assertEquals is a static method. Since you can’t use static methods without importing them explicitly in a static way, you have to use either: import org.junit.Assert; … Assert.assertEquals(…) or: import static org.junit.Assert.assertEquals; … assertEquals(…) For @Test it’s a little bit different. @Test is an annotation as you can see by the @. Annotations are imported …
I honestly don’t see the difference between BDD and TDD. That’s because there isn’t any. I mean, both are just tests if what is expected happens. That’s wrong. BDD and TDD have absolutely nothing whatsoever to do with testing. None. Nada. Zilch. Zip. Nix. Not in the slightest. Unfortunately, TDD has the word “test” in …
Peter Marklund has an example gist of testing a migration here: https://gist.github.com/700194 (in rspec). Note migrations have changed since his example to use instance methods instead of class methods. Here’s a summary: Create a migration as usual Create a file to put your migration test in. Suggestions: test/unit/import_legacy_devices_migration_test.rb or spec/migrations/import_legacy_devices_migration_spec.rb NOTE: you probably need to …
Spec is short for “Specification” as @DavinTryon suggested above. Specification in terms of a test refer to the technical details of a given feature or application which must be fulfilled. The best way to think of this is as the technical specifications for a given unit of code to pass successfully. https://en.wikipedia.org/wiki/Unit_testing
I assume you are talking about Mockito syntax. From my point of view these are just different styles. The first is the normal Mockito syntax and the second just tries to fit nicer into BDD style tests – I really like the second version because it reads so nicely in BDD tests.
For me appending — –config=jest.config.js worked. So the whole string react-scripts test — –config jest.config.js in your case.
I like the following: “scripts”: { “test”: “npm run test-node && npm run test-browser”, “test-node”: “mocha -R spec ./test/node/index.js”, “test-browser”: “mocha-phantomjs ./test/browser/index.html”} The && only runs the second if the first passes, and you can run either separately if you want. Note that npm always uses the relative mocha (inside node_modules), not the global one, …
Needing to mock out methods when testing is very common and there are lots of tools to help you with it in Python. The danger with “monkey patching” classes like this is that if you don’t undo it afterwards then the class has been modified for all other uses throughout your tests. My library mock, …
Yes, there are languages designed for writing provably correct software. Some are even used in industry. Spark Ada is probably the most prominent example. I’ve talked to a few people at Praxis Critical Systems Limited who used it for code running on Boings (for engine monitoring) and it seems quite nice. (Here is a great …
Use allow_any_instance_of: describe (“.create”) do it ‘returns error when…’ do allow_any_instance_of(User).to receive(:save).and_return(false) post :create, user: {name: “foo”, surname: “bar”}, format: :json expect(response.status).to eq(422) end end