RSpec isolated environment not isolated enough?

[L2G]

I am noticing some spec failures happen because my home directory's .rubocop.yml file is apparently overriding settings that are assumed by the specs.

For example, if my .rubocop.yml file specifies a line length of 90, then specs that expect lines longer than 79 or 80 characters to raise an offense will fail.

This is on a Windows 7 system running Ruby 1.9.3p392, so perhaps it's platform-specific. (I'm working on some other spec failures I've found with Windows, but this one has me stumped.)

[L2G]

Here's a sample failure where my ~/.rubocop.yml file is overriding expectations in the specs:

Failures:

  1) Rubocop::CLI can report in clang style
     Failure/Error: expect($stdout.string)

       expected: "example1.rb:2:2: C: Surrounding space missing for operator '='.\nx= 0 \n ^\nexample1.rb:2:5: C: Trailing whitespace detected.\nx= 0 \n    ^\nexample1.rb:3:80: C: Line is too long. [85/79]\n#####################################################################################\n                                                                               ^^^^^^\nexample1.rb:4:2: C: Trailing whitespace detected.\ny \n ^\nexample2.rb:2:1: C: Tab detected.\n\tx = 0\n^\n\n2 files inspected, 5 offences detected\n"
            got: "example1.rb:2:2: C: Surrounding space missing for operator '='.\nx= 0 \n ^\nexample1.rb:2:5: C: Trailing whitespace detected.\nx= 0 \n    ^\nexample1.rb:4:2: C: Trailing whitespace detected.\ny \n ^\nexample2.rb:2:1: C: Tab detected.\n\tx = 0\n^\n\n2 files inspected, 4 offences detected\n"

       (compared using ==)

       Diff:
       @@ -4,9 +4,6 @@
        example1.rb:2:5: C: Trailing whitespace detected.
        x= 0 
            ^
       -example1.rb:3:80: C: Line is too long. [85/79]
       -#####################################################################################
       -                                                                               ^^^^^^
        example1.rb:4:2: C: Trailing whitespace detected.
        y 
         ^
       @@ -14,5 +11,5 @@
            x = 0
        ^

       -2 files inspected, 5 offences detected
       +2 files inspected, 4 offences detected
     # ./spec/rubocop/cli_spec.rb:250:in `block (2 levels) in <module:Rubocop>'
     # ./spec/support/isolated_environment.rb:20:in `block (4 levels) in <top (required)>'
     # ./spec/support/isolated_environment.rb:19:in `chdir'
     # ./spec/support/isolated_environment.rb:19:in `block (3 levels) in <top (required)>'
     # ./spec/support/isolated_environment.rb:8:in `block (2 levels) in <top (required)>'

[jonas054]

I don't get the exact same problems on Linux but I do find that the "isolated environment not isolated enough" when I put a .rubocop.yml in ~ or /tmp. There are failing specs for Rubocop::CLI and Rubocop::Config.configuration_file_for when I run.

[bbatsov]

Yep, I noticed the same problem today.

[bbatsov]

@jonas054 Any progress here?

[jonas054]

Not yet, but I'll start looking shortly.