How to run tests on a mountable engine

Question

I just created a mountable engine. The test directory looks somewhat like this:

engine_name
 -test
  - dummy
  - test_helper.rb
  - models
    -engine_name
      -- user_test.rb
  etc

1. I attempted to call 'rspec' -> didn't work. Error message stated it couldn't find the folder 'spec'
2. I then called 'rspec test' -> it found the directory, but didn't find the test.
3. Found that rspec looks for *_spec.rb files, so I renamed user_test.rb to user_spec.rb
4. rspec then found the file, but it said it couldn't find test_helper.rb (since that was required by user_spec.rb).

I have a feeling that this engine's test directory is not designed for rspec. What's the best way to test an engine?

Thanks!

Answer 1

Since you are using rspec, you should use the directory spec instead of test.

The test directory is the default for test unit.

If you run rspec and you have a spec directory it will grab the tests from there.

You need a right spec_helper.rb (test_helper.rb is for test unit). You can see the example of spec_helper.rb in the template from rspec-rails repository.

Then, you should require the spec_helper in the user_spec.rb and just run rspec in the terminal.