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Diffstat (limited to 'test/unit/rbuffer_spec.lua')
-rw-r--r-- | test/unit/rbuffer_spec.lua | 340 |
1 files changed, 0 insertions, 340 deletions
diff --git a/test/unit/rbuffer_spec.lua b/test/unit/rbuffer_spec.lua deleted file mode 100644 index ad18ea2ddc..0000000000 --- a/test/unit/rbuffer_spec.lua +++ /dev/null @@ -1,340 +0,0 @@ -local t = require('test.unit.testutil') -local itp = t.gen_itp(it) - -local eq = t.eq -local ffi = t.ffi -local cstr = t.cstr -local to_cstr = t.to_cstr -local child_call_once = t.child_call_once - -local rbuffer = t.cimport('./test/unit/fixtures/rbuffer.h') - -describe('rbuffer functions', function() - local capacity = 16 - local rbuf - - local function inspect() - return ffi.string(rbuf.start_ptr, capacity) - end - - local function write(str) - local buf = to_cstr(str) - return rbuffer.rbuffer_write(rbuf, buf, #str) - end - - local function read(len) - local buf = cstr(len) - len = rbuffer.rbuffer_read(rbuf, buf, len) - return ffi.string(buf, len) - end - - local function get(idx) - return ffi.string(rbuffer.rbuffer_get(rbuf, idx), 1) - end - - before_each(function() - child_call_once(function() - rbuf = ffi.gc(rbuffer.rbuffer_new(capacity), rbuffer.rbuffer_free) - -- fill the internal buffer with the character '0' to simplify inspecting - ffi.C.memset(rbuf.start_ptr, string.byte('0'), capacity) - end) - end) - - describe('RBUFFER_UNTIL_FULL', function() - local chunks - - local function collect_write_chunks() - rbuffer.ut_rbuffer_each_write_chunk(rbuf, function(wptr, wcnt) - table.insert(chunks, ffi.string(wptr, wcnt)) - end) - end - - before_each(function() - chunks = {} - end) - - describe('with empty buffer in one contiguous chunk', function() - itp('is called once with the empty chunk', function() - collect_write_chunks() - eq({ '0000000000000000' }, chunks) - end) - end) - - describe('with partially empty buffer in one contiguous chunk', function() - itp('is called once with the empty chunk', function() - write('string') - collect_write_chunks() - eq({ '0000000000' }, chunks) - end) - end) - - describe('with filled buffer in one contiguous chunk', function() - itp('is not called', function() - write('abcdefghijklmnopq') - collect_write_chunks() - eq({}, chunks) - end) - end) - - describe('with buffer partially empty in two contiguous chunks', function() - itp('is called twice with each filled chunk', function() - write('1234567890') - read(8) - collect_write_chunks() - eq({ '000000', '12345678' }, chunks) - end) - end) - - describe('with buffer empty in two contiguous chunks', function() - itp('is called twice with each filled chunk', function() - write('12345678') - read(8) - collect_write_chunks() - eq({ '00000000', '12345678' }, chunks) - end) - end) - - describe('with buffer filled in two contiguous chunks', function() - itp('is not called', function() - write('12345678') - read(8) - write('abcdefghijklmnopq') - collect_write_chunks() - eq({}, chunks) - end) - end) - end) - - describe('RBUFFER_UNTIL_EMPTY', function() - local chunks - - local function collect_read_chunks() - rbuffer.ut_rbuffer_each_read_chunk(rbuf, function(rptr, rcnt) - table.insert(chunks, ffi.string(rptr, rcnt)) - end) - end - - before_each(function() - chunks = {} - end) - - describe('with empty buffer', function() - itp('is not called', function() - collect_read_chunks() - eq({}, chunks) - end) - end) - - describe('with partially filled buffer in one contiguous chunk', function() - itp('is called once with the filled chunk', function() - write('string') - collect_read_chunks() - eq({ 'string' }, chunks) - end) - end) - - describe('with filled buffer in one contiguous chunk', function() - itp('is called once with the filled chunk', function() - write('abcdefghijklmnopq') - collect_read_chunks() - eq({ 'abcdefghijklmnop' }, chunks) - end) - end) - - describe('with buffer partially filled in two contiguous chunks', function() - itp('is called twice with each filled chunk', function() - write('1234567890') - read(10) - write('long string') - collect_read_chunks() - eq({ 'long s', 'tring' }, chunks) - end) - end) - - describe('with buffer filled in two contiguous chunks', function() - itp('is called twice with each filled chunk', function() - write('12345678') - read(8) - write('abcdefghijklmnopq') - collect_read_chunks() - eq({ 'abcdefgh', 'ijklmnop' }, chunks) - end) - end) - end) - - describe('RBUFFER_EACH', function() - local chars - - local function collect_chars() - rbuffer.ut_rbuffer_each(rbuf, function(c, i) - table.insert(chars, { string.char(c), tonumber(i) }) - end) - end - before_each(function() - chars = {} - end) - - describe('with empty buffer', function() - itp('is not called', function() - collect_chars() - eq({}, chars) - end) - end) - - describe('with buffer filled in two contiguous chunks', function() - itp('collects each character and index', function() - write('1234567890') - read(10) - write('long string') - collect_chars() - eq({ - { 'l', 0 }, - { 'o', 1 }, - { 'n', 2 }, - { 'g', 3 }, - { ' ', 4 }, - { 's', 5 }, - { 't', 6 }, - { 'r', 7 }, - { 'i', 8 }, - { 'n', 9 }, - { 'g', 10 }, - }, chars) - end) - end) - end) - - describe('RBUFFER_EACH_REVERSE', function() - local chars - - local function collect_chars() - rbuffer.ut_rbuffer_each_reverse(rbuf, function(c, i) - table.insert(chars, { string.char(c), tonumber(i) }) - end) - end - before_each(function() - chars = {} - end) - - describe('with empty buffer', function() - itp('is not called', function() - collect_chars() - eq({}, chars) - end) - end) - - describe('with buffer filled in two contiguous chunks', function() - itp('collects each character and index', function() - write('1234567890') - read(10) - write('long string') - collect_chars() - eq({ - { 'g', 10 }, - { 'n', 9 }, - { 'i', 8 }, - { 'r', 7 }, - { 't', 6 }, - { 's', 5 }, - { ' ', 4 }, - { 'g', 3 }, - { 'n', 2 }, - { 'o', 1 }, - { 'l', 0 }, - }, chars) - end) - end) - end) - - describe('rbuffer_cmp', function() - local function cmp(str) - local rv = rbuffer.rbuffer_cmp(rbuf, to_cstr(str), #str) - if rv == 0 then - return 0 - else - return rv / math.abs(rv) - end - end - - describe('with buffer filled in two contiguous chunks', function() - itp('compares the common longest sequence', function() - write('1234567890') - read(10) - write('long string') - eq(0, cmp('long string')) - eq(0, cmp('long strin')) - eq(-1, cmp('long striM')) - eq(1, cmp('long strio')) - eq(0, cmp('long')) - eq(-1, cmp('lonG')) - eq(1, cmp('lonh')) - end) - end) - - describe('with empty buffer', function() - itp('returns 0 since no characters are compared', function() - eq(0, cmp('')) - end) - end) - end) - - describe('rbuffer_write', function() - itp('fills the internal buffer and returns the write count', function() - eq(12, write('short string')) - eq('short string0000', inspect()) - end) - - itp('wont write beyond capacity', function() - eq(16, write('very very long string')) - eq('very very long s', inspect()) - end) - end) - - describe('rbuffer_read', function() - itp('reads what was previously written', function() - write('to read') - eq('to read', read(20)) - end) - - itp('reads nothing if the buffer is empty', function() - eq('', read(20)) - write('empty') - eq('empty', read(20)) - eq('', read(20)) - end) - end) - - describe('rbuffer_get', function() - itp('fetch the pointer at offset, wrapping if required', function() - write('1234567890') - read(10) - write('long string') - eq('l', get(0)) - eq('o', get(1)) - eq('n', get(2)) - eq('g', get(3)) - eq(' ', get(4)) - eq('s', get(5)) - eq('t', get(6)) - eq('r', get(7)) - eq('i', get(8)) - eq('n', get(9)) - eq('g', get(10)) - end) - end) - - describe('wrapping behavior', function() - itp('writing/reading wraps across the end of the internal buffer', function() - write('1234567890') - eq('1234', read(4)) - eq('5678', read(4)) - write('987654321') - eq('3214567890987654', inspect()) - eq('90987654321', read(20)) - eq('', read(4)) - write('abcdefghijklmnopqrs') - eq('nopabcdefghijklm', inspect()) - eq('abcdefghijklmnop', read(20)) - end) - end) -end) |