Convert test/unit/model_test.rb to rspec

- Test against ruby 2.3.4 (was 2.3.1)
- Troubleshooting time comparison in test
- Test should not care about array order

.rubocop_todo.yml

@@ -24,6 +24,7 @@ RSpec/FilePath:
 RSpec/InstanceVariable:
   Exclude:
     - spec/paper_trail/associations_spec.rb
+    - spec/paper_trail/model_spec.rb
 
 RSpec/MessageSpies:
   Enabled: false
@@ -34,6 +35,7 @@ RSpec/NamedSubject:
 RSpec/NestedGroups:
   Exclude:
     - spec/paper_trail/associations_spec.rb
+    - spec/paper_trail/model_spec.rb
 
 Security/YAMLLoad:
   Enabled: false

.travis.yml

@@ -1,7 +1,7 @@
 language: ruby
 cache: bundler
 rvm:
-  - 2.3.1
+  - 2.3.4
   - 2.1.10
 env:
   global:

spec/paper_trail/version_spec.rb

@@ -31,7 +31,9 @@ module PaperTrail
         animal = Animal.create
         animal.update_attributes(name: "Animal")
         animal.destroy
-        expect(described_class.not_creates.pluck(:event)).to eq(%w[update destroy])
+        expect(
+          described_class.not_creates.pluck(:event)
+        ).to match_array(%w[update destroy])
       end
     end
 

test/test_helper.rb

@@ -53,38 +53,6 @@ module ActiveSupport
       DatabaseCleaner.clean if using_mysql?
       Thread.current[:paper_trail] = nil
     end
-
-    private
-
-    def assert_attributes_equal(expected, actual)
-      if using_mysql?
-        expected = expected.dup
-        actual = actual.dup
-
-        # Adjust timestamps for missing fractional seconds precision.
-        %w[created_at updated_at].each do |timestamp|
-          expected[timestamp] = expected[timestamp].change(usec: 0)
-          actual[timestamp] = actual[timestamp].change(usec: 0)
-        end
-      end
-
-      assert_equal expected, actual
-    end
-
-    def assert_changes_equal(expected, actual)
-      if using_mysql?
-        expected = expected.dup
-        actual = actual.dup
-
-        # Adjust timestamps for missing fractional seconds precision.
-        %w[created_at updated_at].each do |timestamp|
-          expected[timestamp][1] = expected[timestamp][1].change(usec: 0)
-          actual[timestamp][1] = actual[timestamp][1].change(usec: 0)
-        end
-      end
-
-      assert_equal expected, actual
-    end
   end
 end
 

test/time_travel_helper.rb

@@ -1 +0,0 @@
-require "timecop"