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contrib/subtree: Clean and refactor test code
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Mostly prepare for the later tests refactoring.  This moves some
common code to helper functions and generally cleans things up to be
more presentable.

Signed-off-by: Techlive Zheng <techlivezheng@gmail.com>
Signed-off-by: David A. Greene <greened@obbligato.org>
Signed-off-by: Jeff King <peff@peff.net>
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Techlive Zheng authored and Jeff King committed Nov 13, 2015
1 parent f34be46 commit b0638aa
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Showing 2 changed files with 79 additions and 55 deletions.
31 changes: 24 additions & 7 deletions contrib/subtree/t/Makefile
Original file line number Diff line number Diff line change
Expand Up @@ -13,11 +13,23 @@ TAR ?= $(TAR)
RM ?= rm -f
PROVE ?= prove
DEFAULT_TEST_TARGET ?= test
TEST_LINT ?= test-lint

ifdef TEST_OUTPUT_DIRECTORY
TEST_RESULTS_DIRECTORY = $(TEST_OUTPUT_DIRECTORY)/test-results
else
TEST_RESULTS_DIRECTORY = ../../../t/test-results
endif

# Shell quote;
SHELL_PATH_SQ = $(subst ','\'',$(SHELL_PATH))
PERL_PATH_SQ = $(subst ','\'',$(PERL_PATH))
TEST_RESULTS_DIRECTORY_SQ = $(subst ','\'',$(TEST_RESULTS_DIRECTORY))

T = $(wildcard t[0-9][0-9][0-9][0-9]-*.sh)
T = $(sort $(wildcard t[0-9][0-9][0-9][0-9]-*.sh))
TSVN = $(sort $(wildcard t91[0-9][0-9]-*.sh))
TGITWEB = $(sort $(wildcard t95[0-9][0-9]-*.sh))
THELPERS = $(sort $(filter-out $(T),$(wildcard *.sh)))

all: $(DEFAULT_TEST_TARGET)

Expand All @@ -26,20 +38,22 @@ test: pre-clean $(TEST_LINT)

prove: pre-clean $(TEST_LINT)
@echo "*** prove ***"; GIT_CONFIG=.git/config $(PROVE) --exec '$(SHELL_PATH_SQ)' $(GIT_PROVE_OPTS) $(T) :: $(GIT_TEST_OPTS)
$(MAKE) clean
$(MAKE) clean-except-prove-cache

$(T):
@echo "*** $@ ***"; GIT_CONFIG=.git/config '$(SHELL_PATH_SQ)' $@ $(GIT_TEST_OPTS)

pre-clean:
$(RM) -r test-results
$(RM) -r '$(TEST_RESULTS_DIRECTORY_SQ)'

clean:
$(RM) -r 'trash directory'.* test-results
clean-except-prove-cache:
$(RM) -r 'trash directory'.* '$(TEST_RESULTS_DIRECTORY_SQ)'
$(RM) -r valgrind/bin

clean: clean-except-prove-cache
$(RM) .prove

test-lint: test-lint-duplicates test-lint-executable
test-lint: test-lint-duplicates test-lint-executable test-lint-shell-syntax

test-lint-duplicates:
@dups=`echo $(T) | tr ' ' '\n' | sed 's/-.*//' | sort | uniq -d` && \
Expand All @@ -51,12 +65,15 @@ test-lint-executable:
test -z "$$bad" || { \
echo >&2 "non-executable tests:" $$bad; exit 1; }

test-lint-shell-syntax:
@'$(PERL_PATH_SQ)' ../../../t/check-non-portable-shell.pl $(T) $(THELPERS)

aggregate-results-and-cleanup: $(T)
$(MAKE) aggregate-results
$(MAKE) clean

aggregate-results:
for f in ../../../t/test-results/t*-*.counts; do \
for f in '$(TEST_RESULTS_DIRECTORY_SQ)'/t*-*.counts; do \
echo "$$f"; \
done | '$(SHELL_PATH_SQ)' ../../../t/aggregate-results.sh

Expand Down
103 changes: 55 additions & 48 deletions contrib/subtree/t/t7900-subtree.sh
Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,7 @@
#
test_description='Basic porcelain support for subtrees
This test verifies the basic operation of the merge, pull, add
This test verifies the basic operation of the add, pull, merge
and split subcommands of git subtree.
'

Expand All @@ -20,7 +20,6 @@ create()
git add "$1"
}


check_equal()
{
test_debug 'echo'
Expand All @@ -38,6 +37,30 @@ undo()
git reset --hard HEAD~
}

# Make sure no patch changes more than one file.
# The original set of commits changed only one file each.
# A multi-file change would imply that we pruned commits
# too aggressively.
join_commits()
{
commit=
all=
while read x y; do
if [ -z "$x" ]; then
continue
elif [ "$x" = "commit:" ]; then
if [ -n "$commit" ]; then
echo "$commit $all"
all=
fi
commit="$y"
else
all="$all $y"
fi
done
echo "$commit $all"
}

last_commit_message()
{
git log --pretty=format:%s -1
Expand Down Expand Up @@ -123,9 +146,11 @@ test_expect_success 'add subproj to mainline' '
check_equal ''"$(last_commit_message)"'' "Add '"'sub dir/'"' from commit '"'"'''"$(git rev-parse sub1)"'''"'"'"
'

# this shouldn't actually do anything, since FETCH_HEAD is already a parent
test_expect_success 'merge fetched subproj' '
git merge -m "merge -s -ours" -s ours FETCH_HEAD
test_expect_success 'merge the added subproj again, should do nothing' '
# this shouldn not actually do anything, since FETCH_HEAD
# is already a parent
result=$(git merge -s ours -m "merge -s -ours" FETCH_HEAD) &&
check_equal "${result}" "Already up-to-date."
'

test_expect_success 'add main-sub5' '
Expand Down Expand Up @@ -167,7 +192,7 @@ test_expect_success 'merge new subproj history into subdir' '
undo
'

test_expect_success 'Check that prefix argument is required for split' '
test_expect_success 'split requires option --prefix' '
echo "You must provide the --prefix option." > expected &&
test_must_fail git subtree split > actual 2>&1 &&
test_debug "printf '"'"'expected: '"'"'" &&
Expand All @@ -178,15 +203,15 @@ test_expect_success 'Check that prefix argument is required for split' '
rm -f expected actual
'

test_expect_success 'Check that the <prefix> exists for a split' '
echo "'"'"'non-existent-directory'"'"'" does not exist\; use "'"'"'git subtree add'"'"'" > expected &&
test_expect_success 'split requires path given by option --prefix must exist' '
echo "'\''non-existent-directory'\'' does not exist; use '\''git subtree add'\''" > expected &&
test_must_fail git subtree split --prefix=non-existent-directory > actual 2>&1 &&
test_debug "printf '"'"'expected: '"'"'" &&
test_debug "cat expected" &&
test_debug "printf '"'"'actual: '"'"'" &&
test_debug "cat actual" &&
test_cmp expected actual
# rm -f expected actual
test_cmp expected actual &&
rm -f expected actual
'

test_expect_success 'check if --message works for split+rejoin' '
Expand Down Expand Up @@ -279,18 +304,22 @@ test_expect_success 'merge split into subproj' '

chkm="main4
main6"

chkms="main-sub10
main-sub5
main-sub7
main-sub8"

chkms_sub=$(cat <<TXT | sed 's,^,sub dir/,'
$chkms
TXT
)

chks="sub1
sub2
sub3
sub9"

chks_sub=$(cat <<TXT | sed 's,^,sub dir/,'
$chks
TXT
Expand All @@ -301,6 +330,7 @@ test_expect_success 'make sure exactly the right set of files ends up in the sub
check_equal "$subfiles" "$chkms
$chks"
'

test_expect_success 'make sure the subproj history *only* contains commits that affect the subdir' '
allchanges=''"$(git log --name-only --pretty=format:'"''"' | sort | sed "/^$/d")"'' &&
check_equal "$allchanges" "$chkms
Expand All @@ -324,26 +354,27 @@ $chks_sub"
'

test_expect_success 'make sure each filename changed exactly once in the entire history' '
# main-sub?? and /subdir/main-sub?? both change, because those are the
# changes that were split into their own history. And subdir/sub?? never
# main-sub?? and sub dir/main-sub?? both change, because those are the
# changes that were split into their own history. And sub dir/sub?? never
# change, since they were *only* changed in the subtree branch.
allchanges=''"$(git log --name-only --pretty=format:'"''"' | sort | sed "/^$/d")"'' &&
check_equal "$allchanges" ''"$(cat <<TXT | sort
expected=''"$(cat <<TXT | sort
$chkms
$chkm
$chks
$chkms_sub
TXT
)"''
)"'' &&
check_equal "$allchanges" "$expected"
'

test_expect_success 'make sure the --rejoin commits never make it into subproj' '
check_equal ''"$(git log --pretty=format:'"'%s'"' HEAD^2 | grep -i split)"'' ""
check_equal "$(git log --pretty=format:"%s" HEAD^2 | grep -i split)" ""
'

test_expect_success 'make sure no "git subtree" tagged commits make it into subproj' '
# They are meaningless to subproj since one side of the merge refers to the mainline
check_equal ''"$(git log --pretty=format:'"'%s%n%b'"' HEAD^2 | grep "git-subtree.*:")"'' ""
check_equal "$(git log --pretty=format:"%s%n%b" HEAD^2 | grep "git-subtree.*:")" ""
'

# prepare second pair of repositories
Expand Down Expand Up @@ -408,13 +439,13 @@ test_expect_success 'split for main-sub4 without --onto' '
git subtree split --prefix "sub dir" --branch mainsub4
'

# at this point, the new commit parent should be sub3 if it is not,
# At this point, the new commit parent should be sub3. If it is not,
# something went wrong (the "newparent" of "master~" commit should
# have been sub3, but it was not, because its cache was not set to
# itself)
# itself).

test_expect_success 'check that the commit parent is sub3' '
check_equal ''"$(git log --pretty=format:%P -1 mainsub4)"'' ''"$(git rev-parse sub3)"''
check_equal "$(git log --pretty=format:%P -1 mainsub4)" "$(git rev-parse sub3)"
'

test_expect_success 'add main-sub5' '
Expand All @@ -431,52 +462,28 @@ test_expect_success 'split for main-sub5 without --onto' '
check_equal ''"$(git log --pretty=format:%P -1 mainsub5)"'' ""
'

# make sure no patch changes more than one file. The original set of commits
# changed only one file each. A multi-file change would imply that we pruned
# commits too aggressively.
joincommits()
{
commit=
all=
while read x y; do
#echo "{$x}" >&2
if [ -z "$x" ]; then
continue
elif [ "$x" = "commit:" ]; then
if [ -n "$commit" ]; then
echo "$commit $all"
all=
fi
commit="$y"
else
all="$all $y"
fi
done
echo "$commit $all"
}

test_expect_success 'verify one file change per commit' '
x= &&
list=''"$(git log --pretty=format:'"'commit: %H'"' | joincommits)"'' &&
list=''"$(git log --pretty=format:'"'commit: %H'"' | join_commits)"'' &&
# test_debug "echo HERE" &&
# test_debug "echo ''"$list"''" &&
(git log --pretty=format:'"'commit: %H'"' | joincommits |
git log --pretty=format:'"'commit: %H'"' | join_commits |
( while read commit a b; do
test_debug "echo Verifying commit "''"$commit"''
test_debug "echo a: "''"$a"''
test_debug "echo b: "''"$b"''
check_equal "$b" ""
x=1
done
check_equal "$x" 1
))
check_equal "$x" "1"
)
'

# test push

cd ../..

mkdir test-push
mkdir -p test-push

cd test-push

Expand Down

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