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Andre Carstens
Andre Carstens

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How to Moq ILogger for .net core unit test

Using Moq, you can create custom implemenation of your service layers. But what about the standard items we inject into classes such as logging or configuration.

To mock an instance of Microsoft.Extensions.Logging so you can pass it to your underlying class, you create an Mock of ILogger and inject it.

var logger = Mock.Of>();
var xXXXProvider = new XXXXProvider(httpClient,logger,null);

Where the XXXXProvider class has _logger injected into it and you cannot just mock it up.

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