git/t/t1411-reflog-show.sh
SZEDER Gábor 1c5e94f459 tests: use 'test_must_be_empty' instead of 'test_cmp <empty> <out>'
Using 'test_must_be_empty' is shorter and more idiomatic than

  >empty &&
  test_cmp empty out

as it saves the creation of an empty file.  Furthermore, sometimes the
expected empty file doesn't have such a descriptive name like 'empty',
and its creation is far away from the place where it's finally used
for comparison (e.g. in 't7600-merge.sh', where two expected empty
files are created in the 'setup' test, but are used only about 500
lines later).

These cases were found by instrumenting 'test_cmp' to error out the
test script when it's used to compare empty files, and then converted
manually.

Note that even after this patch there still remain a lot of cases
where we use 'test_cmp' to check empty files:

  - Sometimes the expected output is not hard-coded in the test, but
    'test_cmp' is used to ensure that two similar git commands produce
    the same output, and that output happens to be empty, e.g. the
    test 'submodule update --merge  - ignores --merge  for new
    submodules' in 't7406-submodule-update.sh'.

  - Repetitive common tasks, including preparing the expected results
    and running 'test_cmp', are often extracted into a helper
    function, and some of this helper's callsites expect no output.

  - For the same reason as above, the whole 'test_expect_success'
    block is within a helper function, e.g. in 't3070-wildmatch.sh'.

  - Or 'test_cmp' is invoked in a loop, e.g. the test 'cvs update
    (-p)' in 't9400-git-cvsserver-server.sh'.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-08-21 11:48:36 -07:00

175 lines
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#!/bin/sh
test_description='Test reflog display routines'
. ./test-lib.sh
test_expect_success 'setup' '
echo content >file &&
git add file &&
test_tick &&
git commit -m one
'
commit=$(git rev-parse --short HEAD)
cat >expect <<'EOF'
Reflog: HEAD@{0} (C O Mitter <committer@example.com>)
Reflog message: commit (initial): one
EOF
test_expect_success 'log -g shows reflog headers' '
git log -g -1 >tmp &&
grep ^Reflog <tmp >actual &&
test_cmp expect actual
'
cat >expect <<EOF
$commit HEAD@{0}: commit (initial): one
EOF
test_expect_success 'oneline reflog format' '
git log -g -1 --oneline >actual &&
test_cmp expect actual
'
test_expect_success 'reflog default format' '
git reflog -1 >actual &&
test_cmp expect actual
'
cat >expect <<EOF
commit $commit
Reflog: HEAD@{0} (C O Mitter <committer@example.com>)
Reflog message: commit (initial): one
Author: A U Thor <author@example.com>
one
EOF
test_expect_success 'override reflog default format' '
git reflog --format=short -1 >actual &&
test_cmp expect actual
'
cat >expect <<'EOF'
Reflog: HEAD@{Thu Apr 7 15:13:13 2005 -0700} (C O Mitter <committer@example.com>)
Reflog message: commit (initial): one
EOF
test_expect_success 'using @{now} syntax shows reflog date (multiline)' '
git log -g -1 HEAD@{now} >tmp &&
grep ^Reflog <tmp >actual &&
test_cmp expect actual
'
cat >expect <<EOF
$commit HEAD@{Thu Apr 7 15:13:13 2005 -0700}: commit (initial): one
EOF
test_expect_success 'using @{now} syntax shows reflog date (oneline)' '
git log -g -1 --oneline HEAD@{now} >actual &&
test_cmp expect actual
'
cat >expect <<'EOF'
HEAD@{Thu Apr 7 15:13:13 2005 -0700}
EOF
test_expect_success 'using @{now} syntax shows reflog date (format=%gd)' '
git log -g -1 --format=%gd HEAD@{now} >actual &&
test_cmp expect actual
'
cat >expect <<'EOF'
Reflog: HEAD@{Thu Apr 7 15:13:13 2005 -0700} (C O Mitter <committer@example.com>)
Reflog message: commit (initial): one
EOF
test_expect_success 'using --date= shows reflog date (multiline)' '
git log -g -1 --date=default >tmp &&
grep ^Reflog <tmp >actual &&
test_cmp expect actual
'
cat >expect <<EOF
$commit HEAD@{Thu Apr 7 15:13:13 2005 -0700}: commit (initial): one
EOF
test_expect_success 'using --date= shows reflog date (oneline)' '
git log -g -1 --oneline --date=default >actual &&
test_cmp expect actual
'
cat >expect <<'EOF'
HEAD@{1112911993 -0700}
EOF
test_expect_success 'using --date= shows reflog date (format=%gd)' '
git log -g -1 --format=%gd --date=raw >actual &&
test_cmp expect actual
'
cat >expect <<'EOF'
Reflog: HEAD@{0} (C O Mitter <committer@example.com>)
Reflog message: commit (initial): one
EOF
test_expect_success 'log.date does not invoke "--date" magic (multiline)' '
test_config log.date raw &&
git log -g -1 >tmp &&
grep ^Reflog <tmp >actual &&
test_cmp expect actual
'
cat >expect <<EOF
$commit HEAD@{0}: commit (initial): one
EOF
test_expect_success 'log.date does not invoke "--date" magic (oneline)' '
test_config log.date raw &&
git log -g -1 --oneline >actual &&
test_cmp expect actual
'
cat >expect <<'EOF'
HEAD@{0}
EOF
test_expect_success 'log.date does not invoke "--date" magic (format=%gd)' '
test_config log.date raw &&
git log -g -1 --format=%gd >actual &&
test_cmp expect actual
'
cat >expect <<'EOF'
HEAD@{0}
EOF
test_expect_success '--date magic does not override explicit @{0} syntax' '
git log -g -1 --format=%gd --date=raw HEAD@{0} >actual &&
test_cmp expect actual
'
test_expect_success 'empty reflog file' '
git branch empty &&
git reflog expire --expire=all refs/heads/empty &&
git log -g empty >actual &&
test_must_be_empty actual
'
# This guards against the alternative of showing the diffs vs. the
# reflog ancestor. The reflog used is designed to list the commits
# more than once, so as to exercise the corresponding logic.
test_expect_success 'git log -g -p shows diffs vs. parents' '
test_commit two &&
git branch flipflop &&
git update-ref refs/heads/flipflop -m flip1 HEAD^ &&
git update-ref refs/heads/flipflop -m flop1 HEAD &&
git update-ref refs/heads/flipflop -m flip2 HEAD^ &&
git log -g -p flipflop >reflog &&
grep -v ^Reflog reflog >actual &&
git log -1 -p HEAD^ >log.one &&
git log -1 -p HEAD >log.two &&
(
cat log.one; echo
cat log.two; echo
cat log.one; echo
cat log.two
) >expect &&
test_cmp expect actual
'
test_expect_success 'reflog exists works' '
git reflog exists refs/heads/master &&
! git reflog exists refs/heads/nonexistent
'
test_done