Add option to manipulate timestamp of blocks

[3esmit]

I'm working on a contract with Lock period. I'm having to change the constants from 25 days to 5 minutes to test. Would be interesting if we have a plugin or feature to manipulate timestamp of the block.

If that is not possible, a target time to execute transaction would be good too.

[asinyagin]

@3esmit yeah, that seems to be a good feature for Studio. We have such call for testing purposes in the sandbox https://github.com/ether-camp/ethereum-sandbox/blob/master/api/sandbox.js#L172
Here's how you can use it https://github.com/ether-camp/ethereum-testing-reference/blob/43ab75e4fd33788700df01d19a04ba724dc540f3/test/vault/vault-test.js#L70

[3esmit]

Nice, but I don't get how can I execute this javascript in my current project config. But as I see, you can manipulate the timestamp.
Would be good that block always use real timestamp, unless when defined manually. So ethereum studio just need have a input to set timestamp?

A option would be to set a hard timestamp, so there could be blocks with wrong timestamp order or even multiple blocks at the same timestamp (something impossible in a real ethereum network due consensus).
Other option would be to forward the clock that generates the timestamp to a new position defined.
Any would match my needs, and I don't know which aprooch is better for most use cases.

[asinyagin]

It's a test-script which uses our testing framework. Here's more info on how to run such tests https://github.com/ether-camp/ethereum-testing-reference/.

[DaveAppleton]

Thank you. That's a great idea.