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-rwxr-xr-xt/t3211-peel-ref.sh77
1 files changed, 77 insertions, 0 deletions
diff --git a/t/t3211-peel-ref.sh b/t/t3211-peel-ref.sh
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+++ b/t/t3211-peel-ref.sh
@@ -0,0 +1,77 @@
+#!/bin/sh
+
+test_description='tests for the peel_ref optimization of packed-refs'
+GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
+export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
+
+TEST_PASSES_SANITIZE_LEAK=true
+. ./test-lib.sh
+
+test_expect_success 'create annotated tag in refs/tags' '
+ test_commit base &&
+ git tag -m annotated foo
+'
+
+test_expect_success 'create annotated tag outside of refs/tags' '
+ git update-ref refs/outside/foo refs/tags/foo
+'
+
+# This matches show-ref's output
+print_ref() {
+ echo "$(git rev-parse "$1") $1"
+}
+
+test_expect_success 'set up expected show-ref output' '
+ {
+ print_ref "refs/heads/main" &&
+ print_ref "refs/outside/foo" &&
+ print_ref "refs/outside/foo^{}" &&
+ print_ref "refs/tags/base" &&
+ print_ref "refs/tags/foo" &&
+ print_ref "refs/tags/foo^{}"
+ } >expect
+'
+
+test_expect_success 'refs are peeled outside of refs/tags (loose)' '
+ git show-ref -d >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'refs are peeled outside of refs/tags (packed)' '
+ git pack-refs --all &&
+ git show-ref -d >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'create old-style pack-refs without fully-peeled' '
+ # Git no longer writes without fully-peeled, so we just write our own
+ # from scratch; we could also munge the existing file to remove the
+ # fully-peeled bits, but that seems even more prone to failure,
+ # especially if the format ever changes again. At least this way we
+ # know we are emulating exactly what an older git would have written.
+ {
+ echo "# pack-refs with: peeled " &&
+ print_ref "refs/heads/main" &&
+ print_ref "refs/outside/foo" &&
+ print_ref "refs/tags/base" &&
+ print_ref "refs/tags/foo" &&
+ echo "^$(git rev-parse "refs/tags/foo^{}")"
+ } >tmp &&
+ mv tmp .git/packed-refs
+'
+
+test_expect_success 'refs are peeled outside of refs/tags (old packed)' '
+ git show-ref -d >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'peeled refs survive deletion of packed ref' '
+ git pack-refs --all &&
+ cp .git/packed-refs fully-peeled &&
+ git branch yadda &&
+ git pack-refs --all &&
+ git branch -d yadda &&
+ test_cmp fully-peeled .git/packed-refs
+'
+
+test_done