Rubocop output

after.txt

$ rubocop 
Inspecting 41 files
............C.................C..........

Offenses:

test/api/v1/routes/exercises_test.rb:93:20: C: Always use raise to signal exceptions.
    error = proc { fail Exception.new("failing hard") }
                   ^^^^
api/services/exercism_io.rb:53:7: C: Always use raise to signal exceptions.
      fail Xapi::ApiError.new(data['error']) if data['error']
      ^^^^

41 files inspected, 2 offenses detected

before.txt

$ rubocop  
Inspecting 41 files
............CC.........C......C..........

Offenses:

test/api/v1/routes/exercises_test.rb:93:20: C: Always use raise to signal exceptions.
    error = proc { fail Exception.new("failing hard") }
                   ^^^^
test/api/v1/routes/exercises_filtering_test.rb:20:30: C: Do not use spaces inside percent literal delimiters.
    assert_returns_tracks %w( fruit )
                             ^
test/api/v1/routes/exercises_filtering_test.rb:20:36: C: Do not use spaces inside percent literal delimiters.
    assert_returns_tracks %w( fruit )
                                   ^
test/api/v1/routes/exercises_filtering_test.rb:26:30: C: Do not use spaces inside percent literal delimiters.
    assert_returns_tracks %w( fake jewels )
                             ^
test/api/v1/routes/exercises_filtering_test.rb:26:42: C: Do not use spaces inside percent literal delimiters.
    assert_returns_tracks %w( fake jewels )
                                         ^
test/api/v1/routes/exercises_filtering_test.rb:34:30: C: Do not use spaces inside percent literal delimiters.
    assert_returns_tracks %w( fake fruit jewels )
                             ^
test/api/v1/routes/exercises_filtering_test.rb:34:48: C: Do not use spaces inside percent literal delimiters.
    assert_returns_tracks %w( fake fruit jewels )
                                               ^
test/api/v1/routes/exercises_filtering_test.rb:42:30: C: Do not use spaces inside percent literal delimiters.
    assert_returns_tracks %w( fake fruit jewels )
                             ^
test/api/v1/routes/exercises_filtering_test.rb:42:48: C: Do not use spaces inside percent literal delimiters.
    assert_returns_tracks %w( fake fruit jewels )
                                               ^
test/api/v1/routes/exercises_filtering_test.rb:48:30: C: Do not use spaces inside percent literal delimiters.
    assert_returns_tracks %w( fake )
                             ^
test/api/v1/routes/exercises_filtering_test.rb:48:35: C: Do not use spaces inside percent literal delimiters.
    assert_returns_tracks %w( fake )
                                  ^
api/v1/routes/docs.rb:5:26: C: Unnecessary spacing detected.
        pg :docs, locals:  { track: find_track(id) }
                         ^
api/services/exercism_io.rb:53:7: C: Always use raise to signal exceptions.
      fail Xapi::ApiError.new(data['error']) if data['error']
      ^^^^

41 files inspected, 13 offenses detected