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git/t/t6025-merge-symlinks.sh
Junio C Hamano 41ac414ea2 Sane use of test_expect_failure
Originally, test_expect_failure was designed to be the opposite
of test_expect_success, but this was a bad decision.  Most tests
run a series of commands that leads to the single command that
needs to be tested, like this:

    test_expect_{success,failure} 'test title' '
	setup1 &&
        setup2 &&
        setup3 &&
        what is to be tested
    '

And expecting a failure exit from the whole sequence misses the
point of writing tests.  Your setup$N that are supposed to
succeed may have failed without even reaching what you are
trying to test.  The only valid use of test_expect_failure is to
check a trivial single command that is expected to fail, which
is a minority in tests of Porcelain-ish commands.

This large-ish patch rewrites all uses of test_expect_failure to
use test_expect_success and rewrites the condition of what is
tested, like this:

    test_expect_success 'test title' '
	setup1 &&
        setup2 &&
        setup3 &&
        ! this command should fail
    '

test_expect_failure is redefined to serve as a reminder that
that test *should* succeed but due to a known breakage in git it
currently does not pass.  So if git-foo command should create a
file 'bar' but you discovered a bug that it doesn't, you can
write a test like this:

    test_expect_failure 'git-foo should create bar' '
        rm -f bar &&
        git foo &&
        test -f bar
    '

This construct acts similar to test_expect_success, but instead
of reporting "ok/FAIL" like test_expect_success does, the
outcome is reported as "FIXED/still broken".

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-01 20:49:34 -08:00

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#!/bin/sh
#
# Copyright (c) 2007 Johannes Sixt
#
test_description='merging symlinks on filesystem w/o symlink support.
This tests that git-merge-recursive writes merge results as plain files
if core.symlinks is false.'
. ./test-lib.sh
test_expect_success \
'setup' '
git config core.symlinks false &&
> file &&
git add file &&
git-commit -m initial &&
git branch b-symlink &&
git branch b-file &&
l=$(echo -n file | git-hash-object -t blob -w --stdin) &&
echo "120000 $l symlink" | git update-index --index-info &&
git-commit -m master &&
git-checkout b-symlink &&
l=$(echo -n file-different | git-hash-object -t blob -w --stdin) &&
echo "120000 $l symlink" | git update-index --index-info &&
git-commit -m b-symlink &&
git-checkout b-file &&
echo plain-file > symlink &&
git add symlink &&
git-commit -m b-file'
test_expect_success \
'merge master into b-symlink, which has a different symbolic link' '
git-checkout b-symlink &&
! git-merge master'
test_expect_success \
'the merge result must be a file' '
test -f symlink'
test_expect_success \
'merge master into b-file, which has a file instead of a symbolic link' '
git-reset --hard && git-checkout b-file &&
! git-merge master'
test_expect_success \
'the merge result must be a file' '
test -f symlink'
test_expect_success \
'merge b-file, which has a file instead of a symbolic link, into master' '
git-reset --hard &&
git-checkout master &&
! git-merge b-file'
test_expect_success \
'the merge result must be a file' '
test -f symlink'
test_done