unique_index_spec.rb in zermelo-1.2.0

- old
+ new
@@ -1,6 +1,62 @@
 require 'spec_helper'
+require 'zermelo/records/redis'
 require 'zermelo/associations/unique_index'
 
-describe Zermelo::Associations::UniqueIndex, :redis => true do
+describe Zermelo::Associations::UniqueIndex do
 
-end
\ No newline at end of file
+  context 'redis', :redis => true do
+
+    let(:redis) { Zermelo.redis }
+
+    module ZermeloExamples
+      class RedisUniqueIndex
+        include Zermelo::Records::Redis
+        define_attributes :name => :string
+        validates :name, :presence => true
+        unique_index_by :name
+      end
+    end
+
+    it 'adds an entry to a hash indexing an attribute' do
+      example = ZermeloExamples::RedisUniqueIndex.new(:id => '1',
+        :name => 'John Smith')
+      expect(example).to be_valid
+      expect(example.save).to be true
+
+      expect(redis.exists('redis_unique_index::indices:by_name')).to be true
+      expect(redis.hgetall('redis_unique_index::indices:by_name')).to eq('string:John%20Smith' => '1')
+    end
+
+    it 'removes an entry from a hash indexing an attribute' do
+      example = ZermeloExamples::RedisUniqueIndex.new(:id => '1',
+        :name => 'John Smith')
+      example.save
+
+      example_2 = ZermeloExamples::RedisUniqueIndex.new(:id => '2',
+        :name => 'Roger Wilco')
+      example_2.save
+
+      expect(redis.hgetall('redis_unique_index::indices:by_name')).to eq('string:John%20Smith' => '1',
+        'string:Roger%20Wilco' => '2')
+
+      example.destroy
+
+      expect(redis.hgetall('redis_unique_index::indices:by_name')).to eq({'string:Roger%20Wilco' => '2'})
+    end
+
+    it 'changes an entry in a hash indexing an attribute' do
+      example = ZermeloExamples::RedisUniqueIndex.new(:id => '1',
+        :name => 'John Smith')
+      example.save
+
+      expect(redis.hgetall('redis_unique_index::indices:by_name')).to eq('string:John%20Smith' => '1')
+
+      example.name = 'Jane Jones'
+      example.save
+
+      expect(redis.hgetall('redis_unique_index::indices:by_name')).to eq('string:Jane%20Jones' => '1')
+    end
+
+  end
+
+end