link to string diff in test report if assertEquals of string fails

[drummer3333]

if assertEquals or similar fails the output of the test is somthing like:

org.junit.ComparisonFailure: expected:<1[
expected
]> but was:<1[
value
]>

A few of our tests export format a structure as a structured String and test this equal to a predefined String. So any diffence in structure can be seen in the Testresults.
I'm comming from Eclipse and there you get a nice diff view for such Failed Tests which makes it ease to see the failures.

Please add a link in the Test View so expected and value can be open in the standrard VSCode Diff View.

[jdneo]

Hi @drummer3333, do you mean something like the SCM diff view?

[drummer3333]

Yes, like that.

[maroony]

I really miss this feature, too! In the meantime I'm using the extension "Partial Diff" and Copy&Paste the result and than do the diff.

[jdneo]

VS Code now is designing a new set of testing API, and having the capability to show this diff view. See the point 3 in this comment: microsoft/vscode#107467 (comment)

So far, from my understanding, different assertion libs have their own format to show expected-actual message. Then I need to parse them according to the format and filling the related fields.

[jdneo]

Finally it comes in 0.31.0 with the integration of the new VS Code testing API!

[ocallesp]

@jdneo can you point me to the new api (documentation) that shows the diff ? It is not clear for me what is the new api.

[jdneo]

If you are looking for the vscode extension api for testing, you can find it here: https://github.com/microsoft/vscode/blob/d8af24e15daeb1ad5bd0ee4858852e60ea545c66/src/vscode-dts/vscode.d.ts#L18193