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FeatureManagementTest.cs
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2105 lines (1548 loc) · 84.7 KB
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// Copyright (c) Microsoft Corporation.
// Licensed under the MIT license.
//
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.FeatureManagement;
using Microsoft.FeatureManagement.FeatureFilters;
using Microsoft.FeatureManagement.Telemetry;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using Xunit;
namespace Tests.FeatureManagement
{
public class DotnetSchemaFeatureManagementBasicFunctionTest
{
[Fact]
public async Task ReadsConfiguration()
{
IConfiguration config = new ConfigurationBuilder().AddJsonFile("DotnetFeatureManagementSchema.json").Build();
var services = new ServiceCollection();
services
.AddSingleton(config)
.AddFeatureManagement()
.AddFeatureFilter<TestFilter>();
ServiceProvider serviceProvider = services.BuildServiceProvider();
IFeatureManager featureManager = serviceProvider.GetRequiredService<IFeatureManager>();
Assert.True(await featureManager.IsEnabledAsync(Features.OnTestFeature));
Assert.False(await featureManager.IsEnabledAsync(Features.OffTestFeature));
IEnumerable<IFeatureFilterMetadata> featureFilters = serviceProvider.GetRequiredService<IEnumerable<IFeatureFilterMetadata>>();
//
// Sync filter
TestFilter testFeatureFilter = (TestFilter)featureFilters.First(f => f is TestFilter);
bool called = false;
testFeatureFilter.Callback = (evaluationContext) =>
{
called = true;
Assert.Equal("V1", evaluationContext.Parameters["P1"]);
Assert.Equal(Features.ConditionalFeature, evaluationContext.FeatureName);
return Task.FromResult(true);
};
await featureManager.IsEnabledAsync(Features.ConditionalFeature);
Assert.True(called);
bool hasItems = false;
await foreach (string feature in featureManager.GetFeatureNamesAsync())
{
hasItems = true;
break;
}
Assert.True(hasItems);
}
[Fact]
public async Task ReadsTopLevelConfiguration()
{
var stream = new MemoryStream(Encoding.UTF8.GetBytes($"{{\"AllowedHosts\": \"*\", \"FeatureFlags\": {{\"FeatureX\": true}}}}"));
IConfiguration config = new ConfigurationBuilder().AddJsonStream(stream).Build();
var services = new ServiceCollection();
services.AddFeatureManagement(config.GetSection("FeatureFlags"));
ServiceProvider serviceProvider = services.BuildServiceProvider();
IFeatureManager featureManager = serviceProvider.GetRequiredService<IFeatureManager>();
//Assert.True(await featureManager.IsEnabledAsync("FeatureX"));
string json = @"
{
""FeatureFlags"": {
""FeatureX"": true,
""feature_management"": {
""feature_flags"": [
{
""id"": ""FeatureY"",
""enabled"": true
}
]
}
}
}";
stream = new MemoryStream(Encoding.UTF8.GetBytes(json));
config = new ConfigurationBuilder().AddJsonStream(stream).Build();
services = new ServiceCollection();
services.AddFeatureManagement(config.GetSection("FeatureFlags"));
serviceProvider = services.BuildServiceProvider();
featureManager = serviceProvider.GetRequiredService<IFeatureManager>();
// If Microsoft schema can be found, it will not fall back to root configuration.
Assert.False(await featureManager.IsEnabledAsync("FeatureX"));
Assert.True(await featureManager.IsEnabledAsync("FeatureY"));
}
}
public class FeatureManagementBasicFunctionTest
{
[Fact]
public async Task ReadsConfiguration()
{
IConfiguration config = new ConfigurationBuilder().AddJsonFile("appsettings.json").Build();
var services = new ServiceCollection();
services
.AddSingleton(config)
.AddFeatureManagement()
.AddFeatureFilter<TestFilter>();
ServiceProvider serviceProvider = services.BuildServiceProvider();
IFeatureManager featureManager = serviceProvider.GetRequiredService<IFeatureManager>();
Assert.True(await featureManager.IsEnabledAsync(Features.OnTestFeature));
Assert.False(await featureManager.IsEnabledAsync(Features.OffTestFeature));
IEnumerable<IFeatureFilterMetadata> featureFilters = serviceProvider.GetRequiredService<IEnumerable<IFeatureFilterMetadata>>();
//
// Sync filter
TestFilter testFeatureFilter = (TestFilter)featureFilters.First(f => f is TestFilter);
bool called = false;
testFeatureFilter.Callback = (evaluationContext) =>
{
called = true;
Assert.Equal("V1", evaluationContext.Parameters["P1"]);
Assert.Equal(Features.ConditionalFeature, evaluationContext.FeatureName);
return Task.FromResult(true);
};
await featureManager.IsEnabledAsync(Features.ConditionalFeature);
Assert.True(called);
bool hasItems = false;
await foreach (string feature in featureManager.GetFeatureNamesAsync())
{
hasItems = true;
break;
}
Assert.True(hasItems);
Assert.False(await featureManager.IsEnabledAsync("NonExistentFeature"));
}
[Fact]
public async Task ReadsOnlyFeatureManagementSection()
{
var stream = new MemoryStream(Encoding.UTF8.GetBytes("{\"AllowedHosts\": \"*\"}"));
IConfiguration config = new ConfigurationBuilder().AddJsonStream(stream).Build();
var services = new ServiceCollection();
services
.AddSingleton(config)
.AddFeatureManagement();
ServiceProvider serviceProvider = services.BuildServiceProvider();
IFeatureManager featureManager = serviceProvider.GetRequiredService<IFeatureManager>();
await foreach (string featureName in featureManager.GetFeatureNamesAsync())
{
//
// Fail, as no features should be found
Assert.True(false);
}
}
[Fact]
public async Task RespectsAllFeatureManagementSchemas()
{
string json = @"
{
""AllowedHosts"": ""*"",
""FeatureManagement"": {
""FeatureX"": true,
""FeatureY"": true
},
""feature_management"": {
""feature_flags"": [
{
""id"": ""FeatureZ"",
""enabled"": true
},
{
""id"": ""FeatureY"",
""enabled"": false
}
]
}
}";
var stream = new MemoryStream(Encoding.UTF8.GetBytes(json));
IConfiguration config = new ConfigurationBuilder().AddJsonStream(stream).Build();
var services = new ServiceCollection();
services.AddSingleton(config)
.AddFeatureManagement();
ServiceProvider serviceProvider = services.BuildServiceProvider();
IFeatureManager featureManager = serviceProvider.GetRequiredService<IFeatureManager>();
Assert.True(await featureManager.IsEnabledAsync("FeatureX"));
// feature flag written in Microsoft schema has higher priority
Assert.False(await featureManager.IsEnabledAsync("FeatureY"));
Assert.True(await featureManager.IsEnabledAsync("FeatureZ"));
}
[Fact]
public async Task ThrowsForMissingFeatures()
{
IConfiguration config = new ConfigurationBuilder().AddJsonFile("appsettings.json").Build();
var services = new ServiceCollection();
services
.Configure<FeatureManagementOptions>(options =>
{
options.IgnoreMissingFeatures = false;
});
services
.AddSingleton(config)
.AddFeatureManagement();
ServiceProvider serviceProvider = services.BuildServiceProvider();
IFeatureManager featureManager = serviceProvider.GetRequiredService<IFeatureManager>();
FeatureManagementException fme = await Assert.ThrowsAsync<FeatureManagementException>(() =>
featureManager.IsEnabledAsync("NonExistentFeature"));
}
[Fact]
public async Task ThreadSafeSnapshot()
{
IConfiguration config = new ConfigurationBuilder().AddJsonFile("appsettings.json").Build();
var services = new ServiceCollection();
services
.AddSingleton(config)
.AddFeatureManagement()
.AddFeatureFilter<TestFilter>();
ServiceProvider serviceProvider = services.BuildServiceProvider();
IFeatureManager featureManager = serviceProvider.GetRequiredService<IFeatureManagerSnapshot>();
IEnumerable<IFeatureFilterMetadata> featureFilters = serviceProvider.GetRequiredService<IEnumerable<IFeatureFilterMetadata>>();
//
// Sync filter
TestFilter testFeatureFilter = (TestFilter)featureFilters.First(f => f is TestFilter);
bool called = false;
testFeatureFilter.Callback = async (evaluationContext) =>
{
called = true;
await Task.Delay(10);
return new Random().Next(0, 100) > 50;
};
var tasks = new List<Task<bool>>();
for (int i = 0; i < 1000; i++)
{
tasks.Add(featureManager.IsEnabledAsync(Features.ConditionalFeature));
}
Assert.True(called);
await Task.WhenAll(tasks);
bool result = await tasks.First();
foreach (Task<bool> t in tasks)
{
Assert.Equal(result, await t);
}
}
[Fact]
public void AddsScopedFeatureManagement()
{
IConfiguration config = new ConfigurationBuilder().AddJsonFile("appsettings.json").Build();
var services = new ServiceCollection();
services
.AddSingleton(config)
.AddScopedFeatureManagement()
.WithTargeting<OnDemandTargetingContextAccessor>()
.AddFeatureFilter<TestFilter>();
Assert.Contains(services, descriptor => descriptor.ServiceType == typeof(IFeatureDefinitionProvider) && descriptor.Lifetime == ServiceLifetime.Singleton);
Assert.DoesNotContain(services, descriptor => descriptor.ServiceType == typeof(IFeatureDefinitionProvider) && descriptor.Lifetime == ServiceLifetime.Scoped);
Assert.Contains(services, descriptor => descriptor.ServiceType == typeof(IFeatureManager) && descriptor.Lifetime == ServiceLifetime.Scoped);
Assert.DoesNotContain(services, descriptor => descriptor.ServiceType == typeof(IFeatureManager) && descriptor.Lifetime == ServiceLifetime.Singleton);
Assert.Contains(services, descriptor => descriptor.ServiceType == typeof(IFeatureFilterMetadata) && descriptor.Lifetime == ServiceLifetime.Scoped);
Assert.DoesNotContain(services, descriptor => descriptor.ServiceType == typeof(IFeatureFilterMetadata) && descriptor.Lifetime == ServiceLifetime.Singleton);
var ex = Assert.Throws<FeatureManagementException>(
() =>
{
services.AddFeatureManagement();
});
Assert.Equal($"Scoped feature management has been registered.", ex.Message);
services = new ServiceCollection();
services.AddFeatureManagement();
ex = Assert.Throws<FeatureManagementException>(
() =>
{
services.AddScopedFeatureManagement();
});
Assert.Equal($"Singleton feature management has been registered.", ex.Message);
}
[Fact]
public async Task LastFeatureFlagWins()
{
IConfiguration configuration = new ConfigurationBuilder()
.AddJsonFile("appsettings.json")
.Build();
IServiceCollection services = new ServiceCollection();
services
.AddSingleton(configuration)
.AddFeatureManagement();
ServiceProvider serviceProvider = services.BuildServiceProvider();
IFeatureManager featureManager = serviceProvider.GetRequiredService<IFeatureManager>();
Assert.True(await featureManager.IsEnabledAsync(Features.DuplicateFlag));
}
[Fact]
public async Task MergesFeatureFlagsFromDifferentConfigurationSources()
{
/*
* appsettings1.json
* Feature1: true
* Feature2: true
* FeatureA: true
*
* appsettings2.json
* Feature1: true
* Feature2: false
* FeatureB: true
*
* appsettings3.json
* Feature1: false
* Feature2: false
* FeatureC: true
*/
IConfiguration configuration1 = new ConfigurationBuilder()
.AddJsonFile("appsettings1.json")
.AddJsonFile("appsettings2.json")
.Build();
IConfiguration configuration2 = new ConfigurationBuilder()
.AddConfiguration(configuration1) // chained configuration
.AddJsonFile("appsettings3.json")
.Build();
var featureManager1 = new FeatureManager(new ConfigurationFeatureDefinitionProvider(configuration1));
Assert.True(await featureManager1.IsEnabledAsync("FeatureA"));
Assert.True(await featureManager1.IsEnabledAsync("FeatureB"));
Assert.True(await featureManager1.IsEnabledAsync("Feature1"));
Assert.False(await featureManager1.IsEnabledAsync("Feature2")); // appsettings2 should override appsettings1
var featureManager2 = new FeatureManager(new ConfigurationFeatureDefinitionProvider(configuration2));
Assert.True(await featureManager2.IsEnabledAsync("FeatureA"));
Assert.True(await featureManager2.IsEnabledAsync("FeatureB"));
Assert.True(await featureManager2.IsEnabledAsync("FeatureC"));
Assert.False(await featureManager2.IsEnabledAsync("Feature1")); // appsettings3 should override previous settings
Assert.False(await featureManager2.IsEnabledAsync("Feature2")); // appsettings3 should override previous settings
}
}
public class FeatureManagementFeatureFilterGeneralTest
{
[Fact]
public async Task ThrowsExceptionForMissingFeatureFilter()
{
IConfiguration config = new ConfigurationBuilder().AddJsonFile("appsettings.json").Build();
var services = new ServiceCollection();
services
.AddSingleton(config)
.AddFeatureManagement();
ServiceProvider serviceProvider = services.BuildServiceProvider();
IFeatureManager featureManager = serviceProvider.GetRequiredService<IFeatureManager>();
FeatureManagementException e = await Assert.ThrowsAsync<FeatureManagementException>(async () => await featureManager.IsEnabledAsync(Features.ConditionalFeature));
Assert.Equal(FeatureManagementError.MissingFeatureFilter, e.Error);
}
[Fact]
public async Task SwallowsExceptionForMissingFeatureFilter()
{
IConfiguration config = new ConfigurationBuilder().AddJsonFile("appsettings.json").Build();
var services = new ServiceCollection();
services
.Configure<FeatureManagementOptions>(options =>
{
options.IgnoreMissingFeatureFilters = true;
});
services
.AddSingleton(config)
.AddFeatureManagement();
ServiceProvider serviceProvider = services.BuildServiceProvider();
IFeatureManager featureManager = serviceProvider.GetRequiredService<IFeatureManager>();
var isEnabled = await featureManager.IsEnabledAsync(Features.ConditionalFeature);
Assert.False(isEnabled);
}
[Fact]
public async Task UsesContext()
{
IConfiguration config = new ConfigurationBuilder().AddJsonFile("appsettings.json").Build();
var serviceCollection = new ServiceCollection();
serviceCollection.AddSingleton(config)
.AddFeatureManagement()
.AddFeatureFilter<ContextualTestFilter>();
ServiceProvider provider = serviceCollection.BuildServiceProvider();
ContextualTestFilter contextualTestFeatureFilter = (ContextualTestFilter)provider.GetRequiredService<IEnumerable<IFeatureFilterMetadata>>().First(f => f is ContextualTestFilter);
contextualTestFeatureFilter.ContextualCallback = (ctx, accountContext) =>
{
var allowedAccounts = new List<string>();
ctx.Parameters.Bind("AllowedAccounts", allowedAccounts);
return allowedAccounts.Contains(accountContext.AccountId);
};
IFeatureManager featureManager = provider.GetRequiredService<IFeatureManager>();
var context = new AppContext();
context.AccountId = "NotEnabledAccount";
Assert.False(await featureManager.IsEnabledAsync(Features.ContextualFeature, context));
context.AccountId = "abc";
Assert.True(await featureManager.IsEnabledAsync(Features.ContextualFeature, context));
}
[Fact]
public async Task UsesRequirementType()
{
IConfiguration config = new ConfigurationBuilder().AddJsonFile("appsettings.json").Build();
const string filterOneId = "1";
var services = new ServiceCollection();
services
.AddSingleton(config)
.AddFeatureManagement()
.AddFeatureFilter<TestFilter>();
ServiceProvider serviceProvider = services.BuildServiceProvider();
IFeatureManager featureManager = serviceProvider.GetRequiredService<IFeatureManager>();
string anyFilterFeature = Features.AnyFilterFeature;
string allFilterFeature = Features.AllFilterFeature;
IEnumerable<IFeatureFilterMetadata> featureFilters = serviceProvider.GetRequiredService<IEnumerable<IFeatureFilterMetadata>>();
TestFilter testFeatureFilter = (TestFilter)featureFilters.First(f => f is TestFilter);
//
// Set filters to all return true
testFeatureFilter.Callback = _ => Task.FromResult(true);
Assert.True(await featureManager.IsEnabledAsync(anyFilterFeature));
Assert.True(await featureManager.IsEnabledAsync(allFilterFeature));
//
// Set filters to all return false
testFeatureFilter.Callback = ctx => Task.FromResult(false);
Assert.False(await featureManager.IsEnabledAsync(anyFilterFeature));
Assert.False(await featureManager.IsEnabledAsync(allFilterFeature));
//
// Set 1st filter to true and 2nd filter to false
testFeatureFilter.Callback = ctx => Task.FromResult(ctx.Parameters["Id"] == filterOneId);
Assert.True(await featureManager.IsEnabledAsync(anyFilterFeature));
Assert.False(await featureManager.IsEnabledAsync(allFilterFeature));
//
// Set 1st filter to false and 2nd filter to true
testFeatureFilter.Callback = ctx => Task.FromResult(ctx.Parameters["Id"] != filterOneId);
Assert.True(await featureManager.IsEnabledAsync(anyFilterFeature));
Assert.False(await featureManager.IsEnabledAsync(allFilterFeature));
}
[Fact]
public async Task RequirementTypeAllExceptions()
{
IConfiguration config = new ConfigurationBuilder().AddJsonFile("appsettings.json").Build();
var services = new ServiceCollection();
services
.Configure<FeatureManagementOptions>(options =>
{
options.IgnoreMissingFeatureFilters = true;
});
services
.AddSingleton(config)
.AddFeatureManagement();
ServiceProvider serviceProvider = services.BuildServiceProvider();
IFeatureManager featureManager = serviceProvider.GetRequiredService<IFeatureManager>();
string allFilterFeature = Features.AllFilterFeature;
await Assert.ThrowsAsync<FeatureManagementException>(async () =>
{
await featureManager.IsEnabledAsync(allFilterFeature);
});
}
[Fact]
public void LimitsFeatureFilterImplementations()
{
IConfiguration config = new ConfigurationBuilder().AddJsonFile("appsettings.json").Build();
var serviceCollection = new ServiceCollection();
Assert.Throws<ArgumentException>(() =>
{
new ServiceCollection().AddSingleton(config)
.AddFeatureManagement()
.AddFeatureFilter<InvalidFeatureFilter>();
});
Assert.Throws<ArgumentException>(() =>
{
new ServiceCollection().AddSingleton(config)
.AddFeatureManagement()
.AddFeatureFilter<InvalidFeatureFilter2>();
});
}
[Fact]
public async Task AllowsDuplicatedFilterAlias()
{
const string duplicatedFilterName = "DuplicatedFilterName";
string featureName = Features.FeatureUsesFiltersWithDuplicatedAlias;
IConfiguration config = new ConfigurationBuilder().AddJsonFile("appsettings.json").Build();
var services = new ServiceCollection();
services
.AddSingleton(config)
.AddFeatureManagement()
.AddFeatureFilter<DuplicatedAliasFeatureFilter1>()
.AddFeatureFilter<ContextualDuplicatedAliasFeatureFilterWithAccountContext>()
.AddFeatureFilter<ContextualDuplicatedAliasFeatureFilterWithDummyContext1>();
ServiceProvider serviceProvider = services.BuildServiceProvider();
IFeatureManager featureManager = serviceProvider.GetRequiredService<IFeatureManager>();
var appContext = new AppContext();
var dummyContext = new DummyContext();
var targetingContext = new TargetingContext();
Assert.True(await featureManager.IsEnabledAsync(featureName));
Assert.True(await featureManager.IsEnabledAsync(featureName, appContext));
Assert.True(await featureManager.IsEnabledAsync(featureName, dummyContext));
Assert.True(await featureManager.IsEnabledAsync(featureName, targetingContext));
services = new ServiceCollection();
services
.AddSingleton(config)
.AddFeatureManagement()
.AddFeatureFilter<DuplicatedAliasFeatureFilter1>();
serviceProvider = services.BuildServiceProvider();
featureManager = serviceProvider.GetRequiredService<IFeatureManager>();
Assert.True(await featureManager.IsEnabledAsync(featureName, dummyContext));
services = new ServiceCollection();
services
.AddSingleton(config)
.AddFeatureManagement()
.AddFeatureFilter<DuplicatedAliasFeatureFilter1>()
.AddFeatureFilter<DuplicatedAliasFeatureFilter2>();
serviceProvider = services.BuildServiceProvider();
featureManager = serviceProvider.GetRequiredService<IFeatureManager>();
var ex = await Assert.ThrowsAsync<FeatureManagementException>(
async () =>
{
await featureManager.IsEnabledAsync(featureName);
});
Assert.Equal($"Multiple feature filters match the configured filter named '{duplicatedFilterName}'.", ex.Message);
services = new ServiceCollection();
services
.AddSingleton(config)
.AddFeatureManagement()
.AddFeatureFilter<ContextualDuplicatedAliasFeatureFilterWithDummyContext1>()
.AddFeatureFilter<ContextualDuplicatedAliasFeatureFilterWithDummyContext2>();
serviceProvider = services.BuildServiceProvider();
featureManager = serviceProvider.GetRequiredService<IFeatureManager>();
ex = await Assert.ThrowsAsync<FeatureManagementException>(
async () =>
{
await featureManager.IsEnabledAsync(featureName, dummyContext);
});
Assert.Equal($"Multiple contextual feature filters match the configured filter named '{duplicatedFilterName}' and context type '{typeof(DummyContext)}'.", ex.Message);
}
[Fact]
public async Task SkipsContextualFilterEvaluationForUnrecognizedContext()
{
string featureName = Features.FeatureUsesFiltersWithDuplicatedAlias;
IConfiguration config = new ConfigurationBuilder().AddJsonFile("appsettings.json").Build();
var services = new ServiceCollection();
services
.AddSingleton(config)
.AddFeatureManagement()
.AddFeatureFilter<ContextualDuplicatedAliasFeatureFilterWithAccountContext>();
ServiceProvider serviceProvider = services.BuildServiceProvider();
IFeatureManager featureManager = serviceProvider.GetRequiredService<IFeatureManager>();
var dummyContext = new DummyContext();
Assert.True(await featureManager.IsEnabledAsync(featureName));
Assert.True(await featureManager.IsEnabledAsync(featureName, dummyContext));
}
[Fact]
public async Task BindsFeatureFlagSettings()
{
FeatureFilterConfiguration testFilterConfiguration = new FeatureFilterConfiguration
{
Name = "Test",
Parameters = new ConfigurationBuilder().AddInMemoryCollection(new Dictionary<string, string>()
{
{ "P1", "V1" },
}).Build()
};
var services = new ServiceCollection();
var definitionProvider = new InMemoryFeatureDefinitionProvider(
new FeatureDefinition[]
{
new FeatureDefinition
{
Name = Features.ConditionalFeature,
EnabledFor = new List<FeatureFilterConfiguration>()
{
testFilterConfiguration
}
}
});
services.AddSingleton<IFeatureDefinitionProvider>(definitionProvider)
.AddSingleton<IConfiguration>(new ConfigurationBuilder().Build())
.AddFeatureManagement()
.AddFeatureFilter<TestFilter>();
ServiceProvider serviceProvider = services.BuildServiceProvider();
IFeatureManager featureManager = serviceProvider.GetRequiredService<IFeatureManager>();
IEnumerable<IFeatureFilterMetadata> featureFilters = serviceProvider.GetRequiredService<IEnumerable<IFeatureFilterMetadata>>();
//
// Sync filter
TestFilter testFeatureFilter = (TestFilter)featureFilters.First(f => f is TestFilter);
bool binderCalled = false;
bool called = false;
testFeatureFilter.ParametersBinderCallback = (parameters) =>
{
binderCalled = true;
return parameters;
};
testFeatureFilter.Callback = (evaluationContext) =>
{
called = true;
return Task.FromResult(true);
};
await featureManager.IsEnabledAsync(Features.ConditionalFeature);
Assert.True(binderCalled);
Assert.True(called);
binderCalled = false;
called = false;
await featureManager.IsEnabledAsync(Features.ConditionalFeature);
Assert.False(binderCalled);
Assert.True(called);
//
// Cache break.
testFilterConfiguration.Parameters = new ConfigurationBuilder().AddInMemoryCollection(new Dictionary<string, string>()).Build();
binderCalled = false;
called = false;
await featureManager.IsEnabledAsync(Features.ConditionalFeature);
Assert.True(binderCalled);
Assert.True(called);
}
}
public class FeatureManagementBuiltInFeatureFilterTest
{
[Fact]
public async Task TimeWindow()
{
const string feature1 = "feature1";
const string feature2 = "feature2";
const string feature3 = "feature3";
const string feature4 = "feature4";
const string feature5 = "feature5";
const string feature6 = "feature6";
const string feature7 = "feature7";
Environment.SetEnvironmentVariable($"feature_management:feature_flags:0:id", feature1);
Environment.SetEnvironmentVariable($"feature_management:feature_flags:0:enabled", "true");
Environment.SetEnvironmentVariable($"feature_management:feature_flags:0:conditions:client_filters:0:name", "TimeWindow");
Environment.SetEnvironmentVariable($"feature_management:feature_flags:0:conditions:client_filters:0:parameters:End", DateTimeOffset.UtcNow.AddDays(1).ToString("r"));
Environment.SetEnvironmentVariable($"feature_management:feature_flags:1:id", feature2);
Environment.SetEnvironmentVariable($"feature_management:feature_flags:1:enabled", "true");
Environment.SetEnvironmentVariable($"feature_management:feature_flags:1:conditions:client_filters:0:name", "TimeWindow");
Environment.SetEnvironmentVariable($"feature_management:feature_flags:1:conditions:client_filters:0:parameters:End", DateTimeOffset.UtcNow.ToString("r"));
Environment.SetEnvironmentVariable($"feature_management:feature_flags:2:id", feature3);
Environment.SetEnvironmentVariable($"feature_management:feature_flags:2:enabled", "true");
Environment.SetEnvironmentVariable($"feature_management:feature_flags:2:conditions:client_filters:0:name", "TimeWindow");
Environment.SetEnvironmentVariable($"feature_management:feature_flags:2:conditions:client_filters:0:parameters:Start", DateTimeOffset.UtcNow.ToString("r"));
Environment.SetEnvironmentVariable($"feature_management:feature_flags:3:id", feature4);
Environment.SetEnvironmentVariable($"feature_management:feature_flags:3:enabled", "true");
Environment.SetEnvironmentVariable($"feature_management:feature_flags:3:conditions:client_filters:0:name", "TimeWindow");
Environment.SetEnvironmentVariable($"feature_management:feature_flags:3:conditions:client_filters:0:parameters:Start", DateTimeOffset.UtcNow.AddDays(1).ToString("r"));
Environment.SetEnvironmentVariable("feature_management:feature_flags:4:id", feature5);
Environment.SetEnvironmentVariable("feature_management:feature_flags:4:enabled", "true");
Environment.SetEnvironmentVariable("feature_management:feature_flags:4:conditions:client_filters:0:name", "TimeWindow");
Environment.SetEnvironmentVariable("feature_management:feature_flags:4:conditions:client_filters:0:parameters:Start", DateTimeOffset.UtcNow.AddDays(-2).ToString("r"));
Environment.SetEnvironmentVariable("feature_management:feature_flags:4:conditions:client_filters:0:parameters:End", DateTimeOffset.UtcNow.AddDays(-1).ToString("r"));
Environment.SetEnvironmentVariable("feature_management:feature_flags:4:conditions:client_filters:0:parameters:Recurrence:Pattern:Type", "Daily");
Environment.SetEnvironmentVariable("feature_management:feature_flags:4:conditions:client_filters:0:parameters:Recurrence:Range:Type", "NoEnd");
Environment.SetEnvironmentVariable("feature_management:feature_flags:5:id", feature6);
Environment.SetEnvironmentVariable("feature_management:feature_flags:5:enabled", "true");
Environment.SetEnvironmentVariable("feature_management:feature_flags:5:conditions:client_filters:0:name", "TimeWindow");
Environment.SetEnvironmentVariable("feature_management:feature_flags:5:conditions:client_filters:0:parameters:Start", DateTimeOffset.UtcNow.AddDays(-2).ToString("r"));
Environment.SetEnvironmentVariable("feature_management:feature_flags:5:conditions:client_filters:0:parameters:End", DateTimeOffset.UtcNow.AddDays(-1).ToString("r"));
Environment.SetEnvironmentVariable("feature_management:feature_flags:5:conditions:client_filters:0:parameters:Recurrence:Pattern:Type", "Daily");
Environment.SetEnvironmentVariable("feature_management:feature_flags:5:conditions:client_filters:0:parameters:Recurrence:Pattern:Interval", "3");
Environment.SetEnvironmentVariable("feature_management:feature_flags:5:conditions:client_filters:0:parameters:Recurrence:Range:Type", "NoEnd");
Environment.SetEnvironmentVariable("feature_management:feature_flags:6:id", feature7);
Environment.SetEnvironmentVariable("feature_management:feature_flags:6:enabled", "true");
Environment.SetEnvironmentVariable("feature_management:feature_flags:6:conditions:client_filters:0:name", "TimeWindow");
Environment.SetEnvironmentVariable("feature_management:feature_flags:6:conditions:client_filters:0:parameters:Start", DateTimeOffset.UtcNow.AddDays(-2).ToString("r"));
Environment.SetEnvironmentVariable("feature_management:feature_flags:6:conditions:client_filters:0:parameters:End", DateTimeOffset.UtcNow.AddDays(-1).ToString("r"));
Environment.SetEnvironmentVariable("feature_management:feature_flags:6:conditions:client_filters:0:parameters:Recurrence:Pattern:Type", "Weekly");
Environment.SetEnvironmentVariable("feature_management:feature_flags:6:conditions:client_filters:0:parameters:Recurrence:Pattern:DaysOfWeek:0", "Monday");
Environment.SetEnvironmentVariable("feature_management:feature_flags:6:conditions:client_filters:0:parameters:Recurrence:Pattern:DaysOfWeek:1", "Tuesday");
Environment.SetEnvironmentVariable("feature_management:feature_flags:6:conditions:client_filters:0:parameters:Recurrence:Pattern:DaysOfWeek:2", "Wednesday");
Environment.SetEnvironmentVariable("feature_management:feature_flags:6:conditions:client_filters:0:parameters:Recurrence:Pattern:DaysOfWeek:3", "Thursday");
Environment.SetEnvironmentVariable("feature_management:feature_flags:6:conditions:client_filters:0:parameters:Recurrence:Pattern:DaysOfWeek:4", "Friday");
Environment.SetEnvironmentVariable("feature_management:feature_flags:6:conditions:client_filters:0:parameters:Recurrence:Pattern:DaysOfWeek:5", "Saturday");
Environment.SetEnvironmentVariable("feature_management:feature_flags:6:conditions:client_filters:0:parameters:Recurrence:Pattern:DaysOfWeek:6", "Sunday");
Environment.SetEnvironmentVariable("feature_management:feature_flags:6:conditions:client_filters:0:parameters:Recurrence:Range:Type", "NoEnd");
foreach (DayOfWeek day in Enum.GetValues(typeof(DayOfWeek)))
{
int dayIndex = (int)day;
Environment.SetEnvironmentVariable($"feature_management:feature_flags:6:conditions:client_filters:0:parameters:Recurrence:Pattern:DaysOfWeek:{dayIndex}", day.ToString());
}
IConfiguration config = new ConfigurationBuilder().AddEnvironmentVariables().Build();
var serviceCollection = new ServiceCollection();
serviceCollection.AddSingleton(config)
.AddFeatureManagement();
ServiceProvider provider = serviceCollection.BuildServiceProvider();
IFeatureManager featureManager = provider.GetRequiredService<IFeatureManager>();
Assert.True(await featureManager.IsEnabledAsync(feature1));
Assert.False(await featureManager.IsEnabledAsync(feature2));
Assert.True(await featureManager.IsEnabledAsync(feature3));
Assert.False(await featureManager.IsEnabledAsync(feature4));
Assert.True(await featureManager.IsEnabledAsync(feature5));
Assert.False(await featureManager.IsEnabledAsync(feature6));
Assert.True(await featureManager.IsEnabledAsync(feature7));
}
[Fact]
public async Task Percentage()
{
const string feature = "feature";
Environment.SetEnvironmentVariable($"feature_management:feature_flags:0:id", feature);
Environment.SetEnvironmentVariable($"feature_management:feature_flags:0:enabled", "true");
Environment.SetEnvironmentVariable($"feature_management:feature_flags:0:conditions:client_filters:0:name", "Percentage");
Environment.SetEnvironmentVariable($"feature_management:feature_flags:0:conditions:client_filters:0:parameters:Value", "50");
IConfiguration config = new ConfigurationBuilder().AddEnvironmentVariables().Build();
var serviceCollection = new ServiceCollection();
serviceCollection.AddSingleton(config)
.AddFeatureManagement();
ServiceProvider provider = serviceCollection.BuildServiceProvider();
IFeatureManager featureManager = provider.GetRequiredService<IFeatureManager>();
int enabledCount = 0;
for (int i = 0; i < 10; i++)
{
if (await featureManager.IsEnabledAsync(feature))
{
enabledCount++;
}
}
Assert.True(enabledCount >= 0 && enabledCount <= 10);
}
[Fact]
public async Task Targeting()
{
IConfiguration config = new ConfigurationBuilder().AddJsonFile("appsettings.json").Build();
var services = new ServiceCollection();
services
.Configure<FeatureManagementOptions>(options =>
{
options.IgnoreMissingFeatureFilters = true;
});
services
.AddSingleton(config)
.AddFeatureManagement();
ServiceProvider serviceProvider = services.BuildServiceProvider();
IFeatureManager featureManager = serviceProvider.GetRequiredService<IFeatureManager>();
string targetingTestFeature = Features.TargetingTestFeature;
//
// Targeted by user id
Assert.True(await featureManager.IsEnabledAsync(targetingTestFeature, new TargetingContext
{
UserId = "Jeff"
}));
//
// Not targeted by user id, but targeted by default rollout
Assert.True(await featureManager.IsEnabledAsync(targetingTestFeature, new TargetingContext
{
UserId = "Anne"
}));