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-rwxr-xr-xt/t4001-diff-rename.sh190
1 files changed, 159 insertions, 31 deletions
diff --git a/t/t4001-diff-rename.sh b/t/t4001-diff-rename.sh
index 844277cfa6..0d1fa45d25 100755
--- a/t/t4001-diff-rename.sh
+++ b/t/t4001-diff-rename.sh
@@ -9,21 +9,84 @@ test_description='Test rename detection in diff engine.
. ./test-lib.sh
. "$TEST_DIRECTORY"/diff-lib.sh
-echo >path0 'Line 1
-Line 2
-Line 3
-Line 4
-Line 5
-Line 6
-Line 7
-Line 8
-Line 9
-Line 10
-line 11
-Line 12
-Line 13
-Line 14
-Line 15
+test_expect_success 'setup' '
+ cat >path0 <<-\EOF &&
+ Line 1
+ Line 2
+ Line 3
+ Line 4
+ Line 5
+ Line 6
+ Line 7
+ Line 8
+ Line 9
+ Line 10
+ line 11
+ Line 12
+ Line 13
+ Line 14
+ Line 15
+ EOF
+ cat >expected <<-\EOF &&
+ diff --git a/path0 b/path1
+ rename from path0
+ rename to path1
+ --- a/path0
+ +++ b/path1
+ @@ -8,7 +8,7 @@ Line 7
+ Line 8
+ Line 9
+ Line 10
+ -line 11
+ +Line 11
+ Line 12
+ Line 13
+ Line 14
+ EOF
+ cat >no-rename <<-\EOF
+ diff --git a/path0 b/path0
+ deleted file mode 100644
+ index fdbec44..0000000
+ --- a/path0
+ +++ /dev/null
+ @@ -1,15 +0,0 @@
+ -Line 1
+ -Line 2
+ -Line 3
+ -Line 4
+ -Line 5
+ -Line 6
+ -Line 7
+ -Line 8
+ -Line 9
+ -Line 10
+ -line 11
+ -Line 12
+ -Line 13
+ -Line 14
+ -Line 15
+ diff --git a/path1 b/path1
+ new file mode 100644
+ index 0000000..752c50e
+ --- /dev/null
+ +++ b/path1
+ @@ -0,0 +1,15 @@
+ +Line 1
+ +Line 2
+ +Line 3
+ +Line 4
+ +Line 5
+ +Line 6
+ +Line 7
+ +Line 8
+ +Line 9
+ +Line 10
+ +Line 11
+ +Line 12
+ +Line 13
+ +Line 14
+ +Line 15
+ EOF
'
test_expect_success \
@@ -43,27 +106,27 @@ test_expect_success \
test_expect_success \
'git diff-index -p -M after rename and editing.' \
'git diff-index -p -M $tree >current'
-cat >expected <<\EOF
-diff --git a/path0 b/path1
-rename from path0
-rename to path1
---- a/path0
-+++ b/path1
-@@ -8,7 +8,7 @@ Line 7
- Line 8
- Line 9
- Line 10
--line 11
-+Line 11
- Line 12
- Line 13
- Line 14
-EOF
+
test_expect_success \
'validate the output.' \
'compare_diff_patch current expected'
+test_expect_success 'test diff.renames=true' '
+ git -c diff.renames=true diff --cached $tree >current &&
+ compare_diff_patch current expected
+'
+
+test_expect_success 'test diff.renames=false' '
+ git -c diff.renames=false diff --cached $tree >current &&
+ compare_diff_patch current no-rename
+'
+
+test_expect_success 'test diff.renames unset' '
+ git diff --cached $tree >current &&
+ compare_diff_patch current expected
+'
+
test_expect_success 'favour same basenames over different ones' '
cp path1 another-path &&
git add another-path &&
@@ -77,6 +140,17 @@ test_expect_success 'favour same basenames even with minor differences' '
git show HEAD:path1 | sed "s/15/16/" > subdir/path1 &&
git status | test_i18ngrep "renamed: .*path1 -> subdir/path1"'
+test_expect_success 'two files with same basename and same content' '
+ git reset --hard &&
+ mkdir -p dir/A dir/B &&
+ cp path1 dir/A/file &&
+ cp path1 dir/B/file &&
+ git add dir &&
+ git commit -m 2 &&
+ git mv dir other-dir &&
+ git status | test_i18ngrep "renamed: .*dir/A/file -> other-dir/A/file"
+'
+
test_expect_success 'setup for many rename source candidates' '
git reset --hard &&
for i in 0 1 2 3 4 5 6 7 8 9;
@@ -102,4 +176,58 @@ test_expect_success 'setup for many rename source candidates' '
grep warning actual.err
'
+test_expect_success 'rename pretty print with nothing in common' '
+ mkdir -p a/b/ &&
+ : >a/b/c &&
+ git add a/b/c &&
+ git commit -m "create a/b/c" &&
+ mkdir -p c/b/ &&
+ git mv a/b/c c/b/a &&
+ git commit -m "a/b/c -> c/b/a" &&
+ git diff -M --summary HEAD^ HEAD >output &&
+ test_i18ngrep " a/b/c => c/b/a " output &&
+ git diff -M --stat HEAD^ HEAD >output &&
+ test_i18ngrep " a/b/c => c/b/a " output
+'
+
+test_expect_success 'rename pretty print with common prefix' '
+ mkdir -p c/d &&
+ git mv c/b/a c/d/e &&
+ git commit -m "c/b/a -> c/d/e" &&
+ git diff -M --summary HEAD^ HEAD >output &&
+ test_i18ngrep " c/{b/a => d/e} " output &&
+ git diff -M --stat HEAD^ HEAD >output &&
+ test_i18ngrep " c/{b/a => d/e} " output
+'
+
+test_expect_success 'rename pretty print with common suffix' '
+ mkdir d &&
+ git mv c/d/e d/e &&
+ git commit -m "c/d/e -> d/e" &&
+ git diff -M --summary HEAD^ HEAD >output &&
+ test_i18ngrep " {c/d => d}/e " output &&
+ git diff -M --stat HEAD^ HEAD >output &&
+ test_i18ngrep " {c/d => d}/e " output
+'
+
+test_expect_success 'rename pretty print with common prefix and suffix' '
+ mkdir d/f &&
+ git mv d/e d/f/e &&
+ git commit -m "d/e -> d/f/e" &&
+ git diff -M --summary HEAD^ HEAD >output &&
+ test_i18ngrep " d/{ => f}/e " output &&
+ git diff -M --stat HEAD^ HEAD >output &&
+ test_i18ngrep " d/{ => f}/e " output
+'
+
+test_expect_success 'rename pretty print common prefix and suffix overlap' '
+ mkdir d/f/f &&
+ git mv d/f/e d/f/f/e &&
+ git commit -m "d/f/e d/f/f/e" &&
+ git diff -M --summary HEAD^ HEAD >output &&
+ test_i18ngrep " d/f/{ => f}/e " output &&
+ git diff -M --stat HEAD^ HEAD >output &&
+ test_i18ngrep " d/f/{ => f}/e " output
+'
+
test_done