* Remove trailing spaces
* Migrate show_source tests to integration tests
Because show_source tests often need to define class and/or methods,
they can easily leak state to other tests. Changing them to integration
tests will ensure that they are run in a clean environment.
* Fix NoMethodError caused by SourceFinder#method_target
3c39f13397
(https://github.com/ruby/irb/pull/684)
After this change, `RubyLex` will not interact with `Context` directly
in any way. This decoupling has a few benefits:
- It makes `RubyLex` easier to test as it no longer has a dependency on
`Context`. We can see this from the removal of `build_context` from
`test_ruby_lex.rb`.
- It will make `RubyLex` easier to understand as it will not be affected
by state changes in `Context` objects.
- It allows `RubyLex` to be used in places where `Context` is not available.
d5b262a076
(https://github.com/ruby/irb/pull/658)
* Decouple `edit` command from `show_source`
2 commands should not depend on each other. If `edit` command also needs
to find a source, the source finding logic should be extracted into a
separate class.
* Return nil if is not an actual file path
* Refactor SourceFinder
9790517a0c
