Fix: Load rspec/core in Regular Mode when using RSpec split by test examples feature

[ArturT]

problem

When you run Knapsack Pro for RSpec in Regular Mode, and you enable RSpec split by test examples feature, and you forget to set RAILS_ENV=test thenRSpec::Core::Parser is not loaded.

... other envs
export KNAPSACK_PRO_RSPEC_SPLIT_BY_TEST_EXAMPLES=true
bundle exec rake "knapsack_pro:rspec[--format d]"

It crashes with:

rake aborted!
NameError: uninitialized constant RSpec::Core::Parser

        ::RSpec::Core::Parser.parse(cli_args)

reported issue

#180

solution

Require rspec/core when running in Regular Mode. Thanks to that you don't need to remember to explicitly set RAILS_ENV=test.

It's easier to try Knapsack Pro in development (locally).

[shadre]

👍