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diff --git a/spec/functional/resource/bash_spec.rb b/spec/functional/resource/bash_spec.rb
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+++ b/spec/functional/resource/bash_spec.rb
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+#
+# Author:: Serdar Sutay (<serdar@opscode.com>)
+# 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'
+require 'functional/resource/base'
+
+describe Chef::Resource::Bash, :unix_only do
+  let(:code) { "echo hello" }
+  let(:resource) {
+    resource = Chef::Resource::Bash.new("foo_resource", run_context)
+    resource.code(code)
+    resource
+  }
+
+  describe "when setting the command attribute" do
+    let (:command) { 'wizard racket' }
+
+    # in Chef-12 the `command` attribute is largely useless, but does set the identity attribute
+    # so that notifications need to target the value of the command.  it will not run the `command`
+    # and if it is given without a code block then it does nothing and always succeeds.
+    describe "in Chef-12", :chef_lt_13_only do
+      it "gets the commmand attribute from the name" do
+        expect(resource.command).to eql("foo_resource")
+      end
+
+      it "sets the resource identity to the command name" do
+        resource.command command
+        expect(resource.identity).to eql(command)
+      end
+
+      it "warns when the code is not present and a useless `command` is present" do
+        expect(Chef::Log).to receive(:warn).with(/coding error/)
+        expect(Chef::Log).to receive(:warn).with(/deprecated/)
+        resource.code nil
+        resource.command command
+        expect { resource.run_action(:run) }.not_to raise_error
+      end
+
+      describe "when the code is not present" do
+        let(:code) { nil }
+        it "warns" do
+          expect(Chef::Log).to receive(:warn)
+          expect { resource.run_action(:run) }.not_to raise_error
+        end
+      end
+    end
+
+    # in Chef-13 the `command` attribute needs to be for internal use only
+    describe "in Chef-13", :chef_gte_13_only do
+      it "should raise an exception when trying to set the command" do
+        expect { resource.command command }.to raise_error # FIXME: add a real error in Chef-13
+      end
+
+      it "should initialize the command to nil" do
+        expect(resource.command).to be_nil
+      end
+
+      describe "when the code is not present" do
+        let(:code) { nil }
+        it "raises an exception" do
+          expect { resource.run_action(:run) }.to raise_error # FIXME: add a real error in Chef-13
+          expect { resource.run_action(:run) }.not_to raise_error
+        end
+      end
+    end
+  end
+
+  it "times out when a timeout is set on the resource" do
+    resource.code 'sleep 600'
+    resource.timeout 0.1
+    expect { resource.run_action(:run) }.to raise_error(Mixlib::ShellOut::CommandTimeout)
+  end
+end