Optional format for string diff error messages

[pomber]

Feature request:

When comparing two string with t.is(actual, expected) sometimes, when the test fails, is better to have the two strings side by side instead of showing the diff. It would be nice if this can be configured in some way.

For example:
t.is("<undefined></undefined>", "<div></div>");

Current output :

  Difference:
    "<undefinedv></undefinedv>"

Suggested output (using same output as other types use):

  Actual:

    "<undefined></undefined>"

  Must be strictly equal to:

     "<div></div>"

Or even better:

    Actual: "<undefined></undefined>"
  Expected: "<div></div>"

[novemberborn]

I agree. With #1341 (pending input from others) the output would be:

Difference

- <undefined></undefined>
+ <div></div>

[novemberborn]

@dudu84 we'll be solving this with #1341.

[novemberborn]

#1341 has landed. A new release will be out soon.