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[PATCH] Add the merge test Linus called "test script from hell". This is an adaptation to the test framework of a historic test that was used before three way merge form of read-tree was introduced, and subsequently used to validate the read-tree -m merge works correctly. It covers all the tricky cases known back then and also have been updated to cover conflicting files/directories cases since then. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Petr Baudis <pasky@ucw.cz>
2005-05-14 08:46:46 +00:00
#!/bin/sh
#
# Copyright (c) 2005 Junio C Hamano
#
test_description='Three way merge with read-tree -m
This test tries three-way merge with read-tree -m
There is one ancestor (called O for Original) and two branches A
and B derived from it. We want to do a 3-way merge between A and
B, using O as the common ancestor.
merge A O B
Decisions are made by comparing contents of O, A and B pathname
by pathname. The result is determined by the following guiding
principle:
- If only A does something to it and B does not touch it, take
whatever A does.
- If only B does something to it and A does not touch it, take
whatever B does.
- If both A and B does something but in the same way, take
whatever they do.
- If A and B does something but different things, we need a
3-way merge:
- We cannot do anything about the following cases:
* O does not have it. A and B both must be adding to the
same path independently.
* A deletes it. B must be modifying.
- Otherwise, A and B are modifying. Run 3-way merge.
First, the case matrix.
- Vertical axis is for A'\''s actions.
- Horizontal axis is for B'\''s actions.
.----------------------------------------------------------------.
| A B | No Action | Delete | Modify | Add |
|------------+------------+------------+------------+------------|
| No Action | | | | |
| | select O | delete | select B | select B |
| | | | | |
|------------+------------+------------+------------+------------|
| Delete | | | ********** | can |
| | delete | delete | merge | not |
| | | | | happen |
|------------+------------+------------+------------+------------|
| Modify | | ********** | ?????????? | can |
| | select A | merge | select A=B | not |
| | | | merge | happen |
|------------+------------+------------+------------+------------|
| Add | | can | can | ?????????? |
| | select A | not | not | select A=B |
| | | happen | happen | merge |
.----------------------------------------------------------------.
In addition:
SS: a special case of MM, where A and B makes the same modification.
LL: a special case of AA, where A and B creates the same file.
TT: a special case of MM, where A and B makes mergeable changes.
DF: a special case, where A makes a directory and B makes a file.
'
. ./test-lib.sh
Teach read-tree the -n|--dry-run option The option can be used to check if read-tree with the same set of other options like "-m" and "-u" would succeed without actually changing either the index or the working tree. The relevant tests in the t10?? range were extended to do a read-tree -n before the real read-tree to make sure neither the index nor any local files were changed with -n and the same exit code as without -n is returned. The helper functions added for that purpose reside in the new t/lib-read-tree.sh file. The only exception is #13 in t1004 ("unlinking an un-unlink-able symlink"). As this is an issue of wrong directory permissions it is not detected with -n. Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-25 20:10:41 +00:00
. "$TEST_DIRECTORY"/lib-read-tree.sh
tests: use $TEST_DIRECTORY to refer to the t/ directory Many test scripts assumed that they will start in a 'trash' subdirectory that is a single level down from the t/ directory, and referred to their test vector files by asking for files like "../t9999/expect". This will break if we move the 'trash' subdirectory elsewhere. To solve this, we earlier introduced "$TEST_DIRECTORY" so that they can refer to t/ directory reliably. This finally makes all the tests use it to refer to the outside environment. With this patch, and a one-liner not included here (because it would contradict with what Dscho really wants to do): | diff --git a/t/test-lib.sh b/t/test-lib.sh | index 70ea7e0..60e69e4 100644 | --- a/t/test-lib.sh | +++ b/t/test-lib.sh | @@ -485,7 +485,7 @@ fi | . ../GIT-BUILD-OPTIONS | | # Test repository | -test="trash directory" | +test="trash directory/another level/yet another" | rm -fr "$test" || { | trap - exit | echo >&5 "FATAL: Cannot prepare test area" all the tests still pass, but we would want extra sets of eyeballs on this type of change to really make sure. [jc: with help from Stephan Beyer on http-push tests I do not run myself; credits for locating silly quoting errors go to Olivier Marin.] Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-08 09:26:28 +00:00
. "$TEST_DIRECTORY"/lib-read-tree-m-3way.sh
[PATCH] Add the merge test Linus called "test script from hell". This is an adaptation to the test framework of a historic test that was used before three way merge form of read-tree was introduced, and subsequently used to validate the read-tree -m merge works correctly. It covers all the tricky cases known back then and also have been updated to cover conflicting files/directories cases since then. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Petr Baudis <pasky@ucw.cz>
2005-05-14 08:46:46 +00:00
################################################################
[PATCH] Finish making --emu23 equivalent to pure 2-way merge. This adds #3ALT rule (and #2ALT rule for symmetry) to the read-tree 3-way merge logic that collapses paths that are added only in one branch and not in the other internally. This makes --emu23 to succeed in the last remaining case where the pure 2-way merge succeeded and earlier one failed. Running diff between t1001 and t1005 test scripts shows that the only difference between the two is that --emu23 can leave the states into separate stages so that the user can use usual 3-way merge resolution techniques to carry forward the local changes when pure 2-way merge would have refused to run. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-11 09:50:51 +00:00
# Trivial "majority when 3 stages exist" merge plus #2ALT, #3ALT
# and #5ALT trivial merges.
[PATCH] Add the merge test Linus called "test script from hell". This is an adaptation to the test framework of a historic test that was used before three way merge form of read-tree was introduced, and subsequently used to validate the read-tree -m merge works correctly. It covers all the tricky cases known back then and also have been updated to cover conflicting files/directories cases since then. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Petr Baudis <pasky@ucw.cz>
2005-05-14 08:46:46 +00:00
cat >expected <<\EOF
[PATCH] Make ls-* output consistent with diff-* output format. Use SP as the column separator except the ones before path which uses TAB, to make the output format consistent across ls-* and diff-* commands. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-26 21:38:19 +00:00
100644 X 2 AA
100644 X 3 AA
[PATCH] Finish making --emu23 equivalent to pure 2-way merge. This adds #3ALT rule (and #2ALT rule for symmetry) to the read-tree 3-way merge logic that collapses paths that are added only in one branch and not in the other internally. This makes --emu23 to succeed in the last remaining case where the pure 2-way merge succeeded and earlier one failed. Running diff between t1001 and t1005 test scripts shows that the only difference between the two is that --emu23 can leave the states into separate stages so that the user can use usual 3-way merge resolution techniques to carry forward the local changes when pure 2-way merge would have refused to run. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-11 09:50:51 +00:00
100644 X 0 AN
[PATCH] Make ls-* output consistent with diff-* output format. Use SP as the column separator except the ones before path which uses TAB, to make the output format consistent across ls-* and diff-* commands. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-26 21:38:19 +00:00
100644 X 1 DD
100644 X 3 DF
100644 X 2 DF/DF
100644 X 1 DM
100644 X 3 DM
100644 X 1 DN
100644 X 3 DN
[PATCH] read-tree: fix too strong index requirement #5ALT This fixes too strong index requirement 3-way merge enforces in one case: the same file is added in both branches. In this case, the original code insisted that if the index file has that path, it must match our branch and be up-to-date. However in this particular case, it only has to match it, and can be dirty. We just need to make sure that we keep the work-tree copy instead of checking out the merge result. The resolution of such a path, however, cannot be left to outside script, because we will not keep the original stage0 entries for unmerged paths when read-tree finishes, and at that point, the knowledge of "if we resolve it to match the new file added in both branches, the merge succeeds and the work tree would not lose information, but we should _not_ update the work tree from the resulting index file" is lost. For this reason, the now code needs to resolve this case (#5ALT) internally. This affects some existing tests in the test suite, but all in positive ways. In t1000 (3-way test), this #5ALT case now gets one stage0 entry, instead of an identical stage2 and stage3 entry pair, for such a path, and one test that checked for merge failure (because the test assumed the "stricter-than-necessary" behaviour) does not have to fail anymore. In t1005 (emu23 test), two tests that involves a case where the work tree already had a change introduced in the upstream (aka "merged head"), the merge succeeds instead of failing. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-11 01:37:47 +00:00
100644 X 0 LL
[PATCH] Make ls-* output consistent with diff-* output format. Use SP as the column separator except the ones before path which uses TAB, to make the output format consistent across ls-* and diff-* commands. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-26 21:38:19 +00:00
100644 X 1 MD
100644 X 2 MD
100644 X 1 MM
100644 X 2 MM
100644 X 3 MM
100644 X 0 MN
[PATCH] Finish making --emu23 equivalent to pure 2-way merge. This adds #3ALT rule (and #2ALT rule for symmetry) to the read-tree 3-way merge logic that collapses paths that are added only in one branch and not in the other internally. This makes --emu23 to succeed in the last remaining case where the pure 2-way merge succeeded and earlier one failed. Running diff between t1001 and t1005 test scripts shows that the only difference between the two is that --emu23 can leave the states into separate stages so that the user can use usual 3-way merge resolution techniques to carry forward the local changes when pure 2-way merge would have refused to run. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-11 09:50:51 +00:00
100644 X 0 NA
[PATCH] Make ls-* output consistent with diff-* output format. Use SP as the column separator except the ones before path which uses TAB, to make the output format consistent across ls-* and diff-* commands. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-26 21:38:19 +00:00
100644 X 1 ND
100644 X 2 ND
100644 X 0 NM
100644 X 0 NN
100644 X 0 SS
100644 X 1 TT
100644 X 2 TT
100644 X 3 TT
100644 X 2 Z/AA
100644 X 3 Z/AA
[PATCH] Finish making --emu23 equivalent to pure 2-way merge. This adds #3ALT rule (and #2ALT rule for symmetry) to the read-tree 3-way merge logic that collapses paths that are added only in one branch and not in the other internally. This makes --emu23 to succeed in the last remaining case where the pure 2-way merge succeeded and earlier one failed. Running diff between t1001 and t1005 test scripts shows that the only difference between the two is that --emu23 can leave the states into separate stages so that the user can use usual 3-way merge resolution techniques to carry forward the local changes when pure 2-way merge would have refused to run. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-11 09:50:51 +00:00
100644 X 0 Z/AN
[PATCH] Make ls-* output consistent with diff-* output format. Use SP as the column separator except the ones before path which uses TAB, to make the output format consistent across ls-* and diff-* commands. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-26 21:38:19 +00:00
100644 X 1 Z/DD
100644 X 1 Z/DM
100644 X 3 Z/DM
100644 X 1 Z/DN
100644 X 3 Z/DN
100644 X 1 Z/MD
100644 X 2 Z/MD
100644 X 1 Z/MM
100644 X 2 Z/MM
100644 X 3 Z/MM
100644 X 0 Z/MN
[PATCH] Finish making --emu23 equivalent to pure 2-way merge. This adds #3ALT rule (and #2ALT rule for symmetry) to the read-tree 3-way merge logic that collapses paths that are added only in one branch and not in the other internally. This makes --emu23 to succeed in the last remaining case where the pure 2-way merge succeeded and earlier one failed. Running diff between t1001 and t1005 test scripts shows that the only difference between the two is that --emu23 can leave the states into separate stages so that the user can use usual 3-way merge resolution techniques to carry forward the local changes when pure 2-way merge would have refused to run. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-11 09:50:51 +00:00
100644 X 0 Z/NA
[PATCH] Make ls-* output consistent with diff-* output format. Use SP as the column separator except the ones before path which uses TAB, to make the output format consistent across ls-* and diff-* commands. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-26 21:38:19 +00:00
100644 X 1 Z/ND
100644 X 2 Z/ND
100644 X 0 Z/NM
100644 X 0 Z/NN
[PATCH] Add the merge test Linus called "test script from hell". This is an adaptation to the test framework of a historic test that was used before three way merge form of read-tree was introduced, and subsequently used to validate the read-tree -m merge works correctly. It covers all the tricky cases known back then and also have been updated to cover conflicting files/directories cases since then. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Petr Baudis <pasky@ucw.cz>
2005-05-14 08:46:46 +00:00
EOF
[PATCH] Add read-tree -m 3-way merge tests. This adds a set of tests to make sure that requirements on existing cache entries are checked when a read-tree -m 3-way merge is run with an already populated index file. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-08 21:55:35 +00:00
check_result () {
t: switch $_x40 to $OID_REGEX Switch all uses of $_x40 to $OID_REGEX so that they work correctly with larger hashes. This commit was created by using the following sed command to modify all files in the t directory except t/test-lib.sh: sed -i 's/\$_x40/$OID_REGEX/g' Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-13 02:24:15 +00:00
git ls-files --stage | sed -e 's/ '"$OID_REGEX"' / X /' >current &&
t1000: modernize style The preferred style in tests is: test_expect_success 'short description then sq to open the body' ' here comes the test && and chains over many lines && with closing sq on its own line ' Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-01-10 01:45:40 +00:00
test_cmp expected current
[PATCH] Add read-tree -m 3-way merge tests. This adds a set of tests to make sure that requirements on existing cache entries are checked when a read-tree -m 3-way merge is run with an already populated index file. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-08 21:55:35 +00:00
}
[PATCH] Tests: read-tree -m test updates. This updates t1000 (basic 3-way merge test) to check the merge results for both successful cases (earlier one checked the result for only one of them). Also fixes typos in t1002 that broke '&&' chain, potentially missing a test failure before the chain got broken. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-08 09:08:54 +00:00
# This is done on an empty work directory, which is the normal
# merge person behaviour.
t1000: modernize style The preferred style in tests is: test_expect_success 'short description then sq to open the body' ' here comes the test && and chains over many lines && with closing sq on its own line ' Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-01-10 01:45:40 +00:00
test_expect_success '3-way merge with git read-tree -m, empty cache' '
rm -fr [NDMALTS][NDMALTSF] Z &&
rm .git/index &&
read_tree_must_succeed -m $tree_O $tree_A $tree_B &&
check_result
'
[PATCH] Tests: read-tree -m test updates. This updates t1000 (basic 3-way merge test) to check the merge results for both successful cases (earlier one checked the result for only one of them). Also fixes typos in t1002 that broke '&&' chain, potentially missing a test failure before the chain got broken. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-08 09:08:54 +00:00
# This starts out with the first head, which is the normal
# patch submitter behaviour.
t1000: modernize style The preferred style in tests is: test_expect_success 'short description then sq to open the body' ' here comes the test && and chains over many lines && with closing sq on its own line ' Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-01-10 01:45:40 +00:00
test_expect_success '3-way merge with git read-tree -m, match H' '
rm -fr [NDMALTS][NDMALTSF] Z &&
rm .git/index &&
read_tree_must_succeed $tree_A &&
git checkout-index -f -u -a &&
read_tree_must_succeed -m $tree_O $tree_A $tree_B &&
check_result
'
[PATCH] Add read-tree -m 3-way merge tests. This adds a set of tests to make sure that requirements on existing cache entries are checked when a read-tree -m 3-way merge is run with an already populated index file. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-08 21:55:35 +00:00
: <<\END_OF_CASE_TABLE
We have so far tested only empty index and clean-and-matching-A index
case which are trivial. Make sure index requirements are also
Update the case table in t/t1000. It still talked about "the proposed alternative semantics" but we have used those alternative semantics for quite some time. Update them to avoid confusion. Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-09-28 19:56:18 +00:00
checked.
[PATCH] Add read-tree -m 3-way merge tests. This adds a set of tests to make sure that requirements on existing cache entries are checked when a read-tree -m 3-way merge is run with an already populated index file. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-08 21:55:35 +00:00
Rewrite "git-frotz" to "git frotz" This uses the remove-dashes target to replace "git-frotz" to "git frotz". Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-07-03 05:52:14 +00:00
"git read-tree -m O A B"
[PATCH] Add read-tree -m 3-way merge tests. This adds a set of tests to make sure that requirements on existing cache entries are checked when a read-tree -m 3-way merge is run with an already populated index file. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-08 21:55:35 +00:00
O A B result index requirements
-------------------------------------------------------------------
1 missing missing missing - must not exist.
------------------------------------------------------------------
Update the case table in t/t1000. It still talked about "the proposed alternative semantics" but we have used those alternative semantics for quite some time. Update them to avoid confusion. Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-09-28 19:56:18 +00:00
2 missing missing exists take B* must match B, if exists.
[PATCH] Add read-tree -m 3-way merge tests. This adds a set of tests to make sure that requirements on existing cache entries are checked when a read-tree -m 3-way merge is run with an already populated index file. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-08 21:55:35 +00:00
------------------------------------------------------------------
Update the case table in t/t1000. It still talked about "the proposed alternative semantics" but we have used those alternative semantics for quite some time. Update them to avoid confusion. Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-09-28 19:56:18 +00:00
3 missing exists missing take A* must match A, if exists.
[PATCH] Add read-tree -m 3-way merge tests. This adds a set of tests to make sure that requirements on existing cache entries are checked when a read-tree -m 3-way merge is run with an already populated index file. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-08 21:55:35 +00:00
------------------------------------------------------------------
4 missing exists A!=B no merge must match A and be
up-to-date, if exists.
------------------------------------------------------------------
Update the case table in t/t1000. It still talked about "the proposed alternative semantics" but we have used those alternative semantics for quite some time. Update them to avoid confusion. Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-09-28 19:56:18 +00:00
5 missing exists A==B take A must match A, if exists.
[PATCH] Add read-tree -m 3-way merge tests. This adds a set of tests to make sure that requirements on existing cache entries are checked when a read-tree -m 3-way merge is run with an already populated index file. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-08 21:55:35 +00:00
------------------------------------------------------------------
Update the case table in t/t1000. It still talked about "the proposed alternative semantics" but we have used those alternative semantics for quite some time. Update them to avoid confusion. Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-09-28 19:56:18 +00:00
6 exists missing missing remove must not exist.
[PATCH] Add read-tree -m 3-way merge tests. This adds a set of tests to make sure that requirements on existing cache entries are checked when a read-tree -m 3-way merge is run with an already populated index file. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-08 21:55:35 +00:00
------------------------------------------------------------------
7 exists missing O!=B no merge must not exist.
------------------------------------------------------------------
Update the case table in t/t1000. It still talked about "the proposed alternative semantics" but we have used those alternative semantics for quite some time. Update them to avoid confusion. Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-09-28 19:56:18 +00:00
8 exists missing O==B remove must not exist.
[PATCH] Add read-tree -m 3-way merge tests. This adds a set of tests to make sure that requirements on existing cache entries are checked when a read-tree -m 3-way merge is run with an already populated index file. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-08 21:55:35 +00:00
------------------------------------------------------------------
9 exists O!=A missing no merge must match A and be
up-to-date, if exists.
------------------------------------------------------------------
t1000: fix case table. Case #10 is not handled with unpack-trees.c:threeway_merge() internally, unless under the agressive rule, and it is not a bug. As the test expects, ND (one side did not do anything, other side deleted) case was meant to be handled by the caller's policy (e.g. git-merge-one-file or git-merge-recursive). Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-04-07 12:42:01 +00:00
10 exists O==A missing no merge must match A
[PATCH] Add read-tree -m 3-way merge tests. This adds a set of tests to make sure that requirements on existing cache entries are checked when a read-tree -m 3-way merge is run with an already populated index file. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-08 21:55:35 +00:00
------------------------------------------------------------------
11 exists O!=A O!=B no merge must match A and be
A!=B up-to-date, if exists.
------------------------------------------------------------------
12 exists O!=A O!=B take A must match A, if exists.
A==B
------------------------------------------------------------------
13 exists O!=A O==B take A must match A, if exists.
------------------------------------------------------------------
Update the case table in t/t1000. It still talked about "the proposed alternative semantics" but we have used those alternative semantics for quite some time. Update them to avoid confusion. Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-09-28 19:56:18 +00:00
14 exists O==A O!=B take B if exists, must either (1)
[PATCH] Add read-tree -m 3-way merge tests. This adds a set of tests to make sure that requirements on existing cache entries are checked when a read-tree -m 3-way merge is run with an already populated index file. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-08 21:55:35 +00:00
match A and be up-to-date,
or (2) match B.
------------------------------------------------------------------
15 exists O==A O==B take B must match A if exists.
[PATCH] Add debugging help for case #16 to read-tree.c This will help us detect if real-world example merges have multiple merge-base candidates and one of them matches one head while another matches the other head. Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-09-06 19:53:56 +00:00
------------------------------------------------------------------
16 exists O==A O==B barf must match A if exists.
*multi* in one in another
[PATCH] Add read-tree -m 3-way merge tests. This adds a set of tests to make sure that requirements on existing cache entries are checked when a read-tree -m 3-way merge is run with an already populated index file. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-08 21:55:35 +00:00
-------------------------------------------------------------------
Update the case table in t/t1000. It still talked about "the proposed alternative semantics" but we have used those alternative semantics for quite some time. Update them to avoid confusion. Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-09-28 19:56:18 +00:00
Note: we need to be careful in case 2 and 3. The tree A may contain
DF (file) when tree B require DF to be a directory by having DF/DF
(file).
[PATCH] Add read-tree -m 3-way merge tests. This adds a set of tests to make sure that requirements on existing cache entries are checked when a read-tree -m 3-way merge is run with an already populated index file. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-08 21:55:35 +00:00
END_OF_CASE_TABLE
t1000: modernize style The preferred style in tests is: test_expect_success 'short description then sq to open the body' ' here comes the test && and chains over many lines && with closing sq on its own line ' Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-01-10 01:45:40 +00:00
test_expect_success '1 - must not have an entry not in A.' '
rm -f .git/index XX &&
echo XX >XX &&
git update-index --add XX &&
read_tree_must_fail -m $tree_O $tree_A $tree_B
'
test_expect_success '2 - must match B in !O && !A && B case.' '
rm -f .git/index NA &&
cp .orig-B/NA NA &&
git update-index --add NA &&
read_tree_must_succeed -m $tree_O $tree_A $tree_B
'
test_expect_success '2 - matching B alone is OK in !O && !A && B case.' '
rm -f .git/index NA &&
cp .orig-B/NA NA &&
git update-index --add NA &&
echo extra >>NA &&
read_tree_must_succeed -m $tree_O $tree_A $tree_B
'
test_expect_success '3 - must match A in !O && A && !B case.' '
rm -f .git/index AN &&
cp .orig-A/AN AN &&
git update-index --add AN &&
read_tree_must_succeed -m $tree_O $tree_A $tree_B &&
check_result
'
test_expect_success '3 - matching A alone is OK in !O && A && !B case.' '
rm -f .git/index AN &&
cp .orig-A/AN AN &&
git update-index --add AN &&
echo extra >>AN &&
read_tree_must_succeed -m $tree_O $tree_A $tree_B
'
test_expect_success '3 (fail) - must match A in !O && A && !B case.' '
rm -f .git/index AN &&
cp .orig-A/AN AN &&
echo extra >>AN &&
git update-index --add AN &&
read_tree_must_fail -m $tree_O $tree_A $tree_B
'
test_expect_success '4 - must match and be up-to-date in !O && A && B && A!=B case.' '
rm -f .git/index AA &&
cp .orig-A/AA AA &&
git update-index --add AA &&
read_tree_must_succeed -m $tree_O $tree_A $tree_B &&
check_result
'
test_expect_success '4 (fail) - must match and be up-to-date in !O && A && B && A!=B case.' '
rm -f .git/index AA &&
cp .orig-A/AA AA &&
git update-index --add AA &&
echo extra >>AA &&
read_tree_must_fail -m $tree_O $tree_A $tree_B
'
test_expect_success '4 (fail) - must match and be up-to-date in !O && A && B && A!=B case.' '
rm -f .git/index AA &&
cp .orig-A/AA AA &&
echo extra >>AA &&
git update-index --add AA &&
read_tree_must_fail -m $tree_O $tree_A $tree_B
'
test_expect_success '5 - must match in !O && A && B && A==B case.' '
rm -f .git/index LL &&
cp .orig-A/LL LL &&
git update-index --add LL &&
read_tree_must_succeed -m $tree_O $tree_A $tree_B &&
check_result
'
test_expect_success '5 - must match in !O && A && B && A==B case.' '
rm -f .git/index LL &&
cp .orig-A/LL LL &&
git update-index --add LL &&
echo extra >>LL &&
read_tree_must_succeed -m $tree_O $tree_A $tree_B &&
check_result
'
test_expect_success '5 (fail) - must match A in !O && A && B && A==B case.' '
rm -f .git/index LL &&
cp .orig-A/LL LL &&
echo extra >>LL &&
git update-index --add LL &&
read_tree_must_fail -m $tree_O $tree_A $tree_B
'
test_expect_success '6 - must not exist in O && !A && !B case' '
rm -f .git/index DD &&
echo DD >DD &&
git update-index --add DD &&
read_tree_must_fail -m $tree_O $tree_A $tree_B
'
test_expect_success '7 - must not exist in O && !A && B && O!=B case' '
rm -f .git/index DM &&
cp .orig-B/DM DM &&
git update-index --add DM &&
read_tree_must_fail -m $tree_O $tree_A $tree_B
'
test_expect_success '8 - must not exist in O && !A && B && O==B case' '
rm -f .git/index DN &&
cp .orig-B/DN DN &&
git update-index --add DN &&
read_tree_must_fail -m $tree_O $tree_A $tree_B
'
test_expect_success '9 - must match and be up-to-date in O && A && !B && O!=A case' '
rm -f .git/index MD &&
cp .orig-A/MD MD &&
git update-index --add MD &&
read_tree_must_succeed -m $tree_O $tree_A $tree_B &&
check_result
'
test_expect_success '9 (fail) - must match and be up-to-date in O && A && !B && O!=A case' '
rm -f .git/index MD &&
cp .orig-A/MD MD &&
git update-index --add MD &&
echo extra >>MD &&
read_tree_must_fail -m $tree_O $tree_A $tree_B
'
test_expect_success '9 (fail) - must match and be up-to-date in O && A && !B && O!=A case' '
rm -f .git/index MD &&
cp .orig-A/MD MD &&
echo extra >>MD &&
git update-index --add MD &&
read_tree_must_fail -m $tree_O $tree_A $tree_B
'
test_expect_success '10 - must match and be up-to-date in O && A && !B && O==A case' '
rm -f .git/index ND &&
cp .orig-A/ND ND &&
git update-index --add ND &&
read_tree_must_succeed -m $tree_O $tree_A $tree_B &&
check_result
'
test_expect_success '10 (fail) - must match and be up-to-date in O && A && !B && O==A case' '
rm -f .git/index ND &&
cp .orig-A/ND ND &&
git update-index --add ND &&
echo extra >>ND &&
read_tree_must_fail -m $tree_O $tree_A $tree_B
'
test_expect_success '10 (fail) - must match and be up-to-date in O && A && !B && O==A case' '
rm -f .git/index ND &&
cp .orig-A/ND ND &&
echo extra >>ND &&
git update-index --add ND &&
read_tree_must_fail -m $tree_O $tree_A $tree_B
'
test_expect_success '11 - must match and be up-to-date in O && A && B && O!=A && O!=B && A!=B case' '
rm -f .git/index MM &&
cp .orig-A/MM MM &&
git update-index --add MM &&
read_tree_must_succeed -m $tree_O $tree_A $tree_B &&
check_result
'
test_expect_success '11 (fail) - must match and be up-to-date in O && A && B && O!=A && O!=B && A!=B case' '
rm -f .git/index MM &&
cp .orig-A/MM MM &&
git update-index --add MM &&
echo extra >>MM &&
read_tree_must_fail -m $tree_O $tree_A $tree_B
'
test_expect_success '11 (fail) - must match and be up-to-date in O && A && B && O!=A && O!=B && A!=B case' '
rm -f .git/index MM &&
cp .orig-A/MM MM &&
echo extra >>MM &&
git update-index --add MM &&
read_tree_must_fail -m $tree_O $tree_A $tree_B
'
test_expect_success '12 - must match A in O && A && B && O!=A && A==B case' '
rm -f .git/index SS &&
cp .orig-A/SS SS &&
git update-index --add SS &&
read_tree_must_succeed -m $tree_O $tree_A $tree_B &&
check_result
'
test_expect_success '12 - must match A in O && A && B && O!=A && A==B case' '
rm -f .git/index SS &&
cp .orig-A/SS SS &&
git update-index --add SS &&
echo extra >>SS &&
read_tree_must_succeed -m $tree_O $tree_A $tree_B &&
check_result
'
test_expect_success '12 (fail) - must match A in O && A && B && O!=A && A==B case' '
rm -f .git/index SS &&
cp .orig-A/SS SS &&
echo extra >>SS &&
git update-index --add SS &&
read_tree_must_fail -m $tree_O $tree_A $tree_B
'
test_expect_success '13 - must match A in O && A && B && O!=A && O==B case' '
rm -f .git/index MN &&
cp .orig-A/MN MN &&
git update-index --add MN &&
read_tree_must_succeed -m $tree_O $tree_A $tree_B &&
check_result
'
test_expect_success '13 - must match A in O && A && B && O!=A && O==B case' '
rm -f .git/index MN &&
cp .orig-A/MN MN &&
git update-index --add MN &&
echo extra >>MN &&
read_tree_must_succeed -m $tree_O $tree_A $tree_B &&
check_result
'
test_expect_success '14 - must match and be up-to-date in O && A && B && O==A && O!=B case' '
rm -f .git/index NM &&
cp .orig-A/NM NM &&
git update-index --add NM &&
read_tree_must_succeed -m $tree_O $tree_A $tree_B &&
check_result
'
test_expect_success '14 - may match B in O && A && B && O==A && O!=B case' '
rm -f .git/index NM &&
cp .orig-B/NM NM &&
git update-index --add NM &&
echo extra >>NM &&
read_tree_must_succeed -m $tree_O $tree_A $tree_B &&
check_result
'
test_expect_success '14 (fail) - must match and be up-to-date in O && A && B && O==A && O!=B case' '
rm -f .git/index NM &&
cp .orig-A/NM NM &&
git update-index --add NM &&
echo extra >>NM &&
read_tree_must_fail -m $tree_O $tree_A $tree_B
'
test_expect_success '14 (fail) - must match and be up-to-date in O && A && B && O==A && O!=B case' '
rm -f .git/index NM &&
cp .orig-A/NM NM &&
echo extra >>NM &&
git update-index --add NM &&
read_tree_must_fail -m $tree_O $tree_A $tree_B
'
test_expect_success '15 - must match A in O && A && B && O==A && O==B case' '
rm -f .git/index NN &&
cp .orig-A/NN NN &&
git update-index --add NN &&
read_tree_must_succeed -m $tree_O $tree_A $tree_B &&
check_result
'
test_expect_success '15 - must match A in O && A && B && O==A && O==B case' '
rm -f .git/index NN &&
cp .orig-A/NN NN &&
git update-index --add NN &&
echo extra >>NN &&
read_tree_must_succeed -m $tree_O $tree_A $tree_B &&
check_result
'
test_expect_success '15 (fail) - must match A in O && A && B && O==A && O==B case' '
rm -f .git/index NN &&
cp .orig-A/NN NN &&
echo extra >>NN &&
git update-index --add NN &&
read_tree_must_fail -m $tree_O $tree_A $tree_B
'
test_expect_success '16 - A matches in one and B matches in another.' '
rm -f .git/index F16 &&
echo F16 >F16 &&
git update-index --add F16 &&
tree0=$(git write-tree) &&
echo E16 >F16 &&
git update-index F16 &&
tree1=$(git write-tree) &&
read_tree_must_succeed -m $tree0 $tree1 $tree1 $tree0 &&
git ls-files --stage
'
[PATCH] Add debugging help for case #16 to read-tree.c This will help us detect if real-world example merges have multiple merge-base candidates and one of them matches one head while another matches the other head. Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-09-06 19:53:56 +00:00
[PATCH] Add the merge test Linus called "test script from hell". This is an adaptation to the test framework of a historic test that was used before three way merge form of read-tree was introduced, and subsequently used to validate the read-tree -m merge works correctly. It covers all the tricky cases known back then and also have been updated to cover conflicting files/directories cases since then. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Petr Baudis <pasky@ucw.cz>
2005-05-14 08:46:46 +00:00
test_done
Reference in a new issue Copy permalink