git/t/t0020-crlf.sh

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#!/bin/sh
test_description='CRLF conversion'
. ./test-lib.sh
has_cr() {
tr '\015' Q <"$1" | grep Q >/dev/null
}
test_expect_success setup '
git config core.autocrlf false &&
for w in Hello world how are you; do echo $w; done >one &&
mkdir dir &&
for w in I am very very fine thank you; do echo $w; done >dir/two &&
for w in Oh here is NULQin text here; do echo $w; done | q_to_nul >three &&
git add . &&
git commit -m initial &&
one=`git rev-parse HEAD:one` &&
dir=`git rev-parse HEAD:dir` &&
two=`git rev-parse HEAD:dir/two` &&
three=`git rev-parse HEAD:three` &&
for w in Some extra lines here; do echo $w; done >>one &&
git diff >patch.file &&
patched=`git hash-object --stdin <one` &&
git read-tree --reset -u HEAD &&
echo happy.
'
safecrlf: Add mechanism to warn about irreversible crlf conversions CRLF conversion bears a slight chance of corrupting data. autocrlf=true will convert CRLF to LF during commit and LF to CRLF during checkout. A file that contains a mixture of LF and CRLF before the commit cannot be recreated by git. For text files this is the right thing to do: it corrects line endings such that we have only LF line endings in the repository. But for binary files that are accidentally classified as text the conversion can corrupt data. If you recognize such corruption early you can easily fix it by setting the conversion type explicitly in .gitattributes. Right after committing you still have the original file in your work tree and this file is not yet corrupted. You can explicitly tell git that this file is binary and git will handle the file appropriately. Unfortunately, the desired effect of cleaning up text files with mixed line endings and the undesired effect of corrupting binary files cannot be distinguished. In both cases CRLFs are removed in an irreversible way. For text files this is the right thing to do because CRLFs are line endings, while for binary files converting CRLFs corrupts data. This patch adds a mechanism that can either warn the user about an irreversible conversion or can even refuse to convert. The mechanism is controlled by the variable core.safecrlf, with the following values: - false: disable safecrlf mechanism - warn: warn about irreversible conversions - true: refuse irreversible conversions The default is to warn. Users are only affected by this default if core.autocrlf is set. But the current default of git is to leave core.autocrlf unset, so users will not see warnings unless they deliberately chose to activate the autocrlf mechanism. The safecrlf mechanism's details depend on the git command. The general principles when safecrlf is active (not false) are: - we warn/error out if files in the work tree can modified in an irreversible way without giving the user a chance to backup the original file. - for read-only operations that do not modify files in the work tree we do not not print annoying warnings. There are exceptions. Even though... - "git add" itself does not touch the files in the work tree, the next checkout would, so the safety triggers; - "git apply" to update a text file with a patch does touch the files in the work tree, but the operation is about text files and CRLF conversion is about fixing the line ending inconsistencies, so the safety does not trigger; - "git diff" itself does not touch the files in the work tree, it is often run to inspect the changes you intend to next "git add". To catch potential problems early, safety triggers. The concept of a safety check was originally proposed in a similar way by Linus Torvalds. Thanks to Dimitry Potapov for insisting on getting the naked LF/autocrlf=true case right. Signed-off-by: Steffen Prohaska <prohaska@zib.de>
2008-02-06 14:25:58 +03:00
test_expect_success 'safecrlf: autocrlf=input, all CRLF' '
git config core.autocrlf input &&
git config core.safecrlf true &&
for w in I am all CRLF; do echo $w; done | append_cr >allcrlf &&
test_must_fail git add allcrlf
safecrlf: Add mechanism to warn about irreversible crlf conversions CRLF conversion bears a slight chance of corrupting data. autocrlf=true will convert CRLF to LF during commit and LF to CRLF during checkout. A file that contains a mixture of LF and CRLF before the commit cannot be recreated by git. For text files this is the right thing to do: it corrects line endings such that we have only LF line endings in the repository. But for binary files that are accidentally classified as text the conversion can corrupt data. If you recognize such corruption early you can easily fix it by setting the conversion type explicitly in .gitattributes. Right after committing you still have the original file in your work tree and this file is not yet corrupted. You can explicitly tell git that this file is binary and git will handle the file appropriately. Unfortunately, the desired effect of cleaning up text files with mixed line endings and the undesired effect of corrupting binary files cannot be distinguished. In both cases CRLFs are removed in an irreversible way. For text files this is the right thing to do because CRLFs are line endings, while for binary files converting CRLFs corrupts data. This patch adds a mechanism that can either warn the user about an irreversible conversion or can even refuse to convert. The mechanism is controlled by the variable core.safecrlf, with the following values: - false: disable safecrlf mechanism - warn: warn about irreversible conversions - true: refuse irreversible conversions The default is to warn. Users are only affected by this default if core.autocrlf is set. But the current default of git is to leave core.autocrlf unset, so users will not see warnings unless they deliberately chose to activate the autocrlf mechanism. The safecrlf mechanism's details depend on the git command. The general principles when safecrlf is active (not false) are: - we warn/error out if files in the work tree can modified in an irreversible way without giving the user a chance to backup the original file. - for read-only operations that do not modify files in the work tree we do not not print annoying warnings. There are exceptions. Even though... - "git add" itself does not touch the files in the work tree, the next checkout would, so the safety triggers; - "git apply" to update a text file with a patch does touch the files in the work tree, but the operation is about text files and CRLF conversion is about fixing the line ending inconsistencies, so the safety does not trigger; - "git diff" itself does not touch the files in the work tree, it is often run to inspect the changes you intend to next "git add". To catch potential problems early, safety triggers. The concept of a safety check was originally proposed in a similar way by Linus Torvalds. Thanks to Dimitry Potapov for insisting on getting the naked LF/autocrlf=true case right. Signed-off-by: Steffen Prohaska <prohaska@zib.de>
2008-02-06 14:25:58 +03:00
'
test_expect_success 'safecrlf: autocrlf=input, mixed LF/CRLF' '
git config core.autocrlf input &&
git config core.safecrlf true &&
for w in Oh here is CRLFQ in text; do echo $w; done | q_to_cr >mixed &&
test_must_fail git add mixed
safecrlf: Add mechanism to warn about irreversible crlf conversions CRLF conversion bears a slight chance of corrupting data. autocrlf=true will convert CRLF to LF during commit and LF to CRLF during checkout. A file that contains a mixture of LF and CRLF before the commit cannot be recreated by git. For text files this is the right thing to do: it corrects line endings such that we have only LF line endings in the repository. But for binary files that are accidentally classified as text the conversion can corrupt data. If you recognize such corruption early you can easily fix it by setting the conversion type explicitly in .gitattributes. Right after committing you still have the original file in your work tree and this file is not yet corrupted. You can explicitly tell git that this file is binary and git will handle the file appropriately. Unfortunately, the desired effect of cleaning up text files with mixed line endings and the undesired effect of corrupting binary files cannot be distinguished. In both cases CRLFs are removed in an irreversible way. For text files this is the right thing to do because CRLFs are line endings, while for binary files converting CRLFs corrupts data. This patch adds a mechanism that can either warn the user about an irreversible conversion or can even refuse to convert. The mechanism is controlled by the variable core.safecrlf, with the following values: - false: disable safecrlf mechanism - warn: warn about irreversible conversions - true: refuse irreversible conversions The default is to warn. Users are only affected by this default if core.autocrlf is set. But the current default of git is to leave core.autocrlf unset, so users will not see warnings unless they deliberately chose to activate the autocrlf mechanism. The safecrlf mechanism's details depend on the git command. The general principles when safecrlf is active (not false) are: - we warn/error out if files in the work tree can modified in an irreversible way without giving the user a chance to backup the original file. - for read-only operations that do not modify files in the work tree we do not not print annoying warnings. There are exceptions. Even though... - "git add" itself does not touch the files in the work tree, the next checkout would, so the safety triggers; - "git apply" to update a text file with a patch does touch the files in the work tree, but the operation is about text files and CRLF conversion is about fixing the line ending inconsistencies, so the safety does not trigger; - "git diff" itself does not touch the files in the work tree, it is often run to inspect the changes you intend to next "git add". To catch potential problems early, safety triggers. The concept of a safety check was originally proposed in a similar way by Linus Torvalds. Thanks to Dimitry Potapov for insisting on getting the naked LF/autocrlf=true case right. Signed-off-by: Steffen Prohaska <prohaska@zib.de>
2008-02-06 14:25:58 +03:00
'
test_expect_success 'safecrlf: autocrlf=true, all LF' '
git config core.autocrlf true &&
git config core.safecrlf true &&
for w in I am all LF; do echo $w; done >alllf &&
test_must_fail git add alllf
safecrlf: Add mechanism to warn about irreversible crlf conversions CRLF conversion bears a slight chance of corrupting data. autocrlf=true will convert CRLF to LF during commit and LF to CRLF during checkout. A file that contains a mixture of LF and CRLF before the commit cannot be recreated by git. For text files this is the right thing to do: it corrects line endings such that we have only LF line endings in the repository. But for binary files that are accidentally classified as text the conversion can corrupt data. If you recognize such corruption early you can easily fix it by setting the conversion type explicitly in .gitattributes. Right after committing you still have the original file in your work tree and this file is not yet corrupted. You can explicitly tell git that this file is binary and git will handle the file appropriately. Unfortunately, the desired effect of cleaning up text files with mixed line endings and the undesired effect of corrupting binary files cannot be distinguished. In both cases CRLFs are removed in an irreversible way. For text files this is the right thing to do because CRLFs are line endings, while for binary files converting CRLFs corrupts data. This patch adds a mechanism that can either warn the user about an irreversible conversion or can even refuse to convert. The mechanism is controlled by the variable core.safecrlf, with the following values: - false: disable safecrlf mechanism - warn: warn about irreversible conversions - true: refuse irreversible conversions The default is to warn. Users are only affected by this default if core.autocrlf is set. But the current default of git is to leave core.autocrlf unset, so users will not see warnings unless they deliberately chose to activate the autocrlf mechanism. The safecrlf mechanism's details depend on the git command. The general principles when safecrlf is active (not false) are: - we warn/error out if files in the work tree can modified in an irreversible way without giving the user a chance to backup the original file. - for read-only operations that do not modify files in the work tree we do not not print annoying warnings. There are exceptions. Even though... - "git add" itself does not touch the files in the work tree, the next checkout would, so the safety triggers; - "git apply" to update a text file with a patch does touch the files in the work tree, but the operation is about text files and CRLF conversion is about fixing the line ending inconsistencies, so the safety does not trigger; - "git diff" itself does not touch the files in the work tree, it is often run to inspect the changes you intend to next "git add". To catch potential problems early, safety triggers. The concept of a safety check was originally proposed in a similar way by Linus Torvalds. Thanks to Dimitry Potapov for insisting on getting the naked LF/autocrlf=true case right. Signed-off-by: Steffen Prohaska <prohaska@zib.de>
2008-02-06 14:25:58 +03:00
'
test_expect_success 'safecrlf: autocrlf=true mixed LF/CRLF' '
git config core.autocrlf true &&
git config core.safecrlf true &&
for w in Oh here is CRLFQ in text; do echo $w; done | q_to_cr >mixed &&
test_must_fail git add mixed
safecrlf: Add mechanism to warn about irreversible crlf conversions CRLF conversion bears a slight chance of corrupting data. autocrlf=true will convert CRLF to LF during commit and LF to CRLF during checkout. A file that contains a mixture of LF and CRLF before the commit cannot be recreated by git. For text files this is the right thing to do: it corrects line endings such that we have only LF line endings in the repository. But for binary files that are accidentally classified as text the conversion can corrupt data. If you recognize such corruption early you can easily fix it by setting the conversion type explicitly in .gitattributes. Right after committing you still have the original file in your work tree and this file is not yet corrupted. You can explicitly tell git that this file is binary and git will handle the file appropriately. Unfortunately, the desired effect of cleaning up text files with mixed line endings and the undesired effect of corrupting binary files cannot be distinguished. In both cases CRLFs are removed in an irreversible way. For text files this is the right thing to do because CRLFs are line endings, while for binary files converting CRLFs corrupts data. This patch adds a mechanism that can either warn the user about an irreversible conversion or can even refuse to convert. The mechanism is controlled by the variable core.safecrlf, with the following values: - false: disable safecrlf mechanism - warn: warn about irreversible conversions - true: refuse irreversible conversions The default is to warn. Users are only affected by this default if core.autocrlf is set. But the current default of git is to leave core.autocrlf unset, so users will not see warnings unless they deliberately chose to activate the autocrlf mechanism. The safecrlf mechanism's details depend on the git command. The general principles when safecrlf is active (not false) are: - we warn/error out if files in the work tree can modified in an irreversible way without giving the user a chance to backup the original file. - for read-only operations that do not modify files in the work tree we do not not print annoying warnings. There are exceptions. Even though... - "git add" itself does not touch the files in the work tree, the next checkout would, so the safety triggers; - "git apply" to update a text file with a patch does touch the files in the work tree, but the operation is about text files and CRLF conversion is about fixing the line ending inconsistencies, so the safety does not trigger; - "git diff" itself does not touch the files in the work tree, it is often run to inspect the changes you intend to next "git add". To catch potential problems early, safety triggers. The concept of a safety check was originally proposed in a similar way by Linus Torvalds. Thanks to Dimitry Potapov for insisting on getting the naked LF/autocrlf=true case right. Signed-off-by: Steffen Prohaska <prohaska@zib.de>
2008-02-06 14:25:58 +03:00
'
test_expect_success 'safecrlf: print warning only once' '
git config core.autocrlf input &&
git config core.safecrlf warn &&
for w in I am all LF; do echo $w; done >doublewarn &&
git add doublewarn &&
git commit -m "nowarn" &&
for w in Oh here is CRLFQ in text; do echo $w; done | q_to_cr >doublewarn &&
test $(git add doublewarn 2>&1 | grep "CRLF will be replaced by LF" | wc -l) = 1
'
test_expect_success 'switch off autocrlf, safecrlf, reset HEAD' '
git config core.autocrlf false &&
git config core.safecrlf false &&
git reset --hard HEAD^
'
test_expect_success 'update with autocrlf=input' '
rm -f tmp one dir/two three &&
git read-tree --reset -u HEAD &&
git config core.autocrlf input &&
for f in one dir/two
do
append_cr <$f >tmp && mv -f tmp $f &&
git update-index -- $f || {
echo Oops
false
break
}
done &&
differs=`git diff-index --cached HEAD` &&
test -z "$differs" || {
echo Oops "$differs"
false
}
'
test_expect_success 'update with autocrlf=true' '
rm -f tmp one dir/two three &&
git read-tree --reset -u HEAD &&
git config core.autocrlf true &&
for f in one dir/two
do
append_cr <$f >tmp && mv -f tmp $f &&
git update-index -- $f || {
echo "Oops $f"
false
break
}
done &&
differs=`git diff-index --cached HEAD` &&
test -z "$differs" || {
echo Oops "$differs"
false
}
'
test_expect_success 'checkout with autocrlf=true' '
rm -f tmp one dir/two three &&
git config core.autocrlf true &&
git read-tree --reset -u HEAD &&
for f in one dir/two
do
remove_cr <"$f" >tmp && mv -f tmp $f &&
git update-index -- $f || {
echo "Eh? $f"
false
break
}
done &&
test "$one" = `git hash-object --stdin <one` &&
test "$two" = `git hash-object --stdin <dir/two` &&
differs=`git diff-index --cached HEAD` &&
test -z "$differs" || {
echo Oops "$differs"
false
}
'
test_expect_success 'checkout with autocrlf=input' '
rm -f tmp one dir/two three &&
git config core.autocrlf input &&
git read-tree --reset -u HEAD &&
for f in one dir/two
do
if has_cr "$f"
then
echo "Eh? $f"
false
break
else
git update-index -- $f
fi
done &&
test "$one" = `git hash-object --stdin <one` &&
test "$two" = `git hash-object --stdin <dir/two` &&
differs=`git diff-index --cached HEAD` &&
test -z "$differs" || {
echo Oops "$differs"
false
}
'
test_expect_success 'apply patch (autocrlf=input)' '
rm -f tmp one dir/two three &&
git config core.autocrlf input &&
git read-tree --reset -u HEAD &&
git apply patch.file &&
test "$patched" = "`git hash-object --stdin <one`" || {
echo "Eh? apply without index"
false
}
'
test_expect_success 'apply patch --cached (autocrlf=input)' '
rm -f tmp one dir/two three &&
git config core.autocrlf input &&
git read-tree --reset -u HEAD &&
git apply --cached patch.file &&
test "$patched" = `git rev-parse :one` || {
echo "Eh? apply with --cached"
false
}
'
test_expect_success 'apply patch --index (autocrlf=input)' '
rm -f tmp one dir/two three &&
git config core.autocrlf input &&
git read-tree --reset -u HEAD &&
git apply --index patch.file &&
test "$patched" = `git rev-parse :one` &&
test "$patched" = `git hash-object --stdin <one` || {
echo "Eh? apply with --index"
false
}
'
test_expect_success 'apply patch (autocrlf=true)' '
rm -f tmp one dir/two three &&
git config core.autocrlf true &&
git read-tree --reset -u HEAD &&
git apply patch.file &&
test "$patched" = "`remove_cr <one | git hash-object --stdin`" || {
echo "Eh? apply without index"
false
}
'
test_expect_success 'apply patch --cached (autocrlf=true)' '
rm -f tmp one dir/two three &&
git config core.autocrlf true &&
git read-tree --reset -u HEAD &&
git apply --cached patch.file &&
test "$patched" = `git rev-parse :one` || {
echo "Eh? apply without index"
false
}
'
test_expect_success 'apply patch --index (autocrlf=true)' '
rm -f tmp one dir/two three &&
git config core.autocrlf true &&
git read-tree --reset -u HEAD &&
git apply --index patch.file &&
test "$patched" = `git rev-parse :one` &&
test "$patched" = "`remove_cr <one | git hash-object --stdin`" || {
echo "Eh? apply with --index"
false
}
'
test_expect_success '.gitattributes says two is binary' '
rm -f tmp one dir/two three &&
echo "two -crlf" >.gitattributes &&
git config core.autocrlf true &&
git read-tree --reset -u HEAD &&
if has_cr dir/two
then
echo "Huh?"
false
else
: happy
fi &&
if has_cr one
then
: happy
else
echo "Huh?"
false
fi &&
if has_cr three
then
echo "Huh?"
false
else
: happy
fi
'
test_expect_success '.gitattributes says two is input' '
rm -f tmp one dir/two three &&
echo "two crlf=input" >.gitattributes &&
git read-tree --reset -u HEAD &&
if has_cr dir/two
then
echo "Huh?"
false
else
: happy
fi
'
test_expect_success '.gitattributes says two and three are text' '
rm -f tmp one dir/two three &&
echo "t* crlf" >.gitattributes &&
git read-tree --reset -u HEAD &&
if has_cr dir/two
then
: happy
else
echo "Huh?"
false
fi &&
if has_cr three
then
: happy
else
echo "Huh?"
false
fi
'
test_expect_success 'in-tree .gitattributes (1)' '
echo "one -crlf" >>.gitattributes &&
git add .gitattributes &&
git commit -m "Add .gitattributes" &&
rm -rf tmp one dir .gitattributes patch.file three &&
git read-tree --reset -u HEAD &&
if has_cr one
then
echo "Eh? one should not have CRLF"
false
else
: happy
fi &&
has_cr three || {
echo "Eh? three should still have CRLF"
false
}
'
test_expect_success 'in-tree .gitattributes (2)' '
rm -rf tmp one dir .gitattributes patch.file three &&
git read-tree --reset HEAD &&
git checkout-index -f -q -u -a &&
if has_cr one
then
echo "Eh? one should not have CRLF"
false
else
: happy
fi &&
has_cr three || {
echo "Eh? three should still have CRLF"
false
}
'
test_expect_success 'in-tree .gitattributes (3)' '
rm -rf tmp one dir .gitattributes patch.file three &&
git read-tree --reset HEAD &&
git checkout-index -u .gitattributes &&
git checkout-index -u one dir/two three &&
if has_cr one
then
echo "Eh? one should not have CRLF"
false
else
: happy
fi &&
has_cr three || {
echo "Eh? three should still have CRLF"
false
}
'
test_expect_success 'in-tree .gitattributes (4)' '
rm -rf tmp one dir .gitattributes patch.file three &&
git read-tree --reset HEAD &&
git checkout-index -u one dir/two three &&
git checkout-index -u .gitattributes &&
if has_cr one
then
echo "Eh? one should not have CRLF"
false
else
: happy
fi &&
has_cr three || {
echo "Eh? three should still have CRLF"
false
}
'
test_expect_success 'checkout with existing .gitattributes' '
git config core.autocrlf true &&
git config --unset core.safecrlf &&
echo ".file2 -crlfQ" | q_to_cr >> .gitattributes &&
git add .gitattributes &&
git commit -m initial &&
echo ".file -crlfQ" | q_to_cr >> .gitattributes &&
echo "contents" > .file &&
git add .gitattributes .file &&
git commit -m second &&
git checkout master~1 &&
git checkout master &&
test "$(git diff-files --raw)" = ""
'
test_expect_success 'checkout when deleting .gitattributes' '
git rm .gitattributes &&
echo "contentsQ" | q_to_cr > .file2 &&
git add .file2 &&
git commit -m third &&
git checkout master~1 &&
git checkout master &&
has_cr .file2
'
test_expect_success 'invalid .gitattributes (must not crash)' '
echo "three +crlf" >>.gitattributes &&
git diff
'
autocrlf: Make it work also for un-normalized repositories Previously, autocrlf would only work well for normalized repositories. Any text files that contained CRLF in the repository would cause problems, and would be modified when handled with core.autocrlf set. Change autocrlf to not do any conversions to files that in the repository already contain a CR. git with autocrlf set will never create such a file, or change a LF only file to contain CRs, so the (new) assumption is that if a file contains a CR, it is intentional, and autocrlf should not change that. The following sequence should now always be a NOP even with autocrlf set (assuming a clean working directory): git checkout <something> touch * git add -A . (will add nothing) git commit (nothing to commit) Previously this would break for any text file containing a CR. Some of you may have been folowing Eyvind's excellent thread about trying to make end-of-line translation in git a bit smoother. I decided to attack the problem from a different angle: Is it possible to make autocrlf behave non-destructively for all the previous problem cases? Stealing the problem from Eyvind's initial mail (paraphrased and summarized a bit): 1. Setting autocrlf globally is a pain since autocrlf does not work well with CRLF in the repo 2. Setting it in individual repos is hard since you do it "too late" (the clone will get it wrong) 3. If someone checks in a file with CRLF later, you get into problems again 4. If a repository once has contained CRLF, you can't tell autocrlf at which commit everything is sane again 5. autocrlf does needless work if you know that all your users want the same EOL style. I belive that this patch makes autocrlf a safe (and good) default setting for Windows, and this solves problems 1-4 (it solves 2 by being set by default, which is early enough for clone). I implemented it by looking for CR charactes in the index, and aborting any conversion attempt if this is found. Signed-off-by: Finn Arne Gangstad <finag@pvv.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-05-12 02:37:57 +04:00
# Some more tests here to add new autocrlf functionality.
# We want to have a known state here, so start a bit from scratch
test_expect_success 'setting up for new autocrlf tests' '
git config core.autocrlf false &&
git config core.safecrlf false &&
rm -rf .????* * &&
for w in I am all LF; do echo $w; done >alllf &&
for w in Oh here is CRLFQ in text; do echo $w; done | q_to_cr >mixed &&
for w in I am all CRLF; do echo $w; done | append_cr >allcrlf &&
git add -A . &&
git commit -m "alllf, allcrlf and mixed only" &&
git tag -a -m "message" autocrlf-checkpoint
'
test_expect_success 'report no change after setting autocrlf' '
git config core.autocrlf true &&
touch * &&
git diff --exit-code
'
test_expect_success 'files are clean after checkout' '
rm * &&
git checkout -f &&
git diff --exit-code
'
cr_to_Q_no_NL () {
tr '\015' Q | tr -d '\012'
}
test_expect_success 'LF only file gets CRLF with autocrlf' '
test "$(cr_to_Q_no_NL < alllf)" = "IQamQallQLFQ"
'
test_expect_success 'Mixed file is still mixed with autocrlf' '
test "$(cr_to_Q_no_NL < mixed)" = "OhhereisCRLFQintext"
'
test_expect_success 'CRLF only file has CRLF with autocrlf' '
test "$(cr_to_Q_no_NL < allcrlf)" = "IQamQallQCRLFQ"
'
test_expect_success 'New CRLF file gets LF in repo' '
tr -d "\015" < alllf | append_cr > alllf2 &&
git add alllf2 &&
git commit -m "alllf2 added" &&
git config core.autocrlf false &&
rm * &&
git checkout -f &&
test_cmp alllf alllf2
'
test_done