
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[Fact]
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public async void Async_None()
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{
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await AsyncEnumerable.Range(1, 5)
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.All(async v =>
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{
60+
await Task.Delay(100);
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return v > 6;
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})
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.AssertResult(false);
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}
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[Fact]
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public async void Async_Empty()
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{
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await AsyncEnumerable.Empty<int>()
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.All(async v =>
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{
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await Task.Delay(100);
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return v > 6;
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})
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.AssertResult(true);
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}
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[Fact]
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public async void Async_Match()
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{
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await AsyncEnumerable.Range(1, 5)
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.All(async v =>
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{
84+
await Task.Delay(100);
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return v > 0;
86+
})
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.AssertResult(true);
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}
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[Fact]
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public async void Async_Error()
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{
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await AsyncEnumerable.Error<int>(new InvalidOperationException())
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.All(async v =>
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{
96+
await Task.Delay(100);
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return v > 6;
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})
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.AssertFailure(typeof(InvalidOperationException));
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}
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[Fact]
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public async void Async_Crash()
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{
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await AsyncEnumerable.Range(1, 5)
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.All(async v =>
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{
108+
await Task.Delay(100);
109+
throw new InvalidOperationException();
110+
})
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.AssertFailure(typeof(InvalidOperationException));
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}
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}
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}

‎async-enumerable-dotnet-test/AnyTest.cs

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// Copyright (c) David Karnok & Contributors.
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// Licensed under the Apache 2.0 License.
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// See LICENSE file in the project root for full license information.
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5+
using System;
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using System.Threading.Tasks;
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using Xunit;
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using async_enumerable_dotnet;
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namespace async_enumerable_dotnet_test
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{
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public class AnyTest
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{
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[Fact]
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public async void Sync_None()
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{
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await AsyncEnumerable.Range(1, 5)
18+
.Any(v => v > 6)
19+
.AssertResult(false);
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}
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[Fact]
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public async void Sync_Empty()
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{
25+
await AsyncEnumerable.Empty<int>()
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.Any(v => v > 6)
27+
.AssertResult(false);
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}
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[Fact]
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public async void Sync_Match()
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{
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await AsyncEnumerable.Range(1, 5)
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.Any(v => v > 4)
35+
.AssertResult(true);
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}
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[Fact]
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public async void Sync_Error()
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{
41+
await AsyncEnumerable.Error<int>(new InvalidOperationException())
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.Any(v => v > 6)
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.AssertFailure(typeof(InvalidOperationException));
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}
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[Fact]
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public async void Sync_Crash()
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{
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await AsyncEnumerable.Range(1, 5)
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.Any((Func<int, bool>)(v => throw new InvalidOperationException()))
51+
.AssertFailure(typeof(InvalidOperationException));
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}
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[Fact]
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public async void Async_None()
56+
{
57+
await AsyncEnumerable.Range(1, 5)
58+
.Any(async v =>
59+
{
60+
await Task.Delay(100);
61+
return v > 6;
62+
})
63+
.AssertResult(false);
64+
}
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66+
[Fact]
67+
public async void Async_Empty()
68+
{
69+
await AsyncEnumerable.Empty<int>()
70+
.Any(async v =>
71+
{
72+
await Task.Delay(100);
73+
return v > 6;
74+
})
75+
.AssertResult(false);
76+
}
77+
78+
[Fact]
79+
public async void Async_Match()
80+
{
81+
await AsyncEnumerable.Range(1, 5)
82+
.Any(async v =>
83+
{
84+
await Task.Delay(100);
85+
return v > 4;
86+
})
87+
.AssertResult(true);
88+
}
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90+
[Fact]
91+
public async void Async_Error()
92+
{
93+
await AsyncEnumerable.Error<int>(new InvalidOperationException())
94+
.Any(async v =>
95+
{
96+
await Task.Delay(100);
97+
return v > 6;
98+
})
99+
.AssertFailure(typeof(InvalidOperationException));
100+
}
101+
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[Fact]
103+
public async void Async_Crash()
104+
{
105+
await AsyncEnumerable.Range(1, 5)
106+
.Any(async v =>
107+
{
108+
await Task.Delay(100);
109+
throw new InvalidOperationException();
110+
})
111+
.AssertFailure(typeof(InvalidOperationException));
112+
}
113+
114+
}
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}

‎async-enumerable-dotnet-test/ConcatMapEagerTest.cs

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@@ -88,7 +88,7 @@ await AsyncEnumerable.FromArray(
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[Fact]
8989
public async void Main_Error()
9090
{
91-
await AsyncEnumerable.Range(1, 5).ConcatWith(AsyncEnumerable.Error<int>(new InvalidOperationException()))
91+
await AsyncEnumerable.Range(1, 5).WithError(new InvalidOperationException())
9292
.ConcatMapEager(v => AsyncEnumerable.Range(v * 10, 5))
9393
.AssertFailure(typeof(InvalidOperationException),
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10, 11, 12, 13, 14,
@@ -107,7 +107,7 @@ await AsyncEnumerable.Range(1, 5)
107107
var res = AsyncEnumerable.Range(v * 10, 5);
108108
if (v == 3)
109109
{
110-
res = res.ConcatWith(AsyncEnumerable.Error<int>(new InvalidOperationException()));
110+
res = res.WithError(new InvalidOperationException());
111111
}
112112
return res;
113113
})

‎async-enumerable-dotnet-test/CountTest.cs

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// Copyright (c) David Karnok & Contributors.
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// Licensed under the Apache 2.0 License.
3+
// See LICENSE file in the project root for full license information.
4+
5+
using System;
6+
using Xunit;
7+
using async_enumerable_dotnet;
8+
9+
namespace async_enumerable_dotnet_test
10+
{
11+
public class CountTest
12+
{
13+
[Fact]
14+
public async void Empty()
15+
{
16+
await AsyncEnumerable.Empty<int>()
17+
.Count()
18+
.AssertResult(0L);
19+
}
20+
21+
[Fact]
22+
public async void Just()
23+
{
24+
await AsyncEnumerable.Just(1)
25+
.Count()
26+
.AssertResult(1L);
27+
}
28+
29+
[Fact]
30+
public async void Range()
31+
{
32+
await AsyncEnumerable.Range(1, 100)
33+
.Count()
34+
.AssertResult(100L);
35+
}
36+
37+
38+
[Fact]
39+
public async void Error()
40+
{
41+
await AsyncEnumerable.Range(1, 100).WithError(new InvalidOperationException())
42+
.Count()
43+
.AssertFailure(typeof(InvalidOperationException));
44+
}
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46+
}
47+
}

‎async-enumerable-dotnet-test/DoOnNextTest.cs

Lines changed: 4 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -17,7 +17,7 @@ public async void Sync_Normal()
1717
var list = new List<int>();
1818
await AsyncEnumerable.Range(1, 5)
1919
.DoOnNext(v => list.Add(v))
20-
.ForEach();
20+
.AssertResult(1, 2, 3, 4, 5);
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2222
Assert.Equal(new[] { 1, 2, 3, 4, 5 }, list);
2323
}
@@ -27,11 +27,12 @@ public async void Async_Normal()
2727
{
2828
var list = new List<int>();
2929
await AsyncEnumerable.Range(1, 5)
30-
.DoOnNext(async v => {
30+
.DoOnNext(async v =>
31+
{
3132
await Task.Delay(100);
3233
list.Add(v);
3334
})
34-
.ForEach();
35+
.AssertResult(1, 2, 3, 4, 5);
3536

3637
Assert.Equal(new[] { 1, 2, 3, 4, 5 }, list);
3738
}

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