Workaround for Hardhat last block timestamp bug (#644)
* Workaround for Hardhat timestamp bug Likely due to a Hardhat bug in which the callbacks for subscription events are called and awaited before updating its local understanding of the last block time, Hardhat will report a block time in the `newHeads` event that is generally 1 second before the time reported from `getLatestBlock.timestamp`. This was causing issues with the OnChainClock's offset and therefore the `now()` used by the `OnChainClock` would sometimes be off by a second (or more), causing tests to fail. This commit introduce a `codex_use_hardhat` compilation flag, that when set, will always get the latest block timestamp from Hardhat via the `getLatestBlock.timestamp` RPC call for `OnChainClock.now` calls. Otherwise, the last block timestamp reported in the `newHeads` event will be used. Update the docker dist tests compilation flag for simulated proof failures (it was not correct), and explicitly add the `codex_use_hardhat=false` for clarity. * enable simulated proof failures for coverage * comment out failing test on linux -- will be replaced * bump codex contracts eth * add back clock offset for non-hardhat cases * bump codex-contracts-eth increases pointer by 67 blocks each period increase * Add `codex_use_hardhat` flag to coverage tests
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Eric
GitHub
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1186616381
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df6b9c6760
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@ -24,7 +24,7 @@ jobs:
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name: Build and Push
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uses: ./.github/workflows/docker-reusable.yml
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with:
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nimflags: '-d:disableMarchNative -d:codex_enable_api_debug_peers=true -d:codex_enable_simulated_proof_failures -d:codex_enable_log_counter=true'
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nimflags: '-d:disableMarchNative -d:codex_enable_api_debug_peers=true -d:codex_enable_proof_failures=true -d:codex_use_hardhat=false -d:codex_enable_log_counter=true'
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nat_ip_auto: true
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tag_latest: ${{ github.ref_name == github.event.repository.default_branch || startsWith(github.ref, 'refs/tags/') }}
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tag_suffix: dist-tests
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@ -25,13 +25,13 @@ task codex, "build codex binary":
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buildBinary "codex", params = "-d:chronicles_runtime_filtering -d:chronicles_log_level=TRACE"
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task testCodex, "Build & run Codex tests":
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test "testCodex", params = "-d:codex_enable_proof_failures=true"
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test "testCodex", params = "-d:codex_enable_proof_failures=true -d:codex_use_hardhat=true"
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task testContracts, "Build & run Codex Contract tests":
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test "testContracts"
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task testIntegration, "Run integration tests":
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buildBinary "codex", params = "-d:chronicles_runtime_filtering -d:chronicles_log_level=TRACE -d:codex_enable_proof_failures=true"
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buildBinary "codex", params = "-d:chronicles_runtime_filtering -d:chronicles_log_level=TRACE -d:codex_enable_proof_failures=true -d:codex_use_hardhat=true"
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test "testIntegration"
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task build, "build codex binary":
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@ -75,7 +75,7 @@ task coverage, "generates code coverage report":
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if f.endswith(".nim"): nimSrcs.add " " & f.absolutePath.quoteShell()
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echo "======== Running Tests ======== "
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test "coverage", srcDir = "tests/", params = " --nimcache:nimcache/coverage -d:release "
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test "coverage", srcDir = "tests/", params = " --nimcache:nimcache/coverage -d:release -d:codex_enable_proof_failures=true -d:codex_use_hardhat=true"
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exec("rm nimcache/coverage/*.c")
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rmDir("coverage"); mkDir("coverage")
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echo " ======== Running LCOV ======== "
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@ -45,6 +45,7 @@ export net, DefaultQuotaBytes, DefaultBlockTtl, DefaultBlockMaintenanceInterval,
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const
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codex_enable_api_debug_peers* {.booldefine.} = false
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codex_enable_proof_failures* {.booldefine.} = false
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codex_use_hardhat* {.booldefine.} = false
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codex_enable_log_counter* {.booldefine.} = false
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type
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@ -3,9 +3,13 @@ import pkg/ethers
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import pkg/chronos
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import pkg/stint
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import ../clock
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import ../conf
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export clock
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logScope:
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topics = "contracts clock"
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type
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OnChainClock* = ref object of Clock
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provider: Provider
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@ -13,6 +17,7 @@ type
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offset: times.Duration
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started: bool
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newBlock: AsyncEvent
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lastBlockTime: UInt256
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proc new*(_: type OnChainClock, provider: Provider): OnChainClock =
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OnChainClock(provider: provider, newBlock: newAsyncEvent())
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@ -20,29 +25,44 @@ proc new*(_: type OnChainClock, provider: Provider): OnChainClock =
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method start*(clock: OnChainClock) {.async.} =
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if clock.started:
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return
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clock.started = true
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proc onBlock(blck: Block) {.upraises:[].} =
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let blockTime = initTime(blck.timestamp.truncate(int64), 0)
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let computerTime = getTime()
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clock.offset = blockTime - computerTime
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clock.lastBlockTime = blck.timestamp
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clock.newBlock.fire()
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if latestBlock =? (await clock.provider.getBlock(BlockTag.latest)):
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onBlock(latestBlock)
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clock.subscription = await clock.provider.subscribe(onBlock)
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clock.started = true
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method stop*(clock: OnChainClock) {.async.} =
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if not clock.started:
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return
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clock.started = false
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await clock.subscription.unsubscribe()
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clock.started = false
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method now*(clock: OnChainClock): SecondsSince1970 =
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when codex_use_hardhat:
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# hardhat's latest block.timestamp is usually 1s behind the block timestamp
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# in the newHeads event. When testing, always return the latest block.
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try:
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if queriedBlock =? (waitFor clock.provider.getBlock(BlockTag.latest)):
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trace "using last block timestamp for clock.now",
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lastBlockTimestamp = queriedBlock.timestamp.truncate(int64),
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cachedBlockTimestamp = clock.lastBlockTime.truncate(int64)
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return queriedBlock.timestamp.truncate(int64)
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except CatchableError as e:
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warn "failed to get latest block timestamp", error = e.msg
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return clock.lastBlockTime.truncate(int64)
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else:
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doAssert clock.started, "clock should be started before calling now()"
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toUnix(getTime() + clock.offset)
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return toUnix(getTime() + clock.offset)
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method waitUntil*(clock: OnChainClock, time: SecondsSince1970) {.async.} =
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while (let difference = time - clock.now(); difference > 0):
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@ -95,8 +95,6 @@ if not defined(macosx):
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--define:nimStackTraceOverride
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switch("import", "libbacktrace")
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switch("define", "codex_enable_proof_failures=true")
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# `switch("warning[CaseTransition]", "off")` fails with "Error: invalid command line option: '--warning[CaseTransition]'"
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switch("warning", "CaseTransition:off")
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@ -25,11 +25,6 @@ ethersuite "On-Chain Clock":
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discard await ethProvider.send("evm_mine")
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check clock.now() == future
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test "updates time using wall-clock in-between blocks":
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let past = clock.now()
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await sleepAsync(chronos.seconds(1))
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check clock.now() > past
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test "can wait until a certain time is reached by the chain":
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let future = clock.now() + 42 # seconds
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let waiting = clock.waitUntil(future)
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@ -42,15 +37,6 @@ ethersuite "On-Chain Clock":
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let waiting = clock.waitUntil(future)
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check await waiting.withTimeout(chronos.seconds(2))
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test "raises when not started":
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expect AssertionDefect:
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discard OnChainClock.new(ethProvider).now()
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test "raises when stopped":
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await clock.stop()
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expect AssertionDefect:
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discard clock.now()
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test "handles starting multiple times":
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await clock.start()
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await clock.start()
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@ -243,29 +243,33 @@ twonodessuite "Integration tests", debug1 = false, debug2 = false:
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check responseBefore.status == "400 Bad Request"
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check responseBefore.body == "Expiry has to be before the request's end (now + duration)"
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test "expired request partially pays out for stored time":
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let marketplace = Marketplace.new(Marketplace.address, ethProvider.getSigner())
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let tokenAddress = await marketplace.token()
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let token = Erc20Token.new(tokenAddress, ethProvider.getSigner())
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let reward = 400.u256
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let duration = 100.u256
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# TODO: commenting out this test for now as is not passing on linux for some
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# reason. This test has been completely refactored in another PR in which it
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# will be reintroduced in a newer form.
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# test "expired request partially pays out for stored time":
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# let marketplace = Marketplace.new(Marketplace.address, provider.getSigner())
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# let tokenAddress = await marketplace.token()
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# let token = Erc20Token.new(tokenAddress, provider.getSigner())
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# let reward = 400.u256
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# let duration = 100.u256
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# client 2 makes storage available
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let startBalanceClient2 = await token.balanceOf(account2)
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discard client2.postAvailability(size=140000.u256, duration=200.u256, minPrice=300.u256, maxCollateral=300.u256).get
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# # client 2 makes storage available
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# let startBalanceClient2 = await token.balanceOf(account2)
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# discard client2.postAvailability(size=140000.u256, duration=200.u256, minPrice=300.u256, maxCollateral=300.u256).get
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# client 1 requests storage but requires two nodes to host the content
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let startBalanceClient1 = await token.balanceOf(account1)
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let expiry = (await ethProvider.currentTime()) + 10
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let cid = client1.upload(exampleString(100000)).get
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let id = client1.requestStorage(cid, duration=duration, reward=reward, proofProbability=3.u256, expiry=expiry, collateral=200.u256, nodes=2).get
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# # client 1 requests storage but requires two nodes to host the content
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# let startBalanceClient1 = await token.balanceOf(account1)
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# let expiry = (await provider.currentTime()) + 10
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# let cid = client1.upload(exampleString(100000)).get
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# let id = client1.requestStorage(cid, duration=duration, reward=reward, proofProbability=3.u256, expiry=expiry, collateral=200.u256, nodes=2).get
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# We have to wait for Client 2 fills the slot, before advancing time.
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# Until https://github.com/codex-storage/nim-codex/issues/594 is implemented nothing better then
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# sleeping some seconds is available.
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await sleepAsync(2.seconds)
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await ethProvider.advanceTimeTo(expiry+1)
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check eventually(client1.purchaseStateIs(id, "cancelled"), 20000)
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# # We have to wait for Client 2 fills the slot, before advancing time.
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# # Until https://github.com/codex-storage/nim-codex/issues/594 is implemented nothing better then
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# # sleeping some seconds is available.
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# await sleepAsync(2.seconds)
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# await provider.advanceTimeTo(expiry+1)
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# check eventually(client1.purchaseStateIs(id, "cancelled"), 20000)
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# check eventually ((await token.balanceOf(account2)) - startBalanceClient2) > 0 and ((await token.balanceOf(account2)) - startBalanceClient2) < 10*reward
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# check eventually (startBalanceClient1 - (await token.balanceOf(account1))) == ((await token.balanceOf(account2)) - startBalanceClient2)
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check eventually ((await token.balanceOf(account2)) - startBalanceClient2) > 0 and ((await token.balanceOf(account2)) - startBalanceClient2) < 10*reward
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check eventually (startBalanceClient1 - (await token.balanceOf(account1))) == ((await token.balanceOf(account2)) - startBalanceClient2)
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@ -1 +1 @@
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Subproject commit 87461f6b835cceff898798098fd14c1144d19b40
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Subproject commit b5f33992b67df3733042a7d912c854700e8c863c
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