git/t/t6600-test-reach.sh
Eric Sunshine 0c51d6b4ae t6000-t9999: detect and signal failure within loop
Failures within `for` and `while` loops can go unnoticed if not detected
and signaled manually since the loop itself does not abort when a
contained command fails, nor will a failure necessarily be detected when
the loop finishes since the loop returns the exit code of the last
command it ran on the final iteration, which may not be the command
which failed. Therefore, detect and signal failures manually within
loops using the idiom `|| return 1` (or `|| exit 1` within subshells).

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-12-13 10:29:48 -08:00

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#!/bin/sh
test_description='basic commit reachability tests'
. ./test-lib.sh
# Construct a grid-like commit graph with points (x,y)
# with 1 <= x <= 10, 1 <= y <= 10, where (x,y) has
# parents (x-1, y) and (x, y-1), keeping in mind that
# we drop a parent if a coordinate is nonpositive.
#
# (10,10)
# / \
# (10,9) (9,10)
# / \ / \
# (10,8) (9,9) (8,10)
# / \ / \ / \
# ( continued...)
# \ / \ / \ /
# (3,1) (2,2) (1,3)
# \ / \ /
# (2,1) (2,1)
# \ /
# (1,1)
#
# We use branch 'commit-x-y' to refer to (x,y).
# This grid allows interesting reachability and
# non-reachability queries: (x,y) can reach (x',y')
# if and only if x' <= x and y' <= y.
test_expect_success 'setup' '
for i in $(test_seq 1 10)
do
test_commit "1-$i" &&
git branch -f commit-1-$i &&
git tag -a -m "1-$i" tag-1-$i commit-1-$i || return 1
done &&
for j in $(test_seq 1 9)
do
git reset --hard commit-$j-1 &&
x=$(($j + 1)) &&
test_commit "$x-1" &&
git branch -f commit-$x-1 &&
git tag -a -m "$x-1" tag-$x-1 commit-$x-1 &&
for i in $(test_seq 2 10)
do
git merge commit-$j-$i -m "$x-$i" &&
git branch -f commit-$x-$i &&
git tag -a -m "$x-$i" tag-$x-$i commit-$x-$i || return 1
done
done &&
git commit-graph write --reachable &&
mv .git/objects/info/commit-graph commit-graph-full &&
chmod u+w commit-graph-full &&
git show-ref -s commit-5-5 | git commit-graph write --stdin-commits &&
mv .git/objects/info/commit-graph commit-graph-half &&
chmod u+w commit-graph-half &&
git -c commitGraph.generationVersion=1 commit-graph write --reachable &&
mv .git/objects/info/commit-graph commit-graph-no-gdat &&
chmod u+w commit-graph-no-gdat &&
git config core.commitGraph true
'
run_all_modes () {
test_when_finished rm -rf .git/objects/info/commit-graph &&
"$@" <input >actual &&
test_cmp expect actual &&
cp commit-graph-full .git/objects/info/commit-graph &&
"$@" <input >actual &&
test_cmp expect actual &&
cp commit-graph-half .git/objects/info/commit-graph &&
"$@" <input >actual &&
test_cmp expect actual &&
cp commit-graph-no-gdat .git/objects/info/commit-graph &&
"$@" <input >actual &&
test_cmp expect actual
}
test_all_modes () {
run_all_modes test-tool reach "$@"
}
test_expect_success 'ref_newer:miss' '
cat >input <<-\EOF &&
A:commit-5-7
B:commit-4-9
EOF
echo "ref_newer(A,B):0" >expect &&
test_all_modes ref_newer
'
test_expect_success 'ref_newer:hit' '
cat >input <<-\EOF &&
A:commit-5-7
B:commit-2-3
EOF
echo "ref_newer(A,B):1" >expect &&
test_all_modes ref_newer
'
test_expect_success 'in_merge_bases:hit' '
cat >input <<-\EOF &&
A:commit-5-7
B:commit-8-8
EOF
echo "in_merge_bases(A,B):1" >expect &&
test_all_modes in_merge_bases
'
test_expect_success 'in_merge_bases:miss' '
cat >input <<-\EOF &&
A:commit-6-8
B:commit-5-9
EOF
echo "in_merge_bases(A,B):0" >expect &&
test_all_modes in_merge_bases
'
test_expect_success 'in_merge_bases_many:hit' '
cat >input <<-\EOF &&
A:commit-6-8
X:commit-6-9
X:commit-5-7
EOF
echo "in_merge_bases_many(A,X):1" >expect &&
test_all_modes in_merge_bases_many
'
test_expect_success 'in_merge_bases_many:miss' '
cat >input <<-\EOF &&
A:commit-6-8
X:commit-7-7
X:commit-8-6
EOF
echo "in_merge_bases_many(A,X):0" >expect &&
test_all_modes in_merge_bases_many
'
test_expect_success 'in_merge_bases_many:miss-heuristic' '
cat >input <<-\EOF &&
A:commit-6-8
X:commit-7-5
X:commit-6-6
EOF
echo "in_merge_bases_many(A,X):0" >expect &&
test_all_modes in_merge_bases_many
'
test_expect_success 'is_descendant_of:hit' '
cat >input <<-\EOF &&
A:commit-5-7
X:commit-4-8
X:commit-6-6
X:commit-1-1
EOF
echo "is_descendant_of(A,X):1" >expect &&
test_all_modes is_descendant_of
'
test_expect_success 'is_descendant_of:miss' '
cat >input <<-\EOF &&
A:commit-6-8
X:commit-5-9
X:commit-4-10
X:commit-7-6
EOF
echo "is_descendant_of(A,X):0" >expect &&
test_all_modes is_descendant_of
'
test_expect_success 'get_merge_bases_many' '
cat >input <<-\EOF &&
A:commit-5-7
X:commit-4-8
X:commit-6-6
X:commit-8-3
EOF
{
echo "get_merge_bases_many(A,X):" &&
git rev-parse commit-5-6 \
commit-4-7 | sort
} >expect &&
test_all_modes get_merge_bases_many
'
test_expect_success 'reduce_heads' '
cat >input <<-\EOF &&
X:commit-1-10
X:commit-2-8
X:commit-3-6
X:commit-4-4
X:commit-1-7
X:commit-2-5
X:commit-3-3
X:commit-5-1
EOF
{
echo "reduce_heads(X):" &&
git rev-parse commit-5-1 \
commit-4-4 \
commit-3-6 \
commit-2-8 \
commit-1-10 | sort
} >expect &&
test_all_modes reduce_heads
'
test_expect_success 'can_all_from_reach:hit' '
cat >input <<-\EOF &&
X:commit-2-10
X:commit-3-9
X:commit-4-8
X:commit-5-7
X:commit-6-6
X:commit-7-5
X:commit-8-4
X:commit-9-3
Y:commit-1-9
Y:commit-2-8
Y:commit-3-7
Y:commit-4-6
Y:commit-5-5
Y:commit-6-4
Y:commit-7-3
Y:commit-8-1
EOF
echo "can_all_from_reach(X,Y):1" >expect &&
test_all_modes can_all_from_reach
'
test_expect_success 'can_all_from_reach:miss' '
cat >input <<-\EOF &&
X:commit-2-10
X:commit-3-9
X:commit-4-8
X:commit-5-7
X:commit-6-6
X:commit-7-5
X:commit-8-4
X:commit-9-3
Y:commit-1-9
Y:commit-2-8
Y:commit-3-7
Y:commit-4-6
Y:commit-5-5
Y:commit-6-4
Y:commit-8-5
EOF
echo "can_all_from_reach(X,Y):0" >expect &&
test_all_modes can_all_from_reach
'
test_expect_success 'can_all_from_reach_with_flag: tags case' '
cat >input <<-\EOF &&
X:tag-2-10
X:tag-3-9
X:tag-4-8
X:commit-5-7
X:commit-6-6
X:commit-7-5
X:commit-8-4
X:commit-9-3
Y:tag-1-9
Y:tag-2-8
Y:tag-3-7
Y:commit-4-6
Y:commit-5-5
Y:commit-6-4
Y:commit-7-3
Y:commit-8-1
EOF
echo "can_all_from_reach_with_flag(X,_,_,0,0):1" >expect &&
test_all_modes can_all_from_reach_with_flag
'
test_expect_success 'commit_contains:hit' '
cat >input <<-\EOF &&
A:commit-7-7
X:commit-2-10
X:commit-3-9
X:commit-4-8
X:commit-5-7
X:commit-6-6
X:commit-7-5
X:commit-8-4
X:commit-9-3
EOF
echo "commit_contains(_,A,X,_):1" >expect &&
test_all_modes commit_contains &&
test_all_modes commit_contains --tag
'
test_expect_success 'commit_contains:miss' '
cat >input <<-\EOF &&
A:commit-6-5
X:commit-2-10
X:commit-3-9
X:commit-4-8
X:commit-5-7
X:commit-6-6
X:commit-7-5
X:commit-8-4
X:commit-9-3
EOF
echo "commit_contains(_,A,X,_):0" >expect &&
test_all_modes commit_contains &&
test_all_modes commit_contains --tag
'
test_expect_success 'rev-list: basic topo-order' '
git rev-parse \
commit-6-6 commit-5-6 commit-4-6 commit-3-6 commit-2-6 commit-1-6 \
commit-6-5 commit-5-5 commit-4-5 commit-3-5 commit-2-5 commit-1-5 \
commit-6-4 commit-5-4 commit-4-4 commit-3-4 commit-2-4 commit-1-4 \
commit-6-3 commit-5-3 commit-4-3 commit-3-3 commit-2-3 commit-1-3 \
commit-6-2 commit-5-2 commit-4-2 commit-3-2 commit-2-2 commit-1-2 \
commit-6-1 commit-5-1 commit-4-1 commit-3-1 commit-2-1 commit-1-1 \
>expect &&
run_all_modes git rev-list --topo-order commit-6-6
'
test_expect_success 'rev-list: first-parent topo-order' '
git rev-parse \
commit-6-6 \
commit-6-5 \
commit-6-4 \
commit-6-3 \
commit-6-2 \
commit-6-1 commit-5-1 commit-4-1 commit-3-1 commit-2-1 commit-1-1 \
>expect &&
run_all_modes git rev-list --first-parent --topo-order commit-6-6
'
test_expect_success 'rev-list: range topo-order' '
git rev-parse \
commit-6-6 commit-5-6 commit-4-6 commit-3-6 commit-2-6 commit-1-6 \
commit-6-5 commit-5-5 commit-4-5 commit-3-5 commit-2-5 commit-1-5 \
commit-6-4 commit-5-4 commit-4-4 commit-3-4 commit-2-4 commit-1-4 \
commit-6-3 commit-5-3 commit-4-3 \
commit-6-2 commit-5-2 commit-4-2 \
commit-6-1 commit-5-1 commit-4-1 \
>expect &&
run_all_modes git rev-list --topo-order commit-3-3..commit-6-6
'
test_expect_success 'rev-list: range topo-order' '
git rev-parse \
commit-6-6 commit-5-6 commit-4-6 \
commit-6-5 commit-5-5 commit-4-5 \
commit-6-4 commit-5-4 commit-4-4 \
commit-6-3 commit-5-3 commit-4-3 \
commit-6-2 commit-5-2 commit-4-2 \
commit-6-1 commit-5-1 commit-4-1 \
>expect &&
run_all_modes git rev-list --topo-order commit-3-8..commit-6-6
'
test_expect_success 'rev-list: first-parent range topo-order' '
git rev-parse \
commit-6-6 \
commit-6-5 \
commit-6-4 \
commit-6-3 \
commit-6-2 \
commit-6-1 commit-5-1 commit-4-1 \
>expect &&
run_all_modes git rev-list --first-parent --topo-order commit-3-8..commit-6-6
'
test_expect_success 'rev-list: ancestry-path topo-order' '
git rev-parse \
commit-6-6 commit-5-6 commit-4-6 commit-3-6 \
commit-6-5 commit-5-5 commit-4-5 commit-3-5 \
commit-6-4 commit-5-4 commit-4-4 commit-3-4 \
commit-6-3 commit-5-3 commit-4-3 \
>expect &&
run_all_modes git rev-list --topo-order --ancestry-path commit-3-3..commit-6-6
'
test_expect_success 'rev-list: symmetric difference topo-order' '
git rev-parse \
commit-6-6 commit-5-6 commit-4-6 \
commit-6-5 commit-5-5 commit-4-5 \
commit-6-4 commit-5-4 commit-4-4 \
commit-6-3 commit-5-3 commit-4-3 \
commit-6-2 commit-5-2 commit-4-2 \
commit-6-1 commit-5-1 commit-4-1 \
commit-3-8 commit-2-8 commit-1-8 \
commit-3-7 commit-2-7 commit-1-7 \
>expect &&
run_all_modes git rev-list --topo-order commit-3-8...commit-6-6
'
test_expect_success 'get_reachable_subset:all' '
cat >input <<-\EOF &&
X:commit-9-1
X:commit-8-3
X:commit-7-5
X:commit-6-6
X:commit-1-7
Y:commit-3-3
Y:commit-1-7
Y:commit-5-6
EOF
(
echo "get_reachable_subset(X,Y)" &&
git rev-parse commit-3-3 \
commit-1-7 \
commit-5-6 | sort
) >expect &&
test_all_modes get_reachable_subset
'
test_expect_success 'get_reachable_subset:some' '
cat >input <<-\EOF &&
X:commit-9-1
X:commit-8-3
X:commit-7-5
X:commit-1-7
Y:commit-3-3
Y:commit-1-7
Y:commit-5-6
EOF
(
echo "get_reachable_subset(X,Y)" &&
git rev-parse commit-3-3 \
commit-1-7 | sort
) >expect &&
test_all_modes get_reachable_subset
'
test_expect_success 'get_reachable_subset:none' '
cat >input <<-\EOF &&
X:commit-9-1
X:commit-8-3
X:commit-7-5
X:commit-1-7
Y:commit-9-3
Y:commit-7-6
Y:commit-2-8
EOF
echo "get_reachable_subset(X,Y)" >expect &&
test_all_modes get_reachable_subset
'
test_done