git/t/t7408-submodule-reference.sh
Stefan Beller 9292536eb4 t7408: merge short tests, factor out testing method
Tests consisting of one line each can be consolidated to have fewer tests
to run as well as fewer lines of code.

When having just a few git commands, do not create a new shell but
use the -C flag in Git to execute in the correct directory.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-08-12 15:00:16 -07:00

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#!/bin/sh
#
# Copyright (c) 2009, Red Hat Inc, Author: Michael S. Tsirkin (mst@redhat.com)
#
test_description='test clone --reference'
. ./test-lib.sh
base_dir=$(pwd)
test_alternate_is_used () {
alternates_file="$1" &&
working_dir="$2" &&
test_line_count = 1 "$alternates_file" &&
echo "0 objects, 0 kilobytes" >expect &&
git -C "$working_dir" count-objects >actual &&
test_cmp expect actual
}
test_expect_success 'preparing first repository' '
test_create_repo A &&
(
cd A &&
echo first >file1 &&
git add file1 &&
git commit -m A-initial
)
'
test_expect_success 'preparing second repository' '
git clone A B &&
(
cd B &&
echo second >file2 &&
git add file2 &&
git commit -m B-addition &&
git repack -a -d &&
git prune
)
'
test_expect_success 'preparing superproject' '
test_create_repo super &&
(
cd super &&
echo file >file &&
git add file &&
git commit -m B-super-initial
)
'
test_expect_success 'submodule add --reference uses alternates' '
(
cd super &&
git submodule add --reference ../B "file://$base_dir/A" sub &&
git commit -m B-super-added &&
git repack -ad
) &&
test_alternate_is_used super/.git/modules/sub/objects/info/alternates super/sub
'
test_expect_success 'that reference gets used with add' '
(
cd super/sub &&
echo "0 objects, 0 kilobytes" >expected &&
git count-objects >current &&
diff expected current
)
'
# The tests up to this point, and repositories created by them
# (A, B, super and super/sub), are about setting up the stage
# for subsequent tests and meant to be kept throughout the
# remainder of the test.
# Tests from here on, if they create their own test repository,
# are expected to clean after themselves.
test_expect_success 'updating superproject keeps alternates' '
test_when_finished "rm -rf super-clone" &&
git clone super super-clone &&
git -C super-clone submodule update --init --reference ../B &&
test_alternate_is_used super-clone/.git/modules/sub/objects/info/alternates super-clone/sub
'
test_done