t6019: test file dropped in -s ours merge

In preparation for upcoming TREESAME work, check the result for G.t, which is dropped in "-s ours" merge L. The default rev-list is empty, as expected - it follows the first parent path where it never existed. Unfortunately, --ancestry-path is also empty. Merges H J and L are all TREESAME to 1 parent, so are treated as TREESAME and not shown. This is clearly undesirable in the case of merge L, which dropped our G.t by taking the non-ancestry-path version. Document this as a known failure, and expect "H J L", the 3 merges along the path that had to chose G.t versions. Signed-off-by: Kevin Bracey <kevin@bracey.fi> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Kevin Bracey committed May 16, 2013 at 18:32 UTC c72424b1b5d511a346742dba62bec93a719ef1c8
1 file changed +19
t/t6019-rev-list-ancestry-path.sh
+19
@@ -16,6 +16,9 @@ test_description='--ancestry-path'
16 #
17 # F...I == F G H I
18 # --ancestry-path F...I == F H I
19 +#
20 +# G..M -- G.t == [nothing - was dropped in "-s ours" merge L]
21 +# --ancestry-path G..M -- G.t == H J L
22
23 . ./test-lib.sh
24
@@ -89,6 +92,22 @@ test_expect_success 'rev-list --ancestry-path F...I' '
92 test_cmp expect actual
93 '
94
95 +# G.t is dropped in an "-s ours" merge
96 +test_expect_success 'rev-list G..M -- G.t' '
97 + >expect &&
98 + git rev-list --format=%s G..M -- G.t |
99 + sed -e "/^commit /d" >actual &&
100 + test_cmp expect actual
101 +'
102 +
103 +test_expect_failure 'rev-list --ancestry-path G..M -- G.t' '
104 + for c in H J L; do echo $c; done >expect &&
105 + git rev-list --ancestry-path --format=%s G..M -- G.t |
106 + sed -e "/^commit /d" |
107 + sort >actual &&
108 + test_cmp expect actual
109 +'
110 +
111 # b---bc
112 # / \ /
113 # a X