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-rw-r--r--src/testdir/test_true_false.vim154
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+" Test behavior of boolean-like values.
+
+source check.vim
+
+" Test what is explained at ":help TRUE" and ":help FALSE".
+func Test_if()
+ if v:false
+ call assert_true(false, 'v:false is false')
+ endif
+ if 0
+ call assert_true(false, 'zero is false')
+ endif
+ if "0"
+ call assert_true(false, 'zero string is false')
+ endif
+ if "foo"
+ call assert_true(false, 'foo is false')
+ endif
+ if " "
+ call assert_true(false, 'space is false')
+ endif
+ if empty("foo")
+ call assert_true(false, 'foo is not empty')
+ endif
+
+ if v:true
+ else
+ call assert_true(false, 'v:true is true')
+ endif
+ if 1
+ else
+ call assert_true(false, 'one is true')
+ endif
+ if "1"
+ else
+ call assert_true(false, 'one string is true')
+ endif
+ if "1foo"
+ else
+ call assert_true(false, 'one in string is true')
+ endif
+
+ call assert_fails('if [1]', 'E745:')
+ call assert_fails('if {1: 1}', 'E728:')
+ call assert_fails('if function("string")', 'E703:')
+ call assert_fails('if 1.3")', 'E805:')
+endfunc
+
+function Try_arg_true_false(expr, false_val, true_val)
+ for v in ['v:false', '0', '"0"', '"foo"', '" "']
+ let r = eval(substitute(a:expr, '%v%', v, ''))
+ call assert_equal(a:false_val, r, 'result for ' . v . ' is not ' . string(a:false_val) . ' but ' . string(r))
+ endfor
+ for v in ['v:true', '1', '"1"', '"1foo"']
+ let r = eval(substitute(a:expr, '%v%', v, ''))
+ call assert_equal(a:true_val, r, 'result for ' . v . ' is not ' . string(a:true_val) . ' but ' . string(r))
+ endfor
+endfunc
+
+" Test using TRUE or FALSE values for an argument.
+func Test_true_false_arg()
+ call Try_arg_true_false('count(["a", "A"], "a", %v%)', 1, 2)
+
+ set wildignore=*.swp
+ call Try_arg_true_false('expand("foo.swp", %v%)', "", "foo.swp")
+ call Try_arg_true_false('expand("foo.vim", 0, %v%)', "foo.vim", ["foo.vim"])
+
+ call setreg('a', ['x', 'y'])
+ call Try_arg_true_false('getreg("a", 1, %v%)', "x\ny\n", ['x', 'y'])
+
+ set wildignore=*.vim
+ call Try_arg_true_false('glob("runtest.vim", %v%)', "", "runtest.vim")
+ set wildignore=*.swp
+ call Try_arg_true_false('glob("runtest.vim", 0, %v%)', "runtest.vim", ["runtest.vim"])
+ if has('unix')
+ silent !ln -s doesntexit Xlink
+ call Try_arg_true_false('glob("Xlink", 0, 0, %v%)', "", "Xlink")
+ silent !rm Xlink
+ endif
+
+ set wildignore=*.vim
+ call Try_arg_true_false('globpath(".", "runtest.vim", %v%)', "", "./runtest.vim")
+ set wildignore=*.swp
+ call Try_arg_true_false('globpath(".", "runtest.vim", 0, %v%)', "./runtest.vim", ["./runtest.vim"])
+ if has('unix')
+ silent !ln -s doesntexit Xlink
+ call Try_arg_true_false('globpath(".", "Xlink", 0, 0, %v%)', "", "./Xlink")
+ silent !rm Xlink
+ endif
+
+ abbr asdf asdff
+ call Try_arg_true_false('hasmapto("asdff", "i", %v%)', 0, 1)
+
+ call Try_arg_true_false('index(["a", "A"], "A", 0, %v%)', 1, 0)
+
+ function FilterMapArg(d)
+ if type(a:d) == type({})
+ return filter(a:d, 'v:key == "rhs"')
+ endif
+ return a:d
+ endfunction
+ call Try_arg_true_false('maparg("asdf", "i", %v%)', "", "asdff")
+ call Try_arg_true_false('FilterMapArg(maparg("asdf", "i", 1, %v%))', "asdff", {'rhs': 'asdff'})
+
+ call Try_arg_true_false('"asdf"->hasmapto("i", %v%)', 0, 1)
+
+ new colored
+ call setline(1, '<here>')
+ syn match brackets "<.*>"
+ syn match here "here" transparent
+ let brackets_id = synID(1, 1, 0)
+ let here_id = synID(1, 3, 0)
+ call Try_arg_true_false('synID(1, 3, %v%)', here_id, brackets_id)
+ bwipe!
+endfunc
+
+function Try_arg_non_zero(expr, false_val, true_val)
+ for v in ['v:false', '0', '[1]', '{2:3}', '3.4']
+ let r = eval(substitute(a:expr, '%v%', v, ''))
+ call assert_equal(a:false_val, r, 'result for ' . v . ' is not ' . a:false_val . ' but ' . r)
+ endfor
+ for v in ['v:true', '1', '" "', '"0"']
+ let r = eval(substitute(a:expr, '%v%', v, ''))
+ call assert_equal(a:true_val, r, 'result for ' . v . ' is not ' . a:true_val . ' but ' . r)
+ endfor
+endfunc
+
+
+" Test using non-zero-arg for an argument.
+func Test_non_zero_arg()
+ call test_settime(93784)
+ call Try_arg_non_zero("mode(%v%)", 'x', 'x!')
+ call test_settime(0)
+
+ call Try_arg_non_zero("shellescape('foo%', %v%)", "'foo%'", "'foo\\%'")
+
+ " visualmode() needs to be called twice to check
+ for v in [v:false, 0, [1], {2:3}, 3.4]
+ normal vv
+ let r = visualmode(v)
+ call assert_equal('v', r, 'result for ' . string(v) . ' is not "v" but ' . r)
+ let r = visualmode(v)
+ call assert_equal('v', r, 'result for ' . string(v) . ' is not "v" but ' . r)
+ endfor
+ for v in [v:true, 1, " ", "0"]
+ normal vv
+ let r = visualmode(v)
+ call assert_equal('v', r, 'result for ' . v . ' is not "v" but ' . r)
+ let r = visualmode(v)
+ call assert_equal('', r, 'result for ' . v . ' is not "" but ' . r)
+ endfor
+endfunc
+
+" vim: shiftwidth=2 sts=2 expandtab