```ruby
#
# Copyright:: Copyright (c) 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::Resource::MacosUserDefaults do

  let(:resource) { Chef::Resource::MacosUserDefaults.new("foo") }

  it "has a resource name of :macos_userdefaults" do
    expect(resource.resource_name).to eql(:macos_userdefaults)
  end

  it "sets the default action as :write" do
    expect(resource.action).to eql([:write])
  end

  it "supports :write action" do
    expect { resource.action :write }.not_to raise_error
  end
end
```

Test the default property values
user
```ruby
#
# Copyright:: Copyright (c) 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::Resource::MacosUserDefaults do

  let(:resource) { Chef::Resource::MacosUserDefaults.new("foo") }

  it "has a resource name of :macos_userdefaults" do
    expect(resource.resource_name).to eql(:macos_userdefaults)
  end

  it "the domain property defaults to NSGlobalDomain" do
    expect(resource.domain).to eql("NSGlobalDomain")
  end

  it "the host property defaults to nil" do
    expect(resource.host).to be_nil
  end

  it "the sudo property defaults to false" do
    expect(resource.sudo).to be false
  end

  it "sets the default action as :write" do
    expect(resource.action).to eql([:write])
  end

  it "supports :write action" do
    expect { resource.action :write }.not_to raise_error
  end
end
```
assistant