t/t4124-apply-ws-rule.sh - git - Git at Google

 #!/bin/sh

 test_description='core.whitespace rules and git apply'

 . ./test-lib.sh

 prepare_test_file () {

 	# A line that has character X is touched iff RULE is in effect:
 	#       X  RULE
 	#   	!  trailing-space
 	#   	@  space-before-tab
 	#   	#  indent-with-non-tab (default tab width 8)
 	#	=  indent-with-non-tab,tabwidth=16
 	#   	%  tab-in-indent
 	sed -e "s/_/ /g" -e "s/>/	/" <<-\EOF
 		An_SP in an ordinary line>and a HT.
 		>A HT (%).
 		_>A SP and a HT (@%).
 		_>_A SP, a HT and a SP (@%).
 		_______Seven SP.
 		________Eight SP (#).
 		_______>Seven SP and a HT (@%).
 		________>Eight SP and a HT (@#%).
 		_______>_Seven SP, a HT and a SP (@%).
 		________>_Eight SP, a HT and a SP (@#%).
 		_______________Fifteen SP (#).
 		_______________>Fifteen SP and a HT (@#%).
 		________________Sixteen SP (#=).
 		________________>Sixteen SP and a HT (@#%=).
 		_____a__Five SP, a non WS, two SP.
 		A line with a (!) trailing SP_
 		A line with a (!) trailing HT>
 	EOF
 }

 apply_patch () {
 	>target &&
 	sed -e "s|\([ab]\)/file|\1/target|" <patch |
 	git apply "$@"
 }

 test_fix () {
 	# fix should not barf
 	apply_patch --whitespace=fix || return 1

 	# find touched lines
 	$DIFF file target | sed -n -e "s/^> //p" >fixed

 	# the changed lines are all expected to change
 	fixed_cnt=$(wc -l <fixed)
 	case "$1" in
 	'') expect_cnt=$fixed_cnt ;;
 	?*) expect_cnt=$(grep "[$1]" <fixed | wc -l) ;;
 	esac
 	test $fixed_cnt -eq $expect_cnt || return 1

 	# and we are not missing anything
 	case "$1" in
 	'') expect_cnt=0 ;;
 	?*) expect_cnt=$(grep "[$1]" <file | wc -l) ;;
 	esac
 	test $fixed_cnt -eq $expect_cnt || return 1

 	# Get the patch actually applied
 	git diff-files -p target >fixed-patch
 	test -s fixed-patch && return 0

 	# Make sure it is complaint-free
 	>target
 	git apply --whitespace=error-all <fixed-patch

 }

 test_expect_success setup '

 	>file &&
 	git add file &&
 	prepare_test_file >file &&
 	git diff-files -p >patch &&
 	>target &&
 	git add target

 '

 test_expect_success 'whitespace=nowarn, default rule' '

 	apply_patch --whitespace=nowarn &&
 	test_cmp file target

 '

 test_expect_success 'whitespace=warn, default rule' '

 	apply_patch --whitespace=warn &&
 	test_cmp file target

 '

 test_expect_success 'whitespace=error-all, default rule' '

 	test_must_fail apply_patch --whitespace=error-all &&
 	test_must_be_empty target

 '

 test_expect_success 'whitespace=error-all, no rule' '

 	git config core.whitespace -trailing,-space-before,-indent &&
 	apply_patch --whitespace=error-all &&
 	test_cmp file target

 '

 test_expect_success 'whitespace=error-all, no rule (attribute)' '

 	git config --unset core.whitespace &&
 	echo "target -whitespace" >.gitattributes &&
 	apply_patch --whitespace=error-all &&
 	test_cmp file target

 '

 test_expect_success 'spaces inserted by tab-in-indent' '

 	git config core.whitespace -trailing,-space,-indent,tab &&
 	rm -f .gitattributes &&
 	test_fix % &&
 	sed -e "s/_/ /g" -e "s/>/	/" <<-\EOF >expect &&
 		An_SP in an ordinary line>and a HT.
 		________A HT (%).
 		________A SP and a HT (@%).
 		_________A SP, a HT and a SP (@%).
 		_______Seven SP.
 		________Eight SP (#).
 		________Seven SP and a HT (@%).
 		________________Eight SP and a HT (@#%).
 		_________Seven SP, a HT and a SP (@%).
 		_________________Eight SP, a HT and a SP (@#%).
 		_______________Fifteen SP (#).
 		________________Fifteen SP and a HT (@#%).
 		________________Sixteen SP (#=).
 		________________________Sixteen SP and a HT (@#%=).
 		_____a__Five SP, a non WS, two SP.
 		A line with a (!) trailing SP_
 		A line with a (!) trailing HT>
 	EOF
 	test_cmp expect target

 '

 for t in - ''
 do
 	case "$t" in '') tt='!' ;; *) tt= ;; esac
 	for s in - ''
 	do
 		case "$s" in '') ts='@' ;; *) ts= ;; esac
 		for i in - ''
 		do
 			case "$i" in '') ti='#' ti16='=';; *) ti= ti16= ;; esac
 			for h in - ''
 			do
 				[ -z "$h$i" ] && continue
 				case "$h" in '') th='%' ;; *) th= ;; esac
 				rule=${t}trailing,${s}space,${i}indent,${h}tab

 				rm -f .gitattributes
 				test_expect_success "rule=$rule" '
 					git config core.whitespace "$rule" &&
 					test_fix "$tt$ts$ti$th"
 				'

 				test_expect_success "rule=$rule,tabwidth=16" '
 					git config core.whitespace "$rule,tabwidth=16" &&
 					test_fix "$tt$ts$ti16$th"
 				'

 				test_expect_success "rule=$rule (attributes)" '
 					git config --unset core.whitespace &&
 					echo "target whitespace=$rule" >.gitattributes &&
 					test_fix "$tt$ts$ti$th"
 				'

 				test_expect_success "rule=$rule,tabwidth=16 (attributes)" '
 					echo "target whitespace=$rule,tabwidth=16" >.gitattributes &&
 					test_fix "$tt$ts$ti16$th"
 				'

 			done
 		done
 	done
 done

 create_patch () {
 	sed -e "s/_/ /" <<-\EOF
 		diff --git a/target b/target
 		index e69de29..8bd6648 100644
 		--- a/target
 		+++ b/target
 		@@ -0,0 +1,3 @@
 		+An empty line follows
 		+
 		+A line with trailing whitespace and no newline_
 		\ No newline at end of file
 	EOF
 }

 test_expect_success 'trailing whitespace & no newline at the end of file' '
 	>target &&
 	create_patch >patch-file &&
 	git apply --whitespace=fix patch-file &&
 	grep "newline$" target &&
 	grep "^$" target
 '

 test_expect_success 'blank at EOF with --whitespace=fix (1)' '
 	test_might_fail git config --unset core.whitespace &&
 	rm -f .gitattributes &&

 	{ echo a; echo b; echo c; } >one &&
 	git add one &&
 	{ echo a; echo b; echo c; } >expect &&
 	{ cat expect; echo; } >one &&
 	git diff -- one >patch &&

 	git checkout one &&
 	git apply --whitespace=fix patch &&
 	test_cmp expect one
 '

 test_expect_success 'blank at EOF with --whitespace=fix (2)' '
 	{ echo a; echo b; echo c; } >one &&
 	git add one &&
 	{ echo a; echo c; } >expect &&
 	{ cat expect; echo; echo; } >one &&
 	git diff -- one >patch &&

 	git checkout one &&
 	git apply --whitespace=fix patch &&
 	test_cmp expect one
 '

 test_expect_success 'blank at EOF with --whitespace=fix (3)' '
 	{ echo a; echo b; echo; } >one &&
 	git add one &&
 	{ echo a; echo c; echo; } >expect &&
 	{ cat expect; echo; echo; } >one &&
 	git diff -- one >patch &&

 	git checkout one &&
 	git apply --whitespace=fix patch &&
 	test_cmp expect one
 '

 test_expect_success 'blank at end of hunk, not at EOF with --whitespace=fix' '
 	{ echo a; echo b; echo; echo; echo; echo; echo; echo d; } >one &&
 	git add one &&
 	{ echo a; echo c; echo; echo; echo; echo; echo; echo; echo d; } >expect &&
 	cp expect one &&
 	git diff -- one >patch &&

 	git checkout one &&
 	git apply --whitespace=fix patch &&
 	test_cmp expect one
 '

 test_expect_success 'blank at EOF with --whitespace=warn' '
 	{ echo a; echo b; echo c; } >one &&
 	git add one &&
 	echo >>one &&
 	cat one >expect &&
 	git diff -- one >patch &&

 	git checkout one &&
 	git apply --whitespace=warn patch 2>error &&
 	test_cmp expect one &&
 	grep "new blank line at EOF" error
 '

 test_expect_success 'blank at EOF with --whitespace=error' '
 	{ echo a; echo b; echo c; } >one &&
 	git add one &&
 	cat one >expect &&
 	echo >>one &&
 	git diff -- one >patch &&

 	git checkout one &&
 	test_must_fail git apply --whitespace=error patch 2>error &&
 	test_cmp expect one &&
 	grep "new blank line at EOF" error
 '

 test_expect_success 'blank but not empty at EOF' '
 	{ echo a; echo b; echo c; } >one &&
 	git add one &&
 	echo "   " >>one &&
 	cat one >expect &&
 	git diff -- one >patch &&

 	git checkout one &&
 	git apply --whitespace=warn patch 2>error &&
 	test_cmp expect one &&
 	grep "new blank line at EOF" error
 '

 test_expect_success 'applying beyond EOF requires one non-blank context line' '
 	{ echo; echo; echo; echo; } >one &&
 	git add one &&
 	{ echo b; } >>one &&
 	git diff -- one >patch &&

 	git checkout one &&
 	{ echo a; echo; } >one &&
 	cp one expect &&
 	test_must_fail git apply --whitespace=fix patch &&
 	test_cmp expect one &&
 	test_must_fail git apply --ignore-space-change --whitespace=fix patch &&
 	test_cmp expect one
 '

 test_expect_success 'tons of blanks at EOF should not apply' '
 	for i in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16; do
 		echo; echo; echo; echo;
 	done >one &&
 	git add one &&
 	echo a >>one &&
 	git diff -- one >patch &&

 	>one &&
 	test_must_fail git apply --whitespace=fix patch &&
 	test_must_fail git apply --ignore-space-change --whitespace=fix patch
 '

 test_expect_success 'missing blank line at end with --whitespace=fix' '
 	echo a >one &&
 	echo >>one &&
 	git add one &&
 	echo b >>one &&
 	cp one expect &&
 	git diff -- one >patch &&
 	echo a >one &&
 	cp one saved-one &&
 	test_must_fail git apply patch &&
 	git apply --whitespace=fix patch &&
 	test_cmp expect one &&
 	mv saved-one one &&
 	git apply --ignore-space-change --whitespace=fix patch &&
 	test_cmp expect one
 '

 test_expect_success 'two missing blank lines at end with --whitespace=fix' '
 	{ echo a; echo; echo b; echo c; } >one &&
 	cp one no-blank-lines &&
 	{ echo; echo; } >>one &&
 	git add one &&
 	echo d >>one &&
 	cp one expect &&
 	echo >>one &&
 	git diff -- one >patch &&
 	cp no-blank-lines one &&
 	test_must_fail git apply patch &&
 	git apply --whitespace=fix patch &&
 	test_cmp expect one &&
 	mv no-blank-lines one &&
 	test_must_fail git apply patch &&
 	git apply --ignore-space-change --whitespace=fix patch &&
 	test_cmp expect one
 '

 test_expect_success 'missing blank line at end, insert before end, --whitespace=fix' '
 	{ echo a; echo; } >one &&
 	git add one &&
 	{ echo b; echo a; echo; } >one &&
 	cp one expect &&
 	git diff -- one >patch &&
 	echo a >one &&
 	test_must_fail git apply patch &&
 	git apply --whitespace=fix patch &&
 	test_cmp expect one
 '

 test_expect_success 'shrink file with tons of missing blanks at end of file' '
 	{ echo a; echo b; echo c; } >one &&
 	cp one no-blank-lines &&
 	for i in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16; do
 		echo; echo; echo; echo;
 	done >>one &&
 	git add one &&
 	echo a >one &&
 	cp one expect &&
 	git diff -- one >patch &&
 	cp no-blank-lines one &&
 	test_must_fail git apply patch &&
 	git apply --whitespace=fix patch &&
 	test_cmp expect one &&
 	mv no-blank-lines one &&
 	git apply --ignore-space-change --whitespace=fix patch &&
 	test_cmp expect one
 '

 test_expect_success 'missing blanks at EOF must only match blank lines' '
 	{ echo a; echo b; } >one &&
 	git add one &&
 	{ echo c; echo d; } >>one &&
 	git diff -- one >patch &&

 	echo a >one &&
 	test_must_fail git apply patch &&
 	test_must_fail git apply --whitespace=fix patch &&
 	test_must_fail git apply --ignore-space-change --whitespace=fix patch
 '

 sed -e's/Z//' >one <<EOF
 a
 b
 c
 		      Z
 EOF

 test_expect_success 'missing blank line should match context line with spaces' '
 	git add one &&
 	echo d >>one &&
 	git diff -- one >patch &&
 	{ echo a; echo b; echo c; } >one &&
 	cp one expect &&
 	{ echo; echo d; } >>expect &&
 	git add one &&

 	git apply --whitespace=fix patch &&
 	test_cmp expect one
 '

 sed -e's/Z//' >one <<EOF
 a
 b
 c
 		      Z
 EOF

 test_expect_success 'same, but with the --ignore-space-option' '
 	git add one &&
 	echo d >>one &&
 	cp one expect &&
 	git diff -- one >patch &&
 	{ echo a; echo b; echo c; } >one &&
 	git add one &&

 	git checkout-index -f one &&
 	git apply --ignore-space-change --whitespace=fix patch &&
 	test_cmp expect one
 '

 test_expect_success 'same, but with CR-LF line endings && cr-at-eol set' '
 	git config core.whitespace cr-at-eol &&
 	printf "a\r\n" >one &&
 	printf "b\r\n" >>one &&
 	printf "c\r\n" >>one &&
 	cp one save-one &&
 	printf "                 \r\n" >>one &&
 	git add one &&
 	printf "d\r\n" >>one &&
 	cp one expect &&
 	git diff -- one >patch &&
 	mv save-one one &&

 	git apply --ignore-space-change --whitespace=fix patch &&
 	test_cmp expect one
 '

 test_expect_success 'CR-LF line endings && add line && text=auto' '
 	git config --unset core.whitespace &&
 	printf "a\r\n" >one &&
 	cp one save-one &&
 	git add one &&
 	printf "b\r\n" >>one &&
 	cp one expect &&
 	git diff -- one >patch &&
 	mv save-one one &&
 	echo "one text=auto" >.gitattributes &&
 	git apply patch &&
 	test_cmp expect one
 '

 test_expect_success 'CR-LF line endings && change line && text=auto' '
 	printf "a\r\n" >one &&
 	cp one save-one &&
 	git add one &&
 	printf "b\r\n" >one &&
 	cp one expect &&
 	git diff -- one >patch &&
 	mv save-one one &&
 	echo "one text=auto" >.gitattributes &&
 	git apply patch &&
 	test_cmp expect one
 '

 test_expect_success 'LF in repo, CRLF in worktree && change line && text=auto' '
 	printf "a\n" >one &&
 	git add one &&
 	printf "b\r\n" >one &&
 	git diff -- one >patch &&
 	printf "a\r\n" >one &&
 	echo "one text=auto" >.gitattributes &&
 	git -c core.eol=CRLF apply patch &&
 	printf "b\r\n" >expect &&
 	test_cmp expect one
 '

 test_expect_success 'whitespace=fix to expand' '
 	qz_to_tab_space >preimage <<-\EOF &&
 	QQa
 	QQb
 	QQc
 	ZZZZZZZZZZZZZZZZd
 	QQe
 	QQf
 	QQg
 	EOF
 	qz_to_tab_space >patch <<-\EOF &&
 	diff --git a/preimage b/preimage
 	--- a/preimage
 	+++ b/preimage
 	@@ -1,7 +1,6 @@
 	 QQa
 	 QQb
 	 QQc
 	-QQd
 	 QQe
 	 QQf
 	 QQg
 	EOF
 	git -c core.whitespace=tab-in-indent apply --whitespace=fix patch
 '

 test_expect_success 'whitespace check skipped for excluded paths' '
 	git config core.whitespace blank-at-eol &&
 	>used &&
 	>unused &&
 	git add used unused &&
 	echo "used" >used &&
 	echo "unused " >unused &&
 	git diff-files -p used unused >patch &&
 	git apply --include=used --stat --whitespace=error <patch
 '

 test_done
	#!/bin/sh

	test_description='core.whitespace rules and git apply'

	. ./test-lib.sh

	prepare_test_file () {

	# A line that has character X is touched iff RULE is in effect:
	# X RULE
	# ! trailing-space
	# @ space-before-tab
	# # indent-with-non-tab (default tab width 8)
	# = indent-with-non-tab,tabwidth=16
	# % tab-in-indent
	sed -e "s/_/ /g" -e "s/>/ /" <<-\EOF
	An_SP in an ordinary line>and a HT.
	>A HT (%).
	_>A SP and a HT (@%).
	_>_A SP, a HT and a SP (@%).
	_______Seven SP.
	________Eight SP (#).
	_______>Seven SP and a HT (@%).
	________>Eight SP and a HT (@#%).
	_______>_Seven SP, a HT and a SP (@%).
	________>_Eight SP, a HT and a SP (@#%).
	_______________Fifteen SP (#).
	_______________>Fifteen SP and a HT (@#%).
	________________Sixteen SP (#=).
	________________>Sixteen SP and a HT (@#%=).
	_____a__Five SP, a non WS, two SP.
	A line with a (!) trailing SP_
	A line with a (!) trailing HT>
	EOF
	}

	apply_patch () {
	>target &&
	sed -e "s\|\([ab]\)/file\|\1/target\|" <patch \|
	git apply "$@"
	}

	test_fix () {
	# fix should not barf
	apply_patch --whitespace=fix \|\| return 1

	# find touched lines
	$DIFF file target \| sed -n -e "s/^> //p" >fixed

	# the changed lines are all expected to change
	fixed_cnt=$(wc -l <fixed)
	case "$1" in
	'') expect_cnt=$fixed_cnt ;;
	?*) expect_cnt=$(grep "[$1]" <fixed \| wc -l) ;;
	esac
	test $fixed_cnt -eq $expect_cnt \|\| return 1

	# and we are not missing anything
	case "$1" in
	'') expect_cnt=0 ;;
	?*) expect_cnt=$(grep "[$1]" <file \| wc -l) ;;
	esac
	test $fixed_cnt -eq $expect_cnt \|\| return 1

	# Get the patch actually applied
	git diff-files -p target >fixed-patch
	test -s fixed-patch && return 0

	# Make sure it is complaint-free
	>target
	git apply --whitespace=error-all <fixed-patch

	}

	test_expect_success setup '

	>file &&
	git add file &&
	prepare_test_file >file &&
	git diff-files -p >patch &&
	>target &&
	git add target

	'

	test_expect_success 'whitespace=nowarn, default rule' '

	apply_patch --whitespace=nowarn &&
	test_cmp file target

	'

	test_expect_success 'whitespace=warn, default rule' '

	apply_patch --whitespace=warn &&
	test_cmp file target

	'

	test_expect_success 'whitespace=error-all, default rule' '

	test_must_fail apply_patch --whitespace=error-all &&
	test_must_be_empty target

	'

	test_expect_success 'whitespace=error-all, no rule' '

	git config core.whitespace -trailing,-space-before,-indent &&
	apply_patch --whitespace=error-all &&
	test_cmp file target

	'

	test_expect_success 'whitespace=error-all, no rule (attribute)' '

	git config --unset core.whitespace &&
	echo "target -whitespace" >.gitattributes &&
	apply_patch --whitespace=error-all &&
	test_cmp file target

	'

	test_expect_success 'spaces inserted by tab-in-indent' '

	git config core.whitespace -trailing,-space,-indent,tab &&
	rm -f .gitattributes &&
	test_fix % &&
	sed -e "s/_/ /g" -e "s/>/ /" <<-\EOF >expect &&
	An_SP in an ordinary line>and a HT.
	________A HT (%).
	________A SP and a HT (@%).
	_________A SP, a HT and a SP (@%).
	_______Seven SP.
	________Eight SP (#).
	________Seven SP and a HT (@%).
	________________Eight SP and a HT (@#%).
	_________Seven SP, a HT and a SP (@%).
	_________________Eight SP, a HT and a SP (@#%).
	_______________Fifteen SP (#).
	________________Fifteen SP and a HT (@#%).
	________________Sixteen SP (#=).
	________________________Sixteen SP and a HT (@#%=).
	_____a__Five SP, a non WS, two SP.
	A line with a (!) trailing SP_
	A line with a (!) trailing HT>
	EOF
	test_cmp expect target

	'

	for t in - ''
	do
	case "$t" in '') tt='!' ;; *) tt= ;; esac
	for s in - ''
	do
	case "$s" in '') ts='@' ;; *) ts= ;; esac
	for i in - ''
	do
	case "$i" in '') ti='#' ti16='=';; *) ti= ti16= ;; esac
	for h in - ''
	do
	[ -z "$h$i" ] && continue
	case "$h" in '') th='%' ;; *) th= ;; esac
	rule=${t}trailing,${s}space,${i}indent,${h}tab

	rm -f .gitattributes
	test_expect_success "rule=$rule" '
	git config core.whitespace "$rule" &&
	test_fix "$tt$ts$ti$th"
	'

	test_expect_success "rule=$rule,tabwidth=16" '
	git config core.whitespace "$rule,tabwidth=16" &&
	test_fix "$tt$ts$ti16$th"
	'

	test_expect_success "rule=$rule (attributes)" '
	git config --unset core.whitespace &&
	echo "target whitespace=$rule" >.gitattributes &&
	test_fix "$tt$ts$ti$th"
	'

	test_expect_success "rule=$rule,tabwidth=16 (attributes)" '
	echo "target whitespace=$rule,tabwidth=16" >.gitattributes &&
	test_fix "$tt$ts$ti16$th"
	'

	done
	done
	done
	done

	create_patch () {
	sed -e "s/_/ /" <<-\EOF
	diff --git a/target b/target
	index e69de29..8bd6648 100644
	--- a/target
	+++ b/target
	@@ -0,0 +1,3 @@
	+An empty line follows
	+
	+A line with trailing whitespace and no newline_
	\ No newline at end of file
	EOF
	}

	test_expect_success 'trailing whitespace & no newline at the end of file' '
	>target &&
	create_patch >patch-file &&
	git apply --whitespace=fix patch-file &&
	grep "newline$" target &&
	grep "^$" target
	'

	test_expect_success 'blank at EOF with --whitespace=fix (1)' '
	test_might_fail git config --unset core.whitespace &&
	rm -f .gitattributes &&

	{ echo a; echo b; echo c; } >one &&
	git add one &&
	{ echo a; echo b; echo c; } >expect &&
	{ cat expect; echo; } >one &&
	git diff -- one >patch &&

	git checkout one &&
	git apply --whitespace=fix patch &&
	test_cmp expect one
	'

	test_expect_success 'blank at EOF with --whitespace=fix (2)' '
	{ echo a; echo b; echo c; } >one &&
	git add one &&
	{ echo a; echo c; } >expect &&
	{ cat expect; echo; echo; } >one &&
	git diff -- one >patch &&

	git checkout one &&
	git apply --whitespace=fix patch &&
	test_cmp expect one
	'

	test_expect_success 'blank at EOF with --whitespace=fix (3)' '
	{ echo a; echo b; echo; } >one &&
	git add one &&
	{ echo a; echo c; echo; } >expect &&
	{ cat expect; echo; echo; } >one &&
	git diff -- one >patch &&

	git checkout one &&
	git apply --whitespace=fix patch &&
	test_cmp expect one
	'

	test_expect_success 'blank at end of hunk, not at EOF with --whitespace=fix' '
	{ echo a; echo b; echo; echo; echo; echo; echo; echo d; } >one &&
	git add one &&
	{ echo a; echo c; echo; echo; echo; echo; echo; echo; echo d; } >expect &&
	cp expect one &&
	git diff -- one >patch &&

	git checkout one &&
	git apply --whitespace=fix patch &&
	test_cmp expect one
	'

	test_expect_success 'blank at EOF with --whitespace=warn' '
	{ echo a; echo b; echo c; } >one &&
	git add one &&
	echo >>one &&
	cat one >expect &&
	git diff -- one >patch &&

	git checkout one &&
	git apply --whitespace=warn patch 2>error &&
	test_cmp expect one &&
	grep "new blank line at EOF" error
	'

	test_expect_success 'blank at EOF with --whitespace=error' '
	{ echo a; echo b; echo c; } >one &&
	git add one &&
	cat one >expect &&
	echo >>one &&
	git diff -- one >patch &&

	git checkout one &&
	test_must_fail git apply --whitespace=error patch 2>error &&
	test_cmp expect one &&
	grep "new blank line at EOF" error
	'

	test_expect_success 'blank but not empty at EOF' '
	{ echo a; echo b; echo c; } >one &&
	git add one &&
	echo " " >>one &&
	cat one >expect &&
	git diff -- one >patch &&

	git checkout one &&
	git apply --whitespace=warn patch 2>error &&
	test_cmp expect one &&
	grep "new blank line at EOF" error
	'

	test_expect_success 'applying beyond EOF requires one non-blank context line' '
	{ echo; echo; echo; echo; } >one &&
	git add one &&
	{ echo b; } >>one &&
	git diff -- one >patch &&

	git checkout one &&
	{ echo a; echo; } >one &&
	cp one expect &&
	test_must_fail git apply --whitespace=fix patch &&
	test_cmp expect one &&
	test_must_fail git apply --ignore-space-change --whitespace=fix patch &&
	test_cmp expect one
	'

	test_expect_success 'tons of blanks at EOF should not apply' '
	for i in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16; do
	echo; echo; echo; echo;
	done >one &&
	git add one &&
	echo a >>one &&
	git diff -- one >patch &&

	>one &&
	test_must_fail git apply --whitespace=fix patch &&
	test_must_fail git apply --ignore-space-change --whitespace=fix patch
	'

	test_expect_success 'missing blank line at end with --whitespace=fix' '
	echo a >one &&
	echo >>one &&
	git add one &&
	echo b >>one &&
	cp one expect &&
	git diff -- one >patch &&
	echo a >one &&
	cp one saved-one &&
	test_must_fail git apply patch &&
	git apply --whitespace=fix patch &&
	test_cmp expect one &&
	mv saved-one one &&
	git apply --ignore-space-change --whitespace=fix patch &&
	test_cmp expect one
	'

	test_expect_success 'two missing blank lines at end with --whitespace=fix' '
	{ echo a; echo; echo b; echo c; } >one &&
	cp one no-blank-lines &&
	{ echo; echo; } >>one &&
	git add one &&
	echo d >>one &&
	cp one expect &&
	echo >>one &&
	git diff -- one >patch &&
	cp no-blank-lines one &&
	test_must_fail git apply patch &&
	git apply --whitespace=fix patch &&
	test_cmp expect one &&
	mv no-blank-lines one &&
	test_must_fail git apply patch &&
	git apply --ignore-space-change --whitespace=fix patch &&
	test_cmp expect one
	'

	test_expect_success 'missing blank line at end, insert before end, --whitespace=fix' '
	{ echo a; echo; } >one &&
	git add one &&
	{ echo b; echo a; echo; } >one &&
	cp one expect &&
	git diff -- one >patch &&
	echo a >one &&
	test_must_fail git apply patch &&
	git apply --whitespace=fix patch &&
	test_cmp expect one
	'

	test_expect_success 'shrink file with tons of missing blanks at end of file' '
	{ echo a; echo b; echo c; } >one &&
	cp one no-blank-lines &&
	for i in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16; do
	echo; echo; echo; echo;
	done >>one &&
	git add one &&
	echo a >one &&
	cp one expect &&
	git diff -- one >patch &&
	cp no-blank-lines one &&
	test_must_fail git apply patch &&
	git apply --whitespace=fix patch &&
	test_cmp expect one &&
	mv no-blank-lines one &&
	git apply --ignore-space-change --whitespace=fix patch &&
	test_cmp expect one
	'

	test_expect_success 'missing blanks at EOF must only match blank lines' '
	{ echo a; echo b; } >one &&
	git add one &&
	{ echo c; echo d; } >>one &&
	git diff -- one >patch &&

	echo a >one &&
	test_must_fail git apply patch &&
	test_must_fail git apply --whitespace=fix patch &&
	test_must_fail git apply --ignore-space-change --whitespace=fix patch
	'

	sed -e's/Z//' >one <<EOF
	a
	b
	c
	Z
	EOF

	test_expect_success 'missing blank line should match context line with spaces' '
	git add one &&
	echo d >>one &&
	git diff -- one >patch &&
	{ echo a; echo b; echo c; } >one &&
	cp one expect &&
	{ echo; echo d; } >>expect &&
	git add one &&

	git apply --whitespace=fix patch &&
	test_cmp expect one
	'

	sed -e's/Z//' >one <<EOF
	a
	b
	c
	Z
	EOF

	test_expect_success 'same, but with the --ignore-space-option' '
	git add one &&
	echo d >>one &&
	cp one expect &&
	git diff -- one >patch &&
	{ echo a; echo b; echo c; } >one &&
	git add one &&

	git checkout-index -f one &&
	git apply --ignore-space-change --whitespace=fix patch &&
	test_cmp expect one
	'

	test_expect_success 'same, but with CR-LF line endings && cr-at-eol set' '
	git config core.whitespace cr-at-eol &&
	printf "a\r\n" >one &&
	printf "b\r\n" >>one &&
	printf "c\r\n" >>one &&
	cp one save-one &&
	printf " \r\n" >>one &&
	git add one &&
	printf "d\r\n" >>one &&
	cp one expect &&
	git diff -- one >patch &&
	mv save-one one &&

	git apply --ignore-space-change --whitespace=fix patch &&
	test_cmp expect one
	'

	test_expect_success 'CR-LF line endings && add line && text=auto' '
	git config --unset core.whitespace &&
	printf "a\r\n" >one &&
	cp one save-one &&
	git add one &&
	printf "b\r\n" >>one &&
	cp one expect &&
	git diff -- one >patch &&
	mv save-one one &&
	echo "one text=auto" >.gitattributes &&
	git apply patch &&
	test_cmp expect one
	'

	test_expect_success 'CR-LF line endings && change line && text=auto' '
	printf "a\r\n" >one &&
	cp one save-one &&
	git add one &&
	printf "b\r\n" >one &&
	cp one expect &&
	git diff -- one >patch &&
	mv save-one one &&
	echo "one text=auto" >.gitattributes &&
	git apply patch &&
	test_cmp expect one
	'

	test_expect_success 'LF in repo, CRLF in worktree && change line && text=auto' '
	printf "a\n" >one &&
	git add one &&
	printf "b\r\n" >one &&
	git diff -- one >patch &&
	printf "a\r\n" >one &&
	echo "one text=auto" >.gitattributes &&
	git -c core.eol=CRLF apply patch &&
	printf "b\r\n" >expect &&
	test_cmp expect one
	'

	test_expect_success 'whitespace=fix to expand' '
	qz_to_tab_space >preimage <<-\EOF &&
	QQa
	QQb
	QQc
	ZZZZZZZZZZZZZZZZd
	QQe
	QQf
	QQg
	EOF
	qz_to_tab_space >patch <<-\EOF &&
	diff --git a/preimage b/preimage
	--- a/preimage
	+++ b/preimage
	@@ -1,7 +1,6 @@
	QQa
	QQb
	QQc
	-QQd
	QQe
	QQf
	QQg
	EOF
	git -c core.whitespace=tab-in-indent apply --whitespace=fix patch
	'

	test_expect_success 'whitespace check skipped for excluded paths' '
	git config core.whitespace blank-at-eol &&
	>used &&
	>unused &&
	git add used unused &&
	echo "used" >used &&
	echo "unused " >unused &&
	git diff-files -p used unused >patch &&
	git apply --include=used --stat --whitespace=error <patch
	'

	test_done