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LTC support/testing fixes

Browse source 
- examples/halving-calculator.py: support LTC and BCH
- test/test.py regtest: support Litecoin Core v0.18.1
- test/unit_tests.py: add LTC test
This commit is contained in:
The MMGen Project 2020-06-11 14:36:32 +00:00
commit cfa8d19cd0
Signed by: mmgen
GPG key ID: 3F8B1861E32B7DA2
6 changed files with 31 additions and 24 deletions
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19
examples/halving-calculator.py
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@ -9,7 +9,7 @@ from mmgen.common import *
opts.init({
'text': {
'desc': 'Estimate date of next Bitcoin halving',
'desc': 'Estimate date of next block subsidy halving',
'usage':'[opts]',
'options': """
-h, --help Print this help message
@ -18,20 +18,20 @@ opts.init({
estimate
""",
'notes': """
Requires a running Bitcoin Core node
Requires a running coin daemon
Specify coin with --coin=btc (default)/--coin=bch/--coin=ltc
If necessary, invoke with --rpc-host/--rpc-port/--rpc-user/--rpc-password
Specify aiohttp backend with --rpc-backend=aiohttp (Linux only)
"""
}
})
HalvingInterval = 210000 # src/chainparams.cpp
def date(t):
return '{}-{:02}-{:02} {:02}:{:02}:{:02}'.format(*time.gmtime(t)[:6])
def dhms(t):
return f'{t//60//60//24} days, {t//60//60%24:02}:{t//60%60:02}:{t%60:02} h/m/s'
t,neg = (-t,'-') if t < 0 else (t,' ')
return f'{neg}{t//60//60//24} days, {t//60//60%24:02}:{t//60%60:02}:{t%60:02} h/m/s'
def time_diff_warning(t_diff):
if abs(t_diff) > 60*60:
@ -48,8 +48,9 @@ async def main():
c = await rpc_init(proto)
tip = await c.call('getblockcount')
remaining = HalvingInterval - tip % HalvingInterval
sample_size = int(opt.sample_size) if opt.sample_size else max(remaining,144)
assert tip > 1, 'block tip must be > 1'
remaining = proto.halving_interval - tip % proto.halving_interval
sample_size = int(opt.sample_size) if opt.sample_size else min(tip-1,max(remaining,144))
# aiohttp backend will perform these two calls concurrently:
cur,old = await c.gathered_call('getblockstats',((tip,),(tip - sample_size,)))
@ -64,10 +65,10 @@ async def main():
print(f'Current block: {tip}')
print(f'Next halving block: {tip + remaining}')
print(f'Blocks until halving: {remaining}')
print('Current block subsidy: {} BTC'.format(str(sub).rstrip('0')))
print('Current block subsidy: {} {}'.format(str(sub).rstrip('0'),proto.coin))
print(f'Current block discovery rate (over last {sample_size} blocks): {bdr/60:0.1f} minutes')
print(f'Current clock time (UTC): {date(clock_time)}')
print(f'Est. halving date (UTC): {date(cur["time"] + t_rem)}')
print(f'Est. time until halving: {dhms(cur["time"] + t_rem - clock_time)}')
print(f'Est. time until halving: {dhms(cur["time"] + t_rem - clock_time)}')
run_session(main())