#!/bin/sh

test_description='difference in submodules'

. ./test-lib.sh
. "$TEST_DIRECTORY"/diff-lib.sh

_z40=0000000000000000000000000000000000000000
test_expect_success setup '
        test_tick &&
        test_create_repo sub &&
        (
                cd sub &&
                echo hello >world &&
                git add world &&
                git commit -m submodule
        ) &&

        test_tick &&
        echo frotz >nitfol &&
        git add nitfol sub &&
        git commit -m superproject &&

        (
                cd sub &&
                echo goodbye >world &&
                git add world &&
                git commit -m "submodule #2"
        ) &&

        set x $(
                cd sub &&
                git rev-list HEAD
        ) &&
        echo ":160000 160000 $3 $_z40 M sub" >expect
'

test_expect_success 'git diff --raw HEAD' '
        git diff --raw --abbrev=40 HEAD >actual &&
        test_cmp expect actual
'

test_expect_success 'git diff-index --raw HEAD' '
        git diff-index --raw HEAD >actual.index &&
        test_cmp expect actual.index
'

test_expect_success 'git diff-files --raw' '
        git diff-files --raw >actual.files &&
        test_cmp expect actual.files
'

test_expect_success 'git diff (empty submodule dir)' '
        : >empty &&
        rm -rf sub/* sub/.git &&
        git diff > actual.empty &&
        test_cmp empty actual.empty
'

test_done