Update self-test parameters

.travis.yml

@@ -1,4 +1,5 @@
-language: c
+sudo: required
+language: ruby c
 
 matrix:
  include:
@@ -7,16 +8,19 @@ matrix:
       osx_image: xcode7.3
     - os: linux
       dist: trusty
+      rvm: "2.4"
       compiler: gcc
     - os: linux
-      dist: trusty
+      dist: xenial
+      rvm: "2.7"
       compiler: clang
 
 before_install:
-  - if [ "$TRAVIS_OS_NAME" == "osx" ]; then rvm install 2.3 && rvm use 2.3 && ruby -v; fi
   - if [ "$TRAVIS_OS_NAME" == "linux" ]; then sudo apt-get install --assume-yes --quiet gcc-multilib; fi
+
 install:
   - gem install rspec
   - gem install rubocop -v 0.57.2
+
 script:
   - cd test && rake ci

test/.rubocop.yml

@@ -22,6 +22,12 @@ Style/NumericPredicate:
   Enabled: false
 Style/MultilineBlockChain:
   Enabled: false
+Style/Alias:
+  Enabled: false
+Style/EvalWithLocation:
+  Enabled: false
+Style/MixinUsage:
+  Enabled: false
 
 # These are also places we diverge... but we will likely comply down the road
 Style/IfUnlessModifier: