fix missing require in null update processor

Author: jsonbailey

lib/ldclient-rb/impl/datasource/null_processor.rb

@@ -1,4 +1,5 @@
 require 'concurrent'
+require 'ldclient-rb/interfaces'
 
 module LaunchDarkly
   module Impl

spec/impl/datasource/null_processor_spec.rb

@@ -0,0 +1,57 @@
+require "spec_helper"
+require "ldclient-rb/impl/datasource/null_processor"
+
+module LaunchDarkly
+  module Impl
+    module DataSource
+      describe NullUpdateProcessor do
+        subject { NullUpdateProcessor.new }
+
+        describe "#initialize" do
+          it "creates a ready event" do
+            expect(subject.instance_variable_get(:@ready)).to be_a(Concurrent::Event)
+          end
+        end
+
+        describe "#start" do
+          it "returns a ready event that is already set" do
+            ready_event = subject.start
+            expect(ready_event).to be_a(Concurrent::Event)
+            expect(ready_event.set?).to be true
+          end
+
+          it "returns the same event on multiple calls" do
+            first_event = subject.start
+            second_event = subject.start
+
+            expect(second_event).to be(first_event)
+          end
+        end
+
+        describe "#stop" do
+          it "does nothing and does not raise an error" do
+            expect { subject.stop }.not_to raise_error
+          end
+        end
+
+        describe "#initialized?" do
+          it "always returns true" do
+            expect(subject.initialized?).to be true
+          end
+
+          it "returns true even before start is called" do
+            processor = NullUpdateProcessor.new
+            expect(processor.initialized?).to be true
+          end
+        end
+
+        describe "DataSource interface" do
+          it "includes the DataSource module" do
+            expect(subject.class.ancestors).to include(LaunchDarkly::Interfaces::DataSource)
+          end
+        end
+      end
+    end
+  end
+end
+