diff options
Diffstat (limited to 't/t4008-diff-break-rewrite.sh')
| -rwxr-xr-x | t/t4008-diff-break-rewrite.sh | 292 |
1 files changed, 129 insertions, 163 deletions
diff --git a/t/t4008-diff-break-rewrite.sh b/t/t4008-diff-break-rewrite.sh index 27e98a8..9dd1bc5 100755 --- a/t/t4008-diff-break-rewrite.sh +++ b/t/t4008-diff-break-rewrite.sh @@ -10,179 +10,145 @@ We have two very different files, file0 and file1, registered in a tree. We update file1 so drastically that it is more similar to file0, and then remove file0. With -B, changes to file1 should be broken into separate delete and create, resulting in removal of file0, removal of -original file1 and creation of completely rewritten file1. +original file1 and creation of completely rewritten file1. The latter +two are then merged back into a single "complete rewrite". Further, with -B and -M together, these three modifications should turn into rename-edit of file0 into file1. Starting from the same two files in the tree, we swap file0 and file1. -With -B, this should be detected as two complete rewrites, resulting in -four changes in total. +With -B, this should be detected as two complete rewrites. Further, with -B and -M together, these should turn into two renames. ' . ./test-lib.sh . "$TEST_DIRECTORY"/diff-lib.sh ;# test-lib chdir's into trash -test_expect_success \ - setup \ - 'cat "$TEST_DIRECTORY"/../README >file0 && - cat "$TEST_DIRECTORY"/../COPYING >file1 && - git update-index --add file0 file1 && - tree=$(git write-tree) && - echo "$tree"' - -test_expect_success \ - 'change file1 with copy-edit of file0 and remove file0' \ - 'sed -e "s/git/GIT/" file0 >file1 && - rm -f file0 && - git update-index --remove file0 file1' - -test_expect_success \ - 'run diff with -B' \ - 'git diff-index -B --cached "$tree" >current' - -cat >expected <<\EOF -:100644 000000 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 0000000000000000000000000000000000000000 D file0 -:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 11e331465a89c394dc25c780de230043750c1ec8 M100 file1 -EOF - -test_expect_success \ - 'validate result of -B (#1)' \ - 'compare_diff_raw expected current' - -test_expect_success \ - 'run diff with -B and -M' \ - 'git diff-index -B -M "$tree" >current' - -cat >expected <<\EOF -:100644 100644 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 08bb2fb671deff4c03a4d4a0a1315dff98d5732c R100 file0 file1 -EOF - -test_expect_success \ - 'validate result of -B -M (#2)' \ - 'compare_diff_raw expected current' - -test_expect_success \ - 'swap file0 and file1' \ - 'rm -f file0 file1 && - git read-tree -m $tree && - git checkout-index -f -u -a && - mv file0 tmp && - mv file1 file0 && - mv tmp file1 && - git update-index file0 file1' - -test_expect_success \ - 'run diff with -B' \ - 'git diff-index -B "$tree" >current' - -cat >expected <<\EOF -:100644 100644 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 6ff87c4664981e4397625791c8ea3bbb5f2279a3 M100 file0 -:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 M100 file1 -EOF - -test_expect_success \ - 'validate result of -B (#3)' \ - 'compare_diff_raw expected current' - -test_expect_success \ - 'run diff with -B and -M' \ - 'git diff-index -B -M "$tree" >current' - -cat >expected <<\EOF -:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 6ff87c4664981e4397625791c8ea3bbb5f2279a3 R100 file1 file0 -:100644 100644 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 R100 file0 file1 -EOF - -test_expect_success \ - 'validate result of -B -M (#4)' \ - 'compare_diff_raw expected current' - -test_expect_success \ - 'make file0 into something completely different' \ - 'rm -f file0 && - test_ln_s_add frotz file0 && - git update-index file1' - -test_expect_success \ - 'run diff with -B' \ - 'git diff-index -B "$tree" >current' - -cat >expected <<\EOF -:100644 120000 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 67be421f88824578857624f7b3dc75e99a8a1481 T file0 -:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 M100 file1 -EOF - -test_expect_success \ - 'validate result of -B (#5)' \ - 'compare_diff_raw expected current' - -test_expect_success \ - 'run diff with -B -M' \ - 'git diff-index -B -M "$tree" >current' - -# file0 changed from regular to symlink. file1 is very close to the preimage of file0. -# because we break file0, file1 can become a rename of it. -cat >expected <<\EOF -:100644 120000 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 67be421f88824578857624f7b3dc75e99a8a1481 T file0 -:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 R file0 file1 -EOF - -test_expect_success \ - 'validate result of -B -M (#6)' \ - 'compare_diff_raw expected current' - -test_expect_success \ - 'run diff with -M' \ - 'git diff-index -M "$tree" >current' - -# This should not mistake file0 as the copy source of new file1 -# due to type differences. -cat >expected <<\EOF -:100644 120000 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 67be421f88824578857624f7b3dc75e99a8a1481 T file0 -:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 M file1 -EOF - -test_expect_success \ - 'validate result of -M (#7)' \ - 'compare_diff_raw expected current' - -test_expect_success \ - 'file1 edited to look like file0 and file0 rename-edited to file2' \ - 'rm -f file0 file1 && - git read-tree -m $tree && - git checkout-index -f -u -a && - sed -e "s/git/GIT/" file0 >file1 && - sed -e "s/git/GET/" file0 >file2 && - rm -f file0 && - git update-index --add --remove file0 file1 file2' - -test_expect_success \ - 'run diff with -B' \ - 'git diff-index -B "$tree" >current' - -cat >expected <<\EOF -:100644 000000 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 0000000000000000000000000000000000000000 D file0 -:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 08bb2fb671deff4c03a4d4a0a1315dff98d5732c M100 file1 -:000000 100644 0000000000000000000000000000000000000000 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 A file2 -EOF - -test_expect_success \ - 'validate result of -B (#8)' \ - 'compare_diff_raw expected current' - -test_expect_success \ - 'run diff with -B -C' \ - 'git diff-index -B -C "$tree" >current' - -cat >expected <<\EOF -:100644 100644 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 08bb2fb671deff4c03a4d4a0a1315dff98d5732c C095 file0 file1 -:100644 100644 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 59f832e5c8b3f7e486be15ad0cd3e95ba9af8998 R095 file0 file2 -EOF - -test_expect_success \ - 'validate result of -B -M (#9)' \ - 'compare_diff_raw expected current' +test_expect_success setup ' + cat "$TEST_DIRECTORY"/diff-lib/README >file0 && + cat "$TEST_DIRECTORY"/diff-lib/COPYING >file1 && + git update-index --add file0 file1 && + git tag reference $(git write-tree) +' + +test_expect_success 'change file1 with copy-edit of file0 and remove file0' ' + sed -e "s/git/GIT/" file0 >file1 && + rm -f file0 && + git update-index --remove file0 file1 +' + +test_expect_success 'run diff with -B (#1)' ' + git diff-index -B --cached reference >current && + cat >expect <<-\EOF && + :100644 000000 548142c327a6790ff8821d67c2ee1eff7a656b52 0000000000000000000000000000000000000000 D file0 + :100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 2fbedd0b5d4b8126e4750c3bee305e8ff79f80ec M100 file1 + EOF + compare_diff_raw expect current +' + +test_expect_success 'run diff with -B and -M (#2)' ' + git diff-index -B -M reference >current && + cat >expect <<-\EOF && + :100644 100644 548142c327a6790ff8821d67c2ee1eff7a656b52 2fbedd0b5d4b8126e4750c3bee305e8ff79f80ec R100 file0 file1 + EOF + compare_diff_raw expect current +' + +test_expect_success 'swap file0 and file1' ' + rm -f file0 file1 && + git read-tree -m reference && + git checkout-index -f -u -a && + mv file0 tmp && + mv file1 file0 && + mv tmp file1 && + git update-index file0 file1 +' + +test_expect_success 'run diff with -B (#3)' ' + git diff-index -B reference >current && + cat >expect <<-\EOF && + :100644 100644 548142c327a6790ff8821d67c2ee1eff7a656b52 6ff87c4664981e4397625791c8ea3bbb5f2279a3 M100 file0 + :100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 548142c327a6790ff8821d67c2ee1eff7a656b52 M100 file1 + EOF + compare_diff_raw expect current +' + +test_expect_success 'run diff with -B and -M (#4)' ' + git diff-index -B -M reference >current && + cat >expect <<-\EOF && + :100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 6ff87c4664981e4397625791c8ea3bbb5f2279a3 R100 file1 file0 + :100644 100644 548142c327a6790ff8821d67c2ee1eff7a656b52 548142c327a6790ff8821d67c2ee1eff7a656b52 R100 file0 file1 + EOF + compare_diff_raw expect current +' + +test_expect_success 'make file0 into something completely different' ' + rm -f file0 && + test_ln_s_add frotz file0 && + git update-index file1 +' + +test_expect_success 'run diff with -B (#5)' ' + git diff-index -B reference >current && + cat >expect <<-\EOF && + :100644 120000 548142c327a6790ff8821d67c2ee1eff7a656b52 67be421f88824578857624f7b3dc75e99a8a1481 T file0 + :100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 548142c327a6790ff8821d67c2ee1eff7a656b52 M100 file1 + EOF + compare_diff_raw expect current +' + +test_expect_success 'run diff with -B -M (#6)' ' + git diff-index -B -M reference >current && + + # file0 changed from regular to symlink. file1 is the same as the preimage + # of file0. Because the change does not make file0 disappear, file1 is + # denoted as a copy of file0 + cat >expect <<-\EOF && + :100644 120000 548142c327a6790ff8821d67c2ee1eff7a656b52 67be421f88824578857624f7b3dc75e99a8a1481 T file0 + :100644 100644 548142c327a6790ff8821d67c2ee1eff7a656b52 548142c327a6790ff8821d67c2ee1eff7a656b52 C file0 file1 + EOF + compare_diff_raw expect current +' + +test_expect_success 'run diff with -M (#7)' ' + git diff-index -M reference >current && + + # This should not mistake file0 as the copy source of new file1 + # due to type differences. + cat >expect <<-\EOF && + :100644 120000 548142c327a6790ff8821d67c2ee1eff7a656b52 67be421f88824578857624f7b3dc75e99a8a1481 T file0 + :100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 548142c327a6790ff8821d67c2ee1eff7a656b52 M file1 + EOF + compare_diff_raw expect current +' + +test_expect_success 'file1 edited to look like file0 and file0 rename-edited to file2' ' + rm -f file0 file1 && + git read-tree -m reference && + git checkout-index -f -u -a && + sed -e "s/git/GIT/" file0 >file1 && + sed -e "s/git/GET/" file0 >file2 && + rm -f file0 && + git update-index --add --remove file0 file1 file2 +' + +test_expect_success 'run diff with -B (#8)' ' + git diff-index -B reference >current && + cat >expect <<-\EOF && + :100644 000000 548142c327a6790ff8821d67c2ee1eff7a656b52 0000000000000000000000000000000000000000 D file0 + :100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 2fbedd0b5d4b8126e4750c3bee305e8ff79f80ec M100 file1 + :000000 100644 0000000000000000000000000000000000000000 69a939f651686f56322566e2fd76715947a24162 A file2 + EOF + compare_diff_raw expect current +' + +test_expect_success 'run diff with -B -C (#9)' ' + git diff-index -B -C reference >current && + cat >expect <<-\EOF && + :100644 100644 548142c327a6790ff8821d67c2ee1eff7a656b52 2fbedd0b5d4b8126e4750c3bee305e8ff79f80ec C095 file0 file1 + :100644 100644 548142c327a6790ff8821d67c2ee1eff7a656b52 69a939f651686f56322566e2fd76715947a24162 R095 file0 file2 + EOF + compare_diff_raw expect current +' test_done |