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t5526: introduce test helper to assert on fetches

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Tests in t/t5526-fetch-submodules.sh are unnecessarily noisy:

* The tests have extra logic in order to reproduce the expected stderr
  literally, but not all of these details (e.g. the head of the
  remote-tracking branch before the fetch) are relevant to the test.

* The expect.err file is constructed by the add_upstream_commit() helper
  as input into test_cmp, but most tests fetch a different combination
  of repos from expect.err. This results in noisy tests that modify
  parts of that expect.err to generate the expected output.

To address both of these issues, introduce a verify_fetch_result()
helper to t/t5526-fetch-submodules.sh that asserts on the output of "git
fetch --recurse-submodules" and handles the ordering of expect.err.

As a result, the tests no longer construct expect.err manually. Tests
still consider the old head of the remote-tracking branch ("$head1"),
but that will be fixed in a later commit.

Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Glen Choo 2022-03-07 16:14:24 -08:00 committed by Junio C Hamano
parent dab1b7905d
commit f3117dfdd1
1 changed files with 84 additions and 55 deletions
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139
t/t5526-fetch-submodules.sh
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@ -10,6 +10,10 @@ export GIT_TEST_FATAL_REGISTER_SUBMODULE_ODB
pwd=$(pwd)
# For each submodule in the test setup, this creates a commit and writes
# a file that contains the expected err if that new commit were fetched.
# These output files get concatenated in the right order by
# verify_fetch_result().
add_upstream_commit() {
(
cd submodule &&
@ -19,9 +23,9 @@ add_upstream_commit() {
git add subfile &&
git commit -m new subfile &&
head2=$(git rev-parse --short HEAD) &&
echo "Fetching submodule submodule" > ../expect.err &&
echo "From $pwd/submodule" >> ../expect.err &&
echo " $head1..$head2 sub -> origin/sub" >> ../expect.err
echo "Fetching submodule submodule" > ../expect.err.sub &&
echo "From $pwd/submodule" >> ../expect.err.sub &&
echo " $head1..$head2 sub -> origin/sub" >> ../expect.err.sub
) &&
(
cd deepsubmodule &&
@ -31,12 +35,36 @@ add_upstream_commit() {
git add deepsubfile &&
git commit -m new deepsubfile &&
head2=$(git rev-parse --short HEAD) &&
echo "Fetching submodule submodule/subdir/deepsubmodule" >> ../expect.err
echo "From $pwd/deepsubmodule" >> ../expect.err &&
echo " $head1..$head2 deep -> origin/deep" >> ../expect.err
echo "Fetching submodule submodule/subdir/deepsubmodule" > ../expect.err.deep
echo "From $pwd/deepsubmodule" >> ../expect.err.deep &&
echo " $head1..$head2 deep -> origin/deep" >> ../expect.err.deep
)
}
# Verifies that the expected repositories were fetched. This is done by
# concatenating the files expect.err.[super|sub|deep] in the correct
# order and comparing it to the actual stderr.
#
# If a repo should not be fetched in the test, its corresponding
# expect.err file should be rm-ed.
verify_fetch_result () {
ACTUAL_ERR=$1 &&
rm -f expect.err.combined &&
if test -f expect.err.super
then
cat expect.err.super >>expect.err.combined
fi &&
if test -f expect.err.sub
then
cat expect.err.sub >>expect.err.combined
fi &&
if test -f expect.err.deep
then
cat expect.err.deep >>expect.err.combined
fi &&
test_cmp expect.err.combined $ACTUAL_ERR
}
test_expect_success setup '
mkdir deepsubmodule &&
(
@ -74,7 +102,7 @@ test_expect_success "fetch --recurse-submodules recurses into submodules" '
git fetch --recurse-submodules >../actual.out 2>../actual.err
) &&
test_must_be_empty actual.out &&
test_cmp expect.err actual.err
verify_fetch_result actual.err
'
test_expect_success "submodule.recurse option triggers recursive fetch" '
@ -84,7 +112,7 @@ test_expect_success "submodule.recurse option triggers recursive fetch" '
git -c submodule.recurse fetch >../actual.out 2>../actual.err
) &&
test_must_be_empty actual.out &&
test_cmp expect.err actual.err
verify_fetch_result actual.err
'
test_expect_success "fetch --recurse-submodules -j2 has the same output behaviour" '
@ -94,7 +122,7 @@ test_expect_success "fetch --recurse-submodules -j2 has the same output behaviou
GIT_TRACE="$TRASH_DIRECTORY/trace.out" git fetch --recurse-submodules -j2 2>../actual.err
) &&
test_must_be_empty actual.out &&
test_cmp expect.err actual.err &&
verify_fetch_result actual.err &&
grep "2 tasks" trace.out
'
@ -124,7 +152,7 @@ test_expect_success "using fetchRecurseSubmodules=true in .gitmodules recurses i
git fetch >../actual.out 2>../actual.err
) &&
test_must_be_empty actual.out &&
test_cmp expect.err actual.err
verify_fetch_result actual.err
'
test_expect_success "--no-recurse-submodules overrides .gitmodules config" '
@ -155,7 +183,7 @@ test_expect_success "--recurse-submodules overrides fetchRecurseSubmodules setti
git config --unset submodule.submodule.fetchRecurseSubmodules
) &&
test_must_be_empty actual.out &&
test_cmp expect.err actual.err
verify_fetch_result actual.err
'
test_expect_success "--quiet propagates to submodules" '
@ -183,7 +211,7 @@ test_expect_success "--dry-run propagates to submodules" '
git fetch --recurse-submodules --dry-run >../actual.out 2>../actual.err
) &&
test_must_be_empty actual.out &&
test_cmp expect.err actual.err
verify_fetch_result actual.err
'
test_expect_success "Without --dry-run propagates to submodules" '
@ -192,7 +220,7 @@ test_expect_success "Without --dry-run propagates to submodules" '
git fetch --recurse-submodules >../actual.out 2>../actual.err
) &&
test_must_be_empty actual.out &&
test_cmp expect.err actual.err
verify_fetch_result actual.err
'
test_expect_success "recurseSubmodules=true propagates into submodules" '
@ -203,7 +231,7 @@ test_expect_success "recurseSubmodules=true propagates into submodules" '
git fetch >../actual.out 2>../actual.err
) &&
test_must_be_empty actual.out &&
test_cmp expect.err actual.err
verify_fetch_result actual.err
'
test_expect_success "--recurse-submodules overrides config in submodule" '
@ -217,7 +245,7 @@ test_expect_success "--recurse-submodules overrides config in submodule" '
git fetch --recurse-submodules >../actual.out 2>../actual.err
) &&
test_must_be_empty actual.out &&
test_cmp expect.err actual.err
verify_fetch_result actual.err
'
test_expect_success "--no-recurse-submodules overrides config setting" '
@ -250,14 +278,14 @@ test_expect_success "Recursion stops when no new submodule commits are fetched"
git add submodule &&
git commit -m "new submodule" &&
head2=$(git rev-parse --short HEAD) &&
echo "From $pwd/." > expect.err.sub &&
echo " $head1..$head2 super -> origin/super" >>expect.err.sub &&
head -3 expect.err >> expect.err.sub &&
echo "From $pwd/." > expect.err.super &&
echo " $head1..$head2 super -> origin/super" >>expect.err.super &&
rm expect.err.deep &&
(
cd downstream &&
git fetch >../actual.out 2>../actual.err
) &&
test_cmp expect.err.sub actual.err &&
verify_fetch_result actual.err &&
test_must_be_empty actual.out
'
@ -268,14 +296,16 @@ test_expect_success "Recursion doesn't happen when new superproject commits don'
git add file &&
git commit -m "new file" &&
head2=$(git rev-parse --short HEAD) &&
echo "From $pwd/." > expect.err.file &&
echo " $head1..$head2 super -> origin/super" >> expect.err.file &&
echo "From $pwd/." > expect.err.super &&
echo " $head1..$head2 super -> origin/super" >> expect.err.super &&
rm expect.err.sub &&
rm expect.err.deep &&
(
cd downstream &&
git fetch >../actual.out 2>../actual.err
) &&
test_must_be_empty actual.out &&
test_cmp expect.err.file actual.err
verify_fetch_result actual.err
'
test_expect_success "Recursion picks up config in submodule" '
@ -292,9 +322,8 @@ test_expect_success "Recursion picks up config in submodule" '
git add submodule &&
git commit -m "new submodule" &&
head2=$(git rev-parse --short HEAD) &&
echo "From $pwd/." > expect.err.sub &&
echo " $head1..$head2 super -> origin/super" >> expect.err.sub &&
cat expect.err >> expect.err.sub &&
echo "From $pwd/." > expect.err.super &&
echo " $head1..$head2 super -> origin/super" >> expect.err.super &&
(
cd downstream &&
git fetch >../actual.out 2>../actual.err &&
@ -303,7 +332,7 @@ test_expect_success "Recursion picks up config in submodule" '
git config --unset fetch.recurseSubmodules
)
) &&
test_cmp expect.err.sub actual.err &&
verify_fetch_result actual.err &&
test_must_be_empty actual.out
'
@ -328,15 +357,13 @@ test_expect_success "Recursion picks up all submodules when necessary" '
git add submodule &&
git commit -m "new submodule" &&
head2=$(git rev-parse --short HEAD) &&
echo "From $pwd/." > expect.err.2 &&
echo " $head1..$head2 super -> origin/super" >> expect.err.2 &&
cat expect.err.sub >> expect.err.2 &&
tail -3 expect.err >> expect.err.2 &&
echo "From $pwd/." > expect.err.super &&
echo " $head1..$head2 super -> origin/super" >> expect.err.super &&
(
cd downstream &&
git fetch >../actual.out 2>../actual.err
) &&
test_cmp expect.err.2 actual.err &&
verify_fetch_result actual.err &&
test_must_be_empty actual.out
'
@ -372,11 +399,8 @@ test_expect_success "'--recurse-submodules=on-demand' recurses as deep as necess
git add submodule &&
git commit -m "new submodule" &&
head2=$(git rev-parse --short HEAD) &&
tail -3 expect.err > expect.err.deepsub &&
echo "From $pwd/." > expect.err &&
echo " $head1..$head2 super -> origin/super" >>expect.err &&
cat expect.err.sub >> expect.err &&
cat expect.err.deepsub >> expect.err &&
echo "From $pwd/." > expect.err.super &&
echo " $head1..$head2 super -> origin/super" >>expect.err.super &&
(
cd downstream &&
git config fetch.recurseSubmodules false &&
@ -392,7 +416,7 @@ test_expect_success "'--recurse-submodules=on-demand' recurses as deep as necess
)
) &&
test_must_be_empty actual.out &&
test_cmp expect.err actual.err
verify_fetch_result actual.err
'
test_expect_success "'--recurse-submodules=on-demand' stops when no new submodule commits are found in the superproject (and ignores config)" '
@ -402,14 +426,16 @@ test_expect_success "'--recurse-submodules=on-demand' stops when no new submodul
git add file &&
git commit -m "new file" &&
head2=$(git rev-parse --short HEAD) &&
echo "From $pwd/." > expect.err.file &&
echo " $head1..$head2 super -> origin/super" >> expect.err.file &&
echo "From $pwd/." > expect.err.super &&
echo " $head1..$head2 super -> origin/super" >> expect.err.super &&
rm expect.err.sub &&
rm expect.err.deep &&
(
cd downstream &&
git fetch --recurse-submodules=on-demand >../actual.out 2>../actual.err
) &&
test_must_be_empty actual.out &&
test_cmp expect.err.file actual.err
verify_fetch_result actual.err
'
test_expect_success "'fetch.recurseSubmodules=on-demand' overrides global config" '
@ -423,9 +449,9 @@ test_expect_success "'fetch.recurseSubmodules=on-demand' overrides global config
git add submodule &&
git commit -m "new submodule" &&
head2=$(git rev-parse --short HEAD) &&
echo "From $pwd/." > expect.err.2 &&
echo " $head1..$head2 super -> origin/super" >>expect.err.2 &&
head -3 expect.err >> expect.err.2 &&
echo "From $pwd/." > expect.err.super &&
echo " $head1..$head2 super -> origin/super" >>expect.err.super &&
rm expect.err.deep &&
(
cd downstream &&
git config fetch.recurseSubmodules on-demand &&
@ -437,7 +463,7 @@ test_expect_success "'fetch.recurseSubmodules=on-demand' overrides global config
git config --unset fetch.recurseSubmodules
) &&
test_must_be_empty actual.out &&
test_cmp expect.err.2 actual.err
verify_fetch_result actual.err
'
test_expect_success "'submodule.<sub>.fetchRecurseSubmodules=on-demand' overrides fetch.recurseSubmodules" '
@ -451,9 +477,9 @@ test_expect_success "'submodule.<sub>.fetchRecurseSubmodules=on-demand' override
git add submodule &&
git commit -m "new submodule" &&
head2=$(git rev-parse --short HEAD) &&
echo "From $pwd/." > expect.err.2 &&
echo " $head1..$head2 super -> origin/super" >>expect.err.2 &&
head -3 expect.err >> expect.err.2 &&
echo "From $pwd/." > expect.err.super &&
echo " $head1..$head2 super -> origin/super" >>expect.err.super &&
rm expect.err.deep &&
(
cd downstream &&
git config submodule.submodule.fetchRecurseSubmodules on-demand &&
@ -465,7 +491,7 @@ test_expect_success "'submodule.<sub>.fetchRecurseSubmodules=on-demand' override
git config --unset submodule.submodule.fetchRecurseSubmodules
) &&
test_must_be_empty actual.out &&
test_cmp expect.err.2 actual.err
verify_fetch_result actual.err
'
test_expect_success "don't fetch submodule when newly recorded commits are already present" '
@ -477,14 +503,17 @@ test_expect_success "don't fetch submodule when newly recorded commits are alrea
git add submodule &&
git commit -m "submodule rewound" &&
head2=$(git rev-parse --short HEAD) &&
echo "From $pwd/." > expect.err &&
echo " $head1..$head2 super -> origin/super" >> expect.err &&
echo "From $pwd/." > expect.err.super &&
echo " $head1..$head2 super -> origin/super" >> expect.err.super &&
rm expect.err.sub &&
# This file does not exist, but rm -f for readability
rm -f expect.err.deep &&
(
cd downstream &&
git fetch >../actual.out 2>../actual.err
) &&
test_must_be_empty actual.out &&
test_cmp expect.err actual.err &&
verify_fetch_result actual.err &&
(
cd submodule &&
git checkout -q sub
@ -502,9 +531,9 @@ test_expect_success "'fetch.recurseSubmodules=on-demand' works also without .git
git rm .gitmodules &&
git commit -m "new submodule without .gitmodules" &&
head2=$(git rev-parse --short HEAD) &&
echo "From $pwd/." >expect.err.2 &&
echo " $head1..$head2 super -> origin/super" >>expect.err.2 &&
head -3 expect.err >>expect.err.2 &&
echo "From $pwd/." >expect.err.super &&
echo " $head1..$head2 super -> origin/super" >>expect.err.super &&
rm expect.err.deep &&
(
cd downstream &&
rm .gitmodules &&
@ -520,7 +549,7 @@ test_expect_success "'fetch.recurseSubmodules=on-demand' works also without .git
git reset --hard
) &&
test_must_be_empty actual.out &&
test_cmp expect.err.2 actual.err &&
verify_fetch_result actual.err &&
git checkout HEAD^ -- .gitmodules &&
git add .gitmodules &&
git commit -m "new submodule restored .gitmodules"