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|
" Tests for the :let command.
func Test_let()
" Test to not autoload when assigning. It causes internal error.
set runtimepath+=./sautest
let Test104#numvar = function('tr')
call assert_equal("function('tr')", string(Test104#numvar))
let a = 1
let b = 2
let out = execute('let a b')
let s = "\na #1\nb #2"
call assert_equal(s, out)
let out = execute('let {0 == 1 ? "a" : "b"}')
let s = "\nb #2"
call assert_equal(s, out)
let out = execute('let {0 == 1 ? "a" : "b"} a')
let s = "\nb #2\na #1"
call assert_equal(s, out)
let out = execute('let a {0 == 1 ? "a" : "b"}')
let s = "\na #1\nb #2"
call assert_equal(s, out)
" Test for displaying a string variable
let s = 'vim'
let out = execute('let s')
let s = "\ns vim"
call assert_equal(s, out)
" Test for displaying a list variable
let l = [1, 2]
let out = execute('let l')
let s = "\nl [1, 2]"
call assert_equal(s, out)
" Test for displaying a dict variable
let d = {'k' : 'v'}
let out = execute('let d')
let s = "\nd {'k': 'v'}"
call assert_equal(s, out)
" Test for displaying a function reference variable
let F = function('min')
let out = execute('let F')
let s = "\nF *min()"
call assert_equal(s, out)
let x = 0
if 0 | let x = 1 | endif
call assert_equal(0, x)
" Display a list item using an out of range index
let l = [10]
call assert_fails('let l[1]', 'E684:')
" List special variable dictionaries
let g:Test_Global_Var = 5
call assert_match("\nTest_Global_Var #5", execute('let g:'))
unlet g:Test_Global_Var
let b:Test_Buf_Var = 8
call assert_match("\nb:Test_Buf_Var #8", execute('let b:'))
unlet b:Test_Buf_Var
let w:Test_Win_Var = 'foo'
call assert_equal("\nw:Test_Win_Var foo", execute('let w:'))
unlet w:Test_Win_Var
let t:Test_Tab_Var = 'bar'
call assert_equal("\nt:Test_Tab_Var bar", execute('let t:'))
unlet t:Test_Tab_Var
let s:Test_Script_Var = [7]
call assert_match("\ns:Test_Script_Var \\[7]", execute('let s:'))
unlet s:Test_Script_Var
let l:Test_Local_Var = {'k' : 5}
call assert_match("\nl:Test_Local_Var {'k': 5}", execute('let l:'))
call assert_match("v:errors []", execute('let v:'))
" Test for assigning multiple list items
let l = [1, 2, 3]
let [l[0], l[1]] = [10, 20]
call assert_equal([10, 20, 3], l)
" Test for errors in conditional expression
call assert_fails('let val = [] ? 1 : 2', 'E745:')
call assert_fails('let val = 1 ? 5+ : 6', 'E121:')
call assert_fails('let val = 1 ? 0 : 5+', 'E15:')
call assert_false(exists('val'))
" Test for errors in logical operators
let @a = 'if [] || 0 | let val = 2 | endif'
call assert_fails('exe @a', 'E745:')
call assert_fails('call feedkeys(":let val = 0 || []\<cr>", "xt")', 'E745:')
call assert_fails('exe "let val = [] && 5"', 'E745:')
call assert_fails('exe "let val = 6 && []"', 'E745:')
endfunc
func s:set_arg1(a) abort
let a:a = 1
endfunction
func s:set_arg2(a) abort
let a:b = 1
endfunction
func s:set_arg3(a) abort
let b = a:
let b['a'] = 1
endfunction
func s:set_arg4(a) abort
let b = a:
let b['a'] = 1
endfunction
func s:set_arg5(a) abort
let b = a:
let b['a'][0] = 1
endfunction
func s:set_arg6(a) abort
let a:a[0] = 1
endfunction
func s:set_arg7(a) abort
call extend(a:, {'a': 1})
endfunction
func s:set_arg8(a) abort
call extend(a:, {'b': 1})
endfunction
func s:set_arg9(a) abort
let a:['b'] = 1
endfunction
func s:set_arg10(a) abort
let b = a:
call extend(b, {'a': 1})
endfunction
func s:set_arg11(a) abort
let b = a:
call extend(b, {'b': 1})
endfunction
func s:set_arg12(a) abort
let b = a:
let b['b'] = 1
endfunction
func Test_let_arg_fail()
call assert_fails('call s:set_arg1(1)', 'E46:')
call assert_fails('call s:set_arg2(1)', 'E461:')
call assert_fails('call s:set_arg3(1)', 'E46:')
call assert_fails('call s:set_arg4(1)', 'E46:')
call assert_fails('call s:set_arg5(1)', 'E46:')
call s:set_arg6([0])
call assert_fails('call s:set_arg7(1)', 'E742:')
call assert_fails('call s:set_arg8(1)', 'E742:')
call assert_fails('call s:set_arg9(1)', 'E461:')
call assert_fails('call s:set_arg10(1)', 'E742:')
call assert_fails('call s:set_arg11(1)', 'E742:')
call assert_fails('call s:set_arg12(1)', 'E461:')
endfunction
func s:set_varg1(...) abort
let a:000 = []
endfunction
func s:set_varg2(...) abort
let a:000[0] = 1
endfunction
func s:set_varg3(...) abort
let a:000 += [1]
endfunction
func s:set_varg4(...) abort
call add(a:000, 1)
endfunction
func s:set_varg5(...) abort
let a:000[0][0] = 1
endfunction
func s:set_varg6(...) abort
let b = a:000
let b[0] = 1
endfunction
func s:set_varg7(...) abort
let b = a:000
let b += [1]
endfunction
func s:set_varg8(...) abort
let b = a:000
call add(b, 1)
endfunction
func s:set_varg9(...) abort
let b = a:000
let b[0][0] = 1
endfunction
func Test_let_varg_fail()
call assert_fails('call s:set_varg1(1)', 'E46:')
call assert_fails('call s:set_varg2(1)', 'E742:')
call assert_fails('call s:set_varg3(1)', 'E46:')
call assert_fails('call s:set_varg4(1)', 'E742:')
call s:set_varg5([0])
call assert_fails('call s:set_varg6(1)', 'E742:')
call assert_fails('call s:set_varg7(1)', 'E742:')
call assert_fails('call s:set_varg8(1)', 'E742:')
call s:set_varg9([0])
endfunction
func Test_let_utf8_environment()
let $a = 'ĀĒĪŌŪあいうえお'
call assert_equal('ĀĒĪŌŪあいうえお', $a)
endfunc
func Test_let_no_type_checking()
let v = 1
let v = [1,2,3]
let v = {'a': 1, 'b': 2}
let v = 3.4
let v = 'hello'
endfunc
func Test_let_termcap()
" Terminal code
let old_t_te = &t_te
let &t_te = "\<Esc>[yes;"
call assert_match('t_te.*^[[yes;', execute("set termcap"))
let &t_te = old_t_te
if exists("+t_k1")
" Key code
let old_t_k1 = &t_k1
let &t_k1 = "that"
call assert_match('t_k1.*that', execute("set termcap"))
let &t_k1 = old_t_k1
endif
call assert_fails('let x = &t_xx', 'E113:')
let &t_xx = "yes"
call assert_equal("yes", &t_xx)
let &t_xx = ""
call assert_fails('let x = &t_xx', 'E113:')
endfunc
func Test_let_option_error()
let _w = &tw
let &tw = 80
call assert_fails('let &tw .= 1', 'E734:')
call assert_equal(80, &tw)
let &tw = _w
let _w = &fillchars
let &fillchars = "vert:|"
call assert_fails('let &fillchars += "diff:-"', 'E734:')
call assert_equal("vert:|", &fillchars)
let &fillchars = _w
endfunc
" Errors with the :let statement
func Test_let_errors()
let s = 'abcd'
call assert_fails('let s[1] = 5', 'E689:')
let l = [1, 2, 3]
call assert_fails('let l[:] = 5', 'E709:')
call assert_fails('let x:lnum=5', ['E121:', 'E488:'])
call assert_fails('let v:=5', 'E461:')
call assert_fails('let [a]', 'E474:')
call assert_fails('let [a, b] = [', 'E697:')
call assert_fails('let [a, b] = [10, 20', 'E696:')
call assert_fails('let [a, b] = 10', 'E714:')
call assert_fails('let [a, , b] = [10, 20]', 'E475:')
call assert_fails('let [a, b&] = [10, 20]', 'E475:')
call assert_fails('let $ = 10', 'E475:')
call assert_fails('let $FOO[1] = "abc"', 'E18:')
call assert_fails('let &buftype[1] = "nofile"', 'E18:')
let s = "var"
let var = 1
call assert_fails('let var += [1,2]', 'E734:')
call assert_fails('let {s}.1 = 2', 'E18:')
call assert_fails('let a[1] = 5', 'E121:')
let l = [[1,2]]
call assert_fails('let l[:][0] = [5]', 'E708:')
let d = {'k' : 4}
call assert_fails('let d.# = 5', 'E488:')
call assert_fails('let d.m += 5', 'E734:')
call assert_fails('let m = d[{]', 'E15:')
let l = [1, 2]
call assert_fails('let l[2] = 0', 'E684:')
call assert_fails('let l[0:1] = [1, 2, 3]', 'E710:')
call assert_fails('let l[-2:-3] = [3, 4]', 'E684:')
call assert_fails('let l[0:4] = [5, 6]', 'E711:')
call assert_fails('let l -= 2', 'E734:')
call assert_fails('let l += 2', 'E734:')
call assert_fails('let g:["a;b"] = 10', 'E461:')
call assert_fails('let g:.min = function("max")', 'E704:')
if has('channel')
let ch = test_null_channel()
call assert_fails('let ch += 1', 'E734:')
endif
" This test works only when the language is English
if v:lang == "C" || v:lang =~ '^[Ee]n'
call assert_fails('let [a ; b;] = [10, 20]',
\ 'Double ; in list of variables')
endif
endfunc
func Test_let_heredoc_fails()
call assert_fails('let v =<< marker', 'E991:')
try
exe "let v =<< TEXT | abc | TEXT"
call assert_report('No exception thrown')
catch /E488:/
catch
call assert_report("Caught exception: " .. v:exception)
endtry
let text =<< trim END
func WrongSyntax()
let v =<< that there
endfunc
END
call writefile(text, 'XheredocFail')
call assert_fails('source XheredocFail', 'E1145:')
call delete('XheredocFail')
let text =<< trim CodeEnd
func MissingEnd()
let v =<< END
endfunc
CodeEnd
call writefile(text, 'XheredocWrong')
call assert_fails('source XheredocWrong', 'E1145:')
call delete('XheredocWrong')
let text =<< trim TEXTend
let v =<< " comment
TEXTend
call writefile(text, 'XheredocNoMarker')
call assert_fails('source XheredocNoMarker', 'E172:')
call delete('XheredocNoMarker')
let text =<< trim TEXTend
let v =<< text
TEXTend
call writefile(text, 'XheredocBadMarker')
call assert_fails('source XheredocBadMarker', 'E221:')
call delete('XheredocBadMarker')
call writefile(['let v =<< TEXT', 'abc'], 'XheredocMissingMarker')
call assert_fails('source XheredocMissingMarker', 'E990:')
call delete('XheredocMissingMarker')
endfunc
func Test_let_heredoc_trim_no_indent_marker()
let text =<< trim END
Text
with
indent
END
call assert_equal(['Text', 'with', 'indent'], text)
endfunc
" Test for the setting a variable using the heredoc syntax
func Test_let_heredoc()
let var1 =<< END
Some sample text
Text with indent
!@#$%^&*()-+_={}|[]\~`:";'<>?,./
END
call assert_equal(["Some sample text", "\tText with indent", " !@#$%^&*()-+_={}|[]\\~`:\";'<>?,./"], var1)
let var2 =<< XXX
Editor
XXX
call assert_equal(['Editor'], var2)
let var3 =<<END
END
call assert_equal([], var3)
let var3 =<<END
vim
end
END
END
END
call assert_equal(['vim', '', 'end', ' END', 'END '], var3)
let var1 =<< trim END
Line1
Line2
Line3
END
END
call assert_equal(['Line1', ' Line2', "\tLine3", ' END'], var1)
let var1 =<< trim !!!
Line1
line2
Line3
!!!
!!!
call assert_equal(['Line1', ' line2', "\tLine3", '!!!',], var1)
let var1 =<< trim XX
Line1
XX
call assert_equal(['Line1'], var1)
" ignore "endfunc"
let var1 =<< END
something
endfunc
END
call assert_equal(['something', 'endfunc'], var1)
" ignore "endfunc" with trim
let var1 =<< trim END
something
endfunc
END
call assert_equal(['something', 'endfunc'], var1)
" not concatenate lines
let var1 =<< END
some
\thing
\ else
END
call assert_equal(['some', ' \thing', ' \ else'], var1)
" ignore "python << xx"
let var1 =<<END
something
python << xx
END
call assert_equal(['something', 'python << xx'], var1)
" ignore "python << xx" with trim
let var1 =<< trim END
something
python << xx
END
call assert_equal(['something', 'python << xx'], var1)
" ignore "append"
let var1 =<< E
something
app
E
call assert_equal(['something', 'app'], var1)
" ignore "append" with trim
let var1 =<< trim END
something
app
END
call assert_equal(['something', 'app'], var1)
let check = []
if 0
let check =<< trim END
from heredoc
END
endif
call assert_equal([], check)
" unpack assignment
let [a, b, c] =<< END
x
\y
z
END
call assert_equal([' x', ' \y', ' z'], [a, b, c])
endfunc
" vim: shiftwidth=2 sts=2 expandtab
|