diff options
Diffstat (limited to 't/t4053-diff-no-index.sh')
| -rwxr-xr-x | t/t4053-diff-no-index.sh | 287 |
1 files changed, 287 insertions, 0 deletions
diff --git a/t/t4053-diff-no-index.sh b/t/t4053-diff-no-index.sh new file mode 100755 index 0000000..5ce345d --- /dev/null +++ b/t/t4053-diff-no-index.sh @@ -0,0 +1,287 @@ +#!/bin/sh + +test_description='diff --no-index' + +TEST_PASSES_SANITIZE_LEAK=true +. ./test-lib.sh + +test_expect_success 'setup' ' + mkdir a && + mkdir b && + echo 1 >a/1 && + echo 2 >a/2 && + git init repo && + echo 1 >repo/a && + mkdir -p non/git && + echo 1 >non/git/a && + echo 1 >non/git/b +' + +test_expect_success 'git diff --no-index --exit-code' ' + git diff --no-index --exit-code a/1 non/git/a && + test_expect_code 1 git diff --no-index --exit-code a/1 a/2 +' + +test_expect_success 'git diff --no-index directories' ' + test_expect_code 1 git diff --no-index a b >cnt && + test_line_count = 14 cnt +' + +test_expect_success 'git diff --no-index relative path outside repo' ' + ( + cd repo && + test_expect_code 0 git diff --no-index a ../non/git/a && + test_expect_code 0 git diff --no-index ../non/git/a ../non/git/b + ) +' + +test_expect_success 'git diff --no-index with broken index' ' + ( + cd repo && + echo broken >.git/index && + git diff --no-index a ../non/git/a + ) +' + +test_expect_success 'git diff outside repo with broken index' ' + ( + cd repo && + git diff ../non/git/a ../non/git/b + ) +' + +test_expect_success 'git diff --no-index executed outside repo gives correct error message' ' + ( + GIT_CEILING_DIRECTORIES=$TRASH_DIRECTORY/non && + export GIT_CEILING_DIRECTORIES && + cd non/git && + test_must_fail git diff --no-index a 2>actual.err && + test_grep "usage: git diff --no-index" actual.err + ) +' + +test_expect_success 'diff D F and diff F D' ' + ( + cd repo && + echo in-repo >a && + echo non-repo >../non/git/a && + mkdir sub && + echo sub-repo >sub/a && + + test_must_fail git diff --no-index sub/a ../non/git/a >expect && + test_must_fail git diff --no-index sub/a ../non/git/ >actual && + test_cmp expect actual && + + test_must_fail git diff --no-index a ../non/git/a >expect && + test_must_fail git diff --no-index a ../non/git/ >actual && + test_cmp expect actual && + + test_must_fail git diff --no-index ../non/git/a a >expect && + test_must_fail git diff --no-index ../non/git a >actual && + test_cmp expect actual + ) +' + +test_expect_success 'turning a file into a directory' ' + ( + cd non/git && + mkdir d e e/sub && + echo 1 >d/sub && + echo 2 >e/sub/file && + printf "D\td/sub\nA\te/sub/file\n" >expect && + test_must_fail git diff --no-index --name-status d e >actual && + test_cmp expect actual + ) +' + +test_expect_success 'diff from repo subdir shows real paths (explicit)' ' + echo "diff --git a/../../non/git/a b/../../non/git/b" >expect && + test_expect_code 1 \ + git -C repo/sub \ + diff --no-index ../../non/git/a ../../non/git/b >actual && + head -n 1 <actual >actual.head && + test_cmp expect actual.head +' + +test_expect_success 'diff from repo subdir shows real paths (implicit)' ' + echo "diff --git a/../../non/git/a b/../../non/git/b" >expect && + test_expect_code 1 \ + git -C repo/sub \ + diff ../../non/git/a ../../non/git/b >actual && + head -n 1 <actual >actual.head && + test_cmp expect actual.head +' + +test_expect_success 'diff --no-index from repo subdir respects config (explicit)' ' + echo "diff --git ../../non/git/a ../../non/git/b" >expect && + test_config -C repo diff.noprefix true && + test_expect_code 1 \ + git -C repo/sub \ + diff --no-index ../../non/git/a ../../non/git/b >actual && + head -n 1 <actual >actual.head && + test_cmp expect actual.head +' + +test_expect_success 'diff --no-index from repo subdir respects config (implicit)' ' + echo "diff --git ../../non/git/a ../../non/git/b" >expect && + test_config -C repo diff.noprefix true && + test_expect_code 1 \ + git -C repo/sub \ + diff ../../non/git/a ../../non/git/b >actual && + head -n 1 <actual >actual.head && + test_cmp expect actual.head +' + +test_expect_success 'diff --no-index from repo subdir with absolute paths' ' + cat <<-EOF >expect && + 1 1 $(pwd)/non/git/{a => b} + EOF + test_expect_code 1 \ + git -C repo/sub diff --numstat \ + "$(pwd)/non/git/a" "$(pwd)/non/git/b" >actual && + test_cmp expect actual +' + +test_expect_success 'diff --no-index allows external diff' ' + test_expect_code 1 \ + env GIT_EXTERNAL_DIFF="echo external ;:" \ + git diff --no-index non/git/a non/git/b >actual && + echo external >expect && + test_cmp expect actual +' + +test_expect_success 'diff --no-index normalizes mode: no changes' ' + echo foo >x && + cp x y && + git diff --no-index x y >out && + test_must_be_empty out +' + +test_expect_success POSIXPERM 'diff --no-index normalizes mode: chmod +x' ' + chmod +x y && + cat >expected <<-\EOF && + diff --git a/x b/y + old mode 100644 + new mode 100755 + EOF + test_expect_code 1 git diff --no-index x y >actual && + test_cmp expected actual +' + +test_expect_success POSIXPERM 'diff --no-index normalizes: mode not like git mode' ' + chmod 666 x && + chmod 777 y && + cat >expected <<-\EOF && + diff --git a/x b/y + old mode 100644 + new mode 100755 + EOF + test_expect_code 1 git diff --no-index x y >actual && + test_cmp expected actual +' + +test_expect_success POSIXPERM,SYMLINKS 'diff --no-index normalizes: mode not like git mode (symlink)' ' + ln -s y z && + X_OID=$(git hash-object --stdin <x) && + Z_OID=$(printf y | git hash-object --stdin) && + cat >expected <<-EOF && + diff --git a/x b/x + deleted file mode 100644 + index $X_OID..$ZERO_OID + --- a/x + +++ /dev/null + @@ -1 +0,0 @@ + -foo + diff --git a/z b/z + new file mode 120000 + index $ZERO_OID..$Z_OID + --- /dev/null + +++ b/z + @@ -0,0 +1 @@ + +y + \ No newline at end of file + EOF + test_expect_code 1 git -c core.abbrev=no diff --no-index x z >actual && + test_cmp expected actual +' + +test_expect_success "diff --no-index treats '-' as stdin" ' + cat >expect <<-EOF && + diff --git a/- b/a/1 + index $ZERO_OID..$(git hash-object --stdin <a/1) 100644 + --- a/- + +++ b/a/1 + @@ -1 +1 @@ + -x + +1 + EOF + + test_write_lines x | test_expect_code 1 \ + git -c core.abbrev=no diff --no-index -- - a/1 >actual && + test_cmp expect actual && + + test_write_lines 1 | git diff --no-index -- a/1 - >actual && + test_must_be_empty actual +' + +test_expect_success "diff --no-index -R treats '-' as stdin" ' + cat >expect <<-EOF && + diff --git b/a/1 a/- + index $(git hash-object --stdin <a/1)..$ZERO_OID 100644 + --- b/a/1 + +++ a/- + @@ -1 +1 @@ + -1 + +x + EOF + + test_write_lines x | test_expect_code 1 \ + git -c core.abbrev=no diff --no-index -R -- - a/1 >actual && + test_cmp expect actual && + + test_write_lines 1 | git diff --no-index -R -- a/1 - >actual && + test_must_be_empty actual +' + +test_expect_success 'diff --no-index refuses to diff stdin and a directory' ' + test_must_fail git diff --no-index -- - a </dev/null 2>err && + grep "fatal: cannot compare stdin to a directory" err +' + +test_expect_success PIPE 'diff --no-index refuses to diff a named pipe and a directory' ' + test_when_finished "rm -f pipe" && + mkfifo pipe && + test_must_fail git diff --no-index -- pipe a 2>err && + grep "fatal: cannot compare a named pipe to a directory" err +' + +test_expect_success PIPE,SYMLINKS 'diff --no-index reads from pipes' ' + test_when_finished "rm -f old new new-link" && + mkfifo old && + mkfifo new && + ln -s new new-link && + { + (test_write_lines a b c >old) & + } && + test_when_finished "kill $! || :" && + { + (test_write_lines a x c >new) & + } && + test_when_finished "kill $! || :" && + + cat >expect <<-EOF && + diff --git a/old b/new-link + --- a/old + +++ b/new-link + @@ -1,3 +1,3 @@ + a + -b + +x + c + EOF + + test_expect_code 1 git diff --no-index old new-link >actual && + test_cmp expect actual +' + +test_done |