.travis.yml in rakuten_web_service-1.8.0 vs .travis.yml in rakuten_web_service-1.9.0

@@ -4,10 +4,14 @@
   - 2.3.6
   - 2.4.3
   - 2.5.0
   - ruby-head
 
+env:
+  - INTEGRATION=yes
+  - INTEGRATION=no
+
 group: travis_lts
 
 cache: bundler
 
 before_install:
@@ -20,9 +24,18 @@
   - bundle exec codeclimate-test-reporter
 
 matrix:
   allow_failures:
   - rvm: ruby-head
+  exclude:
+  - rvm: 2.2.9
+    env: INTEGRATION=yes
+  - rvm: 2.3.6
+    env: INTEGRATION=yes
+  - rvm: 2.4.3
+    env: INTEGRATION=yes
+  - rvm: ruby-head
+    env: INTEGRATION=yes
 
 addons:
   code_climate:
     repo_token:
       secure: Z23O936LoCDGJ/OyYsLzxTUI+CMWyrfeN1PtQdCNMdF4vxwaCsAHr3ulTdudGhKMrVZGENSEK6fq0Xal3o3oPaH9aGM9sUQ/ibRM+J94Lx6Owu4okTsIHoEy4vFeW+A/62aiwxPcoi7PFrvC8FOfaZg+b+vvYAQcitVe6qwBHiE=