Add Chef::GuardInterpreter.for_resource method to reduce duplication

1 files changed, 41 insertions, 0 deletions

diff --git a/spec/unit/guard_interpreter_spec.rb b/spec/unit/guard_interpreter_spec.rb
new file mode 100644
index 0000000000..a7fe064948
--- /dev/null
+++ b/spec/unit/guard_interpreter_spec.rb
@@ -0,0 +1,41 @@
+#
+# Author:: Steven Danna (steve@chef.io)
+# Copyright:: Copyright (c) 2015 Chef Software, 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'
+
+describe Chef::GuardInterpreter do
+  describe "#for_resource" do
+    let (:resource) { Chef::Resource.new("foo")}
+
+    it "returns a DefaultGuardInterpreter if the resource has guard_interpreter set to :default" do
+      resource.guard_interpreter :default
+      interpreter = Chef::GuardInterpreter.for_resource(resource, "", {})
+      expect(interpreter.class).to eq(Chef::GuardInterpreter::DefaultGuardInterpreter)
+    end
+
+    it "returns a ResourceGuardInterpreter if the resource has guard_interpreter set to !:default" do
+      resource.guard_interpreter :foobar
+      # Mock the resource guard interpreter to avoid having to set up a lot of state
+      # currently we are only testing that we get the correct class of object back
+      rgi = double("Chef::GuardInterpreter::ResourceGuardInterpreter")
+      allow(Chef::GuardInterpreter::ResourceGuardInterpreter).to receive(:new).and_return(rgi)
+      interpreter = Chef::GuardInterpreter.for_resource(resource, "", {})
+      expect(interpreter).to eq(rgi)
+    end
+  end
+end