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6d8c8b18d5
Problem: The magic globals `it`, `describe`, etc., are more trouble than they are worth. - Hooking into `after_each` requires `getfenv()` hacks. - They confuse luals/emmylua, because the top-level `.luarc.json` isn't merged with `test/.luarc.json` (apparently a luals limitation?) - They totally defeat discoverability because the user just has to "know" about the various magic symbols. So they harm DX, which means they serve no purpose at all. Solution: - Expose the test API from `testutil`, so tests can call `t.it()`, `t.describe()`, etc., in the conventional way. - Drop `getfenv()` hacks. - Drop the `setfenv()` injection in `load_chunk`. - Drop `test/_meta.lua`.
52 lines
1.8 KiB
Lua
52 lines
1.8 KiB
Lua
local t = require('test.unit.testutil')
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local describe = t.describe
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local itp = t.gen_itp(t.it)
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local cimport = t.cimport
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local cstr = t.cstr
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local eq = t.eq
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local ffi = t.ffi
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local to_cstr = t.to_cstr
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local cimp = cimport('stdlib.h', './src/nvim/memory.h')
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describe('xstrlcat()', function()
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local function test_xstrlcat(dst, src, dsize)
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assert.is_true(dsize >= 1 + string.len(dst)) -- sanity check for tests
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local dst_cstr = cstr(dsize, dst)
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local src_cstr = to_cstr(src)
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eq(string.len(dst .. src), cimp.xstrlcat(dst_cstr, src_cstr, dsize))
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return ffi.string(dst_cstr)
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end
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local function test_xstrlcat_overlap(dst, src_idx, dsize)
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assert.is_true(dsize >= 1 + string.len(dst)) -- sanity check for tests
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local dst_cstr = cstr(dsize, dst)
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local src_cstr = dst_cstr + src_idx -- pointer into `dst` (overlaps)
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eq(string.len(dst) + string.len(dst) - src_idx, cimp.xstrlcat(dst_cstr, src_cstr, dsize))
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return ffi.string(dst_cstr)
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end
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itp('concatenates strings', function()
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eq('ab', test_xstrlcat('a', 'b', 3))
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eq('ab', test_xstrlcat('a', 'b', 4096))
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eq('ABCיהZdefgiיהZ', test_xstrlcat('ABCיהZ', 'defgiיהZ', 4096))
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eq('b', test_xstrlcat('', 'b', 4096))
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eq('a', test_xstrlcat('a', '', 4096))
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end)
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itp('concatenates overlapping strings', function()
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eq('abcabc', test_xstrlcat_overlap('abc', 0, 7))
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eq('abca', test_xstrlcat_overlap('abc', 0, 5))
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eq('abcb', test_xstrlcat_overlap('abc', 1, 5))
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eq('abcc', test_xstrlcat_overlap('abc', 2, 10))
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eq('abcabc', test_xstrlcat_overlap('abc', 0, 2343))
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end)
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itp('truncates if `dsize` is too small', function()
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eq('a', test_xstrlcat('a', 'b', 2))
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eq('', test_xstrlcat('', 'b', 1))
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eq('ABCיהZd', test_xstrlcat('ABCיהZ', 'defgiיהZ', 10))
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end)
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end)
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