path where deltas larger than this limit require extra memory
allocation for bookkeeping.
+GIT_TEST_VALIDATE_INDEX_CACHE_ENTRIES=<boolean> checks that cache-tree
+records are valid when the index is written out or after a merge. This
+is mostly to catch missing invalidation. Default is true.
+
+GIT_TEST_COMMIT_GRAPH=<boolean>, when true, forces the commit-graph to
+be written after every 'git commit' command, and overrides the
+'core.commitGraph' setting to true.
+
Naming Tests
------------
the symbolic link in the file system and a part that does; then only
the latter part need be protected by a SYMLINKS prerequisite (see below).
+ - test_oid_init
+
+ This function loads facts and useful object IDs related to the hash
+ algorithm(s) in use from the files in t/oid-info.
+
+ - test_oid_cache
+
+ This function reads per-hash algorithm information from standard
+ input (usually a heredoc) in the format described in
+ t/oid-info/README. This is useful for test-specific values, such as
+ object IDs, which must vary based on the hash algorithm.
+
+ Certain fixed values, such as hash sizes and common placeholder
+ object IDs, can be loaded with test_oid_init (described above).
+
+ - test_oid <key>
+
+ This function looks up a value for the hash algorithm in use, based
+ on the key given. The value must have been loaded using
+ test_oid_init or test_oid_cache. Providing an unknown key is an
+ error.
+
Prerequisites
-------------
git update-ref $m $D
cat >.git/logs/$m <<EOF
- 0000000000000000000000000000000000000000 $C $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150320 -0500
+ $Z $C $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150320 -0500
$C $A $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150350 -0500
$A $B $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150380 -0500
$F $Z $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150680 -0500
test_cmp expect actual
'
+test_expect_success 'stdin update symref works flag --no-deref' '
+ git symbolic-ref TESTSYMREFONE $b &&
+ git symbolic-ref TESTSYMREFTWO $b &&
+ cat >stdin <<-EOF &&
+ update TESTSYMREFONE $a $b
+ update TESTSYMREFTWO $a $b
+ EOF
+ git update-ref --no-deref --stdin <stdin &&
+ git rev-parse TESTSYMREFONE TESTSYMREFTWO >expect &&
+ git rev-parse $a $a >actual &&
+ test_cmp expect actual &&
+ git rev-parse $m~1 >expect &&
+ git rev-parse $b >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'stdin delete symref works flag --no-deref' '
+ git symbolic-ref TESTSYMREFONE $b &&
+ git symbolic-ref TESTSYMREFTWO $b &&
+ cat >stdin <<-EOF &&
+ delete TESTSYMREFONE $b
+ delete TESTSYMREFTWO $b
+ EOF
+ git update-ref --no-deref --stdin <stdin &&
+ test_must_fail git rev-parse --verify -q TESTSYMREFONE &&
+ test_must_fail git rev-parse --verify -q TESTSYMREFTWO &&
+ git rev-parse $m~1 >expect &&
+ git rev-parse $b >actual &&
+ test_cmp expect actual
+'
+
test_expect_success 'stdin delete ref works with right old value' '
echo "delete $b $m~1" >stdin &&
git update-ref --stdin <stdin &&
function name(n) {
if (n == 0) return "RESET";
if (n == 1) return "BOLD";
+ if (n == 2) return "FAINT";
+ if (n == 3) return "ITALIC";
if (n == 7) return "REVERSE";
if (n == 30) return "BLACK";
if (n == 31) return "RED";
}
'
}
+
+ # Set the hash algorithm in use to $1. Only useful when testing the testsuite.
+ test_set_hash () {
+ test_hash_algo="$1"
+ }
+
+ # Detect the hash algorithm in use.
+ test_detect_hash () {
+ # Currently we only support SHA-1, but in the future this function will
+ # actually detect the algorithm in use.
+ test_hash_algo='sha1'
+ }
+
+ # Load common hash metadata and common placeholder object IDs for use with
+ # test_oid.
+ test_oid_init () {
+ test -n "$test_hash_algo" || test_detect_hash &&
+ test_oid_cache <"$TEST_DIRECTORY/oid-info/hash-info" &&
+ test_oid_cache <"$TEST_DIRECTORY/oid-info/oid"
+ }
+
+ # Load key-value pairs from stdin suitable for use with test_oid. Blank lines
+ # and lines starting with "#" are ignored. Keys must be shell identifier
+ # characters.
+ #
+ # Examples:
+ # rawsz sha1:20
+ # rawsz sha256:32
+ test_oid_cache () {
+ local tag rest k v &&
+
+ { test -n "$test_hash_algo" || test_detect_hash; } &&
+ while read tag rest
+ do
+ case $tag in
+ \#*)
+ continue;;
+ ?*)
+ # non-empty
+ ;;
+ *)
+ # blank line
+ continue;;
+ esac &&
+
+ k="${rest%:*}" &&
+ v="${rest#*:}" &&
+
+ if ! expr "$k" : '[a-z0-9][a-z0-9]*$' >/dev/null
+ then
+ error 'bug in the test script: bad hash algorithm'
+ fi &&
+ eval "test_oid_${k}_$tag=\"\$v\""
+ done
+ }
+
+ # Look up a per-hash value based on a key ($1). The value must have been loaded
+ # by test_oid_init or test_oid_cache.
+ test_oid () {
+ local var="test_oid_${test_hash_algo}_$1" &&
+
+ # If the variable is unset, we must be missing an entry for this
+ # key-hash pair, so exit with an error.
+ if eval "test -z \"\${$var+set}\""
+ then
+ error "bug in the test script: undefined key '$1'" >&2
+ fi &&
+ eval "printf '%s' \"\${$var}\""
+ }