#!/bin/sh
set -e

TESTDIR=$(readlink -f $(dirname $0))
. $TESTDIR/framework

setupenvironment
configarchitecture 'i386'

echo 'Package: coolstuff
Version: 0.8.15
Description: collection of stuff
 A lot, too much to iterate all, but at least this:
 - stuff
 - more stuff
 - even more stuff
 .
 And a cow.

Package: oldstuff
Version: 0-1
Description: collection of outdated stuff
 A lot, but of no use nowadays, but at least this:
 - stuff
 - more stuff
 - even more stuff
 .
 And a dog.' > Packages

testrred() {
	msgtest "$1" "$2"
	if [ -z "$3" ]; then
		echo -n '' > Packages.ed
	else
		echo "$3" > Packages.ed
	fi
	rred() {
		cat Packages | runapt "${METHODSDIR}/rred" "$@"
	}
	testsuccessequal "$4" --nomsg rred -f Packages.ed
}

testrred 'Remove' 'first line' '1d' "$(tail -n +2 ./Packages)"
testrred 'Remove' 'empty line' '10d' "$(head -n 9 ./Packages)
$(tail -n 9 ./Packages)"
testrred 'Remove' 'line in a paragraph' '5d' "$(head -n 4 ./Packages)
$(tail -n 14 ./Packages)"
testrred 'Remove' 'last line' '19d' "$(head -n -1 ./Packages)"
testrred 'Remove' 'multiple single lines' '17d
7d' "$(sed -e '/^ - even more stuff$/ d' ./Packages)"
testrred 'Remove' 'first paragraph' '1,10d' "$(tail -n 9 ./Packages)"
testrred 'Remove' 'a few lines in the middle' '5,14d' "$(head -n 4 ./Packages)
$(tail -n 5 ./Packages)"
testrred 'Remove' 'second paragraph' '10,19d' "$(head -n 9 ./Packages)"
testrred 'Mass Remove' 'all stuff lines' '15,17d
13d
11d
5,7d
3d
1d' "$(sed '/stuff/ d' ./Packages)"

testrred 'Single line add' 'first line' '0a
Format: 3.0 (native)
.' "Format: 3.0 (native)
$(cat ./Packages)"
testrred 'Single line add' 'last line' '19a
Multi-Arch: foreign
.' "$(cat ./Packages)
Multi-Arch: foreign"
testrred 'Single line add' 'middle' '9a
Multi-Arch: foreign
.' "$(head -n 9 ./Packages)
Multi-Arch: foreign
$(tail -n 10 ./Packages)"

testrred 'Multi line add' 'first line' '0a
Format: 3.0 (native)
Source: apt
.' "Format: 3.0 (native)
Source: apt
$(cat ./Packages)"
testrred 'Multi line add' 'last line' '19a
Multi-Arch: foreign
Homepage: https://debian.org
.' "$(cat ./Packages)
Multi-Arch: foreign
Homepage: https://debian.org"
testrred 'Multi line add' 'middle' '9a
Multi-Arch: foreign
Homepage: https://debian.org
.' "$(head -n 9 ./Packages)
Multi-Arch: foreign
Homepage: https://debian.org
$(tail -n 10 ./Packages)"

testrred 'Single line change' 'first line' '1c
Package: supercoolstuff
.' "Package: supercoolstuff
$(tail -n +2 ./Packages)"
testrred 'Single line change' 'in the middle' '9c
 And a super cow.
.' "$(head -n 8 ./Packages)
 And a super cow.
$(tail -n 10 ./Packages)"
testrred 'Single line change' 'an empty line' '10c

.' "$(head -n 9 ./Packages)

$(tail -n 9 ./Packages)"
testrred 'Single line change' 'a spacy line' '10c
   	  
.' "$(head -n 9 ./Packages)
   	  
$(tail -n 9 ./Packages)"
testrred 'Single line change' 'last line' '19c
 And a cat.
.' "$(head -n -1 ./Packages)
 And a cat."

testrred 'Multi line change' 'exchange' '5,7c
 - good stuff
 - more good stuff
 - even more good stuff
.' "$(head -n 4 ./Packages)
 - good stuff
 - more good stuff
 - even more good stuff
$(tail -n 12 ./Packages)"
testrred 'Multi line change' 'less' '5,7c
 - good stuff
 - more good stuff
.' "$(head -n 4 ./Packages)
 - good stuff
 - more good stuff
$(tail -n 12 ./Packages)"
testrred 'Multi line change' 'more' '5,7c
 - good stuff
 - more good stuff
 - even more good stuff
 - bonus good stuff
.' "$(head -n 4 ./Packages)
 - good stuff
 - more good stuff
 - even more good stuff
 - bonus good stuff
$(tail -n 12 ./Packages)"

failrred() {
	msgtest 'Failure caused by' "$1"
	echo "$2" > Packages.ed
	rred() {
		cat Packages | runapt "${METHODSDIR}/rred" "$@"
	}
	testfailure --nomsg rred -f Packages.ed
}

failrred 'Bogus content' '<html>
</html>'

# not a problem per-se, but we want our parser to be really strict
failrred 'Empty patch file' ''
failrred 'Empty line patch file' '
'
failrred 'Empty line before command' '
1d'
failrred 'Empty line after command' '1d
'
failrred 'Empty line between commands' '17d

7d'
failrred 'Empty spaces lines before command' '   	   
1d'
failrred 'Empty spaces lines after command' '1d
  	   '
failrred 'Empty spaces lines between commands' '17d
  	   
7d'

# the line before the first one can't be deleted/changed
failrred 'zero line delete' '0d'
failrred 'zero line change' '0c
Package: supercoolstuff
.'
# and this makes no sense at all
failrred 'negative line delete' '-1d'
failrred 'negative line change' '-1c
Package: supercoolstuff
.'
failrred 'negative line add' '-1a
Package: supercoolstuff
.'
failrred 'Wrong order of commands' '7d
17d'
failrred 'End before start' '7,6d'
