Michael Montalbo
47f79f6198
Replace bare grep with test_grep in test assertions across the
suite, including sourced test helpers (lib-*.sh, *-tests.sh).
test_grep prints the contents of the file being searched on
failure, making debugging easier than a bare grep which fails
silently.
Only assertion-style greps are converted: grep used as a filter
in pipelines, command substitutions, conditionals, or with
redirected I/O is left as-is with a "# lint-ok" annotation.
Existing '! test_grep' calls are rewritten to 'test_grep !' so
that the diagnostic output is preserved on failure.
test_grep requires the file it reads to exist, so '! grep'
assertions that inspect a file whose presence is conditional need
care. In t5537 the '.git/shallow' file is still present after the
repack (the client remains shallow), so the assertion is
converted like any other. In t1400 the '.git/packed-refs' file
exists only with the files backend, so its check is guarded with a
REFFILES prerequisite; the backend-agnostic 'git show-ref' check
that follows still runs under every backend. In t7450 'git~2' is
the NTFS 8.3 short name of a '..git' file and only exists
when 8.3 short-name generation is enabled, so its check is guarded
with a 'test -f' on the path and uses test_grep inside the guard,
the same shape as t1400 (a plain test_grep would BUG when the
short name is absent).
The conversion was generated using a grep-assertion linter
(greplint.pl, added in the following commit) to identify bare
grep calls at command position. To reproduce, from the t/
directory:
# Step 1: annotate the two data-filter greps (grep produces
# data, not a verdict) so the linter skips them.
sed -i '/grep -vf before commits\.raw/s/$/ # lint-ok: data filter/' \
t5326-multi-pack-bitmaps.sh
sed -i '/grep -E "^\[0-9a-f\].*|| :/s/$/ # lint-ok: data filter/' \
t5702-protocol-v2.sh
# Step 1b: two '! grep' assertions need more than a mechanical
# conversion; handle them by hand before the linter-driven steps
# below so it leaves them alone.
#
# t1400: '.git/packed-refs' is absent under reftable, so guard the
# check with REFFILES (a plain test_grep would BUG on the missing
# file):
#
# git update-ref -d HEAD $B &&
# - ! grep "$m" .git/packed-refs &&
# + if test_have_prereq REFFILES
# + then
# + test_grep ! "$m" .git/packed-refs
# + fi &&
# test_must_fail git show-ref --verify -q $m
#
# t7450: git~2 is an NTFS 8.3 short name that exists only when
# short-name generation is enabled, so guard the check on its
# presence with 'test -f' and note in a comment why the path can
# be absent (a plain test_grep would BUG when it is):
#
# - ! grep gitdir squatting-clone/d/a/git~2
# + if test -f squatting-clone/d/a/git~2
# + then
# + test_grep ! gitdir squatting-clone/d/a/git~2
# + fi
# Step 2: reorder pre-existing '! test_grep' to 'test_grep !'
# (must come before steps 3-4 so greplint does not see them)
sed -i 's/! test_grep/test_grep !/' t0031-lockfile-pid.sh
sed -i 's/! test_grep/test_grep !/' t5300-pack-object.sh
sed -i 's/! test_grep/test_grep !/' t5319-multi-pack-index.sh
# Step 3: convert '! grep' -> 'test_grep !'
perl greplint.pl *.sh 2>&1 | cut -d: -f1,2 |
while IFS=: read f l; do
sed -i "${l}s/! *grep/test_grep !/" "$f"
done
# Step 4: convert remaining 'grep' -> 'test_grep'
perl greplint.pl *.sh 2>&1 | cut -d: -f1,2 |
while IFS=: read f l; do
sed -i "${l}s/grep/test_grep/" "$f"
done
To verify, run: make -C t test-greplint
Signed-off-by: Michael Montalbo <mmontalbo@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
98 lines
2.1 KiB
Bash
Executable File
98 lines
2.1 KiB
Bash
Executable File
#!/bin/sh
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test_description='test direct comparison of blobs via git-diff'
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. ./test-lib.sh
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run_diff () {
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# use full-index to make it easy to match the index line
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git diff --full-index "$@" >diff
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}
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check_index () {
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grep "^index $1\\.\\.$2" diff
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}
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check_mode () {
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grep "^old mode $1" diff &&
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grep "^new mode $2" diff
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}
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check_paths () {
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grep "^diff --git a/$1 b/$2" diff
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}
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test_expect_success 'create some blobs' '
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echo one >one &&
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echo two >two &&
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chmod +x two &&
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git add . &&
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# cover systems where modes are ignored
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git update-index --chmod=+x two &&
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git commit -m base &&
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sha1_one=$(git rev-parse HEAD:one) &&
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sha1_two=$(git rev-parse HEAD:two)
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'
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test_expect_success 'diff by sha1' '
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run_diff $sha1_one $sha1_two
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'
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test_expect_success 'index of sha1 diff' '
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check_index $sha1_one $sha1_two
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'
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test_expect_success 'sha1 diff uses arguments as paths' '
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check_paths $sha1_one $sha1_two
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'
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test_expect_success 'sha1 diff has no mode change' '
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test_grep ! mode diff
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'
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test_expect_success 'diff by tree:path (run)' '
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run_diff HEAD:one HEAD:two
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'
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test_expect_success 'index of tree:path diff' '
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check_index $sha1_one $sha1_two
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'
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test_expect_success 'tree:path diff uses filenames as paths' '
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check_paths one two
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'
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test_expect_success 'tree:path diff shows mode change' '
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check_mode 100644 100755
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'
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test_expect_success 'diff by ranged tree:path' '
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run_diff HEAD:one..HEAD:two
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'
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test_expect_success 'index of ranged tree:path diff' '
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check_index $sha1_one $sha1_two
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'
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test_expect_success 'ranged tree:path diff uses filenames as paths' '
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check_paths one two
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'
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test_expect_success 'ranged tree:path diff shows mode change' '
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check_mode 100644 100755
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'
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test_expect_success 'diff blob against file' '
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run_diff HEAD:one two
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'
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test_expect_success 'index of blob-file diff' '
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check_index $sha1_one $sha1_two
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'
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test_expect_success 'blob-file diff uses filename as paths' '
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check_paths one two
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'
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test_expect_success FILEMODE 'blob-file diff shows mode change' '
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check_mode 100644 100755
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'
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test_expect_success 'blob-file diff prefers filename to sha1' '
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run_diff $sha1_one two &&
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check_paths two two
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'
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test_done
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