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authorJunio C Hamano <gitster@pobox.com>2015-06-24 21:58:25 (GMT)
committerJunio C Hamano <gitster@pobox.com>2016-03-15 22:32:19 (GMT)
commit82efa6e27e76ecd0f52a93886bcee1b8e517a662 (patch)
tree6ad93aedc8978179b5b8d4b83d56266611f223cd /t/t4200-rerere.sh
parenta13d13700b05442855447670d7c3313f99f5da3c (diff)
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t4200: rerere a merge with two identical conflicts
When the context of multiple identical conflicts are different, two seemingly the same conflict resolution cannot be safely applied. In such a case, at least we should be able to record these two resolutions separately in the rerere database, and reuse them when we see the same conflict later. Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 't/t4200-rerere.sh')
-rwxr-xr-xt/t4200-rerere.sh74
1 files changed, 74 insertions, 0 deletions
diff --git a/t/t4200-rerere.sh b/t/t4200-rerere.sh
index c428011..6fcc6d4 100755
--- a/t/t4200-rerere.sh
+++ b/t/t4200-rerere.sh
@@ -406,4 +406,78 @@ test_expect_success 'rerere -h' '
test_i18ngrep [Uu]sage help
'
+concat_insert () {
+ last=$1
+ shift
+ cat early && printf "%s\n" "$@" && cat late "$last"
+}
+
+test_expect_failure 'multiple identical conflicts' '
+ git reset --hard &&
+
+ test_seq 1 6 >early &&
+ >late &&
+ test_seq 11 15 >short &&
+ test_seq 111 120 >long &&
+ concat_insert short >file1 &&
+ concat_insert long >file2 &&
+ git add file1 file2 &&
+ git commit -m base &&
+ git tag base &&
+ git checkout -b six.1 &&
+ concat_insert short 6.1 >file1 &&
+ concat_insert long 6.1 >file2 &&
+ git add file1 file2 &&
+ git commit -m 6.1 &&
+ git checkout -b six.2 HEAD^ &&
+ concat_insert short 6.2 >file1 &&
+ concat_insert long 6.2 >file2 &&
+ git add file1 file2 &&
+ git commit -m 6.2 &&
+
+ # At this point, six.1 and six.2
+ # - derive from common ancestor that has two files
+ # 1...6 7 11..15 (file1) and 1...6 7 111..120 (file2)
+ # - six.1 replaces these 7s with 6.1
+ # - six.2 replaces these 7s with 6.2
+
+ test_must_fail git merge six.1 &&
+
+ # Check that rerere knows that file1 and file2 have conflicts
+
+ printf "%s\n" file1 file2 >expect &&
+ git ls-files -u | sed -e "s/^.* //" | sort -u >actual &&
+ test_cmp expect actual &&
+
+ git rerere status | sort >actual &&
+ test_cmp expect actual &&
+
+ # Resolution is to replace 7 with 6.1 and 6.2 (i.e. take both)
+ concat_insert short 6.1 6.2 >file1 &&
+ concat_insert long 6.1 6.2 >file2 &&
+
+ git rerere remaining >actual &&
+ test_cmp expect actual &&
+
+ # We resolved file1 and file2
+ git rerere &&
+ >expect &&
+ git rerere remaining >actual &&
+ test_cmp expect actual &&
+
+ # Now we should be able to resolve them both
+ git reset --hard &&
+ test_must_fail git merge six.1 &&
+ git rerere &&
+
+ >expect &&
+ git rerere remaining >actual &&
+ test_cmp expect actual &&
+
+ concat_insert short 6.1 6.2 >file1.expect &&
+ concat_insert long 6.1 6.2 >file2.expect &&
+ test_cmp file1.expect file1 &&
+ test_cmp file2.expect file2
+'
+
test_done