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sapling/tests/test-fb-hgext-simplecache.t
Durham Goode 8d31ac8424 simplecache: add checksum to simplecache values 
Summary:
We're encountering an issue that I think is caused by invalid data
coming back from memcache, possibly due to our recently introduced connection
reusing. Let's add some checksums to verify that the data we put in is identical
to the data we get out for a given key.

Reviewed By: kulshrax

Differential Revision: D14141683

fbshipit-source-id: 206b51b862db7d54def02f5310b90f473d5a0d03
2019-02-20 13:56:33 -08:00

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Raku
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#require no-osx
Setup the extension
$ cat >> $HGRCPATH << EOF
> [extensions]
> simplecache=
> [simplecache]
> showdebug=true
> cachedir=$TESTTMP/hgsimplecache
> EOF
Initialize the repo
$ hg init repo
$ cd repo
$ echo x >> x
$ hg commit -Am x
adding x
$ hg mv x y
$ echo x >> y
$ hg st -C
A y
x
R x
$ hg commit -Am xx
$ hg book foo
Test that output remains the same with multiple invocations.
$ hg --debug export
exporting patch:
# HG changeset patch
# User test
# Date 0 0
# Thu Jan 01 00:00:00 1970 +0000
# Node ID a5d935fe38ada2b984c29e4e02bffd7f19bf818d
# Parent b292c1e3311fd0f13ae83b409caae4a6d1fb348c
xx
no value found for key buildstatus:a5d935fe38ada2b984c29e4e02bffd7f19bf818d:b292c1e3311fd0f13ae83b409caae4a6d1fb348c:v2 from local
falling back for value buildstatus:a5d935fe38ada2b984c29e4e02bffd7f19bf818d:b292c1e3311fd0f13ae83b409caae4a6d1fb348c:v2
set value for key buildstatus:a5d935fe38ada2b984c29e4e02bffd7f19bf818d:b292c1e3311fd0f13ae83b409caae4a6d1fb348c:v2 to local
diff -r b292c1e3311fd0f13ae83b409caae4a6d1fb348c -r a5d935fe38ada2b984c29e4e02bffd7f19bf818d x
--- a/x Thu Jan 01 00:00:00 1970 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,1 +0,0 @@
-x
diff -r b292c1e3311fd0f13ae83b409caae4a6d1fb348c -r a5d935fe38ada2b984c29e4e02bffd7f19bf818d y
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/y Thu Jan 01 00:00:00 1970 +0000
@@ -0,0 +1,2 @@
+x
+x
$ hg --debug export
exporting patch:
# HG changeset patch
# User test
# Date 0 0
# Thu Jan 01 00:00:00 1970 +0000
# Node ID a5d935fe38ada2b984c29e4e02bffd7f19bf818d
# Parent b292c1e3311fd0f13ae83b409caae4a6d1fb348c
xx
got value for key buildstatus:a5d935fe38ada2b984c29e4e02bffd7f19bf818d:b292c1e3311fd0f13ae83b409caae4a6d1fb348c:v2 from local
diff -r b292c1e3311fd0f13ae83b409caae4a6d1fb348c -r a5d935fe38ada2b984c29e4e02bffd7f19bf818d x
--- a/x Thu Jan 01 00:00:00 1970 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,1 +0,0 @@
-x
diff -r b292c1e3311fd0f13ae83b409caae4a6d1fb348c -r a5d935fe38ada2b984c29e4e02bffd7f19bf818d y
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/y Thu Jan 01 00:00:00 1970 +0000
@@ -0,0 +1,2 @@
+x
+x
$ hg --debug log -vpC -r .
got value for key buildstatus:a5d935fe38ada2b984c29e4e02bffd7f19bf818d:b292c1e3311fd0f13ae83b409caae4a6d1fb348c:v2 from local
got value for key buildstatus:a5d935fe38ada2b984c29e4e02bffd7f19bf818d:b292c1e3311fd0f13ae83b409caae4a6d1fb348c:v2 from local
changeset: 1:a5d935fe38ada2b984c29e4e02bffd7f19bf818d
bookmark: foo
tag: tip
phase: draft
parent: 0:b292c1e3311fd0f13ae83b409caae4a6d1fb348c
parent: -1:0000000000000000000000000000000000000000
manifest: 1:87b34bbb5b48d4106fd2da95fbe8beb73c1850d2
user: test
date: Thu Jan 01 00:00:00 1970 +0000
files+: y
files-: x
copies: y (x)
extra: branch=default
description:
xx
diff -r b292c1e3311fd0f13ae83b409caae4a6d1fb348c -r a5d935fe38ada2b984c29e4e02bffd7f19bf818d x
--- a/x Thu Jan 01 00:00:00 1970 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,1 +0,0 @@
-x
diff -r b292c1e3311fd0f13ae83b409caae4a6d1fb348c -r a5d935fe38ada2b984c29e4e02bffd7f19bf818d y
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/y Thu Jan 01 00:00:00 1970 +0000
@@ -0,0 +1,2 @@
+x
+x
$ hg log -vp -r .
changeset: 1:a5d935fe38ad
bookmark: foo
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
files: x y
description:
xx
diff -r b292c1e3311f -r a5d935fe38ad x
--- a/x Thu Jan 01 00:00:00 1970 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,1 +0,0 @@
-x
diff -r b292c1e3311f -r a5d935fe38ad y
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/y Thu Jan 01 00:00:00 1970 +0000
@@ -0,0 +1,2 @@
+x
+x
Test that disabling the cache entirely doesn't break things
$ hg --debug --config simplecache.caches= export
exporting patch:
# HG changeset patch
# User test
# Date 0 0
# Thu Jan 01 00:00:00 1970 +0000
# Node ID a5d935fe38ada2b984c29e4e02bffd7f19bf818d
# Parent b292c1e3311fd0f13ae83b409caae4a6d1fb348c
xx
falling back for value buildstatus:a5d935fe38ada2b984c29e4e02bffd7f19bf818d:b292c1e3311fd0f13ae83b409caae4a6d1fb348c:v2
diff -r b292c1e3311fd0f13ae83b409caae4a6d1fb348c -r a5d935fe38ada2b984c29e4e02bffd7f19bf818d x
--- a/x Thu Jan 01 00:00:00 1970 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,1 +0,0 @@
-x
diff -r b292c1e3311fd0f13ae83b409caae4a6d1fb348c -r a5d935fe38ada2b984c29e4e02bffd7f19bf818d y
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/y Thu Jan 01 00:00:00 1970 +0000
@@ -0,0 +1,2 @@
+x
+x
Test that corrupt caches are gracefully ignored, and updated
# Use a long value so we trigger checksum validation
$ printf "12345678901234567890123456789012345678901234567890" > "$TESTTMP/hgsimplecache/buildstatus:a5d935fe38ada2b984c29e4e02bffd7f19bf818d:b292c1e3311fd0f13ae83b409caae4a6d1fb348c:v2"
$ hg --debug log -vpC -r .
got value for key buildstatus:a5d935fe38ada2b984c29e4e02bffd7f19bf818d:b292c1e3311fd0f13ae83b409caae4a6d1fb348c:v2 from local
error getting or deserializing key buildstatus:a5d935fe38ada2b984c29e4e02bffd7f19bf818d:b292c1e3311fd0f13ae83b409caae4a6d1fb348c:v2: invalid hash from simplecache for key 'buildstatus:a5d935fe38ada2b984c29e4e02bffd7f19bf818d:b292c1e3311fd0f13ae83b409caae4a6d1fb348c:v2'
no value found for key buildstatus:a5d935fe38ada2b984c29e4e02bffd7f19bf818d:b292c1e3311fd0f13ae83b409caae4a6d1fb348c:v2 from local
falling back for value buildstatus:a5d935fe38ada2b984c29e4e02bffd7f19bf818d:b292c1e3311fd0f13ae83b409caae4a6d1fb348c:v2
set value for key buildstatus:a5d935fe38ada2b984c29e4e02bffd7f19bf818d:b292c1e3311fd0f13ae83b409caae4a6d1fb348c:v2 to local
got value for key buildstatus:a5d935fe38ada2b984c29e4e02bffd7f19bf818d:b292c1e3311fd0f13ae83b409caae4a6d1fb348c:v2 from local
changeset: 1:a5d935fe38ada2b984c29e4e02bffd7f19bf818d
bookmark: foo
tag: tip
phase: draft
parent: 0:b292c1e3311fd0f13ae83b409caae4a6d1fb348c
parent: -1:0000000000000000000000000000000000000000
manifest: 1:87b34bbb5b48d4106fd2da95fbe8beb73c1850d2
user: test
date: Thu Jan 01 00:00:00 1970 +0000
files+: y
files-: x
copies: y (x)
extra: branch=default
description:
xx
diff -r b292c1e3311fd0f13ae83b409caae4a6d1fb348c -r a5d935fe38ada2b984c29e4e02bffd7f19bf818d x
--- a/x Thu Jan 01 00:00:00 1970 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,1 +0,0 @@
-x
diff -r b292c1e3311fd0f13ae83b409caae4a6d1fb348c -r a5d935fe38ada2b984c29e4e02bffd7f19bf818d y
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/y Thu Jan 01 00:00:00 1970 +0000
@@ -0,0 +1,2 @@
+x
+x
Test strange (unicode) filenames
$ printf "delete cca.hg.buildstatus:f3a143469693894d291b7388ea8392a07492751f:a5d935fe38ada2b984c29e4e02bffd7f19bf818d:v2\r\n" | nc localhost 11101
* (glob)
$ echo 'x' > Å
$ hg add Å
$ hg commit -m 'unicode test'
$ hg export --debug
exporting patch:
# HG changeset patch
# User test
# Date 0 0
# Thu Jan 01 00:00:00 1970 +0000
# Node ID f3a143469693894d291b7388ea8392a07492751f
# Parent a5d935fe38ada2b984c29e4e02bffd7f19bf818d
unicode test
no value found for key buildstatus:f3a143469693894d291b7388ea8392a07492751f:a5d935fe38ada2b984c29e4e02bffd7f19bf818d:v2 from local
falling back for value buildstatus:f3a143469693894d291b7388ea8392a07492751f:a5d935fe38ada2b984c29e4e02bffd7f19bf818d:v2
set value for key buildstatus:f3a143469693894d291b7388ea8392a07492751f:a5d935fe38ada2b984c29e4e02bffd7f19bf818d:v2 to local
diff -r a5d935fe38ada2b984c29e4e02bffd7f19bf818d -r f3a143469693894d291b7388ea8392a07492751f \xc3\x85 (esc)
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/\xc3\x85 Thu Jan 01 00:00:00 1970 +0000 (esc)
@@ -0,0 +1,1 @@
+x
$ hg --debug log -vpC -r .
got value for key buildstatus:f3a143469693894d291b7388ea8392a07492751f:a5d935fe38ada2b984c29e4e02bffd7f19bf818d:v2 from local
got value for key buildstatus:f3a143469693894d291b7388ea8392a07492751f:a5d935fe38ada2b984c29e4e02bffd7f19bf818d:v2 from local
changeset: 2:f3a143469693894d291b7388ea8392a07492751f
bookmark: foo
tag: tip
phase: draft
parent: 1:a5d935fe38ada2b984c29e4e02bffd7f19bf818d
parent: -1:0000000000000000000000000000000000000000
manifest: 2:0640a75d79d252a6348f1e2316af42e7960b4a90
user: test
date: Thu Jan 01 00:00:00 1970 +0000
files+: \xc3\x85 (esc)
extra: branch=default
description:
unicode test
diff -r a5d935fe38ada2b984c29e4e02bffd7f19bf818d -r f3a143469693894d291b7388ea8392a07492751f \xc3\x85 (esc)
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/\xc3\x85 Thu Jan 01 00:00:00 1970 +0000 (esc)
@@ -0,0 +1,1 @@
+x
Test local cache eviction
$ echo 'x' >> y && hg commit -qm "1" && hg export --debug > /dev/null
$ echo 'x' >> y && hg commit -qm "2" && hg export --debug > /dev/null
$ echo 'x' >> y && hg commit -qm "3" && hg export --debug > /dev/null
$ echo 'x' >> y && hg commit -qm "4" && hg export --debug > /dev/null
$ echo 'x' >> y && hg commit -qm "5" && hg export --debug > /dev/null
$ echo 'x' >> y && hg commit -qm "6" && hg export --debug > /dev/null
$ ls $TESTTMP/hgsimplecache | grep -c buildstatus
8
$ echo 'x' >> y && hg commit -qm "7"
$ hg --debug --config simplecache.maxcachesize=2 --config simplecache.evictionpercent=50 export > /dev/null
$ ls $TESTTMP/hgsimplecache | grep -c buildstatus
5
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