CHEF-4423: extract cookbook upload threaded queue into utility class

1 files changed, 51 insertions, 0 deletions

diff --git a/spec/unit/util/threaded_job_queue_spec.rb b/spec/unit/util/threaded_job_queue_spec.rb
new file mode 100644
index 0000000000..a199937639
--- /dev/null
+++ b/spec/unit/util/threaded_job_queue_spec.rb
@@ -0,0 +1,51 @@
+# Copyright:: Copyright (c) 2014 Opscode, Inc.
+# License:: Apache License, Version 2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+require 'spec_helper'
+
+class WorkerThreadError < StandardError
+end
+
+describe Chef::Util::ThreadedJobQueue do
+  let(:queue) { Chef::Util::ThreadedJobQueue.new }
+
+  it "should pass mutex to jobs with an arity of 1" do
+    job = double()
+    job.should_receive(:arity).at_least(:once).and_return(1)
+    job.should_receive(:call).exactly(5).times.with(an_instance_of(Mutex))
+
+    5.times { queue << job }
+    queue.process
+  end
+
+  it "should pass nothing to jobs with an arity of 0" do
+    job = double()
+    job.should_receive(:arity).at_least(:once).and_return(0)
+    job.should_receive(:call).exactly(5).times.with(no_args)
+
+    5.times { queue << job }
+    queue.process
+  end
+
+  it "should use specified number of threads" do
+    Thread.should_receive(:new).exactly(7).times.and_call_original
+    queue.process(7)
+  end
+
+  it "should propagate exceptions to the main thread" do
+    queue << lambda { raise WorkerThreadError }
+    lambda { queue.process }.should raise_error(WorkerThreadError)
+  end
+end