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-rw-r--r--src/nvim/testdir/test_breakindent.vim298
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diff --git a/src/nvim/testdir/test_breakindent.vim b/src/nvim/testdir/test_breakindent.vim
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+" Test for breakindent
+"
+" Note: if you get strange failures when adding new tests, it might be that
+" while the test is run, the breakindent cacheing gets in its way.
+" It helps to change the tabstop setting and force a redraw (e.g. see
+" Test_breakindent08())
+if !exists('+breakindent')
+ finish
+endif
+
+source view_util.vim
+
+let s:input ="\tabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOP"
+
+function s:screen_lines(lnum, width) abort
+ return ScreenLines([a:lnum, a:lnum + 2], a:width)
+endfunction
+
+function! s:compare_lines(expect, actual)
+ call assert_equal(join(a:expect, "\n"), join(a:actual, "\n"))
+endfunction
+
+function s:test_windows(...)
+ call NewWindow(10, 20)
+ setl ts=4 sw=4 sts=4 breakindent
+ put =s:input
+ exe get(a:000, 0, '')
+endfunction
+
+function s:close_windows(...)
+ call CloseWindow()
+ exe get(a:000, 0, '')
+endfunction
+
+function Test_breakindent01()
+ " simple breakindent test
+ call s:test_windows('setl briopt=min:0')
+ let lines=s:screen_lines(line('.'),8)
+ let expect=[
+\ " abcd",
+\ " qrst",
+\ " GHIJ",
+\ ]
+ call s:compare_lines(expect, lines)
+ call s:close_windows()
+endfunction
+
+function Test_breakindent02()
+ " simple breakindent test with showbreak set
+ call s:test_windows('setl briopt=min:0 sbr=>>')
+ let lines=s:screen_lines(line('.'),8)
+ let expect=[
+\ " abcd",
+\ " >>qr",
+\ " >>EF",
+\ ]
+ call s:compare_lines(expect, lines)
+ call s:close_windows('set sbr=')
+endfunction
+
+function Test_breakindent03()
+ " simple breakindent test with showbreak set and briopt including sbr
+ call s:test_windows('setl briopt=sbr,min:0 sbr=++')
+ let lines=s:screen_lines(line('.'),8)
+ let expect=[
+\ " abcd",
+\ "++ qrst",
+\ "++ GHIJ",
+\ ]
+ call s:compare_lines(expect, lines)
+ " clean up
+ call s:close_windows('set sbr=')
+endfunction
+
+function Test_breakindent04()
+ " breakindent set with min width 18
+ call s:test_windows('setl sbr= briopt=min:18')
+ let lines=s:screen_lines(line('.'),8)
+ let expect=[
+\ " abcd",
+\ " qrstuv",
+\ " IJKLMN",
+\ ]
+ call s:compare_lines(expect, lines)
+ " clean up
+ call s:close_windows('set sbr=')
+endfunction
+
+function Test_breakindent05()
+ " breakindent set and shift by 2
+ call s:test_windows('setl briopt=shift:2,min:0')
+ let lines=s:screen_lines(line('.'),8)
+ let expect=[
+\ " abcd",
+\ " qr",
+\ " EF",
+\ ]
+ call s:compare_lines(expect, lines)
+ call s:close_windows()
+endfunction
+
+function Test_breakindent06()
+ " breakindent set and shift by -1
+ call s:test_windows('setl briopt=shift:-1,min:0')
+ let lines=s:screen_lines(line('.'),8)
+ let expect=[
+\ " abcd",
+\ " qrstu",
+\ " HIJKL",
+\ ]
+ call s:compare_lines(expect, lines)
+ call s:close_windows()
+endfunction
+
+function Test_breakindent07()
+ " breakindent set and shift by 1, Number set sbr=? and briopt:sbr
+ call s:test_windows('setl briopt=shift:1,sbr,min:0 nu sbr=? nuw=4 cpo+=n')
+ let lines=s:screen_lines(line('.'),10)
+ let expect=[
+\ " 2 ab",
+\ "? m",
+\ "? x",
+\ ]
+ call s:compare_lines(expect, lines)
+ " clean up
+ call s:close_windows('set sbr= cpo-=n')
+endfunction
+
+function Test_breakindent07a()
+ " breakindent set and shift by 1, Number set sbr=? and briopt:sbr
+ call s:test_windows('setl briopt=shift:1,sbr,min:0 nu sbr=? nuw=4')
+ let lines=s:screen_lines(line('.'),10)
+ let expect=[
+\ " 2 ab",
+\ " ? m",
+\ " ? x",
+\ ]
+ call s:compare_lines(expect, lines)
+ " clean up
+ call s:close_windows('set sbr=')
+endfunction
+
+function Test_breakindent08()
+ " breakindent set and shift by 1, Number and list set sbr=# and briopt:sbr
+ call s:test_windows('setl briopt=shift:1,sbr,min:0 nu nuw=4 sbr=# list cpo+=n ts=4')
+ " make sure, cache is invalidated!
+ set ts=8
+ redraw!
+ set ts=4
+ redraw!
+ let lines=s:screen_lines(line('.'),10)
+ let expect=[
+\ " 2 ^Iabcd",
+\ "# opq",
+\ "# BCD",
+\ ]
+ call s:compare_lines(expect, lines)
+ call s:close_windows('set sbr= cpo-=n')
+endfunction
+
+function Test_breakindent08a()
+ " breakindent set and shift by 1, Number and list set sbr=# and briopt:sbr
+ call s:test_windows('setl briopt=shift:1,sbr,min:0 nu nuw=4 sbr=# list')
+ let lines=s:screen_lines(line('.'),10)
+ let expect=[
+\ " 2 ^Iabcd",
+\ " # opq",
+\ " # BCD",
+\ ]
+ call s:compare_lines(expect, lines)
+ call s:close_windows('set sbr=')
+endfunction
+
+function Test_breakindent09()
+ " breakindent set and shift by 1, Number and list set sbr=#
+ call s:test_windows('setl briopt=shift:1,min:0 nu nuw=4 sbr=# list')
+ let lines=s:screen_lines(line('.'),10)
+ let expect=[
+\ " 2 ^Iabcd",
+\ " #op",
+\ " #AB",
+\ ]
+ call s:compare_lines(expect, lines)
+ call s:close_windows('set sbr=')
+endfunction
+
+function Test_breakindent10()
+ " breakindent set, Number set sbr=~
+ call s:test_windows('setl cpo+=n sbr=~ nu nuw=4 nolist briopt=sbr,min:0')
+ " make sure, cache is invalidated!
+ set ts=8
+ redraw!
+ set ts=4
+ redraw!
+ let lines=s:screen_lines(line('.'),10)
+ let expect=[
+\ " 2 ab",
+\ "~ mn",
+\ "~ yz",
+\ ]
+ call s:compare_lines(expect, lines)
+ call s:close_windows('set sbr= cpo-=n')
+endfunction
+
+function Test_breakindent11()
+ " test strdisplaywidth()
+ call s:test_windows('setl cpo-=n sbr=>> nu nuw=4 nolist briopt= ts=4')
+ let text=getline(2)
+ let width = strlen(text[1:])+indent(2)+strlen(&sbr)*3 " text wraps 3 times
+ call assert_equal(width, strdisplaywidth(text))
+ call s:close_windows('set sbr=')
+endfunction
+
+function Test_breakindent12()
+ " test breakindent with long indent
+ let s:input="\t\t\t\t\t{"
+ call s:test_windows('setl breakindent linebreak briopt=min:10 nu numberwidth=3 ts=4 list listchars=tab:>-')
+ let lines=s:screen_lines(2,16)
+ let expect=[
+\ " 2 >--->--->--->",
+\ " ---{ ",
+\ "~ ",
+\ ]
+ call s:compare_lines(expect, lines)
+ call s:close_windows('set nuw=4 listchars=')
+endfunction
+
+function Test_breakindent13()
+ let s:input=""
+ call s:test_windows('setl breakindent briopt=min:10 ts=8')
+ vert resize 20
+ call setline(1, [" a\tb\tc\td\te", " z y x w v"])
+ 1
+ norm! fbgj"ayl
+ 2
+ norm! fygj"byl
+ call assert_equal('d', @a)
+ call assert_equal('w', @b)
+ call s:close_windows()
+endfunction
+
+function Test_breakindent14()
+ let s:input=""
+ call s:test_windows('setl breakindent briopt= ts=8')
+ vert resize 30
+ norm! 3a1234567890
+ norm! a abcde
+ exec "norm! 0\<C-V>tex"
+ let lines=s:screen_lines(line('.'),8)
+ let expect=[
+\ "e ",
+\ "~ ",
+\ "~ ",
+\ ]
+ call s:compare_lines(expect, lines)
+ call s:close_windows()
+endfunction
+
+function Test_breakindent15()
+ let s:input=""
+ call s:test_windows('setl breakindent briopt= ts=8 sw=8')
+ vert resize 30
+ norm! 4a1234567890
+ exe "normal! >>\<C-V>3f0x"
+ let lines=s:screen_lines(line('.'),20)
+ let expect=[
+\ " 1234567890 ",
+\ "~ ",
+\ "~ ",
+\ ]
+ call s:compare_lines(expect, lines)
+ call s:close_windows()
+endfunction
+
+function Test_breakindent16()
+ " Check that overlong lines are indented correctly.
+ let s:input=""
+ call s:test_windows('setl breakindent briopt=min:0 ts=4')
+ call setline(1, "\t".repeat("1234567890", 10))
+ resize 6
+ norm! 1gg$
+ redraw!
+ let lines=s:screen_lines(1,10)
+ let expect=[
+\ " 789012",
+\ " 345678",
+\ " 901234",
+\ ]
+ call s:compare_lines(expect, lines)
+ let lines=s:screen_lines(4,10)
+ let expect=[
+\ " 567890",
+\ " 123456",
+\ " 7890 ",
+\ ]
+ call s:compare_lines(expect, lines)
+ call s:close_windows()
+endfunction
generated by cgit (git 2.34.1) at 2025-07-25 10:03:23 +0000