Moq mock method with out specifying input parameter

Question

I have some code in a test using Moq:

public class Invoice
{
    ...

    public bool IsInFinancialYear(FinancialYearLookup financialYearLookup)
    {
        return InvoiceDate >= financialYearLookup.StartDate && InvoiceDate <= financialYearLookup.EndDate;
    }
    ...
}

So in a unit test I'm trying to mock this method and make it return true

mockInvoice.Setup(x => x.IsInFinancialYear()).Returns(true);

Is there anyway to write this line so I don't have to specify the input to IsInFinancialYear. ie. So that it doesn't in the code what the input parameter is it will return true whatever is passed to it?

score 278 · Accepted Answer · edited Mar 19 '14 at 12:10

278

You can use It.IsAny<T>() to match any value:

mockInvoice.Setup(x => x.IsInFinancialYear(It.IsAny<FinancialYearLookup>())).Returns(true);

See the Matching Arguments section of the quick start.

edited Mar 19 '14 at 12:10

tronda

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answered Oct 19 '11 at 19:40

Jeff Ogata

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I realize this answer is old but what if I have more than one simple parameter? Is it possible to just say "Anything where the types fit for all parameters"? – Brandon Mar 02 '16 at 19:13
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@Brandon Then you have an It.IsAny() for each parameter where type is whatever type that param is. If you wanted you could probably write a helper function that does this for you via reflection. – user441521 Sep 08 '16 at 20:05
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https://7pass.wordpress.com/2014/05/20/moq-setup-and-ignore-all-arguments/ – NDC Jun 30 '17 at 17:44
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Agree with the other comments here: typing this for any non-trivial method is a major pain. – John Hargrove Jan 11 '18 at 22:49
Any one does have any helper that do this ? Or you have to write for each single method a helper / – Meysam Sep 04 '18 at 14:39

score 20 · Answer 2 · answered Oct 19 '11 at 19:40

20

Try using It.IsAny<FinancialYearLookup>() to accept any argument:

mockInvoice.Setup(x => x.IsInFinancialYear(It.IsAny<FinancialYearLookup>())).Returns(true);

answered Oct 19 '11 at 19:40

jeha

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score 14 · Answer 3 · answered Jun 30 '17 at 17:51

14

You can try the following:

https://7pass.wordpress.com/2014/05/20/moq-setup-and-ignore-all-arguments/

Allows:

mock
.SetupIgnoreArgs(x => x.Method(null, null, null)
.Return(value);

answered Jun 30 '17 at 17:51

NDC

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Pull Request to Moq Extensions would be appreciated :-) – Maurice Klimek Apr 24 '18 at 09:43

Moq mock method with out specifying input parameter

3 Answers3