view tests/test-diff-issue2761.t @ 41508:b0865b5919c6

py3: account for demand import difference between Python versions

Our lazy importer for Python 3 will validate that modules are
loadable before returning a stub module object. This is different
from Python 2, which will always return a stub module object.

While we could change behavior of the Python 3 demand importer,
that seems like a problem for another day.

This commit teaches test-extension.t about that difference in
behavior.

Differential Revision: https://phab.mercurial-scm.org/D5798

Test issue2761

  $ hg init

  $ touch to-be-deleted
  $ hg add
  adding to-be-deleted
  $ hg ci -m first
  $ echo a > to-be-deleted
  $ hg ci -m second
  $ rm to-be-deleted
  $ hg diff -r 0

Same issue, different code path

  $ hg up -C
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ touch does-not-exist-in-1
  $ hg add
  adding does-not-exist-in-1
  $ hg ci -m third
  $ rm does-not-exist-in-1
  $ hg diff -r 1