mirror of
https://github.com/Chatterino/chatterino2.git
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491cda1a58
I mentioned in #7096 that it's helpful to convert between UTC and local timezones. This PR adds methods for this. Co-authored-by: Mm2PL <mm2pl+gh@kotmisia.pl> Reviewed-by: Mm2PL <mm2pl+gh@kotmisia.pl> Reviewed-by: pajlada <rasmus.karlsson@pajlada.com> Parent-pr: https://github.com/Chatterino/chatterino2/pull/7096
133 lines
4.4 KiB
Lua
133 lines
4.4 KiB
Lua
---@generic T
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---@param a T
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---@param b T
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local function assert_eq(a, b)
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if a ~= b then
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error(tostring(a) .. " ~= " .. tostring(b))
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end
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end
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local specs_ms = {
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{
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iso_ms = "2026-07-10T20:14:41.477Z",
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iso_sec = "2026-07-10T20:14:41Z",
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unix_ms = 1783714481477,
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unix_sec = 1783714481,
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},
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{
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iso_ms = "1930-11-18T00:28:29.123Z",
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iso_sec = "1930-11-18T00:28:29Z",
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unix_ms = -1234567890877,
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unix_sec = -1234567890,
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},
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}
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local specs_sec = {
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{
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iso_ms = "2026-07-10T20:14:41.000Z",
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iso_sec = "2026-07-10T20:14:41Z",
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unix_ms = 1783714481000,
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unix_sec = 1783714481,
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},
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{
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iso_ms = "1930-11-18T00:28:29.000Z",
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iso_sec = "1930-11-18T00:28:29Z",
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unix_ms = -1234567891000,
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unix_sec = -1234567891,
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},
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}
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local tests = {
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iso_string_invalid = function()
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local dt = c2.DateTime.from_iso_string("invalid")
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assert_eq(dt:to_unix_milliseconds(), 0)
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assert_eq(dt:to_iso_string(), "")
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end,
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iso_string_ms = function()
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for _, spec in pairs(specs_ms) do
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local dt = c2.DateTime.from_iso_string(spec.iso_ms)
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assert_eq(dt, c2.DateTime.from_iso_string(spec.iso_ms))
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assert_eq(dt:to_iso_string(), tostring(dt))
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assert_eq(dt:to_iso_string(), spec.iso_ms)
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assert_eq(dt:to_iso_string_without_ms(), spec.iso_sec)
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assert_eq(dt:to_unix_milliseconds(), spec.unix_ms)
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assert_eq(dt:to_unix_seconds(), spec.unix_sec)
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assert(dt:is_utc())
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end
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end,
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iso_string_sec = function()
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for _, spec in pairs(specs_sec) do
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local dt = c2.DateTime.from_iso_string(spec.iso_sec)
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assert_eq(dt, c2.DateTime.from_iso_string(spec.iso_ms))
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assert_eq(dt, c2.DateTime.from_iso_string(spec.iso_sec))
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assert_eq(dt:to_iso_string(), tostring(dt))
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assert_eq(dt:to_iso_string(), spec.iso_ms)
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assert_eq(dt:to_iso_string_without_ms(), spec.iso_sec)
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assert_eq(dt:to_unix_milliseconds(), spec.unix_ms)
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assert_eq(dt:to_unix_seconds(), spec.unix_sec)
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assert(dt:is_utc())
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end
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end,
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current_time = function()
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local dt = c2.DateTime.current_local()
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-- We don't know what it should be, but we know that it must be valid.
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assert(dt:to_iso_string() ~= "")
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assert(dt:is_local())
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dt = c2.DateTime.current_utc()
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assert(dt:to_iso_string() ~= "")
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assert(dt:is_utc())
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end,
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unix_timestamp_ms = function()
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for _, spec in pairs(specs_ms) do
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local dt = c2.DateTime.from_unix_milliseconds(spec.unix_ms)
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assert_eq(dt, c2.DateTime.from_unix_milliseconds(spec.unix_ms))
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assert_eq(dt:to_unix_milliseconds(), spec.unix_ms)
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assert_eq(dt:to_unix_seconds(), spec.unix_sec)
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assert(dt:is_local())
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assert_eq(dt, c2.DateTime.from_iso_string(spec.iso_ms))
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assert_eq(dt:to_utc():to_iso_string(), spec.iso_ms)
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assert_eq(dt:to_utc():to_iso_string_without_ms(), spec.iso_sec)
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end
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end,
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unix_timestamp_sec = function()
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for _, spec in pairs(specs_sec) do
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-- without milliseconds
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local dt = c2.DateTime.from_unix_seconds(spec.unix_sec)
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assert_eq(dt, c2.DateTime.from_unix_seconds(spec.unix_sec))
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assert_eq(dt, c2.DateTime.from_unix_milliseconds(spec.unix_ms))
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assert_eq(dt:to_unix_milliseconds(), spec.unix_ms)
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assert_eq(dt:to_unix_seconds(), spec.unix_sec)
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assert(dt:is_local())
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assert_eq(dt, c2.DateTime.from_iso_string(spec.iso_ms))
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assert_eq(dt:to_utc():to_iso_string(), spec.iso_ms)
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assert_eq(dt:to_utc():to_iso_string_without_ms(), spec.iso_sec)
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end
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end,
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local_utc_conversion = function()
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local dt_utc = c2.DateTime.current_utc()
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local dt_local = dt_utc:to_local()
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assert(dt_utc:is_utc())
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assert(dt_local:is_local())
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assert_eq(dt_local, dt_utc)
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dt_local = c2.DateTime.current_local()
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dt_utc = dt_local:to_utc()
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assert(dt_utc:is_utc())
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assert(dt_local:is_local())
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assert_eq(dt_local, dt_utc)
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end,
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}
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for name, fn in pairs(tests) do
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local ok, res = xpcall(fn, debug.traceback)
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if not ok then
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error(name .. " failed: " .. res)
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end
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end
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