import std/times import pkg/chronos import codex/contracts/clock import codex/utils/json import ../ethertest ethersuite "On-Chain Clock": var clock: OnChainClock setup: clock = OnChainClock.new(provider) await clock.start() teardown: await clock.stop() test "returns the current time of the EVM": let latestBlock = (!await provider.getBlock(BlockTag.latest)) let timestamp = latestBlock.timestamp.truncate(int64) check clock.now() == timestamp test "updates time with timestamp of new blocks": let future = (getTime() + 42.years).toUnix discard await provider.send("evm_setNextBlockTimestamp", @[%future]) discard await provider.send("evm_mine") check clock.now() == future test "updates time using wall-clock in-between blocks": let past = clock.now() await sleepAsync(chronos.seconds(1)) check clock.now() > past test "can wait until a certain time is reached by the chain": let future = clock.now() + 42 # seconds let waiting = clock.waitUntil(future) discard await provider.send("evm_setNextBlockTimestamp", @[%future]) discard await provider.send("evm_mine") check await waiting.withTimeout(chronos.milliseconds(100)) test "can wait until a certain time is reached by the wall-clock": let future = clock.now() + 1 # seconds let waiting = clock.waitUntil(future) check await waiting.withTimeout(chronos.seconds(2)) test "raises when not started": expect AssertionDefect: discard OnChainClock.new(provider).now() test "raises when stopped": await clock.stop() expect AssertionDefect: discard clock.now() test "handles starting multiple times": await clock.start() await clock.start() test "handles stopping multiple times": await clock.stop() await clock.stop()