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test: test_must_be_empty helper

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There are quite a lot places where an output file is expected to be
empty, and we fail the test when it is not.  The output from running
the test script with -i -v can be helped if we showed the unexpected
contents at that point.

We could of course do

    >expected.empty && test_cmp expected.empty actual

but this is commmon enough to be done with a dedicated helper.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Junio C Hamano
2013-06-09 11:29:20 -07:00
parent b1d04bfcf8
commit ca8d148daf
9 changed files with 65 additions and 53 deletions
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6
t/t7400-submodule-basic.sh
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@ -78,7 +78,7 @@ test_expect_success 'submodule add' '
(
cd addtest &&
git submodule add -q "$submodurl" submod >actual &&
test ! -s actual &&
test_must_be_empty actual &&
echo "gitdir: ../.git/modules/submod" >expect &&
test_cmp expect submod/.git &&
(
@ -308,7 +308,7 @@ test_expect_success 'update should work when path is an empty dir' '
mkdir init &&
git submodule update -q >update.out &&
test ! -s update.out &&
test_must_be_empty update.out &&
inspect init &&
test_cmp expect head-sha1
@ -696,7 +696,7 @@ test_expect_success 'submodule add --name allows to replace a submodule with ano
rm -rf repo &&
git rm repo &&
git submodule add -q --name repo_new "$submodurl/bare.git" repo >actual &&
test ! -s actual &&
test_must_be_empty actual &&
echo "gitdir: ../.git/modules/submod" >expect &&
test_cmp expect submod/.git &&
(