Show complete error table using verifyEqual (from Unit Testing)

Question

Tim 2015-8-10

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https://ww2.mathworks.cn/matlabcentral/answers/233127-show-complete-error-table-using-verifyequal-from-unit-testing

评论： Tim 2015-8-11

Is there a way to get the failure table to display all the failures? I couldn't find any flags in the documentation to control that.

For example:

testCase = matlab.unittest.TestCase.forInteractiveUse; % Creates an interactive test object

verifyEqual(testCase,5,5) % Passes the test

verifyEqual(testCase,randn(50,1),randn(50,1)) % Fails the test, shows the complete error table

verifyEqual(testCase,randn(500,1),randn(500,1)) % Fails the tests, shows the first 50 of 500 failures.

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Answer 1

Andy Campbell 2015-8-11

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编辑：Andy Campbell 2015-8-11

在 MATLAB Online 中打开

There is currently no way to show all the indices in the failure table when the array has more than 50 failing indices.

I am interested in hearing about when you want them. The output is trimmed because more than 50 failing indices (yes I know 50 is arbitrary) can be a burden to debug and printing a plethora of output is often not helpful.

Do you see yourself looking at all of them? What happens if you have a million element array and all indices failed by the same value e.g.

verifyEqual(ones(1,1e6), ones(1,1e6)+1)

Can you provide some details on the scenario you face where you would like all of this output?

Thanks, Andy

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Tim 2015-8-11

I'm working with a vector with around 500 elements, comparing a ground truth version to an experimental version. I set the relative tolerance quite low so I can see all of the issues, and was happy to see that the error rate was fairly low (~1e-5) in the failure table. However, I was only seeing the first 50 elements, and larger errors were hiding in the rest of the vector, which I was didn't detect due to the length of the failure table. I understand that in some situations it's easier to show a shorter failure table, but it would be helpful to have a user accessible parameter to control the length if needed.

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