diff -r 1af95139e5ec -r 1ddb296e0dee tests/test-fastannotate-perfhack.t
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test-fastannotate-perfhack.t	Mon Jul 30 22:50:00 2018 -0400
@@ -0,0 +1,182 @@
+  $ cat >> $HGRCPATH << EOF
+  > [extensions]
+  > fastannotate=
+  > [fastannotate]
+  > perfhack=1
+  > EOF
+
+  $ HGMERGE=true; export HGMERGE
+
+  $ hg init repo
+  $ cd repo
+
+a simple merge case
+
+  $ echo 1 > a
+  $ hg commit -qAm 'append 1'
+  $ echo 2 >> a
+  $ hg commit -m 'append 2'
+  $ echo 3 >> a
+  $ hg commit -m 'append 3'
+  $ hg up 1 -q
+  $ cat > a << EOF
+  > 0
+  > 1
+  > 2
+  > EOF
+  $ hg commit -qm 'insert 0'
+  $ hg merge 2 -q
+  $ echo 4 >> a
+  $ hg commit -m merge
+  $ hg log -G -T '{rev}: {desc}'
+  @    4: merge
+  |\
+  | o  3: insert 0
+  | |
+  o |  2: append 3
+  |/
+  o  1: append 2
+  |
+  o  0: append 1
+  
+  $ hg fastannotate a
+  3: 0
+  0: 1
+  1: 2
+  2: 3
+  4: 4
+  $ hg fastannotate -r 0 a
+  0: 1
+  $ hg fastannotate -r 1 a
+  0: 1
+  1: 2
+  $ hg fastannotate -udnclf a
+  test 3 d641cb51f61e Thu Jan 01 00:00:00 1970 +0000 a:1: 0
+  test 0 4994017376d3 Thu Jan 01 00:00:00 1970 +0000 a:1: 1
+  test 1 e940cb6d9a06 Thu Jan 01 00:00:00 1970 +0000 a:2: 2
+  test 2 26162a884ba6 Thu Jan 01 00:00:00 1970 +0000 a:3: 3
+  test 4 3ad7bcd2815f Thu Jan 01 00:00:00 1970 +0000 a:5: 4
+  $ hg fastannotate --linear a
+  3: 0
+  0: 1
+  1: 2
+  4: 3
+  4: 4
+
+incrementally updating
+
+  $ hg fastannotate -r 0 a --debug
+  fastannotate: a: using fast path (resolved fctx: True)
+  0: 1
+  $ hg fastannotate -r 0 a --debug --rebuild
+  fastannotate: a: 1 new changesets in the main branch
+  0: 1
+  $ hg fastannotate -r 1 a --debug
+  fastannotate: a: 1 new changesets in the main branch
+  0: 1
+  1: 2
+  $ hg fastannotate -r 3 a --debug
+  fastannotate: a: 1 new changesets in the main branch
+  3: 0
+  0: 1
+  1: 2
+  $ hg fastannotate -r 4 a --debug
+  fastannotate: a: 1 new changesets in the main branch
+  3: 0
+  0: 1
+  1: 2
+  2: 3
+  4: 4
+  $ hg fastannotate -r 1 a --debug
+  fastannotate: a: using fast path (resolved fctx: True)
+  0: 1
+  1: 2
+
+rebuild happens automatically if unable to update
+
+  $ hg fastannotate -r 2 a --debug
+  fastannotate: a: cache broken and deleted
+  fastannotate: a: 3 new changesets in the main branch
+  0: 1
+  1: 2
+  2: 3
+
+config option "fastannotate.mainbranch"
+
+  $ hg fastannotate -r 1 --rebuild --config fastannotate.mainbranch=tip a --debug
+  fastannotate: a: 4 new changesets in the main branch
+  0: 1
+  1: 2
+  $ hg fastannotate -r 4 a --debug
+  fastannotate: a: using fast path (resolved fctx: True)
+  3: 0
+  0: 1
+  1: 2
+  2: 3
+  4: 4
+
+rename
+
+  $ hg mv a b
+  $ cat > b << EOF
+  > 0
+  > 11
+  > 3
+  > 44
+  > EOF
+  $ hg commit -m b -q
+  $ hg fastannotate -ncf --long-hash b
+  3 d641cb51f61e331c44654104301f8154d7865c89 a: 0
+  5 d44dade239915bc82b91e4556b1257323f8e5824 b: 11
+  2 26162a884ba60e8c87bf4e0d6bb8efcc6f711a4e a: 3
+  5 d44dade239915bc82b91e4556b1257323f8e5824 b: 44
+  $ hg fastannotate -r 26162a884ba60e8c87bf4e0d6bb8efcc6f711a4e a
+  0: 1
+  1: 2
+  2: 3
+
+fastannotate --deleted
+
+  $ hg fastannotate --deleted -nf b
+  3 a:  0
+  5 b:  11
+  0 a: -1
+  1 a: -2
+  2 a:  3
+  5 b:  44
+  4 a: -4
+  $ hg fastannotate --deleted -r 3 -nf a
+  3 a:  0
+  0 a:  1
+  1 a:  2
+
+file and directories with ".l", ".m" suffixes
+
+  $ cd ..
+  $ hg init repo2
+  $ cd repo2
+
+  $ mkdir a.l b.m c.lock a.l.hg b.hg
+  $ for i in a b c d d.l d.m a.l/a b.m/a c.lock/a a.l.hg/a b.hg/a; do
+  >   echo $i > $i
+  > done
+  $ hg add . -q
+  $ hg commit -m init
+  $ hg fastannotate a.l/a b.m/a c.lock/a a.l.hg/a b.hg/a d.l d.m a b c d
+  0: a
+  0: a.l.hg/a
+  0: a.l/a
+  0: b
+  0: b.hg/a
+  0: b.m/a
+  0: c
+  0: c.lock/a
+  0: d
+  0: d.l
+  0: d.m
+
+empty file
+
+  $ touch empty
+  $ hg commit -A empty -m empty
+  $ hg fastannotate empty