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t1400: use test_must_be_empty

Use test_must_be_empty instead of reading the file and comparing its
contents to an empty string.  That's more efficient, as the function
only needs built-in meta-data only check in the usual case, and provides
nicer debug output otherwise.

Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
René Scharfe 2019-11-26 20:41:57 +01:00 committed by Junio C Hamano
parent 6e4826ea75
commit c93a5aaec8

@ -378,13 +378,13 @@ test_expect_success 'Query "master@{May 26 2005 23:32:00}" (exactly history star
test_when_finished "rm -f o e" &&
git rev-parse --verify "master@{May 26 2005 23:32:00}" >o 2>e &&
test $C = $(cat o) &&
test "" = "$(cat e)"
test_must_be_empty e
'
test_expect_success 'Query "master@{May 26 2005 23:32:30}" (first non-creation change)' '
test_when_finished "rm -f o e" &&
git rev-parse --verify "master@{May 26 2005 23:32:30}" >o 2>e &&
test $A = $(cat o) &&
test "" = "$(cat e)"
test_must_be_empty e
'
test_expect_success 'Query "master@{2005-05-26 23:33:01}" (middle of history with gap)' '
test_when_finished "rm -f o e" &&
@ -396,13 +396,13 @@ test_expect_success 'Query "master@{2005-05-26 23:38:00}" (middle of history)' '
test_when_finished "rm -f o e" &&
git rev-parse --verify "master@{2005-05-26 23:38:00}" >o 2>e &&
test $Z = $(cat o) &&
test "" = "$(cat e)"
test_must_be_empty e
'
test_expect_success 'Query "master@{2005-05-26 23:43:00}" (exact end of history)' '
test_when_finished "rm -f o e" &&
git rev-parse --verify "master@{2005-05-26 23:43:00}" >o 2>e &&
test $E = $(cat o) &&
test "" = "$(cat e)"
test_must_be_empty e
'
test_expect_success 'Query "master@{2005-05-28}" (past end of history)' '
test_when_finished "rm -f o e" &&