![[tokkee]](http://tokkee.org/images/avatar.png){kind=avatar}
index b4656674456619b074532af531a4a66b5cc69cb0..32591f94135755847b406389aba5779e73cff5e0 100755 (executable)
echo "Myyy PRECIOUSSS" >ring
'
-test_expect_failure "Does git preserve Gollum's precious artifact?" '
+test_expect_success "Does git preserve Gollum's precious artifact?" '
test_must_fail git merge -s recursive rename-the-ring &&
# Make sure git did not delete an untracked file
git commit -m left
'
-test_expect_failure 'rename/directory conflict + clean content merge' '
+test_expect_success 'rename/directory conflict + clean content merge' '
git reset --hard &&
git reset --hard &&
git clean -fdqx &&
test -f newfile~HEAD
'
-test_expect_failure 'rename/directory conflict + content merge conflict' '
+test_expect_success 'rename/directory conflict + content merge conflict' '
git reset --hard &&
git reset --hard &&
git clean -fdqx &&
test -f sub
'
+# Test for all kinds of things that can go wrong with rename/rename (2to1):
+# Commit A: new files: a & b
+# Commit B: rename a->c, modify b
+# Commit C: rename b->c, modify a
+#
+# Merging of B & C should NOT be clean. Questions:
+# * Both a & b should be removed by the merge; are they?
+# * The two c's should contain modifications to a & b; do they?
+# * The index should contain two files, both for c; does it?
+# * The working copy should have two files, both of form c~<unique>; does it?
+# * Nothing else should be present. Is anything?
+
+test_expect_success 'setup rename/rename (2to1) + modify/modify' '
+ git rm -rf . &&
+ git clean -fdqx &&
+ rm -rf .git &&
+ git init &&
+
+ printf "1\n2\n3\n4\n5\n" >a &&
+ printf "5\n4\n3\n2\n1\n" >b &&
+ git add a b &&
+ git commit -m A &&
+ git tag A &&
+
+ git checkout -b B A &&
+ git mv a c &&
+ echo 0 >>b &&
+ git add b &&
+ git commit -m B &&
+
+ git checkout -b C A &&
+ git mv b c &&
+ echo 6 >>a &&
+ git add a &&
+ git commit -m C
+'
+
+test_expect_success 'handle rename/rename (2to1) conflict correctly' '
+ git checkout B^0 &&
+
+ test_must_fail git merge -s recursive C^0 >out &&
+ grep "CONFLICT (rename/rename)" out &&
+
+ test 2 -eq $(git ls-files -s | wc -l) &&
+ test 2 -eq $(git ls-files -u | wc -l) &&
+ test 2 -eq $(git ls-files -u c | wc -l) &&
+ test 3 -eq $(git ls-files -o | wc -l) &&
+
+ test ! -f a &&
+ test ! -f b &&
+ test -f c~HEAD &&
+ test -f c~C^0 &&
+
+ test $(git hash-object c~HEAD) = $(git rev-parse C:a) &&
+ test $(git hash-object c~C^0) = $(git rev-parse B:b)
+'
+
+# Testcase setup for simple rename/rename (1to2) conflict:
+# Commit A: new file: a
+# Commit B: rename a->b
+# Commit C: rename a->c
+test_expect_success 'setup simple rename/rename (1to2) conflict' '
+ git rm -rf . &&
+ git clean -fdqx &&
+ rm -rf .git &&
+ git init &&
+
+ echo stuff >a &&
+ git add a &&
+ test_tick &&
+ git commit -m A &&
+ git tag A &&
+
+ git checkout -b B A &&
+ git mv a b &&
+ test_tick &&
+ git commit -m B &&
+
+ git checkout -b C A &&
+ git mv a c &&
+ test_tick &&
+ git commit -m C
+'
+
+test_expect_success 'merge has correct working tree contents' '
+ git checkout C^0 &&
+
+ test_must_fail git merge -s recursive B^0 &&
+
+ test 3 -eq $(git ls-files -s | wc -l) &&
+ test 3 -eq $(git ls-files -u | wc -l) &&
+ test 0 -eq $(git ls-files -o | wc -l) &&
+
+ test $(git rev-parse :1:a) = $(git rev-parse A:a) &&
+ test $(git rev-parse :3:b) = $(git rev-parse A:a) &&
+ test $(git rev-parse :2:c) = $(git rev-parse A:a) &&
+
+ test ! -f a &&
+ test $(git hash-object b) = $(git rev-parse A:a) &&
+ test $(git hash-object c) = $(git rev-parse A:a)
+'
+
+# Testcase setup for rename/rename(1to2)/add-source conflict:
+# Commit A: new file: a
+# Commit B: rename a->b
+# Commit C: rename a->c, add completely different a
+#
+# Merging of B & C should NOT be clean; there's a rename/rename conflict
+
+test_expect_success 'setup rename/rename(1to2)/add-source conflict' '
+ git rm -rf . &&
+ git clean -fdqx &&
+ rm -rf .git &&
+ git init &&
+
+ printf "1\n2\n3\n4\n5\n6\n7\n" >a &&
+ git add a &&
+ git commit -m A &&
+ git tag A &&
+
+ git checkout -b B A &&
+ git mv a b &&
+ git commit -m B &&
+
+ git checkout -b C A &&
+ git mv a c &&
+ echo something completely different >a &&
+ git add a &&
+ git commit -m C
+'
+
+test_expect_failure 'detect conflict with rename/rename(1to2)/add-source merge' '
+ git checkout B^0 &&
+
+ test_must_fail git merge -s recursive C^0 &&
+
+ test 4 -eq $(git ls-files -s | wc -l) &&
+ test 0 -eq $(git ls-files -o | wc -l) &&
+
+ test $(git rev-parse 3:a) = $(git rev-parse C:a) &&
+ test $(git rev-parse 1:a) = $(git rev-parse A:a) &&
+ test $(git rev-parse 2:b) = $(git rev-parse B:b) &&
+ test $(git rev-parse 3:c) = $(git rev-parse C:c) &&
+
+ test -f a &&
+ test -f b &&
+ test -f c
+'
+
+test_expect_success 'setup rename/rename(1to2)/add-source resolvable conflict' '
+ git rm -rf . &&
+ git clean -fdqx &&
+ rm -rf .git &&
+ git init &&
+
+ >a &&
+ git add a &&
+ test_tick &&
+ git commit -m base &&
+ git tag A &&
+
+ git checkout -b B A &&
+ git mv a b &&
+ test_tick &&
+ git commit -m one &&
+
+ git checkout -b C A &&
+ git mv a b &&
+ echo important-info >a &&
+ git add a &&
+ test_tick &&
+ git commit -m two
+'
+
+test_expect_failure 'rename/rename/add-source still tracks new a file' '
+ git checkout C^0 &&
+ git merge -s recursive B^0 &&
+
+ test 2 -eq $(git ls-files -s | wc -l) &&
+ test 0 -eq $(git ls-files -o | wc -l) &&
+
+ test $(git rev-parse HEAD:a) = $(git rev-parse C:a) &&
+ test $(git rev-parse HEAD:b) = $(git rev-parse A:a)
+'
+
+test_expect_success 'setup rename/rename(1to2)/add-dest conflict' '
+ git rm -rf . &&
+ git clean -fdqx &&
+ rm -rf .git &&
+ git init &&
+
+ echo stuff >a &&
+ git add a &&
+ test_tick &&
+ git commit -m base &&
+ git tag A &&
+
+ git checkout -b B A &&
+ git mv a b &&
+ echo precious-data >c &&
+ git add c &&
+ test_tick &&
+ git commit -m one &&
+
+ git checkout -b C A &&
+ git mv a c &&
+ echo important-info >b &&
+ git add b &&
+ test_tick &&
+ git commit -m two
+'
+
+test_expect_success 'rename/rename/add-dest merge still knows about conflicting file versions' '
+ git checkout C^0 &&
+ test_must_fail git merge -s recursive B^0 &&
+
+ test 5 -eq $(git ls-files -s | wc -l) &&
+ test 2 -eq $(git ls-files -u b | wc -l) &&
+ test 2 -eq $(git ls-files -u c | wc -l) &&
+ test 4 -eq $(git ls-files -o | wc -l) &&
+
+ test $(git rev-parse :1:a) = $(git rev-parse A:a) &&
+ test $(git rev-parse :2:b) = $(git rev-parse C:b) &&
+ test $(git rev-parse :3:b) = $(git rev-parse B:b) &&
+ test $(git rev-parse :2:c) = $(git rev-parse C:c) &&
+ test $(git rev-parse :3:c) = $(git rev-parse B:c) &&
+
+ test $(git hash-object c~HEAD) = $(git rev-parse C:c) &&
+ test $(git hash-object c~B\^0) = $(git rev-parse B:c) &&
+ test $(git hash-object b~HEAD) = $(git rev-parse C:b) &&
+ test $(git hash-object b~B\^0) = $(git rev-parse B:b) &&
+
+ test ! -f b &&
+ test ! -f c
+'
+
test_done