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teams.net/core/test/Microsoft.Teams.Core.UnitTests/Hosting

core/test/Microsoft.Teams.Core.UnitTests/Hosting/ResolveFromServicesPreHostTests.cs

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1// Copyright (c) Microsoft Corporation.
2// Licensed under the MIT License.
3
4using Microsoft.Extensions.Configuration;
5using Microsoft.Extensions.DependencyInjection;
6using Microsoft.Extensions.Logging;
7using Microsoft.Extensions.Logging.Abstractions;
8using Microsoft.Teams.Core.Hosting;
9
10namespace Microsoft.Teams.Core.UnitTests.Hosting;
11
12public class ResolveFromServicesPreHostTests
13{
14 // --- ResolveFromServicesPreHost ---
15
16 [Fact]
17 public void ResolveFromServicesPreHost_WithNoRegistration_ReturnsNull()
18 {
19 // Arrange
20 ServiceCollection services = new();
21
22 // Act
23 IConfiguration? result = AddBotApplicationExtensions.ResolveFromServicesPreHost<IConfiguration>(services);
24
25 // Assert
26 Assert.Null(result);
27 }
28
29 [Fact]
30 public void ResolveFromServicesPreHost_WithDirectInstance_ReturnsInstance()
31 {
32 // Arrange
33 ServiceCollection services = new();
34 IConfigurationRoot configuration = new ConfigurationBuilder().Build();
35 services.AddSingleton<IConfiguration>(configuration);
36
37 // Act
38 IConfiguration? result = AddBotApplicationExtensions.ResolveFromServicesPreHost<IConfiguration>(services);
39
40 // Assert
41 Assert.Same(configuration, result);
42 }
43
44 [Fact]
45 public void ResolveFromServicesPreHost_WithFactoryRegistration_ResolvesViaProvider()
46 {
47 // Arrange
48 ServiceCollection services = new();
49 IConfigurationRoot configuration = new ConfigurationBuilder().Build();
50 services.AddSingleton<IConfiguration>(_ => configuration);
51
52 // Act
53 IConfiguration? result = AddBotApplicationExtensions.ResolveFromServicesPreHost<IConfiguration>(services);
54
55 // Assert
56 Assert.NotNull(result);
57 }
58
59 [Fact]
60 public void ResolveFromServicesPreHost_WithMultipleRegistrations_ReturnsLast()
61 {
62 // Arrange — DI last-registration-wins behavior
63 ServiceCollection services = new();
64 IConfigurationRoot first = new ConfigurationBuilder().Build();
65 IConfigurationRoot second = new ConfigurationBuilder().AddInMemoryCollection(new Dictionary<string, string?> { ["key"] = "value" }).Build();
66 services.AddSingleton<IConfiguration>(first);
67 services.AddSingleton<IConfiguration>(second);
68
69 // Act
70 IConfiguration? result = AddBotApplicationExtensions.ResolveFromServicesPreHost<IConfiguration>(services);
71
72 // Assert
73 Assert.Same(second, result);
74 }
75
76 // --- LogFromServices ---
77
78 [Fact]
79 public void LogFromServices_WithNoLoggerFactory_CallsActionWithNullLogger()
80 {
81 // Arrange
82 ServiceCollection services = new();
83 ILogger? captured = null;
84
85 // Act
86 AddBotApplicationExtensions.LogFromServices(services, l => captured = l);
87
88 // Assert
89 Assert.Same(NullLogger.Instance, captured);
90 }
91
92 [Fact]
93 public void LogFromServices_WithAddLogging_CallsActionWithRealLogger()
94 {
95 // Arrange — typical ASP.NET Core registration via factory delegate
96 ServiceCollection services = new();
97 services.AddLogging();
98 ILogger? captured = null;
99
100 // Act
101 AddBotApplicationExtensions.LogFromServices(services, l => captured = l);
102
103 // Assert
104 Assert.NotNull(captured);
105 Assert.IsNotType<NullLogger>(captured);
106 }
107
108 [Fact]
109 public void LogFromServices_WithAddLogging_LoggingDoesNotThrow()
110 {
111 // Arrange — validates that logging within the action does not throw ObjectDisposedException
112 // even though the temporary ServiceProvider is disposed after the action completes
113 ServiceCollection services = new();
114 services.AddLogging();
115
116 // Act / Assert — should not throw
117 AddBotApplicationExtensions.LogFromServices(services, l => l.LogInformation("test message"));
118 }
119
120 [Fact]
121 public void LogFromServices_WithDirectInstance_CallsActionWithRealLogger()
122 {
123 // Arrange
124 ServiceCollection services = new();
125 LoggerFactory factory = new();
126 services.AddSingleton<ILoggerFactory>(factory);
127 ILogger? captured = null;
128
129 // Act
130 AddBotApplicationExtensions.LogFromServices(services, l => captured = l);
131
132 // Assert
133 Assert.NotNull(captured);
134 Assert.IsNotType<NullLogger>(captured);
135 }
136
137 [Fact]
138 public void LogFromServices_WithCustomCategory_UsesCategoryType()
139 {
140 // Arrange
141 ServiceCollection services = new();
142 services.AddLogging();
143 ILogger? captured = null;
144
145 // Act
146 AddBotApplicationExtensions.LogFromServices(services, l => captured = l, typeof(ResolveFromServicesPreHostTests));
147
148 // Assert
149 Assert.NotNull(captured);
150 Assert.IsNotType<NullLogger>(captured);
151 }
152}
153