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Yes, and smell tests actually. Okay, Mr. Kristo. My timers and the only person who stands between you and... Sorry, but I won't take a lot of time as possible.
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Well, my name is Vladimir and you know about it, so let's keep it in. I came from Moscow, this riddle there eventually.
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It's the same. Well, my Twitter handle is @vrb. It's not so easy to remember, so start out there. Check this out.
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Maybe you can find something new for you. I'm going to talk about something even more interesting—beautiful and it's all illegal.
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Mainly martial, so actually we are kind of most of us and tuning tried twelve and four big ones, small ones, United States, wherever. And that's not the interesting part. It responds to this—we do sort of stuff, we're trying to authorize source.
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And this particular talk is going to be about source projects we have been working on since, oh, well, in them as far as related to testing.
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Instead of it's complicated for the cost being last time the days, I'll try to make it as simple as possible. That's not with this Atari.
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And another question I hope I know the answer beforehand, but let's do the right tests at least once.
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This spin and try and school writing tests is one of the key features of the community.
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Recently, tests were made a part of it and everything.
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And if you think that your tests could be faster and you are sacrificing objects, I hope you can come back and try some techniques I am going to talk about.
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And make your tests a little bit faster. Let me tell the story.
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We have a project called AnyCable. It doesn't matter what it's related to and it started back in 2016.
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Imagine a bottleneck situation: we spent a lot of time, actually not about the test itself, but about the real environment.
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I had to spend about half an hour finishing all the stuff, just with winter's security checks or whatever, and that amount of time itself is not a good thing.
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It becomes worse when you are working with a team of developers, and one is working on its own feature and pushing frequently, causing the builds to fail.
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You have to wait for other builds to finish before you can finally release the feature, and sometimes it takes hours.
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You start in the evening, wake up in the morning, and the original build is still ongoing.
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I want to mention that we induced realization everywhere.
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Especially one container to test environment.
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As we learned recently from one of the keynotes, critics will become important with the solution: parallel testing.
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Don't care about anything—this is how to improve the speed of your test projects.
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We started working on the project, shipping new features. What will happen next? We started to write more tests.
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Raymond called this. We need more tests and the number of tests increased.
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So, we wouldn't do any work without tests. We would end up with the same story: one build running but containers.
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What I say is that while just increasing the number of containers, we didn't want to spend so much money on testing infrastructure.
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That's another way out, so it’s all about solving the problem of increasing resources.
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We set out to find out why our tests were slow and tried to make them faster.
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After some investigation and a little bit of work, we discovered this testing model, and three times more tests reduced the time spent on testing.
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Listen to the math. It's pretty simple, but if you don't want to just trust me, we increased our test runtime by a factor of four.
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It’s actually not so much about the specifics, more the methodology. And first, I would like to tell you how to get here.
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I’m going to introduce you to a tool I call Despereaux.
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I suggest Despereaux as a collection of tools that allows you to diagnose and fix your slow tests.
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It really contains two parts, two groups of things: that's a test program and a lot of stuff inside.
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It's a toolbox; it's not a fun project, but a collection of multiple techniques I've used to improve test speed.
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So, from one hand, we help forefathers to identify bottlenecks, and on the other hand, we offer recipes, some small tweaks.
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These allow you to easily pass your tests and make them faster without completely refactoring.
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Let's start with some simple things like talking about profilers.
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The first group of file profilers build on existing solutions in the Ruby world.
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We got some broken Chrome and the new Arc's our be spike.
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What's interesting about the center of the pipeline is that they provide side profile loading code.
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However, they do not take into account the triad of probiotic tests, so they're not considering this context.
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What we can do is provide execution details of your Ruby example without caring about your interests—
