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60 lines
1.7 KiB
Lua
60 lines
1.7 KiB
Lua
local t = require('test.unit.testutil')
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local itp = t.gen_itp(it)
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local ffi = t.ffi
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local eq = t.eq
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local to_cstr = t.to_cstr
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local cimp = t.cimport('./src/nvim/message.h', './src/nvim/memory.h', './src/nvim/strings.h')
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describe('trunc_string', function()
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local buflen = 40
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local function test_inplace(s, expected, room)
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room = room and room or 20
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local buf = cimp.xmalloc(ffi.sizeof('char') * buflen)
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ffi.C.strcpy(buf, s)
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cimp.trunc_string(buf, buf, room, buflen)
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eq(expected, ffi.string(buf))
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cimp.xfree(buf)
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end
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local function test_copy(s, expected, room)
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room = room and room or 20
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local buf = cimp.xmalloc(ffi.sizeof('char') * buflen)
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local str = cimp.xstrdup(to_cstr(s))
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cimp.trunc_string(str, buf, room, buflen)
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eq(expected, ffi.string(buf))
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cimp.xfree(buf)
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cimp.xfree(str)
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end
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local permutations = {
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{ ['desc'] = 'in-place', ['func'] = test_inplace },
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{ ['desc'] = 'by copy', ['func'] = test_copy },
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}
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for _, q in ipairs(permutations) do
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describe('populates buf ' .. q.desc, function()
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itp('with a small string', function()
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q.func('text', 'text')
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end)
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itp('with a medium string', function()
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q.func('a short text', 'a short text')
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end)
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itp('with a string of length == 1/2 room', function()
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q.func('a text that fits', 'a text that fits', 34)
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end)
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itp('with a string exactly the truncate size', function()
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q.func('a text tha just fits', 'a text tha just fits')
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end)
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itp('with a string that must be truncated', function()
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q.func('a text that nott fits', 'a text t...nott fits')
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end)
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end)
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end
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end)
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