How to unit test with verifyWarning?

Hello, I am unit testing the following function:

function [adjdate] = AdjStartDate(startDate) if ~strcmp(startDate,datestr(datetime('01-Feb-2000','InputFormat','dd-MMM-yyyy'),'yyyy-mm-dd')) adjdate=datestr(datetime('01-Feb-2000','InputFormat','dd-MMM-yyyy'),'yyyy-mm-dd'); warning('Start date has been modified.') else adjdate=startDate; end

Specifically, I want to unit test if the function gives the warning 'Start date has been modified." if the date is changed. I tried the following code:

% test if warning is shown, if input date changes function testWarning(testCase) actSolution=AdjStartDate('2000-01-01'); verifiableWaning(testCase,actSolution) end

Unfortunately, my unit tests show an error. There is something written about the warning ID, but I did not specified any warning ID in the function AdjStartDate.m Would you give me some assistance?

[M]

Unfortunately, my unit tests show an error.

Can you post the entire error message ?

[BdS]

>> results=runtests('getBbgFieldDataTest') Running getBbgFieldDataTest Warning: Start date has been modified. > In AdjStartDate (line 14) In getBbgFieldDataTest>testDateValue (line 12) ..Warning: Start date has been modified. > In AdjStartDate (line 14) In getBbgFieldDataTest>testWarning (line 26)

================================================================================ Error occurred in getBbgFieldDataTest/testWarning and it did not run to completion.

    ---------
    Error ID:
    ---------
    'MATLAB:UndefinedFunction'

    --------------
    Error Details:
    --------------
    Undefined function 'verifiableWarning' for input arguments of type 'matlab.unittest.FunctionTestCase'.

    Error in getBbgFieldDataTest>testWarning (line 27)
    verifiableWarning(testCase,actSolution)
================================================================================
.
Done getBbgFieldDataTest
__________

Failure Summary:

     Name                             Failed  Incomplete  Reason(s)
    ================================================================
     getBbgFieldDataTest/testWarning    X         X       Errored.

results =

1×3 TestResult array with properties:

    Name
    Passed
    Failed
    Incomplete
    Duration
    Details

Totals: 2 Passed, 1 Failed (rerun), 1 Incomplete. 0.016652 seconds testing time.

[BdS]

I changed the function testWarning.m Unfortunately the test is still negative.

% test if warning is shown, if input date changes function testWarning(testCase) actSolution=AdjStartDate('2000-01-01'); verifyWarning(testCase,actSolution,[]) end

Output:

>> results=runtests('getBbgFieldDataTest') Running getBbgFieldDataTest Warning: Start date has been modified. > In AdjStartDate (line 14) In getBbgFieldDataTest>testDateValue (line 12) ..Warning: Start date has been modified. > In AdjStartDate (line 14) In getBbgFieldDataTest>testWarning (line 26)

================================================================================ Error occurred in getBbgFieldDataTest/testWarning and it did not run to completion.

    ---------
    Error ID:
    ---------
    'MATLAB:invalidType'

    --------------
    Error Details:
    --------------
    Error using matlab.unittest.internal.mustBeTextScalar (line 11)
    Expected warningID to be one of these types:

    char, string

    Instead its type was double.

    Error in matlab.unittest.internal.qualifications.QualificationDelegate/qualifyWarning (line 192)
                mustBeTextScalar(warningID,'warningID');

    Error in matlab.unittest.qualifications.Verifiable/verifyWarning (line 754)
                [varargout{1:nargout}] = qualifyWarning(verifiable.VerificationDelegate, ...

    Error in getBbgFieldDataTest>testWarning (line 27)
    verifyWarning(testCase,actSolution,[])
================================================================================
.
Done getBbgFieldDataTest
__________

Failure Summary:

     Name                             Failed  Incomplete  Reason(s)
    ================================================================
     getBbgFieldDataTest/testWarning    X         X       Errored.

results =

1×3 TestResult array with properties:

    Name
    Passed
    Failed
    Incomplete
    Duration
    Details

Totals: 2 Passed, 1 Failed (rerun), 1 Incomplete. 0.018611 seconds testing time.