I really don't know how to ask question to Google about this, so I excuse me that it is naive.
Our team is developing SPA application in ReactJS. We also do back-end programming for NodeJS. Our project recently got more e2e tests. They are written using webdriver.io packages. Everything works as expected but circa 30 tests run about 50 minutes. It is too long to pause developer work and force him to run tests.
We came with the idea that now when we have so many tests, we need to run them on separate computer (other than a developer's laptop, further I call it e2e-laptop).
So I programmed a bash script and installed Ubuntu on a e2e-laptop. My idea is, that developer who wants to run e2e test logs in on e2e-laptop with ssh, runs specified script with arguments (eg: --rev= specific git revision the tests should run on, --email= where to send Allure report) and logs out. After tests are done he gets Allure report in his mailbox.
This all sounds to me OK, but not very well. It works - it is like a dirty MVP. But what I really would like to give my team is the web browser based UI that gives the features my script has. I can imagine this software is hosted on e2e-laptop, every developer can open its webpage address in his local browser. Then after authorization, there are options: run all specs, run chosen specs, send report and more. It would be the best if that software could also allow simultaneous running of tests commissioned by multiple developers.
What software I need?
You need a continuous integration tool. https://stackify.com/top-continuous-integration-tools/
I recommend Jenkins.
I would first try to run your selenium tests headless in a docker container on your laptop. Once you are able to do that, use that same configuration in your docker container running in Bitbucket pipelines. It could actually be the same container and the same scripts. Then, developers can just make a branch and work with the tests on that branch. If only a certain subset of tests need to run, then the developer can make the necessary changes on his or her local branch to run those tests and push it up to Bitbucket. This should help with the configuration https://github.com/SeleniumHQ/docker-selenium.
Related
I have a React frontend and a Node backend, I've made several E2E tests with Cypress for the frontend and run them locally. I love how end to end testing allows me to catch errors in the frontend as well as on the backend! so I'd like to have a way to run them automatically when sending a PR.
I'm using bitbucket pipelines, and I've configured it to run the npm test command which works perfectly to run my unit tests, but what I still don't understand is how to be able to run my Cypress tests automatically, because I'd need to have access to the backend repository from my pipeline that runs on the frontend repo.
What I've tried
I've read the documentation and played with the example repo, but I still don't understand how could I automate running my tests, on the example both backend and frontend are on the same repository.
I'm sorry if this is a vague question, I just don't seem to get if this is even possible with bitbucket pipelines, if it's not, what other tool could help me run my Cypress test in a similar way that I do locally? (running both backend and frontend).
I've really tried to search for an answer to this, maybe it's too obvious and I'm just missing something but I don't seem to find anything on the internet about this, any help will be very appreciated!
When your frontend and backend are versioned in different repositories, then you have to check out at least one of the two repositories (e.g. the other for which the pipeline is not currently being executed) during the pipeline execution to get access to the code and thus have the possibility to start frontend and backend together locally to run your tests.
This question has also already been asked and answered here:
https://community.atlassian.com/t5/Bitbucket-questions/Access-multiple-Bitbucket-repositories-from-a-single-Pipeline/qaq-p/1783419
Should end to end tests be run at build time (running the application on the build server), or after deployment? I have not yet found a solid answer for which one is the standard.
Edit
I mean after deploying either to QA/SIT/UAT etc... vs. just running it on a build server without fully deploying it.
The whole point of having a build server is to create a single build of the current source code, of which you run tests and make sure that things work before you deploy them. I don't know why anyone would want to run tests after then have been deployed. What happens if you find a bug? You going to roll back the deployment? Always test before deployment.
Ideally, you would have a build environment that mimics your production environment that will allow you to run tests in a "deployed" environment. It's the reason that you have a development/staging/production servers.
I have a Grails application that, when run on my local Windows machine, passes all tests in my integration test suite. When I deploy my app to my Test environment in Jenkins, and run the same suite of tests, a few of them are failing for inexplicable reasons.
I think the Test box is Linux but I am not sure. I am using mocks in my Grails app and am wondering if that may be causing confusion in values returned.
Has anyone any ideas?
EDIT:
My app translates an XML document into a new XML document. One of the elements in the returned XML document is supposed to be PRODUCT but comes back as product.
The place where this element is set is from an in-memory database that is populated from a DB script. It is the same DB script that is used locally and on my Test environment.
The app does not read any config files that would be different in different environments.
Like the others have stated the really isn't enough information here to help give a solid answer. A couple of things that I would look at are:
If it's integration tests that are failing maybe you've got some "bad tests" that are dependent on certain data that does not exist in your test environment that Jenkins is running against.
There is no guaranteed consistency for test execution order across machines/platforms. So it's entirely possible that the tests pass for you locally just because they run in a certain order and leave things mocked out or data setup from one test that is needed in another. I wrote a plugin a while ago (http://grails.org/plugin/random-test-order) to help identify these problems. I haven't updated the plugin since Grails 1.3.7 so it may not work with 2.0+ grails apps.
If the steps above don't identify the problem knowing any differences in how you are invoking the tests on Jenkins vs. Local would be beneficial. For example if you specify a specific grails environment (http://grails.org/doc/latest/guide/conf.html#environments) when running on Jenkins and what the differences are between that and the grails environment used on your local.
While I only have a github repository that I'm pushing to (alone), I often forget to run tests, or forget to commit all relevant files, or rely on objects residing on my local machine. These result in build breaks, but they are only detected by Travis-CI after the erroneous commit. I know TeamCity has a pre-commit testing facility (which relies on the IDE in use), but my question is with regards to the current use of continuous integration as opposed to any one implementation. My question is
Why aren't changes tested on a clean build machine - such as those which Travis-CI uses for post-commit tesing - before those changes are committed?
Such a process would mean that there would never be build breaks, meaning that a fresh environment could pull any commit from the repository and be sure of its success; as such, I don't understand why CI isn't implemented using post-commit testing.
I preface my answer with the details that I am running on GitHub and Jenkins.
Why should a developer have to run all tests locally before committing. Especially in the Git paradigm that is not a requirement. What if, for instance, it takes 15-30 minutes to run all of the tests. Do you really want your developers or you personally sitting around waiting for the tests to run locally before your commit and push your changes?
Our process usually goes like this:
Make changes in local branch.
Run any new tests that you have created.
Commit changes to local branch.
Push local changes remotely to GitHub and create pull request.
Have build process pick up changes and run unit tests.
If tests fail, then fix them in local branch and push them locally.
Get changes code reviewed in pull request.
After approval and all checks have passed, push to master.
Rerun all unit tests.
Push artifact to repository.
Push changes to an environment (ie DEV, QA) and run any integration/functional tests that rely on a full environment.
If you have a cloud then you can push your changes to a new node and only after all environment tests pass reroute the VIP to the new node(s)
Repeat 11 until you have pushed through all pre-prod environments.
If you are practicing continuous deployment then push your changes all the way to PROD if all testing, checks, etc pass.
My point is that it is not a good use of a developers time to run tests locally impeding their progress when you can off-load that work onto a Continuous Integration server and be notified of issues that you need to fix later. Also, some tests simply can't be run until you commit them and deploy the artifact to an environment. If an environment is broken because you don't have a cloud and maybe you only have one server, then fix it locally and push the changes quickly to stabilize the environment.
You can run tests locally if you have to, but this should not be the norm.
As to the multiple developer issue, open source projects have been dealing with that for a long time now. They use forks in GitHub to allow contributors the chance to suggest new fixes and functionality, but this is not really that different from a developer on the team creating a local branch, pushing it remotely, and getting team buy-in via code review before pushing. If someone pushes changes that break your changes then you try to fix them yourself first and then ask for their help. You should be following the principle of "merging early and often" as well as merging in updates from master to your branch periodically.
The assumption that if you write code and it compiles and tests are passed locally, no builds could be broken is wrong. It is only so, if you are the only developer working on that code.
But let's say I change the interface you are using, my code will compile and pass tests
as long as I don't get your updated code That uses my interface.
Your code will compile and pass tests as long as you don't get my update in the interface.
And when we both check in our code, the build machine explodes...
So CI is a process which basically say: put your changes in as soon as possible
and test them in the CI server (it should be of course compiled and tested locally first).
If all developers follow those rules,
the build will still break, but we will know about it sooner rather than later.
The CI server is not the same as the version control system. The CI server, too, checks the code out of the repository. And therefore the code has already been committed when it gets tested on the CI server.
More extensive tests may be run periodically, rather than at time of checking in, on whatever is the current version of the code at the time of testing. Think of multi-platform tests or load tests.
Generally, of course, you'll unit test your code on your development machine before checking it in.
I'm trying to set up a an automated build process and together with some coded ui tests. I think I've managed to set up pretty much everything up and working, the last missing piece of the puzzle being able to run the coded UI tests on the test agent machine.
So basically, I have a CI build that also runs unit tests, and if successful, deploys the binaries on a shared location. My goal is to then trigger the other process that runs the coded UI tests. I got the coded UI tests working on my dev computer by hard coding the location to start the application from. However, I am at a loss on how to configure this to work on the test agent. I used the LabDefaultTemplate11 build process template, and configured it to use the latest build completed by the CI build. But how do I specify what executable the test agent should use?
At first I thought it was enough to specify the build definition and build configuration, but then I realized there might be multiple executables, so the test agent would have to guess. Doesn't sound too good.
So in the end I guess my question is, how to (robustly) add the startup of the application to my coded UI tests in a manner that works both on my local dev machine, and the machine running the test agent?
Oh and I'm using TFS 2012 (with VS 2012 premium).
The lab template expects you to create Test Cases in MTM then associated coded ui tests to them in visual studio by opening the test case, selecting the associated automation tab and clicking the "..." button. You need to have the project with the coded ui tests open at the time.
Then in the lab build you select one or more Test Suite (from MTM) that contains the Test Cases for those coded uit tests.
When you make your tests in the first place make sure you're running your program/website in a way that the test agent will be able to also - eg use a standard installation directory or domain.
It is best practice to open the program being tested at the start of every test and close it at the end. However you could get around that by executing the program as part of the deploy instructions in the lab build.