{"action":"created","issue":{"url":"https://api.github.com/repos/rickynils/scalacheck/issues/263","repository_url":"https://api.github.com/repos/rickynils/scalacheck","labels_url":"https://api.github.com/repos/rickynils/scalacheck/issues/263/labels{/name}","comments_url":"https://api.github.com/repos/rickynils/scalacheck/issues/263/comments","events_url":"https://api.github.com/repos/rickynils/scalacheck/issues/263/events","html_url":"https://github.com/rickynils/scalacheck/pull/263","id":176202848,"number":263,"title":"Support deterministic testing using Parameters.","user":{"login":"non","id":218045,"avatar_url":"https://avatars.githubusercontent.com/u/218045?v=3","gravatar_id":"","url":"https://api.github.com/users/non","html_url":"https://github.com/non","followers_url":"https://api.github.com/users/non/followers","following_url":"https://api.github.com/users/non/following{/other_user}","gists_url":"https://api.github.com/users/non/gists{/gist_id}","starred_url":"https://api.github.com/users/non/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/non/subscriptions","organizations_url":"https://api.github.com/users/non/orgs","repos_url":"https://api.github.com/users/non/repos","events_url":"https://api.github.com/users/non/events{/privacy}","received_events_url":"https://api.github.com/users/non/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":31,"created_at":"2016-09-10T20:59:39Z","updated_at":"2016-11-21T15:24:52Z","closed_at":null,"pull_request":{"url":"https://api.github.com/repos/rickynils/scalacheck/pulls/263","html_url":"https://github.com/rickynils/scalacheck/pull/263","diff_url":"https://github.com/rickynils/scalacheck/pull/263.diff","patch_url":"https://github.com/rickynils/scalacheck/pull/263.patch"},"body":"This commit adds an `initialSeed` parameter to the Parameter types\nthat Test and Gen use to control test execution. When set to `None`,\nthings behave as they usually do, but when set to `Some(seed)`, that\nseed will be used to start the execution.\n\nThis makes it easier to configure repeatable tests. In the future, you\ncould imagine ScalaCheck emitting which seed it started with during a\nfailing test, and providing an interface for re-running the failing\ntest with the same seed.\n\nAlso included are some tests to ensure generators are deterministic.\nWe can add more of these for different types of generators in the future\nas needed.\n\nReview by @rickynils and @sirthias.\n"},"comment":{"url":"https://api.github.com/repos/rickynils/scalacheck/issues/comments/261968067","html_url":"https://github.com/rickynils/scalacheck/pull/263#issuecomment-261968067","issue_url":"https://api.github.com/repos/rickynils/scalacheck/issues/263","id":261968067,"user":{"login":"rickynils","id":16779,"avatar_url":"https://avatars.githubusercontent.com/u/16779?v=3","gravatar_id":"","url":"https://api.github.com/users/rickynils","html_url":"https://github.com/rickynils","followers_url":"https://api.github.com/users/rickynils/followers","following_url":"https://api.github.com/users/rickynils/following{/other_user}","gists_url":"https://api.github.com/users/rickynils/gists{/gist_id}","starred_url":"https://api.github.com/users/rickynils/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/rickynils/subscriptions","organizations_url":"https://api.github.com/users/rickynils/orgs","repos_url":"https://api.github.com/users/rickynils/repos","events_url":"https://api.github.com/users/rickynils/events{/privacy}","received_events_url":"https://api.github.com/users/rickynils/received_events","type":"User","site_admin":false},"created_at":"2016-11-21T15:24:52Z","updated_at":"2016-11-21T15:24:52Z","body":"@non You are correct about shrinking. It is orthogonal to this. And yeah, we would lose something valuable we have now (finding the \"structure\" that falsifies a property). I have to think a bit deeper about it.\r\n\r\nI'll merge this, it'll make future merges easier."}}
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