#!/bin/sh

test_description='Check content on diff page'
. ./setup.sh

test_expect_success 'generate foo/diff' 'cgit_url "foo/diff" >tmp'
test_expect_success 'find diff header' 'grep "a/file-5 b/file-5" tmp'
test_expect_success 'find blob link' 'grep "<a href=./foo/tree/file-5?id=" tmp'
test_expect_success 'find added file' 'grep "new file mode 100644" tmp'

test_expect_success 'find hunk header' '
	grep "<div class=.hunk.>@@ -0,0 +1 @@</div>" tmp
'

test_expect_success 'find added line' '
	grep "<div class=.add.>+5</div>" tmp
'

test_expect_success 'ref picker: from: select present' '
	grep "<select name=.id2." tmp
'

test_expect_success 'ref picker: to: select present' '
	grep "<select name=.id." tmp
'

test_expect_success 'ref picker: from: label present' '
	grep "from:" tmp
'

test_expect_success 'ref picker: to: label present' '
	grep "to:" tmp
'

test_expect_success 'ref pickers live in a separate refs panel' '
	grep "<b>diff refs</b>" tmp &&
	grep "<b>diff options</b>" tmp
'

test_expect_success 'ref picker: master branch listed' '
	grep "master" tmp
'

test_expect_success 'ref picker: auto-submit on change' '
	grep "onchange=.this.form.submit()." tmp
'

test_expect_success 'flip link present' '
	grep "<a title=.swap from and to. class=.button. href=./foo/diff/?" tmp
'

test_expect_success 'flip link swaps the default refs' '
	grep "/foo/diff/?id2=master&amp;idoff=1" tmp
'

test_expect_success 'compare two refs: foo/diff?id=master&id2=HEAD' '
	cgit_query "url=foo/diff&id=master&id2=HEAD" >tmp
'

test_expect_success 'diff with explicit refs shows diffstat' '
	grep "diffstat" tmp
'

test_expect_success 'diff with oid2 parameter uses it for old ref' '
	cgit_query "url=foo/diff&id=master&id2=HEAD" >tmp &&
	grep "from:" tmp
'

test_expect_success 'ref picker: to: shows master when id=master' '
	cgit_query "url=foo/diff&id=master" >tmp &&
	grep "master" tmp
'

test_expect_success 'ref picker: from: empty when no id2' '
	cgit_query "url=foo/diff" >tmp &&
	grep "<select name=.id2." tmp
'

test_expect_success 'compare initial commit with HEAD' '
	root=$(git --git-dir="$PWD/repos/foo/.git" rev-list --max-parents=0 HEAD) &&
	cgit_query "url=foo/diff&id=HEAD&id2=$root" >tmp
'

test_expect_success 'diff with HEAD and root shows content' '
	grep "diffstat" tmp
'

test_expect_success 'flip link swaps explicit refs' '
	cgit_query "url=foo/diff&id=master&id2=HEAD" >tmp &&
	grep "/foo/diff/?id=HEAD&amp;id2=master" tmp
'

test_expect_success 'flip link omits id for a diff against a root commit' '
	root=$(git --git-dir="$PWD/repos/foo/.git" rev-list --max-parents=0 HEAD) &&
	cgit_query "url=foo/diff&id=$root" >tmp &&
	grep "href=./foo/diff/?id2=$root." tmp
'

test_expect_success 'offset input: to: present' '
	grep "name=.idoff." tmp
'

test_expect_success 'offset input: from: present' '
	grep "name=.id2off." tmp
'

test_expect_success 'apply button present' '
	grep "value=.apply." tmp
'

test_expect_success 'offset: idoff steps back the to ref' '
	cgit_query "url=foo/diff&id=master&idoff=1" >tmp &&
	grep "a/file-4 b/file-4" tmp
'

test_expect_success 'offset: id2off steps back the from ref' '
	cgit_query "url=foo/diff&id=master&id2=master&id2off=2" >tmp &&
	grep "a/file-5 b/file-5" tmp
'

test_expect_success 'offset: filled input and hidden field' '
	cgit_query "url=foo/diff&id=master&idoff=1" >tmp &&
	grep "title=.N commits back from the selected ref. value=.1.>" tmp &&
	grep "type=.hidden. name=.idoff. value=.1./>" tmp
'

test_expect_success 'offset: too large 404s with the stepped rev' '
	cgit_query "url=foo/diff&id=master&id2=master&id2off=9" >tmp &&
	grep "Bad object name: master~9" tmp
'

test_expect_success 'empty id2 does not 404' '
	cgit_query "url=foo/diff&id=master&id2=" >tmp &&
	grep "diffstat" tmp &&
	! grep "Bad object name" tmp
'

test_expect_success 'file link carries the offsets' '
	cgit_query "url=foo/diff&id=master&id2=master&id2off=2" >tmp &&
	grep "/foo/diff/file-5?id2=master&amp;id2off=2" tmp
'

test_expect_success 'flip link carries the offsets' '
	cgit_query "url=foo/diff&id=master&id2=master&idoff=1&id2off=2" >tmp &&
	grep "/foo/diff/?id2=master&amp;idoff=2&amp;id2off=1" tmp
'

test_done