mirror of
https://github.com/neovim/neovim.git
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12b062b2c8
Used
sed -r -i -e '/ helpers =/ s/$/\nlocal itp = helpers.gen_itp(it)/; s/^(\s*)it\(/\1itp(/' test/unit/**/*_spec.lua
to alter all tests. Locally they all run fine now.
Reasoning:
1. General: state from one test should not affect other tests.
2. Local: travis build is failing with something which may be an output of
garbage collector. This should prevent state of the garbage collector from
interferring as well.
352 lines
8.8 KiB
Lua
352 lines
8.8 KiB
Lua
local helpers = require("test.unit.helpers")
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local itp = helpers.gen_itp(it)
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local ffi = helpers.ffi
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local eq = helpers.eq
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local cstr = helpers.cstr
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local to_cstr = helpers.to_cstr
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local rbuffer = helpers.cimport("./test/unit/fixtures/rbuffer.h")
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describe('rbuffer functions', function()
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local capacity = 16
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local rbuf
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local function inspect()
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return ffi.string(rbuf.start_ptr, capacity)
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end
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local function write(str)
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local buf = to_cstr(str)
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return rbuffer.rbuffer_write(rbuf, buf, #str)
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end
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local function read(len)
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local buf = cstr(len)
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len = rbuffer.rbuffer_read(rbuf, buf, len)
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return ffi.string(buf, len)
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end
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local function get(idx)
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return ffi.string(rbuffer.rbuffer_get(rbuf, idx), 1)
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end
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before_each(function()
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rbuf = ffi.gc(rbuffer.rbuffer_new(capacity), rbuffer.rbuffer_free)
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-- fill the internal buffer with the character '0' to simplify inspecting
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ffi.C.memset(rbuf.start_ptr, string.byte('0'), capacity)
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end)
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describe('RBUFFER_UNTIL_FULL', function()
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local chunks
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local function collect_write_chunks()
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rbuffer.ut_rbuffer_each_write_chunk(rbuf, function(wptr, wcnt)
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table.insert(chunks, ffi.string(wptr, wcnt))
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end)
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end
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before_each(function()
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chunks = {}
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end)
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describe('with empty buffer in one contiguous chunk', function()
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itp('is called once with the empty chunk', function()
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collect_write_chunks()
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eq({'0000000000000000'}, chunks)
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end)
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end)
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describe('with partially empty buffer in one contiguous chunk', function()
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before_each(function()
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write('string')
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end)
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itp('is called once with the empty chunk', function()
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collect_write_chunks()
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eq({'0000000000'}, chunks)
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end)
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end)
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describe('with filled buffer in one contiguous chunk', function()
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before_each(function()
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write('abcdefghijklmnopq')
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end)
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itp('is not called', function()
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collect_write_chunks()
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eq({}, chunks)
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end)
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end)
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describe('with buffer partially empty in two contiguous chunks', function()
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before_each(function()
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write('1234567890')
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read(8)
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end)
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itp('is called twice with each filled chunk', function()
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collect_write_chunks()
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eq({'000000', '12345678'}, chunks)
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end)
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end)
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describe('with buffer empty in two contiguous chunks', function()
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before_each(function()
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write('12345678')
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read(8)
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end)
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itp('is called twice with each filled chunk', function()
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collect_write_chunks()
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eq({'00000000', '12345678'}, chunks)
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end)
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end)
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describe('with buffer filled in two contiguous chunks', function()
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before_each(function()
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write('12345678')
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read(8)
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write('abcdefghijklmnopq')
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end)
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itp('is not called', function()
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collect_write_chunks()
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eq({}, chunks)
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end)
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end)
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end)
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describe('RBUFFER_UNTIL_EMPTY', function()
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local chunks
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local function collect_read_chunks()
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rbuffer.ut_rbuffer_each_read_chunk(rbuf, function(rptr, rcnt)
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table.insert(chunks, ffi.string(rptr, rcnt))
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end)
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end
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before_each(function()
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chunks = {}
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end)
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describe('with empty buffer', function()
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itp('is not called', function()
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collect_read_chunks()
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eq({}, chunks)
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end)
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end)
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describe('with partially filled buffer in one contiguous chunk', function()
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before_each(function()
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write('string')
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end)
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itp('is called once with the filled chunk', function()
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collect_read_chunks()
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eq({'string'}, chunks)
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end)
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end)
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describe('with filled buffer in one contiguous chunk', function()
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before_each(function()
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write('abcdefghijklmnopq')
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end)
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itp('is called once with the filled chunk', function()
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collect_read_chunks()
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eq({'abcdefghijklmnop'}, chunks)
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end)
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end)
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describe('with buffer partially filled in two contiguous chunks', function()
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before_each(function()
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write('1234567890')
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read(10)
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write('long string')
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end)
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itp('is called twice with each filled chunk', function()
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collect_read_chunks()
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eq({'long s', 'tring'}, chunks)
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end)
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end)
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describe('with buffer filled in two contiguous chunks', function()
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before_each(function()
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write('12345678')
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read(8)
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write('abcdefghijklmnopq')
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end)
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itp('is called twice with each filled chunk', function()
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collect_read_chunks()
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eq({'abcdefgh', 'ijklmnop'}, chunks)
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end)
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end)
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end)
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describe('RBUFFER_EACH', function()
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local chars
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local function collect_chars()
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rbuffer.ut_rbuffer_each(rbuf, function(c, i)
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table.insert(chars, {string.char(c), tonumber(i)})
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end)
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end
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before_each(function()
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chars = {}
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end)
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describe('with empty buffer', function()
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itp('is not called', function()
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collect_chars()
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eq({}, chars)
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end)
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end)
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describe('with buffer filled in two contiguous chunks', function()
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before_each(function()
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write('1234567890')
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read(10)
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write('long string')
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end)
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itp('collects each character and index', function()
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collect_chars()
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eq({{'l', 0}, {'o', 1}, {'n', 2}, {'g', 3}, {' ', 4}, {'s', 5},
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{'t', 6}, {'r', 7}, {'i', 8}, {'n', 9}, {'g', 10}}, chars)
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end)
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end)
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end)
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describe('RBUFFER_EACH_REVERSE', function()
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local chars
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local function collect_chars()
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rbuffer.ut_rbuffer_each_reverse(rbuf, function(c, i)
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table.insert(chars, {string.char(c), tonumber(i)})
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end)
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end
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before_each(function()
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chars = {}
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end)
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describe('with empty buffer', function()
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itp('is not called', function()
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collect_chars()
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eq({}, chars)
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end)
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end)
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describe('with buffer filled in two contiguous chunks', function()
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before_each(function()
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write('1234567890')
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read(10)
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write('long string')
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end)
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itp('collects each character and index', function()
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collect_chars()
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eq({{'g', 10}, {'n', 9}, {'i', 8}, {'r', 7}, {'t', 6}, {'s', 5},
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{' ', 4}, {'g', 3}, {'n', 2}, {'o', 1}, {'l', 0}}, chars)
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end)
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end)
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end)
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describe('rbuffer_cmp', function()
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local function cmp(str)
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local rv = rbuffer.rbuffer_cmp(rbuf, to_cstr(str), #str)
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if rv == 0 then
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return 0
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else
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return rv / math.abs(rv)
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end
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end
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describe('with buffer filled in two contiguous chunks', function()
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before_each(function()
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write('1234567890')
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read(10)
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write('long string')
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end)
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itp('compares the common longest sequence', function()
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eq(0, cmp('long string'))
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eq(0, cmp('long strin'))
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eq(-1, cmp('long striM'))
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eq(1, cmp('long strio'))
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eq(0, cmp('long'))
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eq(-1, cmp('lonG'))
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eq(1, cmp('lonh'))
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end)
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end)
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describe('with empty buffer', function()
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itp('returns 0 since no characters are compared', function()
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eq(0, cmp(''))
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end)
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end)
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end)
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describe('rbuffer_write', function()
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itp('fills the internal buffer and returns the write count', function()
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eq(12, write('short string'))
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eq('short string0000', inspect())
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end)
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itp('wont write beyond capacity', function()
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eq(16, write('very very long string'))
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eq('very very long s', inspect())
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end)
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end)
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describe('rbuffer_read', function()
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itp('reads what was previously written', function()
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write('to read')
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eq('to read', read(20))
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end)
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itp('reads nothing if the buffer is empty', function()
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eq('', read(20))
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write('empty')
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eq('empty', read(20))
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eq('', read(20))
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end)
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end)
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describe('rbuffer_get', function()
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itp('fetch the pointer at offset, wrapping if required', function()
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write('1234567890')
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read(10)
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write('long string')
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eq('l', get(0))
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eq('o', get(1))
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eq('n', get(2))
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eq('g', get(3))
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eq(' ', get(4))
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eq('s', get(5))
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eq('t', get(6))
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eq('r', get(7))
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eq('i', get(8))
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eq('n', get(9))
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eq('g', get(10))
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end)
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end)
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describe('wrapping behavior', function()
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itp('writing/reading wraps across the end of the internal buffer', function()
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write('1234567890')
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eq('1234', read(4))
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eq('5678', read(4))
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write('987654321')
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eq('3214567890987654', inspect())
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eq('90987654321', read(20))
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eq('', read(4))
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write('abcdefghijklmnopqrs')
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eq('nopabcdefghijklm', inspect())
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eq('abcdefghijklmnop', read(20))
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end)
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end)
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end)
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