[Feature Request]: ability to "label" snapshots

[G-Rath]

🚀 Feature Proposal

In osv-scanner we have this:

func RunAndMatchSnapshots(t *testing.T, tc Case) {
	t.Helper()

	stdout, stderr := RunAndNormalize(t, tc)

	testutility.NewSnapshot().MatchText(t, stdout)
	testutility.NewSnapshot().WithWindowsReplacements(map[string]string{
		"CreateFile": "stat",
	}).MatchText(t, stderr)
}

which results in snapshots like this:

[TestCommand/no_lockfiles_without_recursion_but_with_allow_flag_are_fine - 1]
Scanning dir ./testdata/locks-none
No package sources found
No issues found

---

[TestCommand/no_lockfiles_without_recursion_but_with_allow_flag_are_fine - 2]

---

It would be cool if we could label snapshots, e.g.

	testutility.NewSnapshot().WithLabel("stdout").MatchText(t, stdout)
	testutility.NewSnapshot().WithLabel("stderr").WithWindowsReplacements(map[string]string{
		"CreateFile": "stat",
	}).MatchText(t, stderr)

which would result in:

[TestCommand/no_lockfiles_without_recursion_but_with_allow_flag_are_fine - 1 - stdout]
Scanning dir ./testdata/locks-none
No package sources found
No issues found

---

[TestCommand/no_lockfiles_without_recursion_but_with_allow_flag_are_fine - 2 - stderr]

---

Note, under the hood testutility.NewSnapshot translates to snaps.MatchSnapshot

Motivation

This would make it easier to review snapshots, while still allowing them to be ordered

Example

No response