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-rwxr-xr-xt/t0080-vcs-svn.sh117
-rwxr-xr-xt/t9010-svn-fe.sh365
-rwxr-xr-xt/t9011-svn-da.sh248
3 files changed, 556 insertions, 174 deletions
diff --git a/t/t0080-vcs-svn.sh b/t/t0080-vcs-svn.sh
deleted file mode 100755
index 99a314b..0000000
--- a/t/t0080-vcs-svn.sh
+++ /dev/null
@@ -1,117 +0,0 @@
-#!/bin/sh
-
-test_description='check infrastructure for svn importer'
-
-. ./test-lib.sh
-uint32_max=4294967295
-
-test_expect_success 'obj pool: store data' '
- cat <<-\EOF >expected &&
- 0
- 1
- EOF
-
- test-obj-pool <<-\EOF >actual &&
- alloc one 16
- set one 13
- test one 13
- reset one
- EOF
- test_cmp expected actual
-'
-
-test_expect_success 'obj pool: NULL is offset ~0' '
- echo "$uint32_max" >expected &&
- echo null one | test-obj-pool >actual &&
- test_cmp expected actual
-'
-
-test_expect_success 'obj pool: out-of-bounds access' '
- cat <<-EOF >expected &&
- 0
- 0
- $uint32_max
- $uint32_max
- 16
- 20
- $uint32_max
- EOF
-
- test-obj-pool <<-\EOF >actual &&
- alloc one 16
- alloc two 16
- offset one 20
- offset two 20
- alloc one 5
- offset one 20
- free one 1
- offset one 20
- reset one
- reset two
- EOF
- test_cmp expected actual
-'
-
-test_expect_success 'obj pool: high-water mark' '
- cat <<-\EOF >expected &&
- 0
- 0
- 10
- 20
- 20
- 20
- EOF
-
- test-obj-pool <<-\EOF >actual &&
- alloc one 10
- committed one
- alloc one 10
- commit one
- committed one
- alloc one 10
- free one 20
- committed one
- reset one
- EOF
- test_cmp expected actual
-'
-
-test_expect_success 'string pool' '
- echo a does not equal b >expected.differ &&
- echo a equals a >expected.match &&
- echo equals equals equals >expected.matchmore &&
-
- test-string-pool "a,--b" >actual.differ &&
- test-string-pool "a,a" >actual.match &&
- test-string-pool "equals-equals" >actual.matchmore &&
- test_must_fail test-string-pool a,a,a &&
- test_must_fail test-string-pool a &&
-
- test_cmp expected.differ actual.differ &&
- test_cmp expected.match actual.match &&
- test_cmp expected.matchmore actual.matchmore
-'
-
-test_expect_success 'treap sort' '
- cat <<-\EOF >unsorted &&
- 68
- 12
- 13
- 13
- 68
- 13
- 13
- 21
- 10
- 11
- 12
- 13
- 13
- EOF
- sort unsorted >expected &&
-
- test-treap <unsorted >actual &&
- test_cmp expected actual
-'
-
-test_done
diff --git a/t/t9010-svn-fe.sh b/t/t9010-svn-fe.sh
index 6f6175a..b7eed24 100755
--- a/t/t9010-svn-fe.sh
+++ b/t/t9010-svn-fe.sh
@@ -5,8 +5,27 @@ test_description='check svn dumpfile importer'
. ./test-lib.sh
reinit_git () {
+ if ! test_declared_prereq PIPE
+ then
+ echo >&4 "reinit_git: need to declare PIPE prerequisite"
+ return 127
+ fi
rm -fr .git &&
- git init
+ rm -f stream backflow &&
+ git init &&
+ mkfifo stream backflow
+}
+
+try_dump () {
+ input=$1 &&
+ maybe_fail_svnfe=${2:+test_$2} &&
+ maybe_fail_fi=${3:+test_$3} &&
+
+ {
+ $maybe_fail_svnfe test-svn-fe "$input" >stream 3<backflow &
+ } &&
+ $maybe_fail_fi git fast-import --cat-blob-fd=3 <stream 3>backflow &&
+ wait $!
}
properties () {
@@ -35,21 +54,27 @@ text_no_props () {
>empty
-test_expect_success 'empty dump' '
+test_expect_success 'setup: have pipes?' '
+ rm -f frob &&
+ if mkfifo frob
+ then
+ test_set_prereq PIPE
+ fi
+'
+
+test_expect_success PIPE 'empty dump' '
reinit_git &&
echo "SVN-fs-dump-format-version: 2" >input &&
- test-svn-fe input >stream &&
- git fast-import <stream
+ try_dump input
'
-test_expect_success 'v4 dumps not supported' '
+test_expect_success PIPE 'v4 dumps not supported' '
reinit_git &&
echo "SVN-fs-dump-format-version: 4" >v4.dump &&
- test_must_fail test-svn-fe v4.dump >stream &&
- test_cmp empty stream
+ try_dump v4.dump must_fail
'
-test_expect_failure 'empty revision' '
+test_expect_failure PIPE 'empty revision' '
reinit_git &&
printf "rev <nobody, nobody@local>: %s\n" "" "" >expect &&
cat >emptyrev.dump <<-\EOF &&
@@ -64,13 +89,12 @@ test_expect_failure 'empty revision' '
Content-length: 0
EOF
- test-svn-fe emptyrev.dump >stream &&
- git fast-import <stream &&
+ try_dump emptyrev.dump &&
git log -p --format="rev <%an, %ae>: %s" HEAD >actual &&
test_cmp expect actual
'
-test_expect_success 'empty properties' '
+test_expect_success PIPE 'empty properties' '
reinit_git &&
printf "rev <nobody, nobody@local>: %s\n" "" "" >expect &&
cat >emptyprop.dump <<-\EOF &&
@@ -88,13 +112,12 @@ test_expect_success 'empty properties' '
PROPS-END
EOF
- test-svn-fe emptyprop.dump >stream &&
- git fast-import <stream &&
+ try_dump emptyprop.dump &&
git log -p --format="rev <%an, %ae>: %s" HEAD >actual &&
test_cmp expect actual
'
-test_expect_success 'author name and commit message' '
+test_expect_success PIPE 'author name and commit message' '
reinit_git &&
echo "<author@example.com, author@example.com@local>" >expect.author &&
cat >message <<-\EOF &&
@@ -121,15 +144,14 @@ test_expect_success 'author name and commit message' '
echo &&
cat props
} >log.dump &&
- test-svn-fe log.dump >stream &&
- git fast-import <stream &&
+ try_dump log.dump &&
git log -p --format="%B" HEAD >actual.log &&
git log --format="<%an, %ae>" >actual.author &&
test_cmp message actual.log &&
test_cmp expect.author actual.author
'
-test_expect_success 'unsupported properties are ignored' '
+test_expect_success PIPE 'unsupported properties are ignored' '
reinit_git &&
echo author >expect &&
cat >extraprop.dump <<-\EOF &&
@@ -149,13 +171,12 @@ test_expect_success 'unsupported properties are ignored' '
author
PROPS-END
EOF
- test-svn-fe extraprop.dump >stream &&
- git fast-import <stream &&
+ try_dump extraprop.dump &&
git log -p --format=%an HEAD >actual &&
test_cmp expect actual
'
-test_expect_failure 'timestamp and empty file' '
+test_expect_failure PIPE 'timestamp and empty file' '
echo author@example.com >expect.author &&
echo 1999-01-01 >expect.date &&
echo file >expect.files &&
@@ -186,8 +207,7 @@ test_expect_failure 'timestamp and empty file' '
EOF
} >emptyfile.dump &&
- test-svn-fe emptyfile.dump >stream &&
- git fast-import <stream &&
+ try_dump emptyfile.dump &&
git log --format=%an HEAD >actual.author &&
git log --date=short --format=%ad HEAD >actual.date &&
git ls-tree -r --name-only HEAD >actual.files &&
@@ -198,7 +218,7 @@ test_expect_failure 'timestamp and empty file' '
test_cmp empty file
'
-test_expect_success 'directory with files' '
+test_expect_success PIPE 'directory with files' '
reinit_git &&
printf "%s\n" directory/file1 directory/file2 >expect.files &&
echo hi >hi &&
@@ -242,8 +262,7 @@ test_expect_success 'directory with files' '
EOF
text_no_props hi
} >directory.dump &&
- test-svn-fe directory.dump >stream &&
- git fast-import <stream &&
+ try_dump directory.dump &&
git ls-tree -r --name-only HEAD >actual.files &&
git checkout HEAD directory &&
@@ -252,7 +271,107 @@ test_expect_success 'directory with files' '
test_cmp hi directory/file2
'
-test_expect_success 'node without action' '
+test_expect_success PIPE 'branch name with backslash' '
+ reinit_git &&
+ sort <<-\EOF >expect.branch-files &&
+ trunk/file1
+ trunk/file2
+ "branches/UpdateFOPto094\\/file1"
+ "branches/UpdateFOPto094\\/file2"
+ EOF
+
+ echo hi >hi &&
+ echo hello >hello &&
+ {
+ properties \
+ svn:author author@example.com \
+ svn:date "1999-02-02T00:01:02.000000Z" \
+ svn:log "add directory with some files in it" &&
+ echo PROPS-END
+ } >props.setup &&
+ {
+ properties \
+ svn:author brancher@example.com \
+ svn:date "2007-12-06T21:38:34.000000Z" \
+ svn:log "Updating fop to .94 and adjust fo-stylesheets" &&
+ echo PROPS-END
+ } >props.branch &&
+ {
+ cat <<-EOF &&
+ SVN-fs-dump-format-version: 3
+
+ Revision-number: 1
+ EOF
+ echo Prop-content-length: $(wc -c <props.setup) &&
+ echo Content-length: $(wc -c <props.setup) &&
+ echo &&
+ cat props.setup &&
+ cat <<-\EOF &&
+
+ Node-path: trunk
+ Node-kind: dir
+ Node-action: add
+ Prop-content-length: 10
+ Content-length: 10
+
+ PROPS-END
+
+ Node-path: branches
+ Node-kind: dir
+ Node-action: add
+ Prop-content-length: 10
+ Content-length: 10
+
+ PROPS-END
+
+ Node-path: trunk/file1
+ Node-kind: file
+ Node-action: add
+ EOF
+ text_no_props hello &&
+ cat <<-\EOF &&
+ Node-path: trunk/file2
+ Node-kind: file
+ Node-action: add
+ EOF
+ text_no_props hi &&
+ cat <<-\EOF &&
+
+ Revision-number: 2
+ EOF
+ echo Prop-content-length: $(wc -c <props.branch) &&
+ echo Content-length: $(wc -c <props.branch) &&
+ echo &&
+ cat props.branch &&
+ cat <<-\EOF
+
+ Node-path: branches/UpdateFOPto094\
+ Node-kind: dir
+ Node-action: add
+ Node-copyfrom-rev: 1
+ Node-copyfrom-path: trunk
+
+ Node-kind: dir
+ Node-action: add
+ Prop-content-length: 34
+ Content-length: 34
+
+ K 13
+ svn:mergeinfo
+ V 0
+
+ PROPS-END
+ EOF
+ } >branch.dump &&
+ try_dump branch.dump &&
+
+ git ls-tree -r --name-only HEAD |
+ sort >actual.branch-files &&
+ test_cmp expect.branch-files actual.branch-files
+'
+
+test_expect_success PIPE 'node without action' '
+ reinit_git &&
cat >inaction.dump <<-\EOF &&
SVN-fs-dump-format-version: 3
@@ -269,10 +388,11 @@ test_expect_success 'node without action' '
PROPS-END
EOF
- test_must_fail test-svn-fe inaction.dump
+ try_dump inaction.dump must_fail
'
-test_expect_success 'action: add node without text' '
+test_expect_success PIPE 'action: add node without text' '
+ reinit_git &&
cat >textless.dump <<-\EOF &&
SVN-fs-dump-format-version: 3
@@ -290,10 +410,10 @@ test_expect_success 'action: add node without text' '
PROPS-END
EOF
- test_must_fail test-svn-fe textless.dump
+ try_dump textless.dump must_fail
'
-test_expect_failure 'change file mode but keep old content' '
+test_expect_failure PIPE 'change file mode but keep old content' '
reinit_git &&
cat >expect <<-\EOF &&
OBJID
@@ -356,8 +476,7 @@ test_expect_failure 'change file mode but keep old content' '
PROPS-END
EOF
- test-svn-fe filemode.dump >stream &&
- git fast-import <stream &&
+ try_dump filemode.dump &&
{
git rev-list HEAD |
git diff-tree --root --stdin |
@@ -370,7 +489,7 @@ test_expect_failure 'change file mode but keep old content' '
test_cmp hello actual.target
'
-test_expect_success 'NUL in property value' '
+test_expect_success PIPE 'NUL in property value' '
reinit_git &&
echo "commit message" >expect.message &&
{
@@ -391,13 +510,12 @@ test_expect_success 'NUL in property value' '
echo &&
cat props
} >nulprop.dump &&
- test-svn-fe nulprop.dump >stream &&
- git fast-import <stream &&
+ try_dump nulprop.dump &&
git diff-tree --always -s --format=%s HEAD >actual.message &&
test_cmp expect.message actual.message
'
-test_expect_success 'NUL in log message, file content, and property name' '
+test_expect_success PIPE 'NUL in log message, file content, and property name' '
# Caveat: svnadmin 1.6.16 (r1073529) truncates at \0 in the
# svn:specialQnotreally example.
reinit_git &&
@@ -458,8 +576,7 @@ test_expect_success 'NUL in log message, file content, and property name' '
link hello
EOF
} >8bitclean.dump &&
- test-svn-fe 8bitclean.dump >stream &&
- git fast-import <stream &&
+ try_dump 8bitclean.dump &&
{
git rev-list HEAD |
git diff-tree --root --stdin |
@@ -478,7 +595,7 @@ test_expect_success 'NUL in log message, file content, and property name' '
test_cmp expect.hello2 actual.hello2
'
-test_expect_success 'change file mode and reiterate content' '
+test_expect_success PIPE 'change file mode and reiterate content' '
reinit_git &&
cat >expect <<-\EOF &&
OBJID
@@ -490,7 +607,7 @@ test_expect_success 'change file mode and reiterate content' '
EOF
echo "link hello" >expect.blob &&
echo hello >hello &&
- cat >filemode.dump <<-\EOF &&
+ cat >filemode2.dump <<-\EOF &&
SVN-fs-dump-format-version: 3
Revision-number: 1
@@ -545,8 +662,7 @@ test_expect_success 'change file mode and reiterate content' '
PROPS-END
link hello
EOF
- test-svn-fe filemode.dump >stream &&
- git fast-import <stream &&
+ try_dump filemode2.dump &&
{
git rev-list HEAD |
git diff-tree --root --stdin |
@@ -559,7 +675,8 @@ test_expect_success 'change file mode and reiterate content' '
test_cmp hello actual.target
'
-test_expect_success 'deltas not supported' '
+test_expect_success PIPE 'deltas supported' '
+ reinit_git &&
{
# (old) h + (inline) ello + (old) \n
printf "SVNQ%b%b%s" "Q\003\006\005\004" "\001Q\0204\001\002" "ello" |
@@ -619,10 +736,10 @@ test_expect_success 'deltas not supported' '
echo PROPS-END &&
cat delta
} >delta.dump &&
- test_must_fail test-svn-fe delta.dump
+ try_dump delta.dump
'
-test_expect_success 'property deltas supported' '
+test_expect_success PIPE 'property deltas supported' '
reinit_git &&
cat >expect <<-\EOF &&
OBJID
@@ -678,8 +795,7 @@ test_expect_success 'property deltas supported' '
PROPS-END
EOF
} >propdelta.dump &&
- test-svn-fe propdelta.dump >stream &&
- git fast-import <stream &&
+ try_dump propdelta.dump &&
{
git rev-list HEAD |
git diff-tree --stdin |
@@ -688,7 +804,7 @@ test_expect_success 'property deltas supported' '
test_cmp expect actual
'
-test_expect_success 'properties on /' '
+test_expect_success PIPE 'properties on /' '
reinit_git &&
cat <<-\EOF >expect &&
OBJID
@@ -733,8 +849,7 @@ test_expect_success 'properties on /' '
PROPS-END
EOF
- test-svn-fe changeroot.dump >stream &&
- git fast-import <stream &&
+ try_dump changeroot.dump &&
{
git rev-list HEAD |
git diff-tree --root --always --stdin |
@@ -743,7 +858,7 @@ test_expect_success 'properties on /' '
test_cmp expect actual
'
-test_expect_success 'deltas for typechange' '
+test_expect_success PIPE 'deltas for typechange' '
reinit_git &&
cat >expect <<-\EOF &&
OBJID
@@ -819,8 +934,7 @@ test_expect_success 'deltas for typechange' '
PROPS-END
link testing 321
EOF
- test-svn-fe deleteprop.dump >stream &&
- git fast-import <stream &&
+ try_dump deleteprop.dump &&
{
git rev-list HEAD |
git diff-tree --root --stdin |
@@ -829,6 +943,143 @@ test_expect_success 'deltas for typechange' '
test_cmp expect actual
'
+test_expect_success PIPE 'deltas need not consume the whole preimage' '
+ reinit_git &&
+ cat >expect <<-\EOF &&
+ OBJID
+ :120000 100644 OBJID OBJID T postimage
+ OBJID
+ :100644 120000 OBJID OBJID T postimage
+ OBJID
+ :000000 100644 OBJID OBJID A postimage
+ EOF
+ echo "first preimage" >expect.1 &&
+ printf target >expect.2 &&
+ printf lnk >expect.3 &&
+ {
+ printf "SVNQ%b%b%b" "QQ\017\001\017" "\0217" "first preimage\n" |
+ q_to_nul
+ } >delta.1 &&
+ {
+ properties svn:special "*" &&
+ echo PROPS-END
+ } >symlink.props &&
+ {
+ printf "SVNQ%b%b%b" "Q\002\013\004\012" "\0201\001\001\0211" "lnk target" |
+ q_to_nul
+ } >delta.2 &&
+ {
+ printf "SVNQ%b%b" "Q\004\003\004Q" "\001Q\002\002" |
+ q_to_nul
+ } >delta.3 &&
+ {
+ cat <<-\EOF &&
+ SVN-fs-dump-format-version: 3
+
+ Revision-number: 1
+ Prop-content-length: 10
+ Content-length: 10
+
+ PROPS-END
+
+ Node-path: postimage
+ Node-kind: file
+ Node-action: add
+ Text-delta: true
+ Prop-content-length: 10
+ EOF
+ echo Text-content-length: $(wc -c <delta.1) &&
+ echo Content-length: $((10 + $(wc -c <delta.1))) &&
+ echo &&
+ echo PROPS-END &&
+ cat delta.1 &&
+ cat <<-\EOF &&
+
+ Revision-number: 2
+ Prop-content-length: 10
+ Content-length: 10
+
+ PROPS-END
+
+ Node-path: postimage
+ Node-kind: file
+ Node-action: change
+ Text-delta: true
+ EOF
+ echo Prop-content-length: $(wc -c <symlink.props) &&
+ echo Text-content-length: $(wc -c <delta.2) &&
+ echo Content-length: $(($(wc -c <symlink.props) + $(wc -c <delta.2))) &&
+ echo &&
+ cat symlink.props &&
+ cat delta.2 &&
+ cat <<-\EOF &&
+
+ Revision-number: 3
+ Prop-content-length: 10
+ Content-length: 10
+
+ PROPS-END
+
+ Node-path: postimage
+ Node-kind: file
+ Node-action: change
+ Text-delta: true
+ Prop-content-length: 10
+ EOF
+ echo Text-content-length: $(wc -c <delta.3) &&
+ echo Content-length: $((10 + $(wc -c <delta.3))) &&
+ echo &&
+ echo PROPS-END &&
+ cat delta.3 &&
+ echo
+ } >deltapartial.dump &&
+ try_dump deltapartial.dump &&
+ {
+ git rev-list HEAD |
+ git diff-tree --root --stdin |
+ sed "s/$_x40/OBJID/g"
+ } >actual &&
+ test_cmp expect actual &&
+ git show HEAD:postimage >actual.3 &&
+ git show HEAD^:postimage >actual.2 &&
+ git show HEAD^^:postimage >actual.1 &&
+ test_cmp expect.1 actual.1 &&
+ test_cmp expect.2 actual.2 &&
+ test_cmp expect.3 actual.3
+'
+
+test_expect_success PIPE 'no hang for delta trying to read past end of preimage' '
+ reinit_git &&
+ {
+ # COPY 1
+ printf "SVNQ%b%b" "Q\001\001\002Q" "\001Q" |
+ q_to_nul
+ } >greedy.delta &&
+ {
+ cat <<-\EOF &&
+ SVN-fs-dump-format-version: 3
+
+ Revision-number: 1
+ Prop-content-length: 10
+ Content-length: 10
+
+ PROPS-END
+
+ Node-path: bootstrap
+ Node-kind: file
+ Node-action: add
+ Text-delta: true
+ Prop-content-length: 10
+ EOF
+ echo Text-content-length: $(wc -c <greedy.delta) &&
+ echo Content-length: $((10 + $(wc -c <greedy.delta))) &&
+ echo &&
+ echo PROPS-END &&
+ cat greedy.delta &&
+ echo
+ } >greedydelta.dump &&
+ try_dump greedydelta.dump must_fail might_fail
+'
test_expect_success 'set up svn repo' '
svnconf=$PWD/svnconf &&
@@ -844,12 +1095,12 @@ test_expect_success 'set up svn repo' '
fi
'
-test_expect_success SVNREPO 't9135/svn.dump' '
- git init simple-git &&
- test-svn-fe "$TEST_DIRECTORY/t9135/svn.dump" >simple.fe &&
+test_expect_success SVNREPO,PIPE 't9135/svn.dump' '
+ mkdir -p simple-git &&
(
cd simple-git &&
- git fast-import <../simple.fe
+ reinit_git &&
+ try_dump "$TEST_DIRECTORY/t9135/svn.dump"
) &&
(
cd simple-svnco &&
diff --git a/t/t9011-svn-da.sh b/t/t9011-svn-da.sh
new file mode 100755
index 0000000..b38d16f
--- /dev/null
+++ b/t/t9011-svn-da.sh
@@ -0,0 +1,248 @@
+#!/bin/sh
+
+test_description='test parsing of svndiff0 files
+
+Using the "test-svn-fe -d" helper, check that svn-fe correctly
+interprets deltas using various facilities (some from the spec,
+some only learned from practice).
+'
+. ./test-lib.sh
+
+>empty
+printf foo >preimage
+
+test_expect_success 'reject empty delta' '
+ test_must_fail test-svn-fe -d preimage empty 0
+'
+
+test_expect_success 'delta can empty file' '
+ printf "SVNQ" | q_to_nul >clear.delta &&
+ test-svn-fe -d preimage clear.delta 4 >actual &&
+ test_cmp empty actual
+'
+
+test_expect_success 'reject svndiff2' '
+ printf "SVN\002" >bad.filetype &&
+ test_must_fail test-svn-fe -d preimage bad.filetype 4
+'
+
+test_expect_success 'one-window empty delta' '
+ printf "SVNQ%s" "QQQQQ" | q_to_nul >clear.onewindow &&
+ test-svn-fe -d preimage clear.onewindow 9 >actual &&
+ test_cmp empty actual
+'
+
+test_expect_success 'reject incomplete window header' '
+ printf "SVNQ%s" "QQQQQ" | q_to_nul >clear.onewindow &&
+ printf "SVNQ%s" "QQ" | q_to_nul >clear.partialwindow &&
+ test_must_fail test-svn-fe -d preimage clear.onewindow 6 &&
+ test_must_fail test-svn-fe -d preimage clear.partialwindow 6
+'
+
+test_expect_success 'reject declared delta longer than actual delta' '
+ printf "SVNQ%s" "QQQQQ" | q_to_nul >clear.onewindow &&
+ printf "SVNQ%s" "QQ" | q_to_nul >clear.partialwindow &&
+ test_must_fail test-svn-fe -d preimage clear.onewindow 14 &&
+ test_must_fail test-svn-fe -d preimage clear.partialwindow 9
+'
+
+test_expect_success 'two-window empty delta' '
+ printf "SVNQ%s%s" "QQQQQ" "QQQQQ" | q_to_nul >clear.twowindow &&
+ test-svn-fe -d preimage clear.twowindow 14 >actual &&
+ test_must_fail test-svn-fe -d preimage clear.twowindow 13 &&
+ test_cmp empty actual
+'
+
+test_expect_success 'noisy zeroes' '
+ printf "SVNQ%s" \
+ "RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRQQQQQ" |
+ tr R "\200" |
+ q_to_nul >clear.noisy &&
+ len=$(wc -c <clear.noisy) &&
+ test-svn-fe -d preimage clear.noisy $len &&
+ test_cmp empty actual
+'
+
+test_expect_success 'reject variable-length int in magic' '
+ printf "SVNRQ" | tr R "\200" | q_to_nul >clear.badmagic &&
+ test_must_fail test-svn-fe -d preimage clear.badmagic 5
+'
+
+test_expect_success 'reject truncated integer' '
+ printf "SVNQ%s%s" "QQQQQ" "QQQQRRQ" |
+ tr R "\200" |
+ q_to_nul >clear.fullint &&
+ printf "SVNQ%s%s" "QQQQQ" "QQQQRR" |
+ tr RT "\201" |
+ q_to_nul >clear.partialint &&
+ test_must_fail test-svn-fe -d preimage clear.fullint 15 &&
+ test-svn-fe -d preimage clear.fullint 16 &&
+ test_must_fail test-svn-fe -d preimage clear.partialint 15
+'
+
+test_expect_success 'nonempty (but unused) preimage view' '
+ printf "SVNQ%b" "Q\003QQQ" | q_to_nul >clear.readpreimage &&
+ test-svn-fe -d preimage clear.readpreimage 9 >actual &&
+ test_cmp empty actual
+'
+
+test_expect_success 'preimage view: right endpoint cannot backtrack' '
+ printf "SVNQ%b%b" "Q\003QQQ" "Q\002QQQ" |
+ q_to_nul >clear.backtrack &&
+ test_must_fail test-svn-fe -d preimage clear.backtrack 14
+'
+
+test_expect_success 'preimage view: left endpoint can advance' '
+ printf "SVNQ%b%b" "Q\003QQQ" "\001\002QQQ" |
+ q_to_nul >clear.preshrink &&
+ printf "SVNQ%b%b" "Q\003QQQ" "\001\001QQQ" |
+ q_to_nul >clear.shrinkbacktrack &&
+ test-svn-fe -d preimage clear.preshrink 14 >actual &&
+ test_must_fail test-svn-fe -d preimage clear.shrinkbacktrack 14 &&
+ test_cmp empty actual
+'
+
+test_expect_success 'preimage view: offsets compared by value' '
+ printf "SVNQ%b%b" "\001\001QQQ" "\0200Q\003QQQ" |
+ q_to_nul >clear.noisybacktrack &&
+ printf "SVNQ%b%b" "\001\001QQQ" "\0200\001\002QQQ" |
+ q_to_nul >clear.noisyadvance &&
+ test_must_fail test-svn-fe -d preimage clear.noisybacktrack 15 &&
+ test-svn-fe -d preimage clear.noisyadvance 15 &&
+ test_cmp empty actual
+'
+
+test_expect_success 'preimage view: reject truncated preimage' '
+ printf "SVNQ%b" "\010QQQQ" | q_to_nul >clear.lateemptyread &&
+ printf "SVNQ%b" "\010\001QQQ" | q_to_nul >clear.latenonemptyread &&
+ printf "SVNQ%b" "\001\010QQQ" | q_to_nul >clear.longread &&
+ test_must_fail test-svn-fe -d preimage clear.lateemptyread 9 &&
+ test_must_fail test-svn-fe -d preimage clear.latenonemptyread 9 &&
+ test_must_fail test-svn-fe -d preimage clear.longread 9
+'
+
+test_expect_success 'forbid unconsumed inline data' '
+ printf "SVNQ%b%s%b%s" "QQQQ\003" "bar" "QQQQ\001" "x" |
+ q_to_nul >inline.clear &&
+ test_must_fail test-svn-fe -d preimage inline.clear 18 >actual
+'
+
+test_expect_success 'reject truncated inline data' '
+ printf "SVNQ%b%s" "QQQQ\003" "b" | q_to_nul >inline.trunc &&
+ test_must_fail test-svn-fe -d preimage inline.trunc 10
+'
+
+test_expect_success 'reject truncated inline data (after instruction section)' '
+ printf "SVNQ%b%b%s" "QQ\001\001\003" "\0201" "b" | q_to_nul >insn.trunc &&
+ test_must_fail test-svn-fe -d preimage insn.trunc 11
+'
+
+test_expect_success 'copyfrom_data' '
+ echo hi >expect &&
+ printf "SVNQ%b%b%b" "QQ\003\001\003" "\0203" "hi\n" | q_to_nul >copydat &&
+ test-svn-fe -d preimage copydat 13 >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'multiple copyfrom_data' '
+ echo hi >expect &&
+ printf "SVNQ%b%b%b%b%b" "QQ\003\002\003" "\0201\0202" "hi\n" \
+ "QQQ\002Q" "\0200Q" | q_to_nul >copy.multi &&
+ len=$(wc -c <copy.multi) &&
+ test-svn-fe -d preimage copy.multi $len >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'incomplete multiple insn' '
+ printf "SVNQ%b%b%b" "QQ\003\002\003" "\0203\0200" "hi\n" |
+ q_to_nul >copy.partial &&
+ len=$(wc -c <copy.partial) &&
+ test_must_fail test-svn-fe -d preimage copy.partial $len
+'
+
+test_expect_success 'catch attempt to copy missing data' '
+ printf "SVNQ%b%b%s%b%s" "QQ\002\002\001" "\0201\0201" "X" \
+ "QQQQ\002" "YZ" |
+ q_to_nul >copy.incomplete &&
+ len=$(wc -c <copy.incomplete) &&
+ test_must_fail test-svn-fe -d preimage copy.incomplete $len
+'
+
+test_expect_success 'copyfrom target to repeat data' '
+ printf foofoo >expect &&
+ printf "SVNQ%b%b%s" "QQ\006\004\003" "\0203\0100\003Q" "foo" |
+ q_to_nul >copytarget.repeat &&
+ len=$(wc -c <copytarget.repeat) &&
+ test-svn-fe -d preimage copytarget.repeat $len >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'copyfrom target out of order' '
+ printf foooof >expect &&
+ printf "SVNQ%b%b%s" \
+ "QQ\006\007\003" "\0203\0101\002\0101\001\0101Q" "foo" |
+ q_to_nul >copytarget.reverse &&
+ len=$(wc -c <copytarget.reverse) &&
+ test-svn-fe -d preimage copytarget.reverse $len >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'catch copyfrom future' '
+ printf "SVNQ%b%b%s" "QQ\004\004\003" "\0202\0101\002\0201" "XYZ" |
+ q_to_nul >copytarget.infuture &&
+ len=$(wc -c <copytarget.infuture) &&
+ test_must_fail test-svn-fe -d preimage copytarget.infuture $len
+'
+
+test_expect_success 'copy to sustain' '
+ printf XYXYXYXYXYXZ >expect &&
+ printf "SVNQ%b%b%s" "QQ\014\004\003" "\0202\0111Q\0201" "XYZ" |
+ q_to_nul >copytarget.sustain &&
+ len=$(wc -c <copytarget.sustain) &&
+ test-svn-fe -d preimage copytarget.sustain $len >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'catch copy that overflows' '
+ printf "SVNQ%b%b%s" "QQ\003\003\001" "\0201\0177Q" X |
+ q_to_nul >copytarget.overflow &&
+ len=$(wc -c <copytarget.overflow) &&
+ test_must_fail test-svn-fe -d preimage copytarget.overflow $len
+'
+
+test_expect_success 'copyfrom source' '
+ printf foo >expect &&
+ printf "SVNQ%b%b" "Q\003\003\002Q" "\003Q" | q_to_nul >copysource.all &&
+ test-svn-fe -d preimage copysource.all 11 >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'copy backwards' '
+ printf oof >expect &&
+ printf "SVNQ%b%b" "Q\003\003\006Q" "\001\002\001\001\001Q" |
+ q_to_nul >copysource.rev &&
+ test-svn-fe -d preimage copysource.rev 15 >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'offsets are relative to window' '
+ printf fo >expect &&
+ printf "SVNQ%b%b%b%b" "Q\003\001\002Q" "\001Q" \
+ "\002\001\001\002Q" "\001Q" |
+ q_to_nul >copysource.two &&
+ test-svn-fe -d preimage copysource.two 18 >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'example from notes/svndiff' '
+ printf aaaaccccdddddddd >expect &&
+ printf aaaabbbbcccc >source &&
+ printf "SVNQ%b%b%s" "Q\014\020\007\001" \
+ "\004Q\004\010\0201\0107\010" d |
+ q_to_nul >delta.example &&
+ len=$(wc -c <delta.example) &&
+ test-svn-fe -d source delta.example $len >actual &&
+ test_cmp expect actual
+'
+
+test_done