Add worker integration test.

spec/integration/worker_spec.rb

@@ -0,0 +1,61 @@
+require 'spec_helper'
+require 'redis'
+require 'yaml'
+require 'qless/worker'
+require 'qless'
+
+class WorkerIntegrationJob
+  def self.perform(job)
+    File.open(job['file'], "w") { |f| f.write("done") }
+  end
+end
+
+describe "Worker integration", :integration do
+  def start_worker
+    unless @child = fork
+      with_env_vars 'REDIS_URL' => redis_url, 'QUEUE' => 'main', 'INTERVAL' => '0.0001' do
+        Qless::Worker.start
+        exit! # once the work ends, exit hte worker process
+      end
+    end
+  end
+
+  def output_file(i)
+    File.join(temp_dir, "job.out.#{Time.now.to_i}.#{i}")
+  end
+
+  def wait_for_job_completion
+    20.times do |i|
+      sleep 0.1
+      return if `ps -p #{@child}` =~ /Waiting/i
+    end
+
+    raise "Didn't complete: #{`ps -p #{@child}`}"
+  end
+
+  let(:temp_dir) { "./spec/tmp" }
+
+  before do
+    FileUtils.rm_rf temp_dir
+    FileUtils.mkdir_p temp_dir
+  end
+
+  it 'can start a worker and then shut it down' do
+    files = 3.times.map { |i| output_file(i) }
+    files.select { |f| File.exist?(f) }.should eq([])
+
+    start_worker
+
+    queue = client.queue("main")
+    files.each do |f|
+      queue.put(WorkerIntegrationJob, "file" => f)
+    end
+
+    wait_for_job_completion
+    Process.kill("QUIT", @child) # send shutdown signal
+
+    contents = files.map { |f| File.read(f) }
+    contents.should eq(['done'] * files.size)
+  end
+end
+