mirror of
https://github.com/git/git
synced 2024-08-27 11:39:22 +00:00
![Jonathan Nieder](/assets/img/avatar_default.png)
Most of git's tests write files and define shell functions and variables that will last throughout a test script at the top of the script, before all test assertions: . ./test-lib.sh VAR='some value' export VAR >empty fn () { do something } test_expect_success 'setup' ' ... nontrivial commands go here ... ' Two scripts use a different style with this kind of trivial code enclosed by a test assertion; fix them. The usual style is easier to read since there is less indentation to keep track of and no need to worry about nested quotes; and on the other hand, because the commands in question are trivial, it should not make the test suite any worse at catching future bugs in git. While at it, make some other small tweaks: - spell function definitions with a space before () for consistency with other scripts; - use the self-contained command "git mktree </dev/null" in preference to "git write-tree" which looks at the index when writing an empty tree. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
234 lines
5.2 KiB
Bash
Executable file
234 lines
5.2 KiB
Bash
Executable file
#!/bin/sh
|
|
#
|
|
# Copyright (c) 2005 Junio C Hamano
|
|
#
|
|
|
|
test_description='Merge base and parent list computation.
|
|
'
|
|
|
|
. ./test-lib.sh
|
|
|
|
M=1130000000
|
|
Z=+0000
|
|
|
|
GIT_COMMITTER_EMAIL=git@comm.iter.xz
|
|
GIT_COMMITTER_NAME='C O Mmiter'
|
|
GIT_AUTHOR_NAME='A U Thor'
|
|
GIT_AUTHOR_EMAIL=git@au.thor.xz
|
|
export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL
|
|
|
|
doit () {
|
|
OFFSET=$1 &&
|
|
NAME=$2 &&
|
|
shift 2 &&
|
|
|
|
PARENTS= &&
|
|
for P
|
|
do
|
|
PARENTS="${PARENTS}-p $P "
|
|
done &&
|
|
|
|
GIT_COMMITTER_DATE="$(($M + $OFFSET)) $Z" &&
|
|
GIT_AUTHOR_DATE=$GIT_COMMITTER_DATE &&
|
|
export GIT_COMMITTER_DATE GIT_AUTHOR_DATE &&
|
|
|
|
commit=$(echo $NAME | git commit-tree $T $PARENTS) &&
|
|
|
|
echo $commit >.git/refs/tags/$NAME &&
|
|
echo $commit
|
|
}
|
|
|
|
test_expect_success 'setup' '
|
|
T=$(git mktree </dev/null)
|
|
'
|
|
|
|
test_expect_success 'set up G and H' '
|
|
# E---D---C---B---A
|
|
# \"-_ \ \
|
|
# \ `---------G \
|
|
# \ \
|
|
# F----------------H
|
|
E=$(doit 5 E) &&
|
|
D=$(doit 4 D $E) &&
|
|
F=$(doit 6 F $E) &&
|
|
C=$(doit 3 C $D) &&
|
|
B=$(doit 2 B $C) &&
|
|
A=$(doit 1 A $B) &&
|
|
G=$(doit 7 G $B $E) &&
|
|
H=$(doit 8 H $A $F)
|
|
'
|
|
|
|
test_expect_success 'merge-base G H' '
|
|
git name-rev $B >expected &&
|
|
|
|
MB=$(git merge-base G H) &&
|
|
git name-rev "$MB" >actual.single &&
|
|
|
|
MB=$(git merge-base --all G H) &&
|
|
git name-rev "$MB" >actual.all &&
|
|
|
|
MB=$(git show-branch --merge-base G H) &&
|
|
git name-rev "$MB" >actual.sb &&
|
|
|
|
test_cmp expected actual.single &&
|
|
test_cmp expected actual.all &&
|
|
test_cmp expected actual.sb
|
|
'
|
|
|
|
test_expect_success 'merge-base/show-branch --independent' '
|
|
git name-rev "$H" >expected1 &&
|
|
git name-rev "$H" "$G" >expected2 &&
|
|
|
|
parents=$(git merge-base --independent H) &&
|
|
git name-rev $parents >actual1.mb &&
|
|
parents=$(git merge-base --independent A H G) &&
|
|
git name-rev $parents >actual2.mb &&
|
|
|
|
parents=$(git show-branch --independent H) &&
|
|
git name-rev $parents >actual1.sb &&
|
|
parents=$(git show-branch --independent A H G) &&
|
|
git name-rev $parents >actual2.sb &&
|
|
|
|
test_cmp expected1 actual1.mb &&
|
|
test_cmp expected2 actual2.mb &&
|
|
test_cmp expected1 actual1.sb &&
|
|
test_cmp expected2 actual2.sb
|
|
'
|
|
|
|
test_expect_success 'unsynchronized clocks' '
|
|
# This test is to demonstrate that relying on timestamps in a distributed
|
|
# SCM to provide a _consistent_ partial ordering of commits leads to
|
|
# insanity.
|
|
#
|
|
# Relative
|
|
# Structure timestamps
|
|
#
|
|
# PL PR +4 +4
|
|
# / \/ \ / \/ \
|
|
# L2 C2 R2 +3 -1 +3
|
|
# | | | | | |
|
|
# L1 C1 R1 +2 -2 +2
|
|
# | | | | | |
|
|
# L0 C0 R0 +1 -3 +1
|
|
# \ | / \ | /
|
|
# S 0
|
|
#
|
|
# The left and right chains of commits can be of any length and complexity as
|
|
# long as all of the timestamps are greater than that of S.
|
|
|
|
S=$(doit 0 S) &&
|
|
|
|
C0=$(doit -3 C0 $S) &&
|
|
C1=$(doit -2 C1 $C0) &&
|
|
C2=$(doit -1 C2 $C1) &&
|
|
|
|
L0=$(doit 1 L0 $S) &&
|
|
L1=$(doit 2 L1 $L0) &&
|
|
L2=$(doit 3 L2 $L1) &&
|
|
|
|
R0=$(doit 1 R0 $S) &&
|
|
R1=$(doit 2 R1 $R0) &&
|
|
R2=$(doit 3 R2 $R1) &&
|
|
|
|
PL=$(doit 4 PL $L2 $C2) &&
|
|
PR=$(doit 4 PR $C2 $R2) &&
|
|
|
|
git name-rev $C2 >expected &&
|
|
|
|
MB=$(git merge-base PL PR) &&
|
|
git name-rev "$MB" >actual.single &&
|
|
|
|
MB=$(git merge-base --all PL PR) &&
|
|
git name-rev "$MB" >actual.all &&
|
|
|
|
test_cmp expected actual.single &&
|
|
test_cmp expected actual.all
|
|
'
|
|
|
|
test_expect_success '--independent with unsynchronized clocks' '
|
|
IB=$(doit 0 IB) &&
|
|
I1=$(doit -10 I1 $IB) &&
|
|
I2=$(doit -9 I2 $I1) &&
|
|
I3=$(doit -8 I3 $I2) &&
|
|
I4=$(doit -7 I4 $I3) &&
|
|
I5=$(doit -6 I5 $I4) &&
|
|
I6=$(doit -5 I6 $I5) &&
|
|
I7=$(doit -4 I7 $I6) &&
|
|
I8=$(doit -3 I8 $I7) &&
|
|
IH=$(doit -2 IH $I8) &&
|
|
|
|
echo $IH >expected &&
|
|
git merge-base --independent IB IH >actual &&
|
|
test_cmp expected actual
|
|
'
|
|
|
|
test_expect_success 'merge-base for octopus-step (setup)' '
|
|
# Another set to demonstrate base between one commit and a merge
|
|
# in the documentation.
|
|
#
|
|
# * C (MMC) * B (MMB) * A (MMA)
|
|
# * o * o * o
|
|
# * o * o * o
|
|
# * o * o * o
|
|
# * o | _______/
|
|
# | |/
|
|
# | * 1 (MM1)
|
|
# | _______/
|
|
# |/
|
|
# * root (MMR)
|
|
|
|
test_commit MMR &&
|
|
test_commit MM1 &&
|
|
test_commit MM-o &&
|
|
test_commit MM-p &&
|
|
test_commit MM-q &&
|
|
test_commit MMA &&
|
|
git checkout MM1 &&
|
|
test_commit MM-r &&
|
|
test_commit MM-s &&
|
|
test_commit MM-t &&
|
|
test_commit MMB &&
|
|
git checkout MMR &&
|
|
test_commit MM-u &&
|
|
test_commit MM-v &&
|
|
test_commit MM-w &&
|
|
test_commit MM-x &&
|
|
test_commit MMC
|
|
'
|
|
|
|
test_expect_success 'merge-base A B C' '
|
|
git rev-parse --verify MM1 >expected &&
|
|
git rev-parse --verify MMR >expected.sb &&
|
|
|
|
git merge-base --all MMA MMB MMC >actual &&
|
|
git merge-base --all --octopus MMA MMB MMC >actual.common &&
|
|
git show-branch --merge-base MMA MMB MMC >actual.sb &&
|
|
|
|
test_cmp expected actual &&
|
|
test_cmp expected.sb actual.common &&
|
|
test_cmp expected.sb actual.sb
|
|
'
|
|
|
|
test_expect_success 'criss-cross merge-base for octopus-step' '
|
|
git reset --hard MMR &&
|
|
test_commit CC1 &&
|
|
git reset --hard E &&
|
|
test_commit CC2 &&
|
|
test_tick &&
|
|
git merge -s ours CC1 &&
|
|
test_commit CC-o &&
|
|
test_commit CCB &&
|
|
git reset --hard CC1 &&
|
|
git merge -s ours CC2 &&
|
|
test_commit CCA &&
|
|
|
|
git rev-parse CC1 CC2 >expected &&
|
|
git merge-base --all CCB CCA^^ CCA^^2 >actual &&
|
|
|
|
sort expected >expected.sorted &&
|
|
sort actual >actual.sorted &&
|
|
test_cmp expected.sorted actual.sorted
|
|
'
|
|
|
|
test_done
|