[Tarantool-patches] [PATCH resend v2 03/11] lua, datetime: datetime tests

Timur Safin tsafin at tarantool.org
Fri Jul 30 23:45:13 MSK 2021


Hello Oleg,

: From: Oleg Babin <olegrok at tarantool.org>
: Subject: Re: [Tarantool-patches] [PATCH resend v2 03/11] lua, datetime:
: datetime tests
: 
: Thanks for your patch. To be honest I don't understand the structure of
: this changes.
: 
: I expect that "datetime tests" will contain only tests. All unrelated to
: tests changes
: 
: should be squashed to the previous patch.

Yup, sudden artefact of late minute squashes. Will copy to prior commit.


: 
: 
: I put several comments below.
: 
: 
: On 28.07.2021 13:34, Timur Safin via Tarantool-patches wrote:
: > * created app-tap test for new builtin module `datetime.lua`
: > * added case to check datetime string formatting using:
: >    - asctime (gmt time);
: >    - ctime (local TZ time);
: >    - strftime (using given format).
: >
: > * added positive/negative checks to datetime test
: >    - extended api of datetime.parse_date, .parse_time, .parse_time_zone
: >      with a length of parsed (sub)string;
: >    - this allows us to check partially valid strings like "20121224 Foo
: bar".
: >
: > Part of #5941
: > ---
: >   src/lua/datetime.lua           |  14 ++-
: >   test/app-tap/datetime.test.lua | 191 +++++++++++++++++++++++++++++++++
: >   2 files changed, 197 insertions(+), 8 deletions(-)
: >   create mode 100755 test/app-tap/datetime.test.lua
: >
: > diff --git a/src/lua/datetime.lua b/src/lua/datetime.lua
: > index 0996ca5a2..f4d2d7737 100644
: > --- a/src/lua/datetime.lua
: > +++ b/src/lua/datetime.lua
: > @@ -318,7 +318,7 @@ local function datetime_new(o)
: >               end,
: >
: >               month = function(v)
: > -                assert(v > 0 and v < 12 )
: > +                assert(v > 0 and v < 13 )
: >                   M = v
: >                   ymd = true
: >               end,
: > @@ -393,9 +393,8 @@ end
: >
: >   local function parse_date(str)
: >       local dt = ffi.new('dt_t[1]')
: > -    local rc = cdt.dt_parse_iso_date(str, #str, dt)
: > -    assert(rc > 0)
: > -    return mk_timestamp(dt[0])
: > +    local len = cdt.dt_parse_iso_date(str, #str, dt)
: > +    return len > 0 and mk_timestamp(dt[0]) or nil, tonumber(len)
: >   end
: >
: >   --[[
: > @@ -411,9 +410,8 @@ end
: >   local function parse_time(str)
: >       local sp = ffi.new('int[1]')
: >       local fp = ffi.new('int[1]')
: > -    local rc = cdt.dt_parse_iso_time(str, #str, sp, fp)
: > -    assert(rc > 0)
: > -    return mk_timestamp(nil, sp[0], fp[0])
: > +    local len = cdt.dt_parse_iso_time(str, #str, sp, fp)
: > +    return len > 0 and mk_timestamp(nil, sp[0], fp[0]) or nil,
: tonumber(len)
: >   end
: >
: >   --[[
: > @@ -448,7 +446,7 @@ local function parse_str(str)
: >       str = str:sub(tonumber(n) + 1)
: >
: >       local ch = str:sub(1,1)
: > -    if ch ~= 't' and ch ~= 'T' and ch ~= ' ' then
: > +    if ch:match('[Tt ]') == nil then
: >           return mk_timestamp(dt_)
: >       end
: >
: > diff --git a/test/app-tap/datetime.test.lua b/test/app-
: tap/datetime.test.lua
: > new file mode 100755
: > index 000000000..09c968858
: > --- /dev/null
: > +++ b/test/app-tap/datetime.test.lua
: > @@ -0,0 +1,191 @@
: > +#!/usr/bin/env tarantool
: > +
: > +local tap = require('tap')
: > +local test = tap.test("errno")
: > +local date = require('datetime')
: > +
: > +test:plan(5)
: > +
: > +test:test("Simple tests for parser", function(test)
: > +    test:plan(2)
: > +    test:ok(date("1970-01-01T01:00:00Z") ==
: > +            date {year=1970, month=1, day=1, hour=1, minute=0, second=0})
: > +    test:ok(date("1970-01-01T02:00:00+02:00") ==
: > +            date {year=1970, month=1, day=1, hour=2, minute=0, second=0,
: tz=120})
: > +end)
: > +
: > +test:test("Multiple tests for parser (with nanoseconds)", function(test)
: > +    test:plan(165)
: > +    -- borrowed from p5-time-moments/t/180_from_string.t
: > +    local tests =
: > +    {
: > +        { '1970-01-01T00:00:00Z',                       0,           0,
: 0 },
: > +        { '1970-01-01T02:00:00+02:00',                  0,           0,
: 120 },
: > +        { '1970-01-01T01:30:00+01:30',                  0,           0,
: 90 },
: > +        { '1970-01-01T01:00:00+01:00',                  0,           0,
: 60 },
: > +        { '1970-01-01T00:01:00+00:01',                  0,           0,
: 1 },
: > +        { '1970-01-01T00:00:00+00:00',                  0,           0,
: 0 },
: > +        { '1969-12-31T23:59:00-00:01',                  0,           0,
: -1 },
: > +        { '1969-12-31T23:00:00-01:00',                  0,           0,
: -60 },
: > +        { '1969-12-31T22:30:00-01:30',                  0,           0,
: -90 },
: > +        { '1969-12-31T22:00:00-02:00',                  0,           0, -
: 120 },
: > +        { '1970-01-01T00:00:00.123456789Z',             0,   123456789,
: 0 },
: > +        { '1970-01-01T00:00:00.12345678Z',              0,   123456780,
: 0 },
: > +        { '1970-01-01T00:00:00.1234567Z',               0,   123456700,
: 0 },
: > +        { '1970-01-01T00:00:00.123456Z',                0,   123456000,
: 0 },
: > +        { '1970-01-01T00:00:00.12345Z',                 0,   123450000,
: 0 },
: > +        { '1970-01-01T00:00:00.1234Z',                  0,   123400000,
: 0 },
: > +        { '1970-01-01T00:00:00.123Z',                   0,   123000000,
: 0 },
: > +        { '1970-01-01T00:00:00.12Z',                    0,   120000000,
: 0 },
: > +        { '1970-01-01T00:00:00.1Z',                     0,   100000000,
: 0 },
: > +        { '1970-01-01T00:00:00.01Z',                    0,    10000000,
: 0 },
: > +        { '1970-01-01T00:00:00.001Z',                   0,     1000000,
: 0 },
: > +        { '1970-01-01T00:00:00.0001Z',                  0,      100000,
: 0 },
: > +        { '1970-01-01T00:00:00.00001Z',                 0,       10000,
: 0 },
: > +        { '1970-01-01T00:00:00.000001Z',                0,        1000,
: 0 },
: > +        { '1970-01-01T00:00:00.0000001Z',               0,         100,
: 0 },
: > +        { '1970-01-01T00:00:00.00000001Z',              0,          10,
: 0 },
: > +        { '1970-01-01T00:00:00.000000001Z',             0,           1,
: 0 },
: > +        { '1970-01-01T00:00:00.000000009Z',             0,           9,
: 0 },
: > +        { '1970-01-01T00:00:00.00000009Z',              0,          90,
: 0 },
: > +        { '1970-01-01T00:00:00.0000009Z',               0,         900,
: 0 },
: > +        { '1970-01-01T00:00:00.000009Z',                0,        9000,
: 0 },
: > +        { '1970-01-01T00:00:00.00009Z',                 0,       90000,
: 0 },
: > +        { '1970-01-01T00:00:00.0009Z',                  0,      900000,
: 0 },
: > +        { '1970-01-01T00:00:00.009Z',                   0,     9000000,
: 0 },
: > +        { '1970-01-01T00:00:00.09Z',                    0,    90000000,
: 0 },
: > +        { '1970-01-01T00:00:00.9Z',                     0,   900000000,
: 0 },
: > +        { '1970-01-01T00:00:00.99Z',                    0,   990000000,
: 0 },
: > +        { '1970-01-01T00:00:00.999Z',                   0,   999000000,
: 0 },
: > +        { '1970-01-01T00:00:00.9999Z',                  0,   999900000,
: 0 },
: > +        { '1970-01-01T00:00:00.99999Z',                 0,   999990000,
: 0 },
: > +        { '1970-01-01T00:00:00.999999Z',                0,   999999000,
: 0 },
: > +        { '1970-01-01T00:00:00.9999999Z',               0,   999999900,
: 0 },
: > +        { '1970-01-01T00:00:00.99999999Z',              0,   999999990,
: 0 },
: > +        { '1970-01-01T00:00:00.999999999Z',             0,   999999999,
: 0 },
: > +        { '1970-01-01T00:00:00.0Z',                     0,           0,
: 0 },
: > +        { '1970-01-01T00:00:00.00Z',                    0,           0,
: 0 },
: > +        { '1970-01-01T00:00:00.000Z',                   0,           0,
: 0 },
: > +        { '1970-01-01T00:00:00.0000Z',                  0,           0,
: 0 },
: > +        { '1970-01-01T00:00:00.00000Z',                 0,           0,
: 0 },
: > +        { '1970-01-01T00:00:00.000000Z',                0,           0,
: 0 },
: > +        { '1970-01-01T00:00:00.0000000Z',               0,           0,
: 0 },
: > +        { '1970-01-01T00:00:00.00000000Z',              0,           0,
: 0 },
: > +        { '1970-01-01T00:00:00.000000000Z',             0,           0,
: 0 },
: > +        { '1973-11-29T21:33:09Z',               123456789,           0,
: 0 },
: > +        { '2013-10-28T17:51:56Z',              1382982716,           0,
: 0 },
: > +        -- { '9999-12-31T23:59:59Z',            253402300799,
: 0,    0 },
: 
: Why is it commented?

It used to be failing to pass range checks, but now there is no reason (IIRC)
need to restore this case. Thanks!

: 
: > +    }
: > +    for _, value in ipairs(tests) do
: > +        local str, epoch, nsec, offset
: > +        str, epoch, nsec, offset = unpack(value)
: > +        local dt = date(str)
: > +        test:ok(dt.secs == epoch, ('%s: dt.secs == %d'):format(str,
: epoch))
: > +        test:ok(dt.nsec == nsec, ('%s: dt.nsec == %d'):format(str, nsec))
: > +        test:ok(dt.offset == offset, ('%s: dt.offset == %d'):format(str,
: offset))
: > +    end
: > +end)
: > +
: > +local ffi = require('ffi')
: > +
: > +ffi.cdef [[
: > +    void tzset(void);
: > +]]
: > +
: 
: 
: It's probably better to require all modules at the top of the file.

Will do

: 
: > +test:test("Datetime string formatting", function(test)
: > +    test:plan(7)
: > +    local str = "1970-01-01"
: > +    local t = date(str)
: > +    test:ok(t.secs == 0, ('%s: t.secs == %d'):format(str,
: tonumber(t.secs)))
: > +    test:ok(t.nsec == 0, ('%s: t.nsec == %d'):format(str, t.nsec))
: > +    test:ok(t.offset == 0, ('%s: t.offset == %d'):format(str, t.offset))
: > +    test:ok(date.asctime(t) == 'Thu Jan  1 00:00:00 1970\n', ('%s:
: asctime'):format(str))
: > +    -- ctime() is local timezone dependent. To make sure that
: > +    -- test is deterministic we enforce timezone via TZ environment
: > +    -- manipulations and calling tzset()
: > +
: > +    -- redefine timezone to be always GMT-2
: > +    os.setenv('TZ', 'GMT-2')
: > +    ffi.C.tzset()
: > +    test:ok(date.ctime(t) == 'Thu Jan  1 02:00:00 1970\n', ('%s: ctime
: with timezone'):format(str))
: > +    test:ok(date.strftime('%d/%m/%Y', t) == '01/01/1970', ('%s: strftime
: #1'):format(str))
: > +    test:ok(date.strftime('%A %d. %B %Y', t) == 'Thursday 01. January
: 1970', ('%s: strftime #2'):format(str))
: > +end)
: > +
: > +test:test("Parse iso date - valid strings", function(test)
: > +    test:plan(32)
: > +    local good = {
: > +        {2012, 12, 24, "20121224",                   8 },
: > +        {2012, 12, 24, "20121224  Foo bar",          8 },
: > +        {2012, 12, 24, "2012-12-24",                10 },
: > +        {2012, 12, 24, "2012-12-24 23:59:59",       10 },
: > +        {2012, 12, 24, "2012-12-24T00:00:00+00:00", 10 },
: > +        {2012, 12, 24, "2012359",                    7 },
: > +        {2012, 12, 24, "2012359T235959+0130",        7 },
: > +        {2012, 12, 24, "2012-359",                   8 },
: > +        {2012, 12, 24, "2012W521",                   8 },
: > +        {2012, 12, 24, "2012-W52-1",                10 },
: > +        {2012, 12, 24, "2012Q485",                   8 },
: > +        {2012, 12, 24, "2012-Q4-85",                10 },
: > +        {   1,  1,  1, "0001-Q1-01",                10 },
: > +        {   1,  1,  1, "0001-W01-1",                10 },
: > +        {   1,  1,  1, "0001-01-01",                10 },
: > +        {   1,  1,  1, "0001-001",                   8 },
: > +    }
: > +
: > +    for _, value in ipairs(good) do
: > +        local year, month, day, str, date_part_len;
: 
: I didn't see before that somebody uses semicolon after variables definition.

Centures of programming in C/C++ give to know :)

: 
: It's about code-style. It is clear that this is syntactically correct.
: 
: > +        year, month, day, str, date_part_len = unpack(value)
: > +        local expected_date = date{year = year, month = month, day = day}
: > +        local date_part, len
: > +        date_part, len = date.parse_date(str)
: > +        test:ok(len == date_part_len, ('%s: length check %d'):format(str,
: len))
: > +        test:ok(expected_date == date_part, ('%s: expected
: date'):format(str))
: > +    end
: > +end)
: > +
: > +test:test("Parse iso date - invalid strings", function(test)
: > +    test:plan(62)
: > +    local bad = {
: > +        "20121232"   , -- Invalid day of month
: > +        "2012-12-310", -- Invalid day of month
: > +        "2012-13-24" , -- Invalid month
: > +        "2012367"    , -- Invalid day of year
: > +        "2012-000"   , -- Invalid day of year
: > +        "2012W533"   , -- Invalid week of year
: > +        "2012-W52-8" , -- Invalid day of week
: > +        "2012Q495"   , -- Invalid day of quarter
: > +        "2012-Q5-85" , -- Invalid quarter
: > +        "20123670"   , -- Trailing digit
: > +        "201212320"  , -- Trailing digit
: > +        "2012-12"    , -- Reduced accuracy
: > +        "2012-Q4"    , -- Reduced accuracy
: > +        "2012-Q42"   , -- Invalid
: > +        "2012-Q1-1"  , -- Invalid day of quarter
: > +        "2012Q--420" , -- Invalid
: > +        "2012-Q-420" , -- Invalid
: > +        "2012Q11"    , -- Incomplete
: > +        "2012Q1234"  , -- Trailing digit
: > +        "2012W12"    , -- Incomplete
: > +        "2012W1234"  , -- Trailing digit
: > +        "2012W-123"  , -- Invalid
: > +        "2012-W12"   , -- Incomplete
: > +        "2012-W12-12", -- Trailing digit
: > +        "2012U1234"  , -- Invalid
: > +        "2012-1234"  , -- Invalid
: > +        "2012-X1234" , -- Invalid
: > +        "0000-Q1-01" , -- Year less than 0001
: > +        "0000-W01-1" , -- Year less than 0001
: > +        "0000-01-01" , -- Year less than 0001
: > +        "0000-001"   , -- Year less than 0001
: > +    }
: > +
: > +    for _, str in ipairs(bad) do
: > +        local date_part, len
: > +        date_part, len = date.parse_date(str)
: > +        test:ok(len == 0, ('%s: length check %d'):format(str, len))
: > +        test:ok(date_part == nil, ('%s: empty date check %s'):format(str,
: date_part))
: > +    end
: > +end)
: > +
: > +os.exit(test:check() and 0 or 1)

Thanks,
Timur



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