git stash: avoid data loss when "git stash save" kills a directory

diff --git a/t/t6019-rev-list-ancestry-path.sh b/t/t6019-rev-list-ancestry-path.sh
index dd5b0e55d26b0f9258ae47425050083abe385fc0..dabebaee0b7b474387d4bc9b466b969624822d6d 100755 (executable)
--- a/t/t6019-rev-list-ancestry-path.sh
+++ b/t/t6019-rev-list-ancestry-path.sh
@@ -16,6 +16,10 @@ test_description='--ancestry-path'
 #
 #  F...I                 == F G H I
 #  --ancestry-path F...I == F H I
+#
+#  G..M -- G.t                 == [nothing - was dropped in "-s ours" merge L]
+#  --ancestry-path G..M -- G.t == L
+#  --ancestry-path --simplify-merges G^..M -- G.t == G L
 
 . ./test-lib.sh
 
@@ -89,6 +93,29 @@ test_expect_success 'rev-list --ancestry-path F...I' '
        test_cmp expect actual
 '
 
+# G.t is dropped in an "-s ours" merge
+test_expect_success 'rev-list G..M -- G.t' '
+       >expect &&
+       git rev-list --format=%s G..M -- G.t |
+       sed -e "/^commit /d" >actual &&
+       test_cmp expect actual
+'
+
+test_expect_success 'rev-list --ancestry-path G..M -- G.t' '
+       echo L >expect &&
+       git rev-list --ancestry-path --format=%s G..M -- G.t |
+       sed -e "/^commit /d" >actual &&
+       test_cmp expect actual
+'
+
+test_expect_success 'rev-list --ancestry-path --simplify-merges G^..M -- G.t' '
+       for c in G L; do echo $c; done >expect &&
+       git rev-list --ancestry-path --simplify-merges --format=%s G^..M -- G.t |
+       sed -e "/^commit /d" |
+       sort >actual &&
+       test_cmp expect actual
+'
+
 #   b---bc
 #  / \ /
 # a   X