terse: add tests of running from subdirectory

I also included comments explaining what I think the output should be
(discussion started on D3628).

Differential Revision: https://phab.mercurial-scm.org/D3837

tests/test-status-terse.t

@@ -1,237 +1,279 b''
   $ mkdir folder
   $ cd folder
   $ hg init
   $ mkdir x x/l x/m x/n x/l/u x/l/u/a
   $ touch a b x/aa.o x/bb.o
   $ hg status
   ? a
   ? b
   ? x/aa.o
   ? x/bb.o
 
   $ hg status --terse u
   ? a
   ? b
   ? x/
   $ hg status --terse maudric
   ? a
   ? b
   ? x/
   $ hg status --terse madric
   ? a
   ? b
   ? x/aa.o
   ? x/bb.o
   $ hg status --terse f
   abort: 'f' not recognized
   [255]
 
 Add a .hgignore so that we can also have ignored files
 
   $ echo ".*\.o" > .hgignore
   $ hg status
   ? .hgignore
   ? a
   ? b
   $ hg status -i
   I x/aa.o
   I x/bb.o
 
 Tersing ignored files
   $ hg status -t i --ignored
   I x/
 
 Adding more files
   $ mkdir y
   $ touch x/aa x/bb y/l y/m y/l.o y/m.o
   $ touch x/l/aa x/m/aa x/n/aa x/l/u/bb x/l/u/a/bb
 
   $ hg status
   ? .hgignore
   ? a
   ? b
   ? x/aa
   ? x/bb
   ? x/l/aa
   ? x/l/u/a/bb
   ? x/l/u/bb
   ? x/m/aa
   ? x/n/aa
   ? y/l
   ? y/m
 
   $ hg status --terse u
   ? .hgignore
   ? a
   ? b
   ? x/
   ? y/
 
+Run from subdirectory
+  $ hg status --terse u --cwd x/l
+  ? .hgignore
+  ? a
+  ? b
+  ? x/
+  ? y/
+  $ relstatus() {
+  >   hg status --terse u --config commands.status.relative=1 "$@";
+  > }
+This should probably have {"l/", "m/", "n/"} instead of {"."}. They should
+probably come after "../y/".
+  $ relstatus --cwd x
+  ? ../.hgignore
+  ? ../a
+  ? ../b
+  ? .
+  ? ../y/
+This should probably have {"u/", "../m/", "../n/"} instead of {"../"}.
+  $ relstatus --cwd x/l
+  ? ../../.hgignore
+  ? ../../a
+  ? ../../b
+  ? ../
+  ? ../../y/
+This should probably have {"a/", "bb", "../aa", "../../m/", "../../n/"}
+instead of {"../../"}.
+  $ relstatus --cwd x/l/u
+  ? ../../../.hgignore
+  ? ../../../a
+  ? ../../../b
+  ? ../../
+  ? ../../../y/
+This should probably have {"bb", "../bb", "../../aa", "../../../m/",
+"../../../n/"} instead of {"../../../"}.
+  $ relstatus --cwd x/l/u/a
+  ? ../../../../.hgignore
+  ? ../../../../a
+  ? ../../../../b
+  ? ../../../
+  ? ../../../../y/
+
   $ hg add x/aa x/bb .hgignore
   $ hg status --terse au
   A .hgignore
   A x/aa
   A x/bb
   ? a
   ? b
   ? x/l/
   ? x/m/
   ? x/n/
   ? y/
 
 Including ignored files
 
   $ hg status --terse aui
   A .hgignore
   A x/aa
   A x/bb
   ? a
   ? b
   ? x/l/
   ? x/m/
   ? x/n/
   ? y/l
   ? y/m
   $ hg status --terse au -i
   I x/aa.o
   I x/bb.o
   I y/l.o
   I y/m.o
 
 Committing some of the files
 
   $ hg commit x/aa x/bb .hgignore -m "First commit"
   $ hg status
   ? a
   ? b
   ? x/l/aa
   ? x/l/u/a/bb
   ? x/l/u/bb
   ? x/m/aa
   ? x/n/aa
   ? y/l
   ? y/m
   $ hg status --terse mardu
   ? a
   ? b
   ? x/l/
   ? x/m/
   ? x/n/
   ? y/
 
 Modifying already committed files
 
   $ echo "Hello" >> x/aa
   $ echo "World" >> x/bb
   $ hg status --terse maurdc
   M x/aa
   M x/bb
   ? a
   ? b
   ? x/l/
   ? x/m/
   ? x/n/
   ? y/
 
 Respecting other flags
 
   $ hg status --terse marduic --all
   M x/aa
   M x/bb
   ? a
   ? b
   ? x/l/
   ? x/m/
   ? x/n/
   ? y/l
   ? y/m
   I x/aa.o
   I x/bb.o
   I y/l.o
   I y/m.o
   C .hgignore
   $ hg status --terse marduic -a
   $ hg status --terse marduic -c
   C .hgignore
   $ hg status --terse marduic -m
   M x/aa
   M x/bb
 
 Passing 'i' in terse value will consider the ignored files while tersing
 
   $ hg status --terse marduic -u
   ? a
   ? b
   ? x/l/
   ? x/m/
   ? x/n/
   ? y/l
   ? y/m
 
 Omitting 'i' in terse value does not consider ignored files while tersing
 
   $ hg status --terse marduc -u
   ? a
   ? b
   ? x/l/
   ? x/m/
   ? x/n/
   ? y/
 
 Trying with --rev
 
   $ hg status --terse marduic --rev 0 --rev 1
   abort: cannot use --terse with --rev
   [255]
 
 Config item to set the default terseness
   $ cat <<EOF >> $HGRCPATH
   > [commands]
   > status.terse = u
   > EOF
   $ hg status -mu
   M x/aa
   M x/bb
   ? a
   ? b
   ? x/l/
   ? x/m/
   ? x/n/
   ? y/
 
 Command line flag overrides the default
   $ hg status --terse=
   M x/aa
   M x/bb
   ? a
   ? b
   ? x/l/aa
   ? x/l/u/a/bb
   ? x/l/u/bb
   ? x/m/aa
   ? x/n/aa
   ? y/l
   ? y/m
   $ hg status --terse=mardu
   M x/aa
   M x/bb
   ? a
   ? b
   ? x/l/
   ? x/m/
   ? x/n/
   ? y/
 
 Specifying --rev should still work, with the terseness disabled.
   $ hg status --rev 0
   M x/aa
   M x/bb
   ? a
   ? b
   ? x/l/aa
   ? x/l/u/a/bb
   ? x/l/u/bb
   ? x/m/aa
   ? x/n/aa
   ? y/l
   ? y/m