|
1 | | -using System.Threading.Tasks; |
2 | | -using FluentAssertions; |
3 | | -using Xunit; |
4 | | - |
5 | | -namespace CSharpFunctionalExtensions.Tests.MaybeTests.Extensions |
6 | | -{ |
7 | | - public class BindTests_Task_Left : MaybeTestBase |
8 | | - { |
9 | | - [Fact] |
10 | | - public async Task Bind_Task_Left_returns_no_value_if_initial_maybe_is_null() |
11 | | - { |
12 | | - Maybe<T> maybe = null; |
13 | | - |
14 | | - var maybe2 = await maybe.AsTask().Bind(ExpectAndReturnMaybe<T>(null, T.Value2)); |
15 | | - |
16 | | - maybe2.HasValue.Should().BeFalse(); |
17 | | - } |
18 | | - |
19 | | - [Fact] |
20 | | - public async Task Bind_Task_Left_returns_no_value_if_selector_returns_null() |
21 | | - { |
22 | | - Maybe<T> maybe = T.Value; |
23 | | - |
24 | | - var maybe2 = await maybe.AsTask().Bind(ExpectAndReturn(T.Value, Maybe<T>.None)); |
25 | | - |
26 | | - maybe2.HasValue.Should().BeFalse(); |
27 | | - } |
28 | | - |
29 | | - [Fact] |
30 | | - public async Task Bind_Task_Left_returns_value_if_selector_returns_value() |
31 | | - { |
32 | | - Maybe<T> maybe = T.Value; |
33 | | - |
34 | | - var maybe2 = await maybe.AsTask().Bind(ExpectAndReturnMaybe<T>(T.Value, T.Value2)); |
35 | | - |
36 | | - maybe2.HasValue.Should().BeTrue(); |
37 | | - maybe2.Value.Should().Be(T.Value2); |
38 | | - } |
39 | | - |
40 | | - [Fact] |
41 | | - public async Task Bind_Task_Left_provides_context_to_selector() |
42 | | - { |
43 | | - Maybe<T> maybe = T.Value; |
44 | | - var context = 5; |
45 | | - |
46 | | - var maybe2 = await maybe.AsTask().Bind( |
47 | | - (value, ctx) => |
48 | | - { |
49 | | - ctx.Should().Be(context); |
50 | | - return Maybe.From(value); |
51 | | - }, |
52 | | - context |
53 | | - ); |
54 | | - |
55 | | - maybe2.HasValue.Should().BeTrue(); |
56 | | - } |
57 | | - |
58 | | - [Fact] |
59 | | - public async Task Bind_Task_Left_with_context_returns_no_value_if_initial_maybe_is_null() |
60 | | - { |
61 | | - Maybe<T> maybe = null; |
62 | | - |
63 | | - var maybe2 = await maybe.AsTask().Bind( |
64 | | - (value, _) => ExpectAndReturnMaybe(null, T.Value)(value), |
65 | | - context: 5 |
66 | | - ); |
67 | | - |
68 | | - maybe2.HasValue.Should().BeFalse(); |
69 | | - } |
70 | | - |
71 | | - [Fact] |
72 | | - public async Task Bind_Task_Left_with_context_returns_no_value_if_selector_returns_null() |
73 | | - { |
74 | | - Maybe<T> maybe = T.Value; |
75 | | - |
76 | | - var maybe2 = await maybe.AsTask().Bind( |
77 | | - (value, _) => ExpectAndReturn(T.Value, Maybe<T>.None)(value), |
78 | | - context: 5 |
79 | | - ); |
80 | | - |
81 | | - maybe2.HasValue.Should().BeFalse(); |
82 | | - } |
83 | | - |
84 | | - [Fact] |
85 | | - public async Task Bind_Task_Left_with_context_returns_value_if_selector_returns_value() |
86 | | - { |
87 | | - Maybe<T> maybe = T.Value; |
88 | | - |
89 | | - var maybe2 = await maybe.AsTask().Bind( |
90 | | - (value, _) => ExpectAndReturnMaybe<T>(T.Value, T.Value)(value), |
91 | | - 5 |
92 | | - ); |
93 | | - |
94 | | - maybe2.HasValue.Should().BeTrue(); |
95 | | - maybe2.Value.Should().Be(T.Value); |
96 | | - } |
97 | | - } |
98 | | -} |
| 1 | +using System.Threading.Tasks; |
| 2 | +using FluentAssertions; |
| 3 | +using Xunit; |
| 4 | + |
| 5 | +namespace CSharpFunctionalExtensions.Tests.MaybeTests.Extensions |
| 6 | +{ |
| 7 | + public class BindTests_Task_Left : MaybeTestBase |
| 8 | + { |
| 9 | + [Fact] |
| 10 | + public async Task Bind_Task_Left_returns_no_value_if_initial_maybe_is_null() |
| 11 | + { |
| 12 | + Maybe<T> maybe = null; |
| 13 | + |
| 14 | + var maybe2 = await maybe.AsTask().Bind(ExpectAndReturnMaybe<T>(null, T.Value2)); |
| 15 | + |
| 16 | + maybe2.HasValue.Should().BeFalse(); |
| 17 | + } |
| 18 | + |
| 19 | + [Fact] |
| 20 | + public async Task Bind_Task_Left_returns_no_value_if_selector_returns_null() |
| 21 | + { |
| 22 | + Maybe<T> maybe = T.Value; |
| 23 | + |
| 24 | + var maybe2 = await maybe.AsTask().Bind(ExpectAndReturn(T.Value, Maybe<T>.None)); |
| 25 | + |
| 26 | + maybe2.HasValue.Should().BeFalse(); |
| 27 | + } |
| 28 | + |
| 29 | + [Fact] |
| 30 | + public async Task Bind_Task_Left_returns_value_if_selector_returns_value() |
| 31 | + { |
| 32 | + Maybe<T> maybe = T.Value; |
| 33 | + |
| 34 | + var maybe2 = await maybe.AsTask().Bind(ExpectAndReturnMaybe<T>(T.Value, T.Value2)); |
| 35 | + |
| 36 | + maybe2.HasValue.Should().BeTrue(); |
| 37 | + maybe2.Value.Should().Be(T.Value2); |
| 38 | + } |
| 39 | + |
| 40 | + [Fact] |
| 41 | + public async Task Bind_Task_Left_provides_context_to_selector() |
| 42 | + { |
| 43 | + Maybe<T> maybe = T.Value; |
| 44 | + var context = 5; |
| 45 | + |
| 46 | + var maybe2 = await maybe.AsTask().Bind( |
| 47 | + (value, ctx) => |
| 48 | + { |
| 49 | + ctx.Should().Be(context); |
| 50 | + return Maybe.From(value); |
| 51 | + }, |
| 52 | + context |
| 53 | + ); |
| 54 | + |
| 55 | + maybe2.HasValue.Should().BeTrue(); |
| 56 | + } |
| 57 | + |
| 58 | + [Fact] |
| 59 | + public async Task Bind_Task_Left_with_context_returns_no_value_if_initial_maybe_is_null() |
| 60 | + { |
| 61 | + Maybe<T> maybe = null; |
| 62 | + |
| 63 | + var maybe2 = await maybe.AsTask().Bind( |
| 64 | + (value, _) => ExpectAndReturnMaybe(null, T.Value)(value), |
| 65 | + context: 5 |
| 66 | + ); |
| 67 | + |
| 68 | + maybe2.HasValue.Should().BeFalse(); |
| 69 | + } |
| 70 | + |
| 71 | + [Fact] |
| 72 | + public async Task Bind_Task_Left_with_context_returns_no_value_if_selector_returns_null() |
| 73 | + { |
| 74 | + Maybe<T> maybe = T.Value; |
| 75 | + |
| 76 | + var maybe2 = await maybe.AsTask().Bind( |
| 77 | + (value, _) => ExpectAndReturn(T.Value, Maybe<T>.None)(value), |
| 78 | + context: 5 |
| 79 | + ); |
| 80 | + |
| 81 | + maybe2.HasValue.Should().BeFalse(); |
| 82 | + } |
| 83 | + |
| 84 | + [Fact] |
| 85 | + public async Task Bind_Task_Left_with_context_returns_value_if_selector_returns_value() |
| 86 | + { |
| 87 | + Maybe<T> maybe = T.Value; |
| 88 | + |
| 89 | + var maybe2 = await maybe.AsTask().Bind( |
| 90 | + (value, _) => ExpectAndReturnMaybe<T>(T.Value, T.Value)(value), |
| 91 | + 5 |
| 92 | + ); |
| 93 | + |
| 94 | + maybe2.HasValue.Should().BeTrue(); |
| 95 | + maybe2.Value.Should().Be(T.Value); |
| 96 | + } |
| 97 | + } |
| 98 | +} |
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