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bab24a88ab
- reltimestr(): Produce negative value by comparing the unsigned
proftime_T value to INT64_MAX.
https://github.com/neovim/neovim/issues/10452#issuecomment-511155132
1. The interfaces of nearly all platforms return uint64_t. INT64_MAX is
only half of that.
2. Low-level interfaces like this typically define that there is no
fixed starting point. The only guarantees are that it's (a)
monotonically increasing at a rate that (b) matches real time.
ref 06af88cd72
fix #10452
51 lines
1.6 KiB
Lua
51 lines
1.6 KiB
Lua
local helpers = require('test.functional.helpers')(after_each)
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local clear, eq, ok = helpers.clear, helpers.eq, helpers.ok
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local neq, command, funcs = helpers.neq, helpers.command, helpers.funcs
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local reltime, reltimestr, reltimefloat = funcs.reltime, funcs.reltimestr, funcs.reltimefloat
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describe('reltimestr(), reltimefloat()', function()
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before_each(clear)
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it('Checks', function()
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local now = reltime()
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command('sleep 10m')
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local later = reltime()
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local elapsed = reltime(now)
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neq(reltimestr(elapsed), '0.0')
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ok(reltimefloat(elapsed) > 0.0)
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-- original vim test for < 0.1, but easily fails on travis
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ok(nil ~= string.match(reltimestr(elapsed), "0%."))
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ok(reltimefloat(elapsed) < 1.0)
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local same = reltime(now, now)
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local samestr = string.gsub(reltimestr(same), ' ', '')
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samestr = string.sub(samestr, 1, 5)
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eq('0.000', samestr)
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eq(0.0, reltimefloat(same))
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local differs = reltime(now, later)
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neq(reltimestr(differs), '0.0')
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ok(reltimefloat(differs) > 0.0)
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-- original vim test for < 0.1, but easily fails on travis
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ok(nil ~= string.match(reltimestr(differs), "0%."))
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ok(reltimefloat(differs) < 1.0)
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end)
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it('reltime() allows negative result #10452', function()
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local older_time = reltime()
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command('sleep 1m')
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local newer_time = reltime()
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-- Start/end swapped: should be something like -0.002123.
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local rv = tonumber(reltimestr(reltime(newer_time, older_time)))
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ok(rv < 0 and rv > -10)
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-- Not swapped: should be something like 0.002123.
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rv = tonumber(reltimestr(reltime(older_time, newer_time)))
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ok(rv > 0 and rv < 10)
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end)
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end)
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