{"action":"created","issue":{"url":"https://api.github.com/repos/matplotlib/matplotlib/issues/11839","repository_url":"https://api.github.com/repos/matplotlib/matplotlib","labels_url":"https://api.github.com/repos/matplotlib/matplotlib/issues/11839/labels{/name}","comments_url":"https://api.github.com/repos/matplotlib/matplotlib/issues/11839/comments","events_url":"https://api.github.com/repos/matplotlib/matplotlib/issues/11839/events","html_url":"https://github.com/matplotlib/matplotlib/issues/11839","id":349362693,"node_id":"MDU6SXNzdWUzNDkzNjI2OTM=","number":11839,"title":"image compare animations for testing","user":{"login":"t-makaro","id":18018386,"node_id":"MDQ6VXNlcjE4MDE4Mzg2","avatar_url":"https://avatars0.githubusercontent.com/u/18018386?v=4","gravatar_id":"","url":"https://api.github.com/users/t-makaro","html_url":"https://github.com/t-makaro","followers_url":"https://api.github.com/users/t-makaro/followers","following_url":"https://api.github.com/users/t-makaro/following{/other_user}","gists_url":"https://api.github.com/users/t-makaro/gists{/gist_id}","starred_url":"https://api.github.com/users/t-makaro/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/t-makaro/subscriptions","organizations_url":"https://api.github.com/users/t-makaro/orgs","repos_url":"https://api.github.com/users/t-makaro/repos","events_url":"https://api.github.com/users/t-makaro/events{/privacy}","received_events_url":"https://api.github.com/users/t-makaro/received_events","type":"User","site_admin":false},"labels":[{"id":151683879,"node_id":"MDU6TGFiZWwxNTE2ODM4Nzk=","url":"https://api.github.com/repos/matplotlib/matplotlib/labels/Testing","name":"Testing","color":"009800","default":false}],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":{"url":"https://api.github.com/repos/matplotlib/matplotlib/milestones/35","html_url":"https://github.com/matplotlib/matplotlib/milestone/35","labels_url":"https://api.github.com/repos/matplotlib/matplotlib/milestones/35/labels","id":3382328,"node_id":"MDk6TWlsZXN0b25lMzM4MjMyOA==","number":35,"title":"v3.1","description":"","creator":{"login":"tacaswell","id":199813,"node_id":"MDQ6VXNlcjE5OTgxMw==","avatar_url":"https://avatars3.githubusercontent.com/u/199813?v=4","gravatar_id":"","url":"https://api.github.com/users/tacaswell","html_url":"https://github.com/tacaswell","followers_url":"https://api.github.com/users/tacaswell/followers","following_url":"https://api.github.com/users/tacaswell/following{/other_user}","gists_url":"https://api.github.com/users/tacaswell/gists{/gist_id}","starred_url":"https://api.github.com/users/tacaswell/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/tacaswell/subscriptions","organizations_url":"https://api.github.com/users/tacaswell/orgs","repos_url":"https://api.github.com/users/tacaswell/repos","events_url":"https://api.github.com/users/tacaswell/events{/privacy}","received_events_url":"https://api.github.com/users/tacaswell/received_events","type":"User","site_admin":false},"open_issues":148,"closed_issues":4,"state":"open","created_at":"2018-05-29T02:12:40Z","updated_at":"2018-08-11T20:37:10Z","due_on":null,"closed_at":null},"comments":0,"created_at":"2018-08-10T03:21:59Z","updated_at":"2018-08-11T20:37:39Z","closed_at":null,"author_association":"NONE","body":"I'm currently trying to create pytests for animations over in [animatplot](https://github.com/t-makaro/animatplot/issues/8). Now, I know that people here have talked about writing image comparison tests for animations, so I thought I would open an issue here to track progress, and to share what I am doing. \r\n\r\nNow my needs for animatplot are fairly different, but essentially I'm going to wrap around ```matplotlib.testing.compare.compare_images```, and use a custom file writer (which you can see [here](https://github.com/t-makaro/animatplot/blob/154e90263ab05595d02746cce807da13a71274c4/animatplot/testing/comparison.py)) to output a set of images. This file writer was inspired by @tacaswell's [stackoverflow answer](https://stackoverflow.com/questions/41230286/matplotlib-animation-write-to-png-files-without-third-party-module/51778313#51778313).\r\n\r\nOnce I get stuff working over there, I will be willing to help create these types of tests here."},"comment":{"url":"https://api.github.com/repos/matplotlib/matplotlib/issues/comments/412300090","html_url":"https://github.com/matplotlib/matplotlib/issues/11839#issuecomment-412300090","issue_url":"https://api.github.com/repos/matplotlib/matplotlib/issues/11839","id":412300090,"node_id":"MDEyOklzc3VlQ29tbWVudDQxMjMwMDA5MA==","user":{"login":"tacaswell","id":199813,"node_id":"MDQ6VXNlcjE5OTgxMw==","avatar_url":"https://avatars3.githubusercontent.com/u/199813?v=4","gravatar_id":"","url":"https://api.github.com/users/tacaswell","html_url":"https://github.com/tacaswell","followers_url":"https://api.github.com/users/tacaswell/followers","following_url":"https://api.github.com/users/tacaswell/following{/other_user}","gists_url":"https://api.github.com/users/tacaswell/gists{/gist_id}","starred_url":"https://api.github.com/users/tacaswell/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/tacaswell/subscriptions","organizations_url":"https://api.github.com/users/tacaswell/orgs","repos_url":"https://api.github.com/users/tacaswell/repos","events_url":"https://api.github.com/users/tacaswell/events{/privacy}","received_events_url":"https://api.github.com/users/tacaswell/received_events","type":"User","site_admin":false},"created_at":"2018-08-11T20:37:39Z","updated_at":"2018-08-11T20:37:39Z","author_association":"MEMBER","body":"https://github.com/matplotlib/pytest-mpl might also be interested in this feature."}}
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