FakeItEasy - faking assignment

Question

I have Some code where I have a fake configuration root. I would like to check that a call is made to set a config value.

var fakeConfigRoot = A.Fake<IConfigurationRoot>();

//Do something that will set config item

//A call to set the config must have happened

It is possible to fake getting a config item using

 A.CallTo(() => fakeConfigRoot["TestConfigItem"]).MustHaveHappened(Repeated.Exactly.Once);

I would like to know if it is possible using FakeItEasy to fake the assignment of a config item and if so how. If it is not possible can anyone think of any workarounds.

score 3 · Accepted Answer · answered Jul 06 '17 at 12:59

3

You want to specify a call to a property setter using A.CallToSet. The examples don't show it, but the syntax works for an indexer as well. Try this:

var fakeConfigRoot = A.Fake<IConfigurationRoot>();

fakeConfigRoot["animal"] = "hippo";

A.CallToSet(() => fakeConfigRoot["animal"]).MustHaveHappened(Repeated.Exactly.Once);

answered Jul 06 '17 at 12:59

Blair Conrad

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Thank you very much exactly what i was looking for. – milo.farrell Jul 06 '17 at 13:53
I'm happy the answer helped. And the feature was fun to implement as well! – Blair Conrad Jul 06 '17 at 19:16
1

So bloody simple it painful, easy to over think this one. Thanks mate. – jolySoft Jan 18 '21 at 16:01

FakeItEasy - faking assignment

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