tests/test-locate.t

check-code: catch Python 'is' comparing number or string literals

The Python 'is' operator compares object identity, so it should
definitely not be applied to string or number literals, which Python
implementations are free to represent with a temporary object.

This should catch the following kinds of bogus expressions (examples):

  x is 'foo'     x is not 'foo'
  x is "bar"     x is not "bar"
  x is 42        x is not 42
  x is -36       x is not -36

As originally proposed by Martin Geisler, amended with catching
negative numbers.

  $ mkdir t
  $ cd t
  $ hg init
  $ echo 0 > a
  $ echo 0 > b
  $ echo 0 > t.h
  $ mkdir t
  $ echo 0 > t/x
  $ echo 0 > t/b
  $ echo 0 > t/e.h
  $ mkdir dir.h
  $ echo 0 > dir.h/foo

  $ hg ci -A -m m
  adding a
  adding b
  adding dir.h/foo
  adding t.h
  adding t/b
  adding t/e.h
  adding t/x

  $ touch nottracked

  $ hg locate a
  a

  $ hg locate NONEXISTENT
  [1]

  $ hg locate
  a
  b
  dir.h/foo
  t.h
  t/b
  t/e.h
  t/x

  $ hg rm a
  $ hg ci -m m

  $ hg locate a
  [1]
  $ hg locate NONEXISTENT
  [1]
  $ hg locate relpath:NONEXISTENT
  [1]
  $ hg locate
  b
  dir.h/foo
  t.h
  t/b
  t/e.h
  t/x
  $ hg locate -r 0 a
  a
  $ hg locate -r 0 NONEXISTENT
  [1]
  $ hg locate -r 0 relpath:NONEXISTENT
  [1]
  $ hg locate -r 0
  a
  b
  dir.h/foo
  t.h
  t/b
  t/e.h
  t/x

-I/-X with relative path should work:

  $ cd t
  $ hg locate
  b
  dir.h/foo
  t.h
  t/b
  t/e.h
  t/x
  $ hg locate -I ../t
  t/b
  t/e.h
  t/x

Issue294: hg remove --after dir fails when dir.* also exists

  $ cd ..
  $ rm -r t

  $ hg locate 't/**'
  t/b
  t/e.h
  t/x

  $ mkdir otherdir
  $ cd otherdir

  $ hg locate b
  ../b
  ../t/b
  $ hg locate '*.h'
  ../t.h
  ../t/e.h
  $ hg locate path:t/x
  ../t/x
  $ hg locate 're:.*\.h$'
  ../t.h
  ../t/e.h
  $ hg locate -r 0 b
  ../b
  ../t/b
  $ hg locate -r 0 '*.h'
  ../t.h
  ../t/e.h
  $ hg locate -r 0 path:t/x
  ../t/x
  $ hg locate -r 0 're:.*\.h$'
  ../t.h
  ../t/e.h