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git/t/t5710-info-alternate.sh
Junio C Hamano 2c6d22df9f t5710: fix two thinkos.
The intention of the test seems to be to build a long chain of
clones that locally borrow objects from their parents and see the
system give up dereferencing long chains.  There were two problems:

 (1) it did not test the right repository;
 (2) it did not build a chain long enough to trigger the limitation.

I do not think it is a good test to make sure the limitation the
current implementation happens to have still exists, but that is
a topic at a totally different level.

At least this fixes the broken test.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-31 14:16:09 -07:00

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#!/bin/sh
#
# Copyright (C) 2006 Martin Waitz <tali@admingilde.org>
#
test_description='test transitive info/alternate entries'
. ./test-lib.sh
# test that a file is not reachable in the current repository
# but that it is after creating a info/alternate entry
reachable_via() {
alternate="$1"
file="$2"
if git cat-file -e "HEAD:$file"; then return 1; fi
echo "$alternate" >> .git/objects/info/alternate
git cat-file -e "HEAD:$file"
}
test_valid_repo() {
git fsck-objects --full > fsck.log &&
test `wc -l < fsck.log` = 0
}
base_dir=`pwd`
test_expect_success 'preparing first repository' \
'test_create_repo A && cd A &&
echo "Hello World" > file1 &&
git add file1 &&
git commit -m "Initial commit" file1 &&
git repack -a -d &&
git prune'
cd "$base_dir"
test_expect_success 'preparing second repository' \
'git clone -l -s A B && cd B &&
echo "foo bar" > file2 &&
git add file2 &&
git commit -m "next commit" file2 &&
git repack -a -d -l &&
git prune'
cd "$base_dir"
test_expect_success 'preparing third repository' \
'git clone -l -s B C && cd C &&
echo "Goodbye, cruel world" > file3 &&
git add file3 &&
git commit -m "one more" file3 &&
git repack -a -d -l &&
git prune'
cd "$base_dir"
test_expect_failure 'creating too deep nesting' \
'git clone -l -s C D &&
git clone -l -s D E &&
git clone -l -s E F &&
git clone -l -s F G &&
git clone -l -s G H &&
cd H &&
test_valid_repo'
cd "$base_dir"
test_expect_success 'validity of third repository' \
'cd C &&
test_valid_repo'
cd "$base_dir"
test_expect_success 'validity of fourth repository' \
'cd D &&
test_valid_repo'
cd "$base_dir"
test_expect_success 'breaking of loops' \
"echo '$base_dir/B/.git/objects' >> '$base_dir'/A/.git/objects/info/alternates&&
cd C &&
test_valid_repo"
cd "$base_dir"
test_expect_failure 'that info/alternates is necessary' \
'cd C &&
rm .git/objects/info/alternates &&
test_valid_repo'
cd "$base_dir"
test_expect_success 'that relative alternate is possible for current dir' \
'cd C &&
echo "../../../B/.git/objects" > .git/objects/info/alternates &&
test_valid_repo'
cd "$base_dir"
test_expect_failure 'that relative alternate is only possible for current dir' \
'cd D &&
test_valid_repo'
cd "$base_dir"
test_done