tests/test-empty.t

tests: use NO_CHECK_EOF for fragments used to test importing via extension

test-extension.t is excluded in test-check-module-imports.t, because
import-checker.py reports that some python code fragments in it does
not import modules in recommended style.

These code fragments are used to test importing modules relatively and
absolutely via extension (e.g. issue4029, issue5208, and so on). Test
specific package hierarchy becomes complicated for this purpose, and
it seems reasonable to avoid checking these code fragments with
import-checker.py.

But on the other hand, other code fragments in test-extension.t should
be checked by import-checker.py.

Therefore, this patch uses NO_CHECK_EOF limit mark only for python
code fragments, which are used to test importing via extension in
test-extension.t. NO_CHECK_EOF limit mark tells import-checker.py that
this code fragment should be ignored, via testparseutil.py.

Create an empty repo:

  $ hg init a
  $ cd a

Try some commands:

  $ hg log
  $ hg grep wah
  [1]
  $ hg manifest
  $ hg verify
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  checked 0 changesets with 0 changes to 0 files

Check the basic files created:

  $ ls .hg
  00changelog.i
  requires
  store

Should be empty:

  $ ls .hg/store

Poke at a clone:

  $ cd ..
  $ hg clone a b
  updating to branch default
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cd b
  $ hg verify
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  checked 0 changesets with 0 changes to 0 files
  $ ls .hg
  00changelog.i
  hgrc
  requires
  store

Should be empty:

  $ ls .hg/store

  $ cd ..