reactive/Ix.NET/Source/System.Linq.Async.Tests/System/Collections/Immutable/ToImmutableDictionary.cs at e49c6b5005cf6d7f73e49508402f688d12fb74f0 · dotnet/reactive · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT License.
// See the LICENSE file in the project root for more information.

using System;
using System.Collections.Generic;
using System.Collections.Immutable;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using Xunit;

namespace Tests
{
    public class ToImmutableDictionary : AsyncEnumerableTests
    {
        [Fact]
        public async Task ToImmutableDictionary_Null()
        {
            await Assert.ThrowsAsync<ArgumentNullException>(() => ImmutableDictionaryAsyncEnumerableExtensions.ToImmutableDictionaryAsync<int, int>(default, x => 0).AsTask());
            await Assert.ThrowsAsync<ArgumentNullException>(() => ImmutableDictionaryAsyncEnumerableExtensions.ToImmutableDictionaryAsync(Return42, default(Func<int, int>)).AsTask());

            await Assert.ThrowsAsync<ArgumentNullException>(() => ImmutableDictionaryAsyncEnumerableExtensions.ToImmutableDictionaryAsync<int, int>(default, x => 0, EqualityComparer<int>.Default).AsTask());
            await Assert.ThrowsAsync<ArgumentNullException>(() => ImmutableDictionaryAsyncEnumerableExtensions.ToImmutableDictionaryAsync(Return42, default, EqualityComparer<int>.Default).AsTask());

            await Assert.ThrowsAsync<ArgumentNullException>(() => ImmutableDictionaryAsyncEnumerableExtensions.ToImmutableDictionaryAsync<int, int, int>(default, x => 0, x => 0).AsTask());
            await Assert.ThrowsAsync<ArgumentNullException>(() => ImmutableDictionaryAsyncEnumerableExtensions.ToImmutableDictionaryAsync<int, int, int>(Return42, default, x => 0).AsTask());
            await Assert.ThrowsAsync<ArgumentNullException>(() => ImmutableDictionaryAsyncEnumerableExtensions.ToImmutableDictionaryAsync<int, int, int>(Return42, x => 0, default).AsTask());

            await Assert.ThrowsAsync<ArgumentNullException>(() => ImmutableDictionaryAsyncEnumerableExtensions.ToImmutableDictionaryAsync<int, int, int>(default, x => 0, x => 0, EqualityComparer<int>.Default).AsTask());
            await Assert.ThrowsAsync<ArgumentNullException>(() => ImmutableDictionaryAsyncEnumerableExtensions.ToImmutableDictionaryAsync(Return42, default, x => 0, EqualityComparer<int>.Default).AsTask());
            await Assert.ThrowsAsync<ArgumentNullException>(() => ImmutableDictionaryAsyncEnumerableExtensions.ToImmutableDictionaryAsync<int, int, int>(Return42, x => 0, default, EqualityComparer<int>.Default).AsTask());

            await Assert.ThrowsAsync<ArgumentNullException>(() => ImmutableDictionaryAsyncEnumerableExtensions.ToImmutableDictionaryAsync<int, int>(default, x => 0, CancellationToken.None).AsTask());
            await Assert.ThrowsAsync<ArgumentNullException>(() => ImmutableDictionaryAsyncEnumerableExtensions.ToImmutableDictionaryAsync(Return42, default(Func<int, int>), CancellationToken.None).AsTask());

            await Assert.ThrowsAsync<ArgumentNullException>(() => ImmutableDictionaryAsyncEnumerableExtensions.ToImmutableDictionaryAsync<int, int>(default, x => 0, EqualityComparer<int>.Default, CancellationToken.None).AsTask());
            await Assert.ThrowsAsync<ArgumentNullException>(() => ImmutableDictionaryAsyncEnumerableExtensions.ToImmutableDictionaryAsync(Return42, default, EqualityComparer<int>.Default, CancellationToken.None).AsTask());

            await Assert.ThrowsAsync<ArgumentNullException>(() => ImmutableDictionaryAsyncEnumerableExtensions.ToImmutableDictionaryAsync<int, int, int>(default, x => 0, x => 0, CancellationToken.None).AsTask());
            await Assert.ThrowsAsync<ArgumentNullException>(() => ImmutableDictionaryAsyncEnumerableExtensions.ToImmutableDictionaryAsync<int, int, int>(Return42, default, x => 0, CancellationToken.None).AsTask());
            await Assert.ThrowsAsync<ArgumentNullException>(() => ImmutableDictionaryAsyncEnumerableExtensions.ToImmutableDictionaryAsync<int, int, int>(Return42, x => 0, default, CancellationToken.None).AsTask());

            await Assert.ThrowsAsync<ArgumentNullException>(() => ImmutableDictionaryAsyncEnumerableExtensions.ToImmutableDictionaryAsync<int, int, int>(default, x => 0, x => 0, EqualityComparer<int>.Default, CancellationToken.None).AsTask());
            await Assert.ThrowsAsync<ArgumentNullException>(() => ImmutableDictionaryAsyncEnumerableExtensions.ToImmutableDictionaryAsync(Return42, default, x => 0, EqualityComparer<int>.Default, CancellationToken.None).AsTask());
            await Assert.ThrowsAsync<ArgumentNullException>(() => ImmutableDictionaryAsyncEnumerableExtensions.ToImmutableDictionaryAsync<int, int, int>(Return42, x => 0, default, EqualityComparer<int>.Default, CancellationToken.None).AsTask());
        }

        [Fact]
        public async Task ToImmutableDictionary1Async()
        {
            var xs = new[] { 1, 4 }.ToAsyncEnumerable();
            var res = await xs.ToImmutableDictionaryAsync(x => x % 2);
            Assert.True(res[0] == 4);
            Assert.True(res[1] == 1);
        }

        [Fact]
        public async Task ToImmutableDictionary2Async()
        {
            var xs = new[] { 1, 4, 2 }.ToAsyncEnumerable();
            await AssertThrowsAsync<ArgumentException>(xs.ToImmutableDictionaryAsync(x => x % 2).AsTask());
        }

        [Fact]
        public async Task ToImmutableDictionary3Async()
        {
            var xs = new[] { 1, 4 }.ToAsyncEnumerable();
            var res = await xs.ToImmutableDictionaryAsync(x => x % 2, x => x + 1);
            Assert.True(res[0] == 5);
            Assert.True(res[1] == 2);
        }

        [Fact]
        public async Task ToImmutableDictionary4Async()
        {
            var xs = new[] { 1, 4, 2 }.ToAsyncEnumerable();
            await AssertThrowsAsync<ArgumentException>(xs.ToImmutableDictionaryAsync(x => x % 2, x => x + 1).AsTask());
        }

        [Fact]
        public async Task ToImmutableDictionary5Async()
        {
            var xs = new[] { 1, 4 }.ToAsyncEnumerable();
            var res = await xs.ToImmutableDictionaryAsync(x => x % 2, new Eq());
            Assert.True(res[0] == 4);
            Assert.True(res[1] == 1);
        }

        [Fact]
        public async Task ToImmutableDictionary6Async()
        {
            var xs = new[] { 1, 4, 2 }.ToAsyncEnumerable();
            await AssertThrowsAsync<ArgumentException>(xs.ToImmutableDictionaryAsync(x => x % 2, new Eq()).AsTask());
        }

        [Fact]
        public async Task ToImmutableDictionary7Async()
        {
            var xs = new[] { 1, 4 }.ToAsyncEnumerable();
            var res = await xs.ToImmutableDictionaryAsync(x => x % 2, x => x, new Eq());
            Assert.True(res[0] == 4);
            Assert.True(res[1] == 1);
        }

        private sealed class Eq : IEqualityComparer<int>
        {
            public bool Equals(int x, int y) => EqualityComparer<int>.Default.Equals(Math.Abs(x), Math.Abs(y));

            public int GetHashCode(int obj) => EqualityComparer<int>.Default.GetHashCode(Math.Abs(obj));
        }
    }
}