tests/test-status-rev.t

changelog: use headrevsfiltered

2b5940f64750 introduced use of the new filtering headrevs C implementation. It
caught TypeError to detect when to fall back to the implementation that was
compatible with old extensions. That method was however not reliable.

Instead, use the new headrevsfiltered function when passing a filter. It will
reliably fail with AttributeError when an old extension that predates
headrevsfiltered is used.

Tests of 'hg status --rev <rev>' to make sure status between <rev> and '.' get
combined correctly with the dirstate status.

Sets up a history for a number of files where the filename describes the file's
history. The first two letters of the filename describe the first two commits;
the third letter describes the dirstate for the file. For example, a file called
'amr' was added in the first commit, modified in the second and then removed in
the dirstate.

These codes are used for commits:
x: does not exist
a: added
c: clean
m: modified
r: removed

These codes are used for dirstate:
d: in dirstate, but deleted from disk
f: removed from dirstate, but file exists (forgotten)
r: removed from dirstate and disk
q: added, but deleted from disk (q for q-rious?)
u: not in dirstate, but file exists (unknown)

  $ hg init
  $ touch .hgignore
  $ hg add .hgignore
  $ hg commit -m initial

First letter: first commit

  $ echo a >acc
  $ echo a >acd
  $ echo a >acf
  $ echo a >acm
  $ echo a >acr
  $ echo a >amc
  $ echo a >amd
  $ echo a >amf
  $ echo a >amm
  $ echo a >amr
  $ echo a >ara
  $ echo a >arq
  $ echo a >aru
  $ hg commit -Aqm first

Second letter: second commit

  $ echo b >xad
  $ echo b >xaf
  $ echo b >xam
  $ echo b >xar
  $ echo b >amc
  $ echo b >amd
  $ echo b >amf
  $ echo b >amm
  $ echo b >amr
  $ hg rm ara
  $ hg rm arq
  $ hg rm aru
  $ hg commit -Aqm second

Third letter: dirstate

  $ echo c >acm
  $ echo c >amm
  $ echo c >xam
  $ echo c >ara && hg add ara
  $ echo c >arq && hg add arq && rm arq
  $ echo c >aru
  $ hg rm amr
  $ hg rm acr
  $ hg rm xar
  $ rm acd
  $ rm amd
  $ rm xad
  $ hg forget acf
  $ hg forget amf
  $ hg forget xaf
  $ touch xxu

Status compared to one revision back

  $ hg status -A --rev 1 acc
  C acc
BROKEN: file appears twice; should be '!'
  $ hg status -A --rev 1 acd
  ! acd
  C acd
  $ hg status -A --rev 1 acf
  R acf
  $ hg status -A --rev 1 acm
  M acm
  $ hg status -A --rev 1 acr
  R acr
  $ hg status -A --rev 1 amc
  M amc
BROKEN: file appears twice; should be '!'
  $ hg status -A --rev 1 amd
  ! amd
  C amd
  $ hg status -A --rev 1 amf
  R amf
  $ hg status -A --rev 1 amm
  M amm
  $ hg status -A --rev 1 amr
  R amr
  $ hg status -A --rev 1 ara
  M ara
BROKEN: file appears twice; should be '!'
  $ hg status -A --rev 1 arq
  R arq
  ! arq
  $ hg status -A --rev 1 aru
  R aru
  $ hg status -A --rev 1 xad
  ! xad
  $ hg status -A --rev 1 xaf
  $ hg status -A --rev 1 xam
  A xam
  $ hg status -A --rev 1 xar
  $ hg status -A --rev 1 xxu
  ? xxu

Status compared to two revisions back

  $ hg status -A --rev 0 acc
  A acc
  $ hg status -A --rev 0 acd
  ! acd
BROKEN: file exists, so should be listed (as '?')
  $ hg status -A --rev 0 acf
  $ hg status -A --rev 0 acm
  A acm
  $ hg status -A --rev 0 acr
  $ hg status -A --rev 0 amc
  A amc
  $ hg status -A --rev 0 amd
  ! amd
BROKEN: file exists, so should be listed (as '?')
  $ hg status -A --rev 0 amf
  $ hg status -A --rev 0 amm
  A amm
  $ hg status -A --rev 0 amr
  $ hg status -A --rev 0 ara
  A ara
  $ hg status -A --rev 0 arq
  ! arq
  $ hg status -A --rev 0 aru
  ? aru
  $ hg status -A --rev 0 xad
  ! xad
BROKEN: file exists, so should be listed (as '?')
  $ hg status -A --rev 0 xaf
  $ hg status -A --rev 0 xam
  A xam
  $ hg status -A --rev 0 xar