142 lines
4.8 KiB
VimL
142 lines
4.8 KiB
VimL
describe 'snippet parser'
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before
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function! Parse(snippet, ...)
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let [snip, stops] = snipmate#parse#snippet(a:snippet, (a:0 ? a:1 : 1))
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return (a:0 > 1 && a:2) ? [snip, stops] : snip
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endfunction
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let b:snipmate_visual = 'testvisual'
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end
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it 'parses numeric $id and ${id} vars as [id] lists'
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let expect = [[[1234567890]]]
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Expect Parse('$1234567890') == expect
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Expect Parse('${1234567890}') == expect
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end
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it 'disregards $ or ${ followed by a non-id'
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Expect Parse('$x1') == [['x1']]
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Expect Parse('${x}1') == [['x}1']]
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Expect Parse('$VISUA1') == [['VISUA1']]
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Expect Parse('${VISUA}1') == [['VISUA}1']]
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end
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it 'gathers references to each instance of each stop id'
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let [snip, b:stops] = Parse('x$1x${2:x$1x}x$1x${1/a/b}x$VISUALx', 1, 1)
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function! InstanceFound(list)
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return !empty(filter(copy(b:stops[a:list[0]].instances),
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\ 'v:val is a:list'))
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endfunction
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function! CheckList(list)
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for item in a:list
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if type(item) == type([])
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Expect InstanceFound(item) to_be_true
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call CheckList(item)
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endif
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unlet item " E732
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endfor
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endfunction
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call CheckList(snip[0])
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end
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it 'parses mirror substitutions ${n/pat/sub} as [n, {...}]'
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let expect = [[[1, { 'pat' : 'abc', 'sub' : 'def' }]]]
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Expect Parse('${1/abc/def}') == expect
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let expect[0][0][1].flags = ''
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Expect Parse('${1/abc/def/}') == expect
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let expect[0][0][1].flags = 'g'
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Expect Parse('${1/abc/def/g}') == expect
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end
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it 'reads patterns literally except for "\/"'
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Expect Parse('${1/\a\/b/\c\/d\}}') == [[[1, { 'pat' : '\a/b', 'sub' : '\c/d}' }]]]
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end
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it 'parses vars with placeholders as [id, placeholder] lists'
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Expect Parse('${1:abc}') == [[[1, 'abc']]]
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end
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it 'evaluates backtick expressions'
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Expect Parse('`fnamemodify("x.y", ":r")`') == [['x']]
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end
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it 'parses placeholders for vars and other specials'
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let text = 'a `fnamemodify("x.y", ":r")` ${2:(${3/a/b})}'
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let expect = ['a x ', [2, '(', [3, { 'pat' : 'a', 'sub' : 'b' }], ')']]
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Expect Parse(text) == [expect]
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Expect Parse(printf('${1:%s}', text)) == [[[1] + expect]]
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end
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it 'converts tabs according to &et, &sts, &sw, &ts'
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" &noet -> leave tabs alone
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setl noet
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Expect Parse("abc\tdef\n\t\tghi") == [["abc\tdef"], ["\t\tghi"]]
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" &et -> &sts or &sw
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setl et sts=2 sw=3
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Expect Parse("abc\tdef\n\t\tghi") == [["abc def"], [" ghi"]]
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setl et sts=0 sw=3
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Expect Parse("abc\tdef\n\t\tghi") == [["abc def"], [" ghi"]]
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setl et sts=-1 sw=3
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Expect Parse("abc\tdef\n\t\tghi") == [["abc def"], [" ghi"]]
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" See #227
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if exists('*shiftwidth')
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setl et sts=0 sw=0 ts=3
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Expect Parse("abc\tdef\n\t\tghi") == [["abc def"], [" ghi"]]
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endif
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end
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it 'parses backslashes as escaping the next character or joining lines'
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Expect Parse('x\x') == [['xx']]
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Expect Parse('x\\x') == [['x\x']]
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Expect Parse("x\\\nx") == [['xx']]
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Expect Parse('x\$1') == [['x$1']]
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Expect Parse('${1:\}}') == [[[1, '}']]]
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Expect Parse('`fnamemodify("\`.x", ":r")`') == [['`']]
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Expect Parse('\`x\`') == [['`x`']]
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end
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it 'splits text at newlines'
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Expect Parse("x\nx") == [['x'], ['x']]
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end
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it 'joins evaluated expressions to surrounding text on the same line'
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let g:foo = 'bar'
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Expect Parse("x`g:foo`x") == [['xbarx']]
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Expect Parse("x`g:foo`\nx") == [['xbar'], ['x']]
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Expect Parse("x\n`g:foo`x") == [['x'], ['barx']]
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end
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it 'expands $VISUAL placeholders with any indents'
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Expect Parse("x$VISUALx") == [['xtestvisualx']]
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let b:snipmate_visual = " foo\nbar\n baz"
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setl noet
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Expect Parse("\tx\n\t$VISUAL\nx") == [["\tx"], ["\t foo"], ["\tbar"],
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\ ["\t baz"], ["x"]]
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end
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it 'determines which var with an id is the stop'
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let [snip, stops] = Parse("$1$1$1", 0, 1)
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Expect snip == [[[1, "", stops[1]], [1, {}], [1, {}]]]
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let [snip, stops] = Parse("$1${1}$1", 0, 1)
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Expect snip == [[[1, "", stops[1]], [1, {}], [1, {}]]]
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let [snip, stops] = Parse("$1${1:}$1", 0, 1)
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Expect snip == [[[1, {}], [1, "", stops[1]], [1, {}]]]
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end
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it 'picks the first of many possible stops'
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let [snip, stops] = Parse("$1${1:foo}${1:bar}", 0, 1)
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Expect snip == [[[1, {}], [1, "foo", stops[1]], [1, {}]]]
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end
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it 'represents empty lines as an empty string'
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Expect Parse("foo\n\nbar") == [['foo'], [''], ['bar']]
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end
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end
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