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revwalk.js
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tests
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revwalk.js
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var
assert
=
require
(
"assert"
)
;
var
path
=
require
(
"path"
)
;
var
local
=
path
.
join
.
bind
(
path
,
__dirname
)
;
describe
(
"Revwalk"
,
function
(
)
{
var
NodeGit
=
require
(
"../../"
)
;
var
Repository
=
NodeGit
.
Repository
;
var
Revwalk
=
NodeGit
.
Revwalk
;
var
Oid
=
NodeGit
.
Oid
;
var
reposPath
=
local
(
"../repos/workdir"
)
;
// Set a reasonable timeout here now that our repository has grown.
this
.
timeout
(
120000
)
;
beforeEach
(
function
(
)
{
var
test
=
this
;
return
Repository
.
open
(
reposPath
)
.
then
(
function
(
repository
)
{
test
.
repository
=
repository
;
return
test
.
repository
.
getBranchCommit
(
"rev-walk"
)
;
}
)
.
then
(
function
(
commit
)
{
test
.
commit
=
commit
;
}
)
;
}
)
;
beforeEach
(
function
(
)
{
this
.
walker
=
this
.
repository
.
createRevWalk
(
)
;
this
.
walker
.
push
(
this
.
commit
.
id
(
)
)
;
}
)
;
it
(
"can create a walker"
,
function
(
)
{
assert
.
ok
(
this
.
walker
instanceof
Revwalk
)
;
}
)
;
it
(
"can push an object"
,
function
(
)
{
var
sha
=
this
.
commit
.
sha
(
)
;
return
this
.
walker
.
next
(
)
.
then
(
function
(
commit
)
{
assert
.
equal
(
sha
,
commit
)
;
}
)
;
}
)
;
it
(
"can hide an object"
,
function
(
)
{
var
test
=
this
;
return
next
(
test
.
walker
,
4
)
.
then
(
function
(
commit
)
{
assert
.
equal
(
commit
.
toString
(
)
,
"b8a94aefb22d0534cc0e5acf533989c13d8725dc"
)
;
test
.
walker
=
test
.
repository
.
createRevWalk
(
)
;
test
.
walker
.
push
(
test
.
commit
.
id
(
)
)
;
test
.
walker
.
hide
(
Oid
.
fromString
(
"b8a94aefb22d0534cc0e5acf533989c13d8725dc"
)
)
;
return
next
(
test
.
walker
,
3
)
;
}
)
.
then
(
function
(
commit
)
{
assert
.
equal
(
commit
.
toString
(
)
,
"95f695136203a372751c19b6353aeb5ae32ea40e"
)
;
return
next
(
test
.
walker
,
1
)
;
}
)
.
then
(
function
(
commit
)
{
assert
.
equal
(
commit
,
undefined
)
;
}
)
;
}
)
;
it
(
"can simplify to first parent"
,
function
(
)
{
var
test
=
this
;
test
.
walker
.
simplifyFirstParent
(
)
;
return
next
(
test
.
walker
,
3
)
.
then
(
function
(
commit
)
{
assert
.
equal
(
commit
.
toString
(
)
,
"b8a94aefb22d0534cc0e5acf533989c13d8725dc"
)
;
}
)
;
}
)
;
it
(
"can get a specified number of commits"
,
function
(
)
{
var
test
=
this
;
var
storedCommits
;
return
test
.
walker
.
getCommits
(
)
.
then
(
function
(
commits
)
{
assert
.
equal
(
commits
.
length
,
10
)
;
storedCommits
=
commits
;
test
.
walker
=
test
.
repository
.
createRevWalk
(
)
;
test
.
walker
.
push
(
test
.
commit
.
id
(
)
)
;
return
test
.
walker
.
getCommits
(
8
)
;
}
)
.
then
(
function
(
commits
)
{
assert
.
equal
(
commits
.
length
,
8
)
;
for
(
var
i
=
0
;
i
<
8
;
i
++
)
{
assert
.
equal
(
commits
[
i
]
.
toString
(
)
,
storedCommits
[
i
]
.
toString
(
)
)
;
}
}
)
;
}
)
;
it
(
"can get commits until you tell it not to"
,
function
(
)
{
var
test
=
this
;
var
magicSha
=
"b8a94aefb22d0534cc0e5acf533989c13d8725dc"
;
function
checkCommit
(
commit
)
{
return
commit
.
toString
(
)
!=
magicSha
;
}
return
test
.
walker
.
getCommitsUntil
(
checkCommit
)
.
then
(
function
(
commits
)
{
assert
.
equal
(
commits
.
length
,
4
)
;
assert
.
equal
(
commits
[
commits
.
length
-
1
]
.
toString
(
)
,
magicSha
)
;
}
)
;
}
)
;
// This test requires forcing garbage collection, so mocha needs to be run
// via node rather than npm, with a la `node --expose-gc [pathtohmoca]
// [testglob]`
var
testGC
=
global
.
gc
?
it
:
it
.
skip
;
testGC
(
"doesnt segfault when accessing .author() twice"
,
function
(
done
)
{
Repository
.
open
(
reposPath
)
.
then
(
function
(
repository
)
{
var
walker
=
repository
.
createRevWalk
(
)
;
repository
.
getMasterCommit
(
)
.
then
(
function
(
firstCommitOnMaster
)
{
walker
.
walk
(
firstCommitOnMaster
,
function
(
err
,
commit
)
{
if
(
!
err
&&
!
commit
)
{
return
done
(
)
;
}
for
(
var
i
=
0
;
i
<
500
;
i
++
)
{
commit
.
author
(
)
.
name
(
)
;
commit
.
author
(
)
.
email
(
)
;
if
(
i
%
250
===
0
)
{
global
.
gc
(
)
;
}
}
}
)
;
}
)
;
}
)
;
}
)
;
function
next
(
walker
,
count
)
{
var
promise
=
null
;
for
(
var
i
=
0
;
i
<
count
;
i
++
)
{
if
(
!
promise
)
{
promise
=
walker
.
next
(
)
;
}
else
{
promise
=
promise
.
then
(
getNext
)
;
}
}
return
promise
;
function
getNext
(
)
{
return
walker
.
next
(
)
;
}
}
}
)
;
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