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git/t/t0030-stripspace.sh
Junio C Hamano 3af828634f tests: do not use implicit "git diff --no-index"
As a general principle, we should not use "git diff" to validate the
results of what git command that is being tested has done.  We would not
know if we are testing the command in question, or locating a bug in the
cute hack of "git diff --no-index".

Rather use test_cmp for that purpose.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-24 00:01:56 -07:00

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#!/bin/sh
#
# Copyright (c) 2007 Carlos Rica
#
test_description='git stripspace'
. ./test-lib.sh
t40='A quick brown fox jumps over the lazy do'
s40=' '
sss="$s40$s40$s40$s40$s40$s40$s40$s40$s40$s40" # 400
ttt="$t40$t40$t40$t40$t40$t40$t40$t40$t40$t40" # 400
test_expect_success \
'long lines without spaces should be unchanged' '
echo "$ttt" >expect &&
git stripspace <expect >actual &&
test_cmp expect actual &&
echo "$ttt$ttt" >expect &&
git stripspace <expect >actual &&
test_cmp expect actual &&
echo "$ttt$ttt$ttt" >expect &&
git stripspace <expect >actual &&
test_cmp expect actual &&
echo "$ttt$ttt$ttt$ttt" >expect &&
git stripspace <expect >actual &&
test_cmp expect actual
'
test_expect_success \
'lines with spaces at the beginning should be unchanged' '
echo "$sss$ttt" >expect &&
git stripspace <expect >actual &&
test_cmp expect actual &&
echo "$sss$sss$ttt" >expect &&
git stripspace <expect >actual &&
test_cmp expect actual &&
echo "$sss$sss$sss$ttt" >expect &&
git stripspace <expect >actual &&
test_cmp expect actual
'
test_expect_success \
'lines with intermediate spaces should be unchanged' '
echo "$ttt$sss$ttt" >expect &&
git stripspace <expect >actual &&
test_cmp expect actual &&
echo "$ttt$sss$sss$ttt" >expect &&
git stripspace <expect >actual &&
test_cmp expect actual
'
test_expect_success \
'consecutive blank lines should be unified' '
printf "$ttt\n\n$ttt\n" > expect &&
printf "$ttt\n\n\n\n\n$ttt\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt$ttt\n\n$ttt\n" > expect &&
printf "$ttt$ttt\n\n\n\n\n$ttt\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt$ttt$ttt\n\n$ttt\n" > expect &&
printf "$ttt$ttt$ttt\n\n\n\n\n$ttt\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt\n\n$ttt\n" > expect &&
printf "$ttt\n\n\n\n\n$ttt\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt\n\n$ttt$ttt\n" > expect &&
printf "$ttt\n\n\n\n\n$ttt$ttt\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt\n\n$ttt$ttt$ttt\n" > expect &&
printf "$ttt\n\n\n\n\n$ttt$ttt$ttt\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt\n\n$ttt\n" > expect &&
printf "$ttt\n\t\n \n\n \t\t\n$ttt\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt$ttt\n\n$ttt\n" > expect &&
printf "$ttt$ttt\n\t\n \n\n \t\t\n$ttt\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt$ttt$ttt\n\n$ttt\n" > expect &&
printf "$ttt$ttt$ttt\n\t\n \n\n \t\t\n$ttt\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt\n\n$ttt\n" > expect &&
printf "$ttt\n\t\n \n\n \t\t\n$ttt\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt\n\n$ttt$ttt\n" > expect &&
printf "$ttt\n\t\n \n\n \t\t\n$ttt$ttt\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt\n\n$ttt$ttt$ttt\n" > expect &&
printf "$ttt\n\t\n \n\n \t\t\n$ttt$ttt$ttt\n" | git stripspace >actual &&
test_cmp expect actual
'
test_expect_success \
'only consecutive blank lines should be completely removed' '
> expect &&
printf "\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "\n\n\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$sss\n$sss\n$sss\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$sss$sss\n$sss\n\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "\n$sss\n$sss$sss\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$sss$sss$sss$sss\n\n\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "\n$sss$sss$sss$sss\n\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "\n\n$sss$sss$sss$sss\n" | git stripspace >actual &&
test_cmp expect actual
'
test_expect_success \
'consecutive blank lines at the beginning should be removed' '
printf "$ttt\n" > expect &&
printf "\n$ttt\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt\n" > expect &&
printf "\n\n\n$ttt\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt$ttt\n" > expect &&
printf "\n\n\n$ttt$ttt\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt$ttt$ttt\n" > expect &&
printf "\n\n\n$ttt$ttt$ttt\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt$ttt$ttt$ttt\n" > expect &&
printf "\n\n\n$ttt$ttt$ttt$ttt\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt\n" > expect &&
printf "$sss\n$sss\n$sss\n$ttt\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "\n$sss\n$sss$sss\n$ttt\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$sss$sss\n$sss\n\n$ttt\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$sss$sss$sss\n\n\n$ttt\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "\n$sss$sss$sss\n\n$ttt\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "\n\n$sss$sss$sss\n$ttt\n" | git stripspace >actual &&
test_cmp expect actual
'
test_expect_success \
'consecutive blank lines at the end should be removed' '
printf "$ttt\n" > expect &&
printf "$ttt\n\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt\n" > expect &&
printf "$ttt\n\n\n\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt$ttt\n" > expect &&
printf "$ttt$ttt\n\n\n\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt$ttt$ttt\n" > expect &&
printf "$ttt$ttt$ttt\n\n\n\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt$ttt$ttt$ttt\n" > expect &&
printf "$ttt$ttt$ttt$ttt\n\n\n\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt\n" > expect &&
printf "$ttt\n$sss\n$sss\n$sss\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt\n\n$sss\n$sss$sss\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt\n$sss$sss\n$sss\n\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt\n$sss$sss$sss\n\n\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt\n\n$sss$sss$sss\n\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt\n\n\n$sss$sss$sss\n" | git stripspace >actual &&
test_cmp expect actual
'
test_expect_success \
'text without newline at end should end with newline' '
test `printf "$ttt" | git stripspace | wc -l` -gt 0 &&
test `printf "$ttt$ttt" | git stripspace | wc -l` -gt 0 &&
test `printf "$ttt$ttt$ttt" | git stripspace | wc -l` -gt 0 &&
test `printf "$ttt$ttt$ttt$ttt" | git stripspace | wc -l` -gt 0
'
# text plus spaces at the end:
test_expect_success \
'text plus spaces without newline at end should end with newline' '
test `printf "$ttt$sss" | git stripspace | wc -l` -gt 0 &&
test `printf "$ttt$ttt$sss" | git stripspace | wc -l` -gt 0 &&
test `printf "$ttt$ttt$ttt$sss" | git stripspace | wc -l` -gt 0 &&
test `printf "$ttt$sss$sss" | git stripspace | wc -l` -gt 0 &&
test `printf "$ttt$ttt$sss$sss" | git stripspace | wc -l` -gt 0 &&
test `printf "$ttt$sss$sss$sss" | git stripspace | wc -l` -gt 0
'
test_expect_success \
'text plus spaces without newline at end should not show spaces' '
! (printf "$ttt$sss" | git stripspace | grep " " >/dev/null) &&
! (printf "$ttt$ttt$sss" | git stripspace | grep " " >/dev/null) &&
! (printf "$ttt$ttt$ttt$sss" | git stripspace | grep " " >/dev/null) &&
! (printf "$ttt$sss$sss" | git stripspace | grep " " >/dev/null) &&
! (printf "$ttt$ttt$sss$sss" | git stripspace | grep " " >/dev/null) &&
! (printf "$ttt$sss$sss$sss" | git stripspace | grep " " >/dev/null)
'
test_expect_success \
'text plus spaces without newline should show the correct lines' '
printf "$ttt\n" >expect &&
printf "$ttt$sss" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt\n" >expect &&
printf "$ttt$sss$sss" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt\n" >expect &&
printf "$ttt$sss$sss$sss" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt$ttt\n" >expect &&
printf "$ttt$ttt$sss" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt$ttt\n" >expect &&
printf "$ttt$ttt$sss$sss" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt$ttt$ttt\n" >expect &&
printf "$ttt$ttt$ttt$sss" | git stripspace >actual &&
test_cmp expect actual
'
test_expect_success \
'text plus spaces at end should not show spaces' '
! (echo "$ttt$sss" | git stripspace | grep " " >/dev/null) &&
! (echo "$ttt$ttt$sss" | git stripspace | grep " " >/dev/null) &&
! (echo "$ttt$ttt$ttt$sss" | git stripspace | grep " " >/dev/null) &&
! (echo "$ttt$sss$sss" | git stripspace | grep " " >/dev/null) &&
! (echo "$ttt$ttt$sss$sss" | git stripspace | grep " " >/dev/null) &&
! (echo "$ttt$sss$sss$sss" | git stripspace | grep " " >/dev/null)
'
test_expect_success \
'text plus spaces at end should be cleaned and newline must remain' '
echo "$ttt" >expect &&
echo "$ttt$sss" | git stripspace >actual &&
test_cmp expect actual &&
echo "$ttt" >expect &&
echo "$ttt$sss$sss" | git stripspace >actual &&
test_cmp expect actual &&
echo "$ttt" >expect &&
echo "$ttt$sss$sss$sss" | git stripspace >actual &&
test_cmp expect actual &&
echo "$ttt$ttt" >expect &&
echo "$ttt$ttt$sss" | git stripspace >actual &&
test_cmp expect actual &&
echo "$ttt$ttt" >expect &&
echo "$ttt$ttt$sss$sss" | git stripspace >actual &&
test_cmp expect actual &&
echo "$ttt$ttt$ttt" >expect &&
echo "$ttt$ttt$ttt$sss" | git stripspace >actual &&
test_cmp expect actual
'
# spaces only:
test_expect_success \
'spaces with newline at end should be replaced with empty string' '
printf "" >expect &&
echo | git stripspace >actual &&
test_cmp expect actual &&
echo "$sss" | git stripspace >actual &&
test_cmp expect actual &&
echo "$sss$sss" | git stripspace >actual &&
test_cmp expect actual &&
echo "$sss$sss$sss" | git stripspace >actual &&
test_cmp expect actual &&
echo "$sss$sss$sss$sss" | git stripspace >actual &&
test_cmp expect actual
'
test_expect_success \
'spaces without newline at end should not show spaces' '
! (printf "" | git stripspace | grep " " >/dev/null) &&
! (printf "$sss" | git stripspace | grep " " >/dev/null) &&
! (printf "$sss$sss" | git stripspace | grep " " >/dev/null) &&
! (printf "$sss$sss$sss" | git stripspace | grep " " >/dev/null) &&
! (printf "$sss$sss$sss$sss" | git stripspace | grep " " >/dev/null)
'
test_expect_success \
'spaces without newline at end should be replaced with empty string' '
printf "" >expect &&
printf "" | git stripspace >actual &&
test_cmp expect actual &&
printf "$sss$sss" | git stripspace >actual &&
test_cmp expect actual &&
printf "$sss$sss$sss" | git stripspace >actual &&
test_cmp expect actual &&
printf "$sss$sss$sss$sss" | git stripspace >actual &&
test_cmp expect actual
'
test_expect_success \
'consecutive text lines should be unchanged' '
printf "$ttt$ttt\n$ttt\n" >expect &&
printf "$ttt$ttt\n$ttt\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt\n$ttt$ttt\n$ttt\n" >expect &&
printf "$ttt\n$ttt$ttt\n$ttt\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt\n$ttt\n$ttt\n$ttt$ttt\n" >expect &&
printf "$ttt\n$ttt\n$ttt\n$ttt$ttt\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt\n$ttt\n\n$ttt$ttt\n$ttt\n" >expect &&
printf "$ttt\n$ttt\n\n$ttt$ttt\n$ttt\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt$ttt\n\n$ttt\n$ttt$ttt\n" >expect &&
printf "$ttt$ttt\n\n$ttt\n$ttt$ttt\n" | git stripspace >actual &&
test_cmp expect actual &&
printf "$ttt\n$ttt$ttt\n\n$ttt\n" >expect &&
printf "$ttt\n$ttt$ttt\n\n$ttt\n" | git stripspace >actual &&
test_cmp expect actual
'
test_expect_success 'strip comments, too' '
test ! -z "$(echo "# comment" | git stripspace)" &&
test -z "$(echo "# comment" | git stripspace -s)"
'
test_done