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Diffstat (limited to 't/t6030-bisect-porcelain.sh')
| -rwxr-xr-x | t/t6030-bisect-porcelain.sh | 746 |
1 files changed, 746 insertions, 0 deletions
diff --git a/t/t6030-bisect-porcelain.sh b/t/t6030-bisect-porcelain.sh new file mode 100755 index 0000000000..c6f1f9f8ab --- /dev/null +++ b/t/t6030-bisect-porcelain.sh @@ -0,0 +1,746 @@ +#!/bin/sh +# +# Copyright (c) 2007 Christian Couder +# +test_description='Tests git bisect functionality' + +exec </dev/null + +. ./test-lib.sh + +add_line_into_file() +{ + _line=$1 + _file=$2 + + if [ -f "$_file" ]; then + echo "$_line" >> $_file || return $? + MSG="Add <$_line> into <$_file>." + else + echo "$_line" > $_file || return $? + git add $_file || return $? + MSG="Create file <$_file> with <$_line> inside." + fi + + test_tick + git commit --quiet -m "$MSG" $_file +} + +HASH1= +HASH2= +HASH3= +HASH4= + +test_expect_success 'set up basic repo with 1 file (hello) and 4 commits' ' + add_line_into_file "1: Hello World" hello && + HASH1=$(git rev-parse --verify HEAD) && + add_line_into_file "2: A new day for git" hello && + HASH2=$(git rev-parse --verify HEAD) && + add_line_into_file "3: Another new day for git" hello && + HASH3=$(git rev-parse --verify HEAD) && + add_line_into_file "4: Ciao for now" hello && + HASH4=$(git rev-parse --verify HEAD) +' + +test_expect_success 'bisect starts with only one bad' ' + git bisect reset && + git bisect start && + git bisect bad $HASH4 && + git bisect next +' + +test_expect_success 'bisect does not start with only one good' ' + git bisect reset && + git bisect start && + git bisect good $HASH1 || return 1 + + if git bisect next + then + echo Oops, should have failed. + false + else + : + fi +' + +test_expect_success 'bisect start with one bad and good' ' + git bisect reset && + git bisect start && + git bisect good $HASH1 && + git bisect bad $HASH4 && + git bisect next +' + +test_expect_success 'bisect fails if given any junk instead of revs' ' + git bisect reset && + test_must_fail git bisect start foo $HASH1 -- && + test_must_fail git bisect start $HASH4 $HASH1 bar -- && + test -z "$(git for-each-ref "refs/bisect/*")" && + test -z "$(ls .git/BISECT_* 2>/dev/null)" && + git bisect start && + test_must_fail git bisect good foo $HASH1 && + test_must_fail git bisect good $HASH1 bar && + test_must_fail git bisect bad frotz && + test_must_fail git bisect bad $HASH3 $HASH4 && + test_must_fail git bisect skip bar $HASH3 && + test_must_fail git bisect skip $HASH1 foo && + test -z "$(git for-each-ref "refs/bisect/*")" && + git bisect good $HASH1 && + git bisect bad $HASH4 +' + +test_expect_success 'bisect reset: back in the master branch' ' + git bisect reset && + echo "* master" > branch.expect && + git branch > branch.output && + cmp branch.expect branch.output +' + +test_expect_success 'bisect reset: back in another branch' ' + git checkout -b other && + git bisect start && + git bisect good $HASH1 && + git bisect bad $HASH3 && + git bisect reset && + echo " master" > branch.expect && + echo "* other" >> branch.expect && + git branch > branch.output && + cmp branch.expect branch.output +' + +test_expect_success 'bisect reset when not bisecting' ' + git bisect reset && + git branch > branch.output && + cmp branch.expect branch.output +' + +test_expect_success 'bisect reset removes packed refs' ' + git bisect reset && + git bisect start && + git bisect good $HASH1 && + git bisect bad $HASH3 && + git pack-refs --all --prune && + git bisect next && + git bisect reset && + test -z "$(git for-each-ref "refs/bisect/*")" && + test -z "$(git for-each-ref "refs/heads/bisect")" +' + +test_expect_success 'bisect reset removes bisect state after --no-checkout' ' + git bisect reset && + git bisect start --no-checkout && + git bisect good $HASH1 && + git bisect bad $HASH3 && + git bisect next && + git bisect reset && + test -z "$(git for-each-ref "refs/bisect/*")" && + test -z "$(git for-each-ref "refs/heads/bisect")" && + test -z "$(git for-each-ref "BISECT_HEAD")" +' + +test_expect_success 'bisect start: back in good branch' ' + git branch > branch.output && + grep "* other" branch.output > /dev/null && + git bisect start $HASH4 $HASH1 -- && + git bisect good && + git bisect start $HASH4 $HASH1 -- && + git bisect bad && + git bisect reset && + git branch > branch.output && + grep "* other" branch.output > /dev/null +' + +test_expect_success 'bisect start: no ".git/BISECT_START" created if junk rev' ' + git bisect reset && + test_must_fail git bisect start $HASH4 foo -- && + git branch > branch.output && + grep "* other" branch.output > /dev/null && + test_must_fail test -e .git/BISECT_START +' + +test_expect_success 'bisect start: existing ".git/BISECT_START" not modified if junk rev' ' + git bisect start $HASH4 $HASH1 -- && + git bisect good && + cp .git/BISECT_START saved && + test_must_fail git bisect start $HASH4 foo -- && + git branch > branch.output && + grep "* (no branch)" branch.output > /dev/null && + test_cmp saved .git/BISECT_START +' +test_expect_success 'bisect start: no ".git/BISECT_START" if mistaken rev' ' + git bisect start $HASH4 $HASH1 -- && + git bisect good && + test_must_fail git bisect start $HASH1 $HASH4 -- && + git branch > branch.output && + grep "* other" branch.output > /dev/null && + test_must_fail test -e .git/BISECT_START +' + +test_expect_success 'bisect start: no ".git/BISECT_START" if checkout error' ' + echo "temp stuff" > hello && + test_must_fail git bisect start $HASH4 $HASH1 -- && + git branch && + git branch > branch.output && + grep "* other" branch.output > /dev/null && + test_must_fail test -e .git/BISECT_START && + test -z "$(git for-each-ref "refs/bisect/*")" && + git checkout HEAD hello +' + +# $HASH1 is good, $HASH4 is bad, we skip $HASH3 +# but $HASH2 is bad, +# so we should find $HASH2 as the first bad commit +test_expect_success 'bisect skip: successfull result' ' + git bisect reset && + git bisect start $HASH4 $HASH1 && + git bisect skip && + git bisect bad > my_bisect_log.txt && + grep "$HASH2 is the first bad commit" my_bisect_log.txt && + git bisect reset +' + +# $HASH1 is good, $HASH4 is bad, we skip $HASH3 and $HASH2 +# so we should not be able to tell the first bad commit +# among $HASH2, $HASH3 and $HASH4 +test_expect_success 'bisect skip: cannot tell between 3 commits' ' + git bisect start $HASH4 $HASH1 && + git bisect skip || return 1 + + if git bisect skip > my_bisect_log.txt + then + echo Oops, should have failed. + false + else + test $? -eq 2 && + grep "first bad commit could be any of" my_bisect_log.txt && + ! grep $HASH1 my_bisect_log.txt && + grep $HASH2 my_bisect_log.txt && + grep $HASH3 my_bisect_log.txt && + grep $HASH4 my_bisect_log.txt && + git bisect reset + fi +' + +# $HASH1 is good, $HASH4 is bad, we skip $HASH3 +# but $HASH2 is good, +# so we should not be able to tell the first bad commit +# among $HASH3 and $HASH4 +test_expect_success 'bisect skip: cannot tell between 2 commits' ' + git bisect start $HASH4 $HASH1 && + git bisect skip || return 1 + + if git bisect good > my_bisect_log.txt + then + echo Oops, should have failed. + false + else + test $? -eq 2 && + grep "first bad commit could be any of" my_bisect_log.txt && + ! grep $HASH1 my_bisect_log.txt && + ! grep $HASH2 my_bisect_log.txt && + grep $HASH3 my_bisect_log.txt && + grep $HASH4 my_bisect_log.txt && + git bisect reset + fi +' + +# $HASH1 is good, $HASH4 is both skipped and bad, we skip $HASH3 +# and $HASH2 is good, +# so we should not be able to tell the first bad commit +# among $HASH3 and $HASH4 +test_expect_success 'bisect skip: with commit both bad and skipped' ' + git bisect start && + git bisect skip && + git bisect bad && + git bisect good $HASH1 && + git bisect skip && + if git bisect good > my_bisect_log.txt + then + echo Oops, should have failed. + false + else + test $? -eq 2 && + grep "first bad commit could be any of" my_bisect_log.txt && + ! grep $HASH1 my_bisect_log.txt && + ! grep $HASH2 my_bisect_log.txt && + grep $HASH3 my_bisect_log.txt && + grep $HASH4 my_bisect_log.txt && + git bisect reset + fi +' + +# We want to automatically find the commit that +# introduced "Another" into hello. +test_expect_success \ + '"git bisect run" simple case' \ + 'echo "#"\!"/bin/sh" > test_script.sh && + echo "grep Another hello > /dev/null" >> test_script.sh && + echo "test \$? -ne 0" >> test_script.sh && + chmod +x test_script.sh && + git bisect start && + git bisect good $HASH1 && + git bisect bad $HASH4 && + git bisect run ./test_script.sh > my_bisect_log.txt && + grep "$HASH3 is the first bad commit" my_bisect_log.txt && + git bisect reset' + +# We want to automatically find the commit that +# introduced "Ciao" into hello. +test_expect_success \ + '"git bisect run" with more complex "git bisect start"' \ + 'echo "#"\!"/bin/sh" > test_script.sh && + echo "grep Ciao hello > /dev/null" >> test_script.sh && + echo "test \$? -ne 0" >> test_script.sh && + chmod +x test_script.sh && + git bisect start $HASH4 $HASH1 && + git bisect run ./test_script.sh > my_bisect_log.txt && + grep "$HASH4 is the first bad commit" my_bisect_log.txt && + git bisect reset' + +# $HASH1 is good, $HASH5 is bad, we skip $HASH3 +# but $HASH4 is good, +# so we should find $HASH5 as the first bad commit +HASH5= +test_expect_success 'bisect skip: add line and then a new test' ' + add_line_into_file "5: Another new line." hello && + HASH5=$(git rev-parse --verify HEAD) && + git bisect start $HASH5 $HASH1 && + git bisect skip && + git bisect good > my_bisect_log.txt && + grep "$HASH5 is the first bad commit" my_bisect_log.txt && + git bisect log > log_to_replay.txt && + git bisect reset +' + +test_expect_success 'bisect skip and bisect replay' ' + git bisect replay log_to_replay.txt > my_bisect_log.txt && + grep "$HASH5 is the first bad commit" my_bisect_log.txt && + git bisect reset +' + +HASH6= +test_expect_success 'bisect run & skip: cannot tell between 2' ' + add_line_into_file "6: Yet a line." hello && + HASH6=$(git rev-parse --verify HEAD) && + echo "#"\!"/bin/sh" > test_script.sh && + echo "sed -ne \\\$p hello | grep Ciao > /dev/null && exit 125" >> test_script.sh && + echo "grep line hello > /dev/null" >> test_script.sh && + echo "test \$? -ne 0" >> test_script.sh && + chmod +x test_script.sh && + git bisect start $HASH6 $HASH1 && + if git bisect run ./test_script.sh > my_bisect_log.txt + then + echo Oops, should have failed. + false + else + test $? -eq 2 && + grep "first bad commit could be any of" my_bisect_log.txt && + ! grep $HASH3 my_bisect_log.txt && + ! grep $HASH6 my_bisect_log.txt && + grep $HASH4 my_bisect_log.txt && + grep $HASH5 my_bisect_log.txt + fi +' + +HASH7= +test_expect_success 'bisect run & skip: find first bad' ' + git bisect reset && + add_line_into_file "7: Should be the last line." hello && + HASH7=$(git rev-parse --verify HEAD) && + echo "#"\!"/bin/sh" > test_script.sh && + echo "sed -ne \\\$p hello | grep Ciao > /dev/null && exit 125" >> test_script.sh && + echo "sed -ne \\\$p hello | grep day > /dev/null && exit 125" >> test_script.sh && + echo "grep Yet hello > /dev/null" >> test_script.sh && + echo "test \$? -ne 0" >> test_script.sh && + chmod +x test_script.sh && + git bisect start $HASH7 $HASH1 && + git bisect run ./test_script.sh > my_bisect_log.txt && + grep "$HASH6 is the first bad commit" my_bisect_log.txt +' + +test_expect_success 'bisect skip only one range' ' + git bisect reset && + git bisect start $HASH7 $HASH1 && + git bisect skip $HASH1..$HASH5 && + test "$HASH6" = "$(git rev-parse --verify HEAD)" && + test_must_fail git bisect bad > my_bisect_log.txt && + grep "first bad commit could be any of" my_bisect_log.txt +' + +test_expect_success 'bisect skip many ranges' ' + git bisect start $HASH7 $HASH1 && + test "$HASH4" = "$(git rev-parse --verify HEAD)" && + git bisect skip $HASH2 $HASH2.. ..$HASH5 && + test "$HASH6" = "$(git rev-parse --verify HEAD)" && + test_must_fail git bisect bad > my_bisect_log.txt && + grep "first bad commit could be any of" my_bisect_log.txt +' + +test_expect_success 'bisect starting with a detached HEAD' ' + git bisect reset && + git checkout master^ && + HEAD=$(git rev-parse --verify HEAD) && + git bisect start && + test $HEAD = $(cat .git/BISECT_START) && + git bisect reset && + test $HEAD = $(git rev-parse --verify HEAD) +' + +test_expect_success 'bisect errors out if bad and good are mistaken' ' + git bisect reset && + test_must_fail git bisect start $HASH2 $HASH4 2> rev_list_error && + grep "mistake good and bad" rev_list_error && + git bisect reset +' + +test_expect_success 'bisect does not create a "bisect" branch' ' + git bisect reset && + git bisect start $HASH7 $HASH1 && + git branch bisect && + rev_hash4=$(git rev-parse --verify HEAD) && + test "$rev_hash4" = "$HASH4" && + git branch -D bisect && + git bisect good && + git branch bisect && + rev_hash6=$(git rev-parse --verify HEAD) && + test "$rev_hash6" = "$HASH6" && + git bisect good > my_bisect_log.txt && + grep "$HASH7 is the first bad commit" my_bisect_log.txt && + git bisect reset && + rev_hash6=$(git rev-parse --verify bisect) && + test "$rev_hash6" = "$HASH6" && + git branch -D bisect +' + +# This creates a "side" branch to test "siblings" cases. +# +# H1-H2-H3-H4-H5-H6-H7 <--other +# \ +# S5-S6-S7 <--side +# +test_expect_success 'side branch creation' ' + git bisect reset && + git checkout -b side $HASH4 && + add_line_into_file "5(side): first line on a side branch" hello2 && + SIDE_HASH5=$(git rev-parse --verify HEAD) && + add_line_into_file "6(side): second line on a side branch" hello2 && + SIDE_HASH6=$(git rev-parse --verify HEAD) && + add_line_into_file "7(side): third line on a side branch" hello2 && + SIDE_HASH7=$(git rev-parse --verify HEAD) +' + +test_expect_success 'good merge base when good and bad are siblings' ' + git bisect start "$HASH7" "$SIDE_HASH7" > my_bisect_log.txt && + grep "merge base must be tested" my_bisect_log.txt && + grep $HASH4 my_bisect_log.txt && + git bisect good > my_bisect_log.txt && + test_must_fail grep "merge base must be tested" my_bisect_log.txt && + grep $HASH6 my_bisect_log.txt && + git bisect reset +' +test_expect_success 'skipped merge base when good and bad are siblings' ' + git bisect start "$SIDE_HASH7" "$HASH7" > my_bisect_log.txt && + grep "merge base must be tested" my_bisect_log.txt && + grep $HASH4 my_bisect_log.txt && + git bisect skip > my_bisect_log.txt 2>&1 && + grep "warning" my_bisect_log.txt && + grep $SIDE_HASH6 my_bisect_log.txt && + git bisect reset +' + +test_expect_success 'bad merge base when good and bad are siblings' ' + git bisect start "$HASH7" HEAD > my_bisect_log.txt && + grep "merge base must be tested" my_bisect_log.txt && + grep $HASH4 my_bisect_log.txt && + test_must_fail git bisect bad > my_bisect_log.txt 2>&1 && + grep "merge base $HASH4 is bad" my_bisect_log.txt && + grep "fixed between $HASH4 and \[$SIDE_HASH7\]" my_bisect_log.txt && + git bisect reset +' + +# This creates a few more commits (A and B) to test "siblings" cases +# when a good and a bad rev have many merge bases. +# +# We should have the following: +# +# H1-H2-H3-H4-H5-H6-H7 +# \ \ \ +# S5-A \ +# \ \ +# S6-S7----B +# +# And there A and B have 2 merge bases (S5 and H5) that should be +# reported by "git merge-base --all A B". +# +test_expect_success 'many merge bases creation' ' + git checkout "$SIDE_HASH5" && + git merge -m "merge HASH5 and SIDE_HASH5" "$HASH5" && + A_HASH=$(git rev-parse --verify HEAD) && + git checkout side && + git merge -m "merge HASH7 and SIDE_HASH7" "$HASH7" && + B_HASH=$(git rev-parse --verify HEAD) && + git merge-base --all "$A_HASH" "$B_HASH" > merge_bases.txt && + test $(wc -l < merge_bases.txt) = "2" && + grep "$HASH5" merge_bases.txt && + grep "$SIDE_HASH5" merge_bases.txt +' + +test_expect_success 'good merge bases when good and bad are siblings' ' + git bisect start "$B_HASH" "$A_HASH" > my_bisect_log.txt && + grep "merge base must be tested" my_bisect_log.txt && + git bisect good > my_bisect_log2.txt && + grep "merge base must be tested" my_bisect_log2.txt && + { + { + grep "$SIDE_HASH5" my_bisect_log.txt && + grep "$HASH5" my_bisect_log2.txt + } || { + grep "$SIDE_HASH5" my_bisect_log2.txt && + grep "$HASH5" my_bisect_log.txt + } + } && + git bisect reset +' + +test_expect_success 'optimized merge base checks' ' + git bisect start "$HASH7" "$SIDE_HASH7" > my_bisect_log.txt && + grep "merge base must be tested" my_bisect_log.txt && + grep "$HASH4" my_bisect_log.txt && + git bisect good > my_bisect_log2.txt && + test -f ".git/BISECT_ANCESTORS_OK" && + test "$HASH6" = $(git rev-parse --verify HEAD) && + git bisect bad > my_bisect_log3.txt && + git bisect good "$A_HASH" > my_bisect_log4.txt && + grep "merge base must be tested" my_bisect_log4.txt && + test_must_fail test -f ".git/BISECT_ANCESTORS_OK" +' + +# This creates another side branch called "parallel" with some files +# in some directories, to test bisecting with paths. +# +# We should have the following: +# +# P1-P2-P3-P4-P5-P6-P7 +# / / / +# H1-H2-H3-H4-H5-H6-H7 +# \ \ \ +# S5-A \ +# \ \ +# S6-S7----B +# +test_expect_success '"parallel" side branch creation' ' + git bisect reset && + git checkout -b parallel $HASH1 && + mkdir dir1 dir2 && + add_line_into_file "1(para): line 1 on parallel branch" dir1/file1 && + PARA_HASH1=$(git rev-parse --verify HEAD) && + add_line_into_file "2(para): line 2 on parallel branch" dir2/file2 && + PARA_HASH2=$(git rev-parse --verify HEAD) && + add_line_into_file "3(para): line 3 on parallel branch" dir2/file3 && + PARA_HASH3=$(git rev-parse --verify HEAD) && + git merge -m "merge HASH4 and PARA_HASH3" "$HASH4" && + PARA_HASH4=$(git rev-parse --verify HEAD) && + add_line_into_file "5(para): add line on parallel branch" dir1/file1 && + PARA_HASH5=$(git rev-parse --verify HEAD) && + add_line_into_file "6(para): add line on parallel branch" dir2/file2 && + PARA_HASH6=$(git rev-parse --verify HEAD) && + git merge -m "merge HASH7 and PARA_HASH6" "$HASH7" && + PARA_HASH7=$(git rev-parse --verify HEAD) +' + +test_expect_success 'restricting bisection on one dir' ' + git bisect reset && + git bisect start HEAD $HASH1 -- dir1 && + para1=$(git rev-parse --verify HEAD) && + test "$para1" = "$PARA_HASH1" && + git bisect bad > my_bisect_log.txt && + grep "$PARA_HASH1 is the first bad commit" my_bisect_log.txt +' + +test_expect_success 'restricting bisection on one dir and a file' ' + git bisect reset && + git bisect start HEAD $HASH1 -- dir1 hello && + para4=$(git rev-parse --verify HEAD) && + test "$para4" = "$PARA_HASH4" && + git bisect bad && + hash3=$(git rev-parse --verify HEAD) && + test "$hash3" = "$HASH3" && + git bisect good && + hash4=$(git rev-parse --verify HEAD) && + test "$hash4" = "$HASH4" && + git bisect good && + para1=$(git rev-parse --verify HEAD) && + test "$para1" = "$PARA_HASH1" && + git bisect good > my_bisect_log.txt && + grep "$PARA_HASH4 is the first bad commit" my_bisect_log.txt +' + +test_expect_success 'skipping away from skipped commit' ' + git bisect start $PARA_HASH7 $HASH1 && + para4=$(git rev-parse --verify HEAD) && + test "$para4" = "$PARA_HASH4" && + git bisect skip && + hash7=$(git rev-parse --verify HEAD) && + test "$hash7" = "$HASH7" && + git bisect skip && + para3=$(git rev-parse --verify HEAD) && + test "$para3" = "$PARA_HASH3" +' + +test_expect_success 'erroring out when using bad path parameters' ' + test_must_fail git bisect start $PARA_HASH7 $HASH1 -- foobar 2> error.txt && + grep "bad path parameters" error.txt +' + +test_expect_success 'test bisection on bare repo - --no-checkout specified' ' + git clone --bare . bare.nocheckout && + ( + cd bare.nocheckout && + git bisect start --no-checkout && + git bisect good $HASH1 && + git bisect bad $HASH4 && + git bisect run eval \ + "test \$(git rev-list BISECT_HEAD ^$HASH2 --max-count=1 | wc -l) = 0" \ + >../nocheckout.log && + git bisect reset + ) && + grep "$HASH3 is the first bad commit" nocheckout.log +' + + +test_expect_success 'test bisection on bare repo - --no-checkout defaulted' ' + git clone --bare . bare.defaulted && + ( + cd bare.defaulted && + git bisect start && + git bisect good $HASH1 && + git bisect bad $HASH4 && + git bisect run eval \ + "test \$(git rev-list BISECT_HEAD ^$HASH2 --max-count=1 | wc -l) = 0" \ + >../defaulted.log && + git bisect reset + ) && + grep "$HASH3 is the first bad commit" defaulted.log +' + +# +# This creates a broken branch which cannot be checked out because +# the tree created has been deleted. +# +# H1-H2-H3-H4-H5-H6-H7 <--other +# \ +# S5-S6'-S7'-S8'-S9 <--broken +# +# Commits marked with ' have a missing tree. +# +test_expect_success 'broken branch creation' ' + git bisect reset && + git checkout -b broken $HASH4 && + git tag BROKEN_HASH4 $HASH4 && + add_line_into_file "5(broken): first line on a broken branch" hello2 && + git tag BROKEN_HASH5 && + mkdir missing && + :> missing/MISSING && + git add missing/MISSING && + git commit -m "6(broken): Added file that will be deleted" + git tag BROKEN_HASH6 && + add_line_into_file "7(broken): second line on a broken branch" hello2 && + git tag BROKEN_HASH7 && + add_line_into_file "8(broken): third line on a broken branch" hello2 && + git tag BROKEN_HASH8 && + git rm missing/MISSING && + git commit -m "9(broken): Remove missing file" + git tag BROKEN_HASH9 && + rm .git/objects/39/f7e61a724187ab767d2e08442d9b6b9dab587d +' + +echo "" > expected.ok +cat > expected.missing-tree.default <<EOF +fatal: unable to read tree 39f7e61a724187ab767d2e08442d9b6b9dab587d +EOF + +test_expect_success 'bisect fails if tree is broken on start commit' ' + git bisect reset && + test_must_fail git bisect start BROKEN_HASH7 BROKEN_HASH4 2>error.txt && + test_cmp expected.missing-tree.default error.txt +' + +test_expect_success 'bisect fails if tree is broken on trial commit' ' + git bisect reset && + test_must_fail git bisect start BROKEN_HASH9 BROKEN_HASH4 2>error.txt && + git reset --hard broken && + git checkout broken && + test_cmp expected.missing-tree.default error.txt +' + +check_same() +{ + echo "Checking $1 is the same as $2" && + git rev-parse "$1" > expected.same && + git rev-parse "$2" > expected.actual && + test_cmp expected.same expected.actual +} + +test_expect_success 'bisect: --no-checkout - start commit bad' ' + git bisect reset && + git bisect start BROKEN_HASH7 BROKEN_HASH4 --no-checkout && + check_same BROKEN_HASH6 BISECT_HEAD && + git bisect reset +' + +test_expect_success 'bisect: --no-checkout - trial commit bad' ' + git bisect reset && + git bisect start broken BROKEN_HASH4 --no-checkout && + check_same BROKEN_HASH6 BISECT_HEAD && + git bisect reset +' + +test_expect_success 'bisect: --no-checkout - target before breakage' ' + git bisect reset && + git bisect start broken BROKEN_HASH4 --no-checkout && + check_same BROKEN_HASH6 BISECT_HEAD && + git bisect bad BISECT_HEAD && + check_same BROKEN_HASH5 BISECT_HEAD && + git bisect bad BISECT_HEAD && + check_same BROKEN_HASH5 bisect/bad && + git bisect reset +' + +test_expect_success 'bisect: --no-checkout - target in breakage' ' + git bisect reset && + git bisect start broken BROKEN_HASH4 --no-checkout && + check_same BROKEN_HASH6 BISECT_HEAD && + git bisect bad BISECT_HEAD && + check_same BROKEN_HASH5 BISECT_HEAD && + git bisect good BISECT_HEAD && + check_same BROKEN_HASH6 bisect/bad && + git bisect reset +' + +test_expect_success 'bisect: --no-checkout - target after breakage' ' + git bisect reset && + git bisect start broken BROKEN_HASH4 --no-checkout && + check_same BROKEN_HASH6 BISECT_HEAD && + git bisect good BISECT_HEAD && + check_same BROKEN_HASH8 BISECT_HEAD && + git bisect good BISECT_HEAD && + check_same BROKEN_HASH9 bisect/bad && + git bisect reset +' + +test_expect_success 'bisect: demonstrate identification of damage boundary' " + git bisect reset && + git checkout broken && + git bisect start broken master --no-checkout && + git bisect run \"\$SHELL_PATH\" -c ' + GOOD=\$(git for-each-ref \"--format=%(objectname)\" refs/bisect/good-*) && + git rev-list --objects BISECT_HEAD --not \$GOOD >tmp.\$\$ && + git pack-objects --stdout >/dev/null < tmp.\$\$ + rc=\$? + rm -f tmp.\$\$ + test \$rc = 0' && + check_same BROKEN_HASH6 bisect/bad && + git bisect reset +" + +test_done |