view tests/test-empty-dir.t @ 33934:6cc8f848b4c3

run-tests: make per-line condition support testcase names

7340465bd added multiple test cases support. The latter has a problem -
output lines cannot be made conditional with `#if`:

```
  # COUNTEREXAMPLE: DOES NOT WORK
  #testcases A B
    $ command-foo
    common ouput
  #if A
    A's ouput
  #else
    B's ouput
  #endif
    common ouput
```

That's not trivial to fix (even if it works in test, `run-tests.py -i` may
be suboptimal because diff algorithm does not know how to skip the `#if`
lines, even if it does, it may have trouble figuring out whether a changed
line belongs to inside a `#if` block or outside).

Matching output lines conditionally is useful. 4eec2f04a added per-line
condition support for hghave. This patch extends that to also support test
case names.

Differential Revision: https://phab.mercurial-scm.org/D466

  $ hg init

  $ echo 123 > a
  $ hg add a
  $ hg commit -m "first" a

  $ mkdir sub
  $ echo 321 > sub/b
  $ hg add sub/b
  $ hg commit -m "second" sub/b

  $ cat sub/b
  321

  $ hg co 0
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved

  $ cat sub/b 2>/dev/null || echo "sub/b not present"
  sub/b not present

  $ test -d sub || echo "sub not present"
  sub not present