git-am: Add tests for `--keep-cr`, `--no-keep-cr` and `am.keepcr`

diff --git a/t/t7700-repack.sh b/t/t7700-repack.sh
index fa4772101fda56116698f2063572ebfef8d4d46a..f4aa0547501a19fe570304e830504ff984f5a9a9 100755 (executable)
--- a/t/t7700-repack.sh
+++ b/t/t7700-repack.sh
@@ -69,7 +69,26 @@ test_expect_success 'packed obs in alt ODB are repacked even when local repo is
        done
 '
 
-test_expect_failure 'packed obs in alternate ODB kept pack are repacked' '
+test_expect_success 'packed obs in alt ODB are repacked when local repo has packs' '
+       rm -f .git/objects/pack/* &&
+       echo new_content >> file1 &&
+       git add file1 &&
+       git commit -m more_content &&
+       git repack &&
+       git repack -a -d &&
+       myidx=$(ls -1 .git/objects/pack/*.idx) &&
+       test -f "$myidx" &&
+       for p in alt_objects/pack/*.idx; do
+               git verify-pack -v $p | sed -n -e "/^[0-9a-f]\{40\}/p"
+       done | while read sha1 rest; do
+               if ! ( git verify-pack -v $myidx | grep "^$sha1" ); then
+                       echo "Missing object in local pack: $sha1"
+                       return 1
+               fi
+       done
+'
+
+test_expect_success 'packed obs in alternate ODB kept pack are repacked' '
        # swap the .keep so the commit object is in the pack with .keep
        for p in alt_objects/pack/*.pack
        do
@@ -94,7 +113,7 @@ test_expect_failure 'packed obs in alternate ODB kept pack are repacked' '
        done
 '
 
-test_expect_failure 'packed unreachable obs in alternate ODB are not loosened' '
+test_expect_success 'packed unreachable obs in alternate ODB are not loosened' '
        rm -f alt_objects/pack/*.keep &&
        mv .git/objects/pack/* alt_objects/pack/ &&
        csha1=$(git rev-parse HEAD^{commit}) &&
@@ -113,5 +132,34 @@ test_expect_failure 'packed unreachable obs in alternate ODB are not loosened' '
        test_must_fail git show $csha1
 '
 
+test_expect_success 'local packed unreachable obs that exist in alternate ODB are not loosened' '
+       echo `pwd`/alt_objects > .git/objects/info/alternates &&
+       echo "$csha1" | git pack-objects --non-empty --all --reflog pack &&
+       rm -f .git/objects/pack/* &&
+       mv pack-* .git/objects/pack/ &&
+       # The pack-objects call on the next line is equivalent to
+       # git repack -A -d without the call to prune-packed
+       git pack-objects --honor-pack-keep --non-empty --all --reflog \
+           --unpack-unreachable </dev/null pack &&
+       rm -f .git/objects/pack/* &&
+       mv pack-* .git/objects/pack/ &&
+       test 0 = $(git verify-pack -v -- .git/objects/pack/*.idx |
+               egrep "^$csha1 " | sort | uniq | wc -l) &&
+       echo > .git/objects/info/alternates &&
+       test_must_fail git show $csha1
+'
+
+test_expect_success 'objects made unreachable by grafts only are kept' '
+       test_tick &&
+       git commit --allow-empty -m "commit 4" &&
+       H0=$(git rev-parse HEAD) &&
+       H1=$(git rev-parse HEAD^) &&
+       H2=$(git rev-parse HEAD^^) &&
+       echo "$H0 $H2" > .git/info/grafts &&
+       git reflog expire --expire=now --expire-unreachable=now --all &&
+       git repack -a -d &&
+       git cat-file -t $H1
+       '
+
 test_done