#
# Author:: Adam Jacob (<adam@chef.io>)
# Author:: Lamont Granquist (<lamont@chef.io>)
# Copyright:: Copyright 2008-2016, 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 "stringio"
require "spec_helper"
require "etc"
require "ostruct"
require "support/shared/unit/provider/file"

describe Chef::Provider::Template do
  let(:node) { double("Chef::Node") }
  let(:events) { double("Chef::Events").as_null_object } # mock all the methods
  let(:logger) { double("Mixlib::Log::Child").as_null_object }
  let(:run_context) { double("Chef::RunContext", :node => node, :events => events, :logger => logger) }
  let(:enclosing_directory) do
    canonicalize_path(File.expand_path(File.join(CHEF_SPEC_DATA, "templates")))
  end
  let(:resource_path) do
    canonicalize_path(File.expand_path(File.join(enclosing_directory, "seattle.txt")))
  end

  # Subject

  let(:provider) do
    provider = described_class.new(resource, run_context)
    allow(provider).to receive(:content).and_return(content)
    provider
  end

  let(:resource) do
    resource = Chef::Resource::Template.new("seattle", @run_context)
    resource.path(resource_path)
    resource
  end

  let(:content) do
    content = double("Chef::Provider::File::Content::Template", :template_location => "/foo/bar/baz")
    allow(File).to receive(:exists?).with("/foo/bar/baz").and_return(true)
    content
  end

  it_behaves_like Chef::Provider::File

  context "when creating the template" do

    let(:enclosing_directory) do
      canonicalize_path(File.expand_path(File.join(CHEF_SPEC_DATA, "templates")))
    end
    let(:resource_path) do
      canonicalize_path(File.expand_path(File.join(enclosing_directory, "seattle.txt")))
    end

    # Subject

    let(:provider) do
      provider = described_class.new(resource, run_context)
      allow(provider).to receive(:content).and_return(content)
      provider
    end

    it "stops executing when the local template source can't be found" do
      setup_normal_file
      allow(content).to receive(:template_location).and_return("/baz/bar/foo")
      allow(File).to receive(:exists?).with("/baz/bar/foo").and_return(false)
      expect { provider.run_action(:create) }.to raise_error Chef::Mixin::WhyRun::ResourceRequirements::Assertion::AssertionFailure
    end

  end

  it_behaves_like "a file provider with source field"
end