C#•13mo ago

❔ Writing tests for Minimal API that calls KeyVault and Azure

How can i write tests for a web app using minimal Apis.

    internal class UserWebApplication : WebApplicationFactory<Program>
    {
        protected override IHost CreateHost(IHostBuilder builder)
        {
              // How can i just override keyvault here?
             builder.ConfigureHostConfiguration(config =>
            {
                config.AddInMemoryCollection(new Dictionary<string, string>
                {
                    ["KeyVault:Uri"] = "??",
                });
            });


            return base.CreateHost(builder);
        }
    }

    internal class UserWebApplication : WebApplicationFactory<Program>
    {
        protected override IHost CreateHost(IHostBuilder builder)
        {
              // How can i just override keyvault here?
             builder.ConfigureHostConfiguration(config =>
            {
                config.AddInMemoryCollection(new Dictionary<string, string>
                {
                    ["KeyVault:Uri"] = "??",
                });
            });


            return base.CreateHost(builder);
        }
    }

The Docs say i have to use WebApplicationFactory<Program> but i can't create it bescause it tries to call KeyVault and Azure client'd also need to be set etc. Is it possible to just add a mock keyvault into it?

3 Replies

Zendist•13mo ago

Check out this article, that should help you get started: https://devblogs.microsoft.com/azure-sdk/unit-testing-and-mocking/ You should probably mock the KV client object, such that you never actually call Azure KV from your test code. Remember to also have an integration test which does call KV, to ensure you got the glue code right.

Pavel Krymets

Azure SDK Blog

Unit testing and mocking with Azure SDK .NET

Learn how to reliably unit test your code that is using the Azure SDKs.

bdcp•13mo ago

hmm thanks for the link . The part of keyvault that needs to be called just adds the values of keyvault to the configuration. Not injecting Keyvault itself. No idea how to mock that

Accord•13mo ago

Was this issue resolved? If so, run /close - otherwise I will mark this as stale and this post will be archived until there is new activity.

Gaming

Programming

❔ Writing tests for Minimal API that calls KeyVault and Azure