|  | #!/bin/sh | 
|  |  | 
|  | test_description='Return value of diffs' | 
|  |  | 
|  | . ./test-lib.sh | 
|  |  | 
|  | test_expect_success 'setup' ' | 
|  | echo 1 >a && | 
|  | git add . && | 
|  | git commit -m first && | 
|  | echo 2 >b && | 
|  | git add . && | 
|  | git commit -a -m second | 
|  | ' | 
|  |  | 
|  | test_expect_success 'git diff-tree HEAD^ HEAD' ' | 
|  | git diff-tree --quiet HEAD^ HEAD >cnt | 
|  | test $? = 1 && test $(wc -l <cnt) = 0 | 
|  | ' | 
|  | test_expect_success 'git diff-tree HEAD^ HEAD -- a' ' | 
|  | git diff-tree --quiet HEAD^ HEAD -- a >cnt | 
|  | test $? = 0 && test $(wc -l <cnt) = 0 | 
|  | ' | 
|  | test_expect_success 'git diff-tree HEAD^ HEAD -- b' ' | 
|  | git diff-tree --quiet HEAD^ HEAD -- b >cnt | 
|  | test $? = 1 && test $(wc -l <cnt) = 0 | 
|  | ' | 
|  | # this diff outputs one line: sha1 of the given head | 
|  | test_expect_success 'echo HEAD | git diff-tree --stdin' ' | 
|  | echo $(git rev-parse HEAD) | git diff-tree --quiet --stdin >cnt | 
|  | test $? = 1 && test $(wc -l <cnt) = 1 | 
|  | ' | 
|  | test_expect_success 'git diff-tree HEAD HEAD' ' | 
|  | git diff-tree --quiet HEAD HEAD >cnt | 
|  | test $? = 0 && test $(wc -l <cnt) = 0 | 
|  | ' | 
|  | test_expect_success 'git diff-files' ' | 
|  | git diff-files --quiet >cnt | 
|  | test $? = 0 && test $(wc -l <cnt) = 0 | 
|  | ' | 
|  | test_expect_success 'git diff-index --cached HEAD' ' | 
|  | git diff-index --quiet --cached HEAD >cnt | 
|  | test $? = 0 && test $(wc -l <cnt) = 0 | 
|  | ' | 
|  | test_expect_success 'git diff-index --cached HEAD^' ' | 
|  | git diff-index --quiet --cached HEAD^ >cnt | 
|  | test $? = 1 && test $(wc -l <cnt) = 0 | 
|  | ' | 
|  | test_expect_success 'git diff-index --cached HEAD^' ' | 
|  | echo text >>b && | 
|  | echo 3 >c && | 
|  | git add . && { | 
|  | git diff-index --quiet --cached HEAD^ >cnt | 
|  | test $? = 1 && test $(wc -l <cnt) = 0 | 
|  | } | 
|  | ' | 
|  | test_expect_success 'git diff-tree -Stext HEAD^ HEAD -- b' ' | 
|  | git commit -m "text in b" && { | 
|  | git diff-tree --quiet -Stext HEAD^ HEAD -- b >cnt | 
|  | test $? = 1 && test $(wc -l <cnt) = 0 | 
|  | } | 
|  | ' | 
|  | test_expect_success 'git diff-tree -Snot-found HEAD^ HEAD -- b' ' | 
|  | git diff-tree --quiet -Snot-found HEAD^ HEAD -- b >cnt | 
|  | test $? = 0 && test $(wc -l <cnt) = 0 | 
|  | ' | 
|  | test_expect_success 'git diff-files' ' | 
|  | echo 3 >>c && { | 
|  | git diff-files --quiet >cnt | 
|  | test $? = 1 && test $(wc -l <cnt) = 0 | 
|  | } | 
|  | ' | 
|  | test_expect_success 'git diff-index --cached HEAD' ' | 
|  | git update-index c && { | 
|  | git diff-index --quiet --cached HEAD >cnt | 
|  | test $? = 1 && test $(wc -l <cnt) = 0 | 
|  | } | 
|  | ' | 
|  |  | 
|  | test_done |