1 files changed, 407 insertions, 1 deletions
diff --git a/src/nvim/testdir/test_functions.vim b/src/nvim/testdir/test_functions.vim
index 398e9ab331..4c31bb5732 100644
--- a/src/nvim/testdir/test_functions.vim
+++ b/src/nvim/testdir/test_functions.vim
@@ -1,5 +1,101 @@
 " Tests for various functions.
 
+" Must be done first, since the alternate buffer must be unset.
+func Test_00_bufexists()
+  call assert_equal(0, bufexists('does_not_exist'))
+  call assert_equal(1, bufexists(bufnr('%')))
+  call assert_equal(0, bufexists(0))
+  new Xfoo
+  let bn = bufnr('%')
+  call assert_equal(1, bufexists(bn))
+  call assert_equal(1, bufexists('Xfoo'))
+  call assert_equal(1, bufexists(getcwd() . '/Xfoo'))
+  call assert_equal(1, bufexists(0))
+  bw
+  call assert_equal(0, bufexists(bn))
+  call assert_equal(0, bufexists('Xfoo'))
+endfunc
+
+func Test_empty()
+  call assert_equal(1, empty(''))
+  call assert_equal(0, empty('a'))
+
+  call assert_equal(1, empty(0))
+  call assert_equal(1, empty(-0))
+  call assert_equal(0, empty(1))
+  call assert_equal(0, empty(-1))
+
+  call assert_equal(1, empty(0.0))
+  call assert_equal(1, empty(-0.0))
+  call assert_equal(0, empty(1.0))
+  call assert_equal(0, empty(-1.0))
+  call assert_equal(0, empty(1.0/0.0))
+  call assert_equal(0, empty(0.0/0.0))
+
+  call assert_equal(1, empty([]))
+  call assert_equal(0, empty(['a']))
+
+  call assert_equal(1, empty({}))
+  call assert_equal(0, empty({'a':1}))
+
+  call assert_equal(1, empty(v:null))
+  " call assert_equal(1, empty(v:none))
+  call assert_equal(1, empty(v:false))
+  call assert_equal(0, empty(v:true))
+
+  if has('channel')
+    call assert_equal(1, empty(test_null_channel()))
+  endif
+  if has('job')
+    call assert_equal(1, empty(test_null_job()))
+  endif
+
+  call assert_equal(0, empty(function('Test_empty')))
+endfunc
+
+func Test_len()
+  call assert_equal(1, len(0))
+  call assert_equal(2, len(12))
+
+  call assert_equal(0, len(''))
+  call assert_equal(2, len('ab'))
+
+  call assert_equal(0, len([]))
+  call assert_equal(2, len([2, 1]))
+
+  call assert_equal(0, len({}))
+  call assert_equal(2, len({'a': 1, 'b': 2}))
+
+  " call assert_fails('call len(v:none)', 'E701:')
+  call assert_fails('call len({-> 0})', 'E701:')
+endfunc
+
+func Test_max()
+  call assert_equal(0, max([]))
+  call assert_equal(2, max([2]))
+  call assert_equal(2, max([1, 2]))
+  call assert_equal(2, max([1, 2, v:null]))
+
+  call assert_equal(0, max({}))
+  call assert_equal(2, max({'a':1, 'b':2}))
+
+  call assert_fails('call max(1)', 'E712:')
+  " call assert_fails('call max(v:none)', 'E712:')
+endfunc
+
+func Test_min()
+  call assert_equal(0, min([]))
+  call assert_equal(2, min([2]))
+  call assert_equal(1, min([1, 2]))
+  call assert_equal(0, min([1, 2, v:null]))
+
+  call assert_equal(0, min({}))
+  call assert_equal(1, min({'a':1, 'b':2}))
+
+  call assert_fails('call min(1)', 'E712:')
+  " call assert_fails('call min(v:none)', 'E712:')
+endfunc
+
 func Test_str2nr()
   call assert_equal(0, str2nr(''))
   call assert_equal(1, str2nr('1'))
@@ -15,6 +111,77 @@ func Test_str2nr()
 
   call assert_equal(123456789, str2nr('123456789'))
   call assert_equal(-123456789, str2nr('-123456789'))
+
+  call assert_equal(5, str2nr('101', 2))
+  call assert_equal(5, str2nr('0b101', 2))
+  call assert_equal(5, str2nr('0B101', 2))
+  call assert_equal(-5, str2nr('-101', 2))
+  call assert_equal(-5, str2nr('-0b101', 2))
+  call assert_equal(-5, str2nr('-0B101', 2))
+
+  call assert_equal(65, str2nr('101', 8))
+  call assert_equal(65, str2nr('0101', 8))
+  call assert_equal(-65, str2nr('-101', 8))
+  call assert_equal(-65, str2nr('-0101', 8))
+
+  call assert_equal(11259375, str2nr('abcdef', 16))
+  call assert_equal(11259375, str2nr('ABCDEF', 16))
+  call assert_equal(-11259375, str2nr('-ABCDEF', 16))
+  call assert_equal(11259375, str2nr('0xabcdef', 16))
+  call assert_equal(11259375, str2nr('0Xabcdef', 16))
+  call assert_equal(11259375, str2nr('0XABCDEF', 16))
+  call assert_equal(-11259375, str2nr('-0xABCDEF', 16))
+
+  call assert_equal(0, str2nr('0x10'))
+  call assert_equal(0, str2nr('0b10'))
+  call assert_equal(1, str2nr('12', 2))
+  call assert_equal(1, str2nr('18', 8))
+  call assert_equal(1, str2nr('1g', 16))
+
+  call assert_equal(0, str2nr(v:null))
+  " call assert_equal(0, str2nr(v:none))
+
+  call assert_fails('call str2nr([])', 'E730:')
+  call assert_fails('call str2nr({->2})', 'E729:')
+  call assert_fails('call str2nr(1.2)', 'E806:')
+  call assert_fails('call str2nr(10, [])', 'E474:')
+endfunc
+
+func Test_strftime()
+  if !exists('*strftime')
+    return
+  endif
+  " Format of strftime() depends on system. We assume
+  " that basic formats tested here are available and
+  " identical on all systems which support strftime().
+  "
+  " The 2nd parameter of strftime() is a local time, so the output day
+  " of strftime() can be 17 or 18, depending on timezone.
+  call assert_match('^2017-01-1[78]$', strftime('%Y-%m-%d', 1484695512))
+  "
+  call assert_match('^\d\d\d\d-\(0\d\|1[012]\)-\([012]\d\|3[01]\) \([01]\d\|2[0-3]\):[0-5]\d:\([0-5]\d\|60\)$', strftime('%Y-%m-%d %H:%M:%S'))
+
+  call assert_fails('call strftime([])', 'E730:')
+  call assert_fails('call strftime("%Y", [])', 'E745:')
+endfunc
+
+func Test_simplify()
+  call assert_equal('',            simplify(''))
+  call assert_equal('/',           simplify('/'))
+  call assert_equal('/',           simplify('/.'))
+  call assert_equal('/',           simplify('/..'))
+  call assert_equal('/...',        simplify('/...'))
+  call assert_equal('./dir/file',  simplify('./dir/file'))
+  call assert_equal('./dir/file',  simplify('.///dir//file'))
+  call assert_equal('./dir/file',  simplify('./dir/./file'))
+  call assert_equal('./file',      simplify('./dir/../file'))
+  call assert_equal('../dir/file', simplify('dir/../../dir/file'))
+  call assert_equal('./file',      simplify('dir/.././file'))
+
+  call assert_fails('call simplify({->0})', 'E729:')
+  call assert_fails('call simplify([])', 'E730:')
+  call assert_fails('call simplify({})', 'E731:')
+  call assert_fails('call simplify(1.2)', 'E806:')
 endfunc
 
 func Test_setbufvar_options()
@@ -48,6 +215,19 @@ func Test_setbufvar_options()
   bwipe!
 endfunc
 
+func Test_strpart()
+  call assert_equal('de', strpart('abcdefg', 3, 2))
+  call assert_equal('ab', strpart('abcdefg', -2, 4))
+  call assert_equal('abcdefg', strpart('abcdefg', -2))
+  call assert_equal('fg', strpart('abcdefg', 5, 4))
+  call assert_equal('defg', strpart('abcdefg', 3))
+
+  if has('multi_byte')
+    call assert_equal('lép', strpart('éléphant', 2, 4))
+    call assert_equal('léphant', strpart('éléphant', 2))
+  endif
+endfunc
+
 func Test_tolower()
   call assert_equal("", tolower(""))
 
@@ -188,7 +368,7 @@ func Test_toupper()
   call assert_equal("YÝŶŸẎỲỶỸ", toupper("YÝŶŸẎỲỶỸ"))
   call assert_equal("ZŹŻŽƵẐẔ", toupper("ZŹŻŽƵẐẔ"))
 
-  call assert_equal("ⱥ ⱦ", tolower("Ⱥ Ⱦ"))
+  call assert_equal("Ⱥ Ⱦ", toupper("ⱥ ⱦ"))
 endfunc
 
 " Tests for the mode() function
@@ -353,3 +533,229 @@ func Test_getbufvar()
 
   set fileformats&
 endfunc
+
+func Test_last_buffer_nr()
+  call assert_equal(bufnr('$'), last_buffer_nr())
+endfunc
+
+func Test_stridx()
+  call assert_equal(-1, stridx('', 'l'))
+  call assert_equal(0,  stridx('', ''))
+  call assert_equal(0,  stridx('hello', ''))
+  call assert_equal(-1, stridx('hello', 'L'))
+  call assert_equal(2,  stridx('hello', 'l', -1))
+  call assert_equal(2,  stridx('hello', 'l', 0))
+  call assert_equal(2,  stridx('hello', 'l', 1))
+  call assert_equal(3,  stridx('hello', 'l', 3))
+  call assert_equal(-1, stridx('hello', 'l', 4))
+  call assert_equal(-1, stridx('hello', 'l', 10))
+  call assert_equal(2,  stridx('hello', 'll'))
+  call assert_equal(-1, stridx('hello', 'hello world'))
+endfunc
+
+func Test_strridx()
+  call assert_equal(-1, strridx('', 'l'))
+  call assert_equal(0,  strridx('', ''))
+  call assert_equal(5,  strridx('hello', ''))
+  call assert_equal(-1, strridx('hello', 'L'))
+  call assert_equal(3,  strridx('hello', 'l'))
+  call assert_equal(3,  strridx('hello', 'l', 10))
+  call assert_equal(3,  strridx('hello', 'l', 3))
+  call assert_equal(2,  strridx('hello', 'l', 2))
+  call assert_equal(-1, strridx('hello', 'l', 1))
+  call assert_equal(-1, strridx('hello', 'l', 0))
+  call assert_equal(-1, strridx('hello', 'l', -1))
+  call assert_equal(2,  strridx('hello', 'll'))
+  call assert_equal(-1, strridx('hello', 'hello world'))
+endfunc
+
+func Test_matchend()
+  call assert_equal(7,  matchend('testing', 'ing'))
+  call assert_equal(7,  matchend('testing', 'ing', 2))
+  call assert_equal(-1, matchend('testing', 'ing', 5))
+endfunc
+
+func Test_nextnonblank_prevnonblank()
+  new
+insert
+This
+
+
+is
+
+a
+Test
+.
+  call assert_equal(0, nextnonblank(-1))
+  call assert_equal(0, nextnonblank(0))
+  call assert_equal(1, nextnonblank(1))
+  call assert_equal(4, nextnonblank(2))
+  call assert_equal(4, nextnonblank(3))
+  call assert_equal(4, nextnonblank(4))
+  call assert_equal(6, nextnonblank(5))
+  call assert_equal(6, nextnonblank(6))
+  call assert_equal(7, nextnonblank(7))
+  call assert_equal(0, nextnonblank(8))
+
+  call assert_equal(0, prevnonblank(-1))
+  call assert_equal(0, prevnonblank(0))
+  call assert_equal(1, prevnonblank(1))
+  call assert_equal(1, prevnonblank(2))
+  call assert_equal(1, prevnonblank(3))
+  call assert_equal(4, prevnonblank(4))
+  call assert_equal(4, prevnonblank(5))
+  call assert_equal(6, prevnonblank(6))
+  call assert_equal(7, prevnonblank(7))
+  call assert_equal(0, prevnonblank(8))
+  bw!
+endfunc
+
+func Test_byte2line_line2byte()
+  new
+  call setline(1, ['a', 'bc', 'd'])
+
+  set fileformat=unix
+  call assert_equal([-1, -1, 1, 1, 2, 2, 2, 3, 3, -1],
+  \                 map(range(-1, 8), 'byte2line(v:val)'))
+  call assert_equal([-1, -1, 1, 3, 6, 8, -1],
+  \                 map(range(-1, 5), 'line2byte(v:val)'))
+
+  set fileformat=mac
+  call assert_equal([-1, -1, 1, 1, 2, 2, 2, 3, 3, -1],
+  \                 map(range(-1, 8), 'byte2line(v:val)'))
+  call assert_equal([-1, -1, 1, 3, 6, 8, -1],
+  \                 map(range(-1, 5), 'line2byte(v:val)'))
+
+  set fileformat=dos
+  call assert_equal([-1, -1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, -1],
+  \                 map(range(-1, 11), 'byte2line(v:val)'))
+  call assert_equal([-1, -1, 1, 4, 8, 11, -1],
+  \                 map(range(-1, 5), 'line2byte(v:val)'))
+
+  set fileformat&
+  bw!
+endfunc
+
+func Test_count()
+  let l = ['a', 'a', 'A', 'b']
+  call assert_equal(2, count(l, 'a'))
+  call assert_equal(1, count(l, 'A'))
+  call assert_equal(1, count(l, 'b'))
+  call assert_equal(0, count(l, 'B'))
+
+  call assert_equal(2, count(l, 'a', 0))
+  call assert_equal(1, count(l, 'A', 0))
+  call assert_equal(1, count(l, 'b', 0))
+  call assert_equal(0, count(l, 'B', 0))
+
+  call assert_equal(3, count(l, 'a', 1))
+  call assert_equal(3, count(l, 'A', 1))
+  call assert_equal(1, count(l, 'b', 1))
+  call assert_equal(1, count(l, 'B', 1))
+  call assert_equal(0, count(l, 'c', 1))
+
+  call assert_equal(1, count(l, 'a', 0, 1))
+  call assert_equal(2, count(l, 'a', 1, 1))
+  call assert_fails('call count(l, "a", 0, 10)', 'E684:')
+
+  let d = {1: 'a', 2: 'a', 3: 'A', 4: 'b'}
+  call assert_equal(2, count(d, 'a'))
+  call assert_equal(1, count(d, 'A'))
+  call assert_equal(1, count(d, 'b'))
+  call assert_equal(0, count(d, 'B'))
+
+  call assert_equal(2, count(d, 'a', 0))
+  call assert_equal(1, count(d, 'A', 0))
+  call assert_equal(1, count(d, 'b', 0))
+  call assert_equal(0, count(d, 'B', 0))
+
+  call assert_equal(3, count(d, 'a', 1))
+  call assert_equal(3, count(d, 'A', 1))
+  call assert_equal(1, count(d, 'b', 1))
+  call assert_equal(1, count(d, 'B', 1))
+  call assert_equal(0, count(d, 'c', 1))
+
+  call assert_fails('call count(d, "a", 0, 1)', 'E474:')
+  call assert_fails('call count("a", "a")', 'E712:')
+endfunc
+
+func Test_changenr()
+  new Xchangenr
+  call assert_equal(0, changenr())
+  norm ifoo
+  call assert_equal(1, changenr())
+  set undolevels=10
+  norm Sbar
+  call assert_equal(2, changenr())
+  undo
+  call assert_equal(1, changenr())
+  redo
+  call assert_equal(2, changenr())
+  bw!
+  set undolevels&
+endfunc
+
+func Test_filewritable()
+  new Xfilewritable
+  write!
+  call assert_equal(1, filewritable('Xfilewritable'))
+
+  call assert_notequal(0, setfperm('Xfilewritable', 'r--r-----'))
+  call assert_equal(0, filewritable('Xfilewritable'))
+
+  call assert_notequal(0, setfperm('Xfilewritable', 'rw-r-----'))
+  call assert_equal(1, filewritable('Xfilewritable'))
+
+  call assert_equal(0, filewritable('doesnotexist'))
+
+  call delete('Xfilewritable')
+  bw!
+endfunc
+
+func Test_hostname()
+  let hostname_vim = hostname()
+  if has('unix')
+    let hostname_system = systemlist('uname -n')[0]
+    call assert_equal(hostname_vim, hostname_system)
+  endif
+endfunc
+
+func Test_getpid()
+  " getpid() always returns the same value within a vim instance.
+  call assert_equal(getpid(), getpid())
+  if has('unix')
+    call assert_equal(systemlist('echo $PPID')[0], string(getpid()))
+  endif
+endfunc
+
+func Test_hlexists()
+  call assert_equal(0, hlexists('does_not_exist'))
+  " call assert_equal(0, hlexists('Number'))
+  call assert_equal(0, highlight_exists('does_not_exist'))
+  " call assert_equal(0, highlight_exists('Number'))
+  syntax on
+  call assert_equal(0, hlexists('does_not_exist'))
+  " call assert_equal(1, hlexists('Number'))
+  call assert_equal(0, highlight_exists('does_not_exist'))
+  " call assert_equal(1, highlight_exists('Number'))
+  syntax off
+endfunc
+
+func Test_col()
+  new
+  call setline(1, 'abcdef')
+  norm gg4|mx6|mY2|
+  call assert_equal(2, col('.'))
+  call assert_equal(7, col('$'))
+  call assert_equal(4, col("'x"))
+  call assert_equal(6, col("'Y"))
+  call assert_equal(2, col([1, 2]))
+  call assert_equal(7, col([1, '$']))
+
+  call assert_equal(0, col(''))
+  call assert_equal(0, col('x'))
+  call assert_equal(0, col([2, '$']))
+  call assert_equal(0, col([1, 100]))
+  call assert_equal(0, col([1]))
+  bw!
+endfunc