wrapper.html() formatting

[tbuteler]

I've got a bunch of tests that do something like this:

it('matches snapshot', () => {
    const wrapper = shallowMount(ExampleComponent)
    expect(wrapper.html()).toMatchSnapshot()
})

I've been trying out v2 and the snapshots all fail now because they were generated using v1, so my snapshotted HTML is all pretty-printed, whereas the wrapper.html() calls with v2 are not.

I was wondering if this was a regression, or if v2 is moving away from pretty-printing HTML (i.e. I should update my snapshots).

[lmiller1990]

Your snapshots will likely have some differences, but this seems like a regression. We should match v1 as closely as possible.

Would you like to make a PR fixing this? I'd recommend just copy-pasting in this file and using that in html by default.