allow cucumber 4.x and run tests for each major version of cucumber

.travis.yml

@@ -1,5 +1,6 @@
 language: ruby
 dist: xenial
+sudo: false
 cache: bundler
 rvm:
   - 2.5.1
@@ -12,7 +13,10 @@ matrix:
     - rvm: ruby-head
   fast_finish: true
 
-script:
-  - gem install bundler
-  - bundle exec rake spec
-  - bundle exec rake cucumber
+script: bundle exec rspec -f progress --force-color --color --tty
+
+gemfile:
+  - gemfiles/cucumber1.gemfile
+  - gemfiles/cucumber2.gemfile
+  - gemfiles/cucumber3.gemfile
+  - gemfiles/cucumber4.gemfile

gemfiles/cucumber1.gemfile

@@ -0,0 +1,7 @@
+source 'https://rubygems.org'
+
+# Specify your gem's dependencies in venuenext_payments.gemspec
+gemspec path: '../'
+
+gem 'coveralls', require: false
+gem 'cucumber', '~> 1.0'

gemfiles/cucumber2.gemfile

@@ -0,0 +1,7 @@
+source 'https://rubygems.org'
+
+# Specify your gem's dependencies in venuenext_payments.gemspec
+gemspec path: '../'
+
+gem 'coveralls', require: false
+gem 'cucumber', '~> 2.0'

gemfiles/cucumber3.gemfile

@@ -0,0 +1,7 @@
+source 'https://rubygems.org'
+
+# Specify your gem's dependencies in venuenext_payments.gemspec
+gemspec path: '../'
+
+gem 'coveralls', require: false
+gem 'cucumber', '~> 3.0'

gemfiles/cucumber4.gemfile

@@ -0,0 +1,7 @@
+source 'https://rubygems.org'
+
+# Specify your gem's dependencies in venuenext_payments.gemspec
+gemspec path: '../'
+
+gem 'coveralls', require: false
+gem 'cucumber', '~> 4.0'

pickle.gemspec

@@ -19,7 +19,7 @@ Gem::Specification.new do |s|
   s.test_files    = `git ls-files -- {test,spec,features}/*`.split("\n")
   s.require_paths = ["lib"]
 
-  s.add_dependency "cucumber", ">=0.8", "< 4.0"
+  s.add_dependency "cucumber", ">=0.8", "< 5.0"
   s.add_dependency "rake"
 
   s.add_development_dependency "rack"