t1407: require REFFILES for for_each_reflog test

Add extensive comment why this test needs a REFFILES annotation. I tried forcing universal reflog creation with core.logAllRefUpdates=true, but that apparently also doesn't cause reflogs to be created for pseudorefs Signed-off-by: Han-Wen Nienhuys <hanwen@google.com> Reviewed-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Han-Wen Nienhuys committed May 31, 2021 at 16:56 UTC 759d02d1aeb2e9d51afe9f948fe0dc15093722a0
1 file changed +8 -1
t/t1407-worktree-ref-store.sh
+8 -1
@@ -52,7 +52,14 @@ test_expect_success 'create_symref(FOO, refs/heads/main)' '
52 test_cmp expected actual
53 '
54
55 -test_expect_success 'for_each_reflog()' '
55 +# Some refs (refs/bisect/*, pseudorefs) are kept per worktree, so they should
56 +# only appear in the for-each-reflog output if it is called from the correct
57 +# worktree, which is exercised in this test. This test is poorly written (and
58 +# therefore marked REFFILES) for mulitple reasons: 1) it creates invalidly
59 +# formatted log entres. 2) it uses direct FS access for creating the reflogs. 3)
60 +# PSEUDO-WT and refs/bisect/random do not create reflogs by default, so it is
61 +# not testing a realistic scenario.
62 +test_expect_success REFFILES 'for_each_reflog()' '
63 echo $ZERO_OID > .git/logs/PSEUDO-MAIN &&
64 mkdir -p .git/logs/refs/bisect &&
65 echo $ZERO_OID > .git/logs/refs/bisect/random &&