t9902-completion: exercise __git_complete_index_file() directly

The tests added in 2f271cd9cf (t9902-completion: add tests
demonstrating issues with quoted pathnames, 2018-05-08) and in
2ab6eab4fe (completion: improve handling quoted paths in 'git
ls-files's output, 2018-03-28) have a few shortcomings:

  - All these tests use the 'test_completion' helper function, thus
    they are exercising the whole completion machinery, although they
    are only interested in how git-aware path completion, specifically
    the __git_complete_index_file() function deals with unusual
    characters in pathnames and on the command line.

  - These tests can't satisfactorily test the case of pathnames
    containing spaces, because 'test_completion' gets the words on the
    command line as a single argument and it uses space as word
    separator.

  - Some of the tests are protected by different FUNNYNAMES_* prereqs
    depending on whether they put backslashes and double quotes or
    separator characters (FS, GS, RS, US) in pathnames, although a
    filesystem not allowing one likely doesn't allow the others
    either.

  - One of the tests operates on paths containing '|' and '&'
    characters without being protected by a FUNNYNAMES prereq, but
    some filesystems (notably on Windows) don't allow these characters
    in pathnames, either.

Replace these tests with basically equivalent, more focused tests that
call __git_complete_index_file() directly.  Since this function only
looks at the current word to be completed, i.e. the $cur variable, we
can easily include pathnames containing spaces in the tests, so use
such pathnames instead of pathnames containing '|' and '&'.  Finally,
use only a single FUNNYNAMES prereq for all kinds of special
characters.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
SZEDER Gábor 2018-05-18 16:17:51 +02:00 committed by Junio C Hamano
parent 8b4c2e0b1c
commit 7d31407348

View File

@ -1209,6 +1209,124 @@ test_expect_success 'teardown after ref completion' '
git remote remove other
'
test_path_completion ()
{
test $# = 2 || error "bug in the test script: not 2 parameters to test_path_completion"
local cur="$1" expected="$2"
echo "$expected" >expected &&
(
# In the following tests calling this function we only
# care about how __git_complete_index_file() deals with
# unusual characters in path names. By requesting only
# untracked files we dont have to bother adding any
# paths to the index in those tests.
__git_complete_index_file --others &&
print_comp
) &&
test_cmp expected out
}
test_expect_success 'setup for path completion tests' '
mkdir simple-dir \
"spaces in dir" \
árvíztűrő &&
touch simple-dir/simple-file \
"spaces in dir/spaces in file" \
"árvíztűrő/Сайн яваарай" &&
if test_have_prereq !MINGW &&
mkdir BS\\dir \
'$'separators\034in\035dir'' &&
touch BS\\dir/DQ\"file \
'$'separators\034in\035dir/sep\036in\037file''
then
test_set_prereq FUNNYNAMES
else
rm -rf BS\\dir '$'separators\034in\035dir''
fi
'
test_expect_success '__git_complete_index_file - simple' '
test_path_completion simple simple-dir && # Bash is supposed to
# add the trailing /.
test_path_completion simple-dir/simple simple-dir/simple-file
'
test_expect_success \
'__git_complete_index_file - escaped characters on cmdline' '
test_path_completion spac "spaces in dir" && # Bash will turn this
# into "spaces\ in\ dir"
test_path_completion "spaces\\ i" \
"spaces in dir" &&
test_path_completion "spaces\\ in\\ dir/s" \
"spaces in dir/spaces in file" &&
test_path_completion "spaces\\ in\\ dir/spaces\\ i" \
"spaces in dir/spaces in file"
'
test_expect_success \
'__git_complete_index_file - quoted characters on cmdline' '
# Testing with an opening but without a corresponding closing
# double quote is important.
test_path_completion \"spac "spaces in dir" &&
test_path_completion "\"spaces i" \
"spaces in dir" &&
test_path_completion "\"spaces in dir/s" \
"spaces in dir/spaces in file" &&
test_path_completion "\"spaces in dir/spaces i" \
"spaces in dir/spaces in file"
'
test_expect_success '__git_complete_index_file - UTF-8 in ls-files output' '
test_path_completion á árvíztűrő &&
test_path_completion árvíztűrő/С "árvíztűrő/Сайн яваарай"
'
test_expect_success FUNNYNAMES \
'__git_complete_index_file - C-style escapes in ls-files output' '
test_path_completion BS \
BS\\dir &&
test_path_completion BS\\\\d \
BS\\dir &&
test_path_completion BS\\\\dir/DQ \
BS\\dir/DQ\"file &&
test_path_completion BS\\\\dir/DQ\\\"f \
BS\\dir/DQ\"file
'
test_expect_success FUNNYNAMES \
'__git_complete_index_file - \nnn-escaped characters in ls-files output' '
test_path_completion sep '$'separators\034in\035dir'' &&
test_path_completion '$'separators\034i'' \
'$'separators\034in\035dir'' &&
test_path_completion '$'separators\034in\035dir/sep'' \
'$'separators\034in\035dir/sep\036in\037file'' &&
test_path_completion '$'separators\034in\035dir/sep\036i'' \
'$'separators\034in\035dir/sep\036in\037file''
'
test_expect_success FUNNYNAMES \
'__git_complete_index_file - removing repeated quoted path components' '
test_when_finished rm -r repeated-quoted &&
mkdir repeated-quoted && # A directory whose name in itself
# would not be quoted ...
>repeated-quoted/0-file &&
>repeated-quoted/1\"file && # ... but here the file makes the
# dirname quoted ...
>repeated-quoted/2-file &&
>repeated-quoted/3\"file && # ... and here, too.
# Still, we shold only list the directory name only once.
test_path_completion repeated repeated-quoted
'
test_expect_success 'teardown after path completion tests' '
rm -rf simple-dir "spaces in dir" árvíztűrő \
BS\\dir '$'separators\034in\035dir''
'
test_expect_success '__git_get_config_variables' '
cat >expect <<-EOF &&
name-1
@ -1469,113 +1587,6 @@ test_expect_success 'complete files' '
test_completion "git add mom" "momified"
'
# The next tests only care about how the completion script deals with
# unusual characters in path names. By defining a custom completion
# function to list untracked files they won't be influenced by future
# changes of the completion functions of real git commands, and we
# don't have to bother with adding files to the index in these tests.
_git_test_path_comp ()
{
__git_complete_index_file --others
}
test_expect_success 'complete files - escaped characters on cmdline' '
test_when_finished "rm -rf \"New|Dir\"" &&
mkdir "New|Dir" &&
>"New|Dir/New&File.c" &&
test_completion "git test-path-comp N" \
"New|Dir" && # Bash will turn this into "New\|Dir/"
test_completion "git test-path-comp New\\|D" \
"New|Dir" &&
test_completion "git test-path-comp New\\|Dir/N" \
"New|Dir/New&File.c" && # Bash will turn this into
# "New\|Dir/New\&File.c "
test_completion "git test-path-comp New\\|Dir/New\\&F" \
"New|Dir/New&File.c"
'
test_expect_success 'complete files - quoted characters on cmdline' '
test_when_finished "rm -r \"New(Dir\"" &&
mkdir "New(Dir" &&
>"New(Dir/New)File.c" &&
# Testing with an opening but without a corresponding closing
# double quote is important.
test_completion "git test-path-comp \"New(D" "New(Dir" &&
test_completion "git test-path-comp \"New(Dir/New)F" \
"New(Dir/New)File.c"
'
test_expect_success 'complete files - UTF-8 in ls-files output' '
test_when_finished "rm -r árvíztűrő" &&
mkdir árvíztűrő &&
>"árvíztűrő/Сайн яваарай" &&
test_completion "git test-path-comp á" "árvíztűrő" &&
test_completion "git test-path-comp árvíztűrő/С" \
"árvíztűrő/Сайн яваарай"
'
# Testing with a path containing a backslash is important.
if test_have_prereq !MINGW &&
mkdir 'New\Dir' 2>/dev/null &&
touch 'New\Dir/New"File.c' 2>/dev/null
then
test_set_prereq FUNNYNAMES_BS_DQ
else
say "Your filesystem does not allow \\ and \" in filenames."
rm -rf 'New\Dir'
fi
test_expect_success FUNNYNAMES_BS_DQ \
'complete files - C-style escapes in ls-files output' '
test_when_finished "rm -r \"New\\\\Dir\"" &&
test_completion "git test-path-comp N" "New\\Dir" &&
test_completion "git test-path-comp New\\\\D" "New\\Dir" &&
test_completion "git test-path-comp New\\\\Dir/N" \
"New\\Dir/New\"File.c" &&
test_completion "git test-path-comp New\\\\Dir/New\\\"F" \
"New\\Dir/New\"File.c"
'
if test_have_prereq !MINGW &&
mkdir $'New\034Special\035Dir' 2>/dev/null &&
touch $'New\034Special\035Dir/New\036Special\037File' 2>/dev/null
then
test_set_prereq FUNNYNAMES_SEPARATORS
else
say 'Your filesystem does not allow special separator characters (FS, GS, RS, US) in filenames.'
rm -rf $'New\034Special\035Dir'
fi
test_expect_success FUNNYNAMES_SEPARATORS \
'complete files - \nnn-escaped control characters in ls-files output' '
test_when_finished "rm -r '$'New\034Special\035Dir''" &&
# Note: these will be literal separator characters on the cmdline.
test_completion "git test-path-comp N" "'$'New\034Special\035Dir''" &&
test_completion "git test-path-comp '$'New\034S''" \
"'$'New\034Special\035Dir''" &&
test_completion "git test-path-comp '$'New\034Special\035Dir/''" \
"'$'New\034Special\035Dir/New\036Special\037File''" &&
test_completion "git test-path-comp '$'New\034Special\035Dir/New\036S''" \
"'$'New\034Special\035Dir/New\036Special\037File''"
'
test_expect_success FUNNYNAMES_BS_DQ \
'complete files - removing repeated quoted path components' '
test_when_finished rm -rf NewDir &&
mkdir NewDir && # A dirname which in itself would not be quoted ...
>NewDir/0-file &&
>NewDir/1\"file && # ... but here the file makes the dirname quoted ...
>NewDir/2-file &&
>NewDir/3\"file && # ... and here, too.
# Still, we should only list it once.
test_completion "git test-path-comp New" "NewDir"
'
test_expect_success "completion uses <cmd> completion for alias: !sh -c 'git <cmd> ...'" '
test_config alias.co "!sh -c '"'"'git checkout ...'"'"'" &&
test_completion "git co m" <<-\EOF