IFeatureManager Unit Testing-CodePudding

I have a Feature Flag in the Azure portal, used from some controllers in a .NET Core Web App.

At runtime, it works correctly switching on and off the FF on the real portal.

I should write 2 Unit tests, simulating when the Feature Flag is On and when Off.

For the Off, I can write

var featMan = new Mock<IFeatureManager>().Object;

And it works, the problem is to simulate when On.

I found this page, https://github.com/microsoft/FeatureManagement-Dotnet/issues/19#issue-517953297 , but in the downloadable code there is no StubFeatureManagerWithFeatureAOn definition.

CodePudding user response：

You just need to configure your Mock to return specific value in specific cases. For example to emulate that test-feature is On you'd write something like this

[Test]
public async Task TestFeatureManager()
{
    var featureManageMock = new Mock<IFeatureManager>();
    featureManageMock
        .Setup(m => m.IsEnabledAsync("test-feature"))
        .Returns(Task.FromResult(true));

    var featureManager = featureManageMock.Object;

    Assert.IsTrue(await featureManager.IsEnabledAsync("test-feature"));
}