Fix specs in JRuby.

Author: Kim Burgestrand

Gemfile

@@ -1,4 +1,14 @@
-source 'https://rubygems.org'
+source "https://rubygems.org"
 
-# Specify your gem's dependencies in serial.gemspec
 gemspec
+
+group :development do
+  platform :ruby do
+    gem "sqlite3"
+  end
+
+  platform :jruby do
+    gem "jdbc-sqlite3"
+    gem "activerecord-jdbcsqlite3-adapter"
+  end
+end

serial.gemspec

@@ -10,7 +10,7 @@ Gem::Specification.new do |spec|
   spec.email         = ["jonas@elabs.se", "kim@elabs.se"]
   spec.license       = "MIT"
 
-  spec.summary       = %q{Plain old Ruby for generating simple data structures from object graphs.}
+  spec.summary       = %q{Plain old Ruby for generating primitive data structures from object graphs.}
   spec.homepage      = "https://github.com/elabs/serial"
 
   spec.files         = `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
@@ -23,5 +23,4 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency "rspec", "~> 3.2"
   spec.add_development_dependency "yard", "~> 0.8"
   spec.add_development_dependency "activerecord", "~> 4.0"
-  spec.add_development_dependency "sqlite3", "~> 1.0"
 end

spec/serial/rails_helpers_spec.rb

@@ -1,6 +1,12 @@
 require "active_record"
 
-ActiveRecord::Base.establish_connection adapter: "sqlite3", database: ":memory:"
+adapter = if RUBY_ENGINE == "jruby"
+  "jdbcsqlite3"
+else
+  "sqlite3"
+end
+
+ActiveRecord::Base.establish_connection(adapter: adapter, database: ":memory:")
 ActiveRecord::Schema.define do
   self.verbose = false
   create_table :fake_people, :force => true do |t|