PERF: distributed cache class to help sync caches between processes

spec/components/distributed_cache_spec.rb

@@ -0,0 +1,72 @@
+require 'spec_helper'
+require 'distributed_cache'
+
+describe DistributedCache do
+
+  def wait_for(&blk)
+    i = 0
+    result = false
+    while !result && i < 300
+      result = blk.call
+      i += 1
+      sleep 0.001
+    end
+
+    result.should == true
+  end
+
+  let! :cache1 do
+    DistributedCache.new("test")
+  end
+
+  let! :cache2 do
+    DistributedCache.new("test")
+  end
+
+  it 'allows coerces symbol keys to strings' do
+    cache1[:key] = "test"
+    cache1["key"].should == "test"
+
+    wait_for do
+      cache2[:key] == "test"
+    end
+    cache2["key"].should == "test"
+  end
+
+  it 'sets other caches' do
+    cache1["test"] = "world"
+    wait_for do
+      cache2["test"] == "world"
+    end
+  end
+
+  it 'deletes from other caches' do
+    cache1["foo"] = "bar"
+
+    wait_for do
+      cache2["foo"] == "bar"
+    end
+
+    cache1.delete("foo")
+    cache1["foo"].should == nil
+
+    wait_for do
+      cache2["foo"] == nil
+    end
+  end
+
+  it 'clears cache on request' do
+    cache1["foo"] = "bar"
+
+    wait_for do
+      cache2["foo"] == "bar"
+    end
+
+    cache1.clear
+    cache1["foo"].should == nil
+    wait_for do
+      cache2["boom"] == nil
+    end
+  end
+
+end