[PATCH v2 10/10] evolve: add tests for the git-change command
From: Chris Poucet <poucet@google.com>
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Chris Poucet <poucet@google.com>
---
t/t9990-changes.sh | 148 +++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 148 insertions(+)
create mode 100755 t/t9990-changes.sh
diff --git a/t/t9990-changes.sh b/t/t9990-changes.sh
new file mode 100755
index 00000000000..11fbd8ba49c
--- /dev/null
+++ b/t/t9990-changes.sh
@@ -0,0 +1,148 @@
+#!/bin/sh
+
+test_description='git change - low level meta-commit management'
+
+. ./test-lib.sh
+
+. "$TEST_DIRECTORY"/lib-rebase.sh
+
+test_expect_success 'setup commits and meta-commits' '
+ for c in one two three
+ do
+ test_commit $c &&
+ git change update --content $c >actual 2>err &&
+ echo "Created change metas/$c" >expect &&
+ test_cmp expect actual &&
+ test_must_be_empty err &&
+ test_cmp_rev refs/metas/$c $c || return 1
+ done
+'
+
+# Check a meta-commit has the correct parents Call with the object
+# name of the meta-commit followed by pairs of type and parent
+check_meta_commit () {
+ name=$1
+ shift
+ while test $# -gt 0
+ do
+ printf '%s %s\n' $1 $(git rev-parse --verify $2)
+ shift
+ shift
+ done | sort >expect
+ git cat-file commit $name >metacommit &&
+ # commit body should consist of parent-type
+ types="$(sed -n '/^$/ {
+ :loop
+ n
+ s/^parent-type //
+ p
+ b loop
+ }' metacommit)" &&
+ while read key value
+ do
+ # TODO: don't sort the first parent
+ if test "$key" = "parent"
+ then
+ type="${types%% *}"
+ test -n "$type" || return 1
+ printf '%s %s\n' $type $value
+ types="${types#?}"
+ types="${types# }"
+ elif test "$key" = "tree"
+ then
+ test_cmp_rev "$value" $EMPTY_TREE || return 1
+ elif test -z "$key"
+ then
+ # only parse commit headers
+ break
+ fi
+ done <metacommit >actual-unsorted &&
+ test -z "$types" &&
+ sort >actual <actual-unsorted &&
+ test_cmp expect actual
+}
+
+test_expect_success 'update meta-commits after rebase' '
+ (
+ set_fake_editor &&
+ FAKE_AMEND=edited &&
+ FAKE_LINES="reword 1 pick 2 fixup 3" &&
+ export FAKE_AMEND FAKE_LINES &&
+ git rebase -i --root
+ ) &&
+
+ # update meta-commits
+ git change update --replace tags/one --content HEAD~1 >out 2>err &&
+ echo "Updated change metas/one" >expect &&
+ test_cmp expect out &&
+ test_must_be_empty err &&
+ git change update --replace tags/two --content HEAD@{2} &&
+ oid=$(git rev-parse --verify metas/two) &&
+ git change update --replace HEAD@{2} --replace tags/three \
+ --content HEAD &&
+
+ # check meta-commits
+ check_meta_commit metas/one c HEAD~1 r tags/one &&
+ check_meta_commit $oid c HEAD@{2} r tags/two &&
+ # NB this checks that "git change update" uses the meta-commit ($oid)
+ # corresponding to the replaces commit (HEAD@2 above) given on the
+ # commandline.
+ check_meta_commit metas/two c HEAD r $oid r tags/three &&
+ check_meta_commit metas/three c HEAD r $oid r tags/three
+'
+
+reset_meta_commits () {
+ for c in one two three
+ do
+ echo "update refs/metas/$c refs/tags/$c^0"
+ done | git update-ref --stdin
+}
+
+test_expect_success 'override change name' '
+ # TODO: builtin/change.c expects --change to be the full refname,
+ # ideally it would prepend refs/metas to the string given by the
+ # user.
+ git change update --change refs/metas/another-one --content one &&
+ test_cmp_rev metas/another-one one
+'
+
+test_expect_success 'non-fast forward meta-commit update refused' '
+ test_must_fail git change update --change refs/metas/one --content two \
+ >out 2>err &&
+ echo "error: non-fast-forward update to ${SQ}refs/metas/one${SQ}" \
+ >expect &&
+ test_cmp expect err &&
+ test_must_be_empty out
+'
+
+test_expect_success 'forced non-fast forward update succeeds' '
+ git change update --change refs/metas/one --content two --force \
+ >out 2>err &&
+ echo "Updated change metas/one" >expect &&
+ test_cmp expect out &&
+ test_must_be_empty err
+'
+
+test_expect_success 'list changes' '
+ cat >expect <<-\EOF &&
+metas/another-one
+metas/one
+metas/three
+metas/two
+EOF
+ git change list >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'delete change' '
+ git change delete metas/one &&
+ cat >expect <<-\EOF &&
+metas/another-one
+metas/three
+metas/two
+EOF
+ git change list >actual &&
+ test_cmp expect actual
+'
+
+test_done
--
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