![]() ![]() ![]() You can zoom in or out! See the navigation documentation.Left Heavy is particularly useful when there are a lot of function calls (e.g. There are several views available for the flamegraph.# Upload the JSON report to speedscope.appīelow are some useful tips to interpret and navigate the flamegraph: # There will be the name of the report displayed when the script ends. Stackprof gem is already installed with GitLab, and we also have a script available that generates the JSON report ( bin/rspec-stackprof). The gem generates a JSON report that we can upload to for an interactive visualization. Rspec-stackprof can be used to generate a flame graph that shows you where you test spend its time. Profiling: see where your test spend its time Using a headlessīrowser is much slower than parsing the HTML response from the app. Test requires JavaScript reactivity in the browser (e.g. We should reduce test dependencies, and avoidingĬapabilities also reduces the amount of set-up needed. :request_store which provides a request store to the examples.:clean_gitlab_redis_cache which provides a clean Redis cache to the examples.:js in feature specs, which runs a full JavaScript capable headless browser.We make it easy to add capabilities to our examples by annotating the example or Don’t request capabilities you don’t need Here you can find some information about tools and techniquesĪvailable to you to achieve that. We want thorough, correct,Īnd fast tests. Test performance is important to maintaining quality and velocity, and has aĭirect impact on CI build times and thus fixed costs. It’s important that we make an effort to write tests that are accurate GitLab has a massive test suite that, without parallelization, can take hours If the specs fail the check they must be fixed before than can run in random order. If the specs pass the check the script removes them from Scripts/rspec_check_order_dependence spec/models/project_spec.rb Use the GITLAB_TEST_EAGER_LOAD environment variable: If you need to enable eager loading when executing tests, Is eagerly loaded in CI/CD (when ENV.present?) to surface any potential loading issues.Isn’t eagerly loaded in the test environment.Or even 999 is brittle as these IDs could actually exist in the database in theĬontext of a CI run. When you need an ID/IID/access level that doesn’t actually exist. Use non_existing_record_id/ non_existing_record_iid/ non_existing_record_access_level.For empty test description blocks, use specify rather than it do if the test is self-explanatory.Use :aggregate_failures when there is more than one expectation in a test.Use focus: true to isolate parts of the specs you want to run.Use a Capybara matcher beforehand (such as find('.js-foo')) to ensure the element actually exists. When using evaluate_script("$('.js-foo').testSomething()") (or execute_script) which acts on a given element,.On before and after hooks, prefer it scoped to :context over :all.Don’t supply the :each argument to hooks because it’s the default.Avoid using expect_any_instance_of or allow_any_instance_of (see.Don’t assert against the absolute value of a sequence-generated attribute (see.Use rather than hard coding 'localhost'.Try to follow the Four-Phase Test pattern, using newlines.Try to match the ordering of tests to the ordering in the class.Use context to test branching logic ( RSpec/AvoidConditionalStatements Rubocop Cop - MR).method to describe class methods and #method to describe instance Use a single, top-level scribe ClassName block.When using spring and guard together, use SPRING=1 bundle exec guard instead to make use of spring. We can find some helpful heuristics documented in the Handbook in the When designing our tests, take time to review known test heuristics to inform They concisely address many of the common ways bugs Test heuristics can help solve this problem. The right tests, but then cover all the important ways the test may fail. When implementing tests for a feature, we must think about developing When implementing a feature, we think about developing the right capabilities the right way. It’s important we consider the design of our tests Testing at GitLab is a first class citizen, not an afterthought. Test environment logging Testing best practices Test Design. ![]() Test Snowplow context against the schema.Search for Capybara::DSL# when using profiling.See what the feature test is doing in the UI.Profiling: see where your test spend its time.Don’t request capabilities you don’t need. ![]()
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