Add specs for attributes comparison (based on latest Equalizer gem wo…

…rking version)

spec/unit/virtus/attribute/comparison_spec.rb

@@ -0,0 +1,23 @@
+require 'spec_helper'
+
+describe Virtus::Attribute, '#== (defined by including Virtus::Equalizer)' do
+  let(:attribute) { described_class.build(String, :name => :name) }
+
+  # Currently that's the way it works and it happens because default_value objects
+  # don't have equalizer, resulting in  attributes object mismatch.
+  # This behavior (and a spec) will need a change in future.
+  it 'returns false when attributes have same type and options' do
+    equal_attribute = described_class.build(String, :name => :name)
+    expect(attribute == equal_attribute).to be_falsey
+  end
+
+  it 'returns false when attributes have different type' do
+    different_attribute = described_class.build(Integer, :name => :name)
+    expect(attribute == different_attribute).to be_falsey
+  end
+
+  it 'returns false when attributes have different options' do
+    different_attribute = described_class.build(Integer, :name => :name_two)
+    expect(attribute == different_attribute).to be_falsey
+  end
+end