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Allow access to child providers in ChainedConfigurationProvider (#67610)
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63 changes: 63 additions & 0 deletions
63
src/libraries/Microsoft.Extensions.Configuration/tests/ChainedConfigurationProviderTests.cs
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// Licensed to the .NET Foundation under one or more agreements. | ||
// The .NET Foundation licenses this file to you under the MIT license. | ||
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using System.Collections.Generic; | ||
using System.Linq; | ||
using Microsoft.Extensions.Configuration.Memory; | ||
using Xunit; | ||
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namespace Microsoft.Extensions.Configuration.Test | ||
{ | ||
public class ChainedConfigurationProvierTests | ||
{ | ||
[Fact] | ||
public void ChainedConfiguration_UsingMemoryConfigurationSource_ChainedCouldExposeProvider() | ||
{ | ||
var chainedConfigurationProvider = new ChainedConfigurationSource | ||
{ | ||
Configuration = new ConfigurationBuilder() | ||
.Add(new MemoryConfigurationSource { | ||
InitialData = new Dictionary<string, string>() { { "a:b", "c" } } | ||
}) | ||
.Build(), | ||
ShouldDisposeConfiguration = false, | ||
} | ||
.Build(new ConfigurationBuilder()) as ChainedConfigurationProvider; | ||
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Assert.True(chainedConfigurationProvider.TryGet("a:b", out string? value)); | ||
Assert.Equal("c", value); | ||
Assert.Equal("c", chainedConfigurationProvider.Configuration["a:b"]); | ||
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var configRoot = chainedConfigurationProvider.Configuration as IConfigurationRoot; | ||
Assert.NotNull(configRoot); | ||
Assert.Equal(1, configRoot.Providers.Count()); | ||
Assert.IsType<MemoryConfigurationProvider>(configRoot.Providers.First()); | ||
} | ||
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[Fact] | ||
public void ChainedConfiguration_ExposesProvider() | ||
{ | ||
var providers = new IConfigurationProvider[] { | ||
new TestConfigurationProvider("foo", "foo-value") | ||
}; | ||
var chainedConfigurationSource = new ChainedConfigurationSource | ||
{ | ||
Configuration = new ConfigurationRoot(providers), | ||
ShouldDisposeConfiguration = false, | ||
}; | ||
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var chainedConfigurationProvider = chainedConfigurationSource | ||
.Build(new ConfigurationBuilder()) as ChainedConfigurationProvider; | ||
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var configRoot = chainedConfigurationProvider.Configuration as IConfigurationRoot; | ||
Assert.NotNull(configRoot); | ||
Assert.Equal(providers, configRoot.Providers); | ||
} | ||
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private class TestConfigurationProvider : ConfigurationProvider | ||
{ | ||
public TestConfigurationProvider(string key, string value) | ||
=> Data.Add(key, value); | ||
} | ||
} | ||
} |
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