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path: root/spec/unit/chef_fs/file_system_spec.rb
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#
# Author:: John Keiser (<jkeiser@opscode.com>)
# Copyright:: Copyright (c) 2012 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 'chef/chef_fs/file_system'
require 'chef/chef_fs/file_pattern'

describe Chef::ChefFS::FileSystem do
  include FileSystemSupport

  context 'with empty filesystem' do
    let(:fs) { memory_fs('', {}) }

    context 'list' do
      it '/' do
        list_should_yield_paths(fs, '/', '/')
      end
      it '/a' do
        list_should_yield_paths(fs, '/a', '/a')
      end
      it '/a/b' do
        list_should_yield_paths(fs, '/a/b', '/a/b')
      end
      it '/*' do
        list_should_yield_paths(fs, '/*', '/')
      end
    end

    context 'resolve_path' do
      it '/' do
        Chef::ChefFS::FileSystem.resolve_path(fs, '/').path.should == '/'
      end
      it 'nonexistent /a' do
        Chef::ChefFS::FileSystem.resolve_path(fs, '/a').path.should == '/a'
      end
      it 'nonexistent /a/b' do
        Chef::ChefFS::FileSystem.resolve_path(fs, '/a/b').path.should == '/a/b'
      end
    end
  end

  context 'with a populated filesystem' do
    let(:fs) {
      memory_fs('', {
        :a => {
          :aa => {
            :c => '',
            :zz => ''
          },
          :ab => {
            :c => '',
          }
        },
        :x => '',
        :y => {}
      })
    }
    context 'list' do
      it '/**' do
        list_should_yield_paths(fs, '/**', '/', '/a', '/x', '/y', '/a/aa', '/a/aa/c', '/a/aa/zz', '/a/ab', '/a/ab/c')
      end
      it '/' do
        list_should_yield_paths(fs, '/', '/')
      end
      it '/*' do
        list_should_yield_paths(fs, '/*', '/', '/a', '/x', '/y')
      end
      it '/*/*' do
        list_should_yield_paths(fs, '/*/*', '/a/aa', '/a/ab')
      end
      it '/*/*/*' do
        list_should_yield_paths(fs, '/*/*/*', '/a/aa/c', '/a/aa/zz', '/a/ab/c')
      end
      it '/*/*/?' do
        list_should_yield_paths(fs, '/*/*/?', '/a/aa/c', '/a/ab/c')
      end
      it '/a/*/c' do
        list_should_yield_paths(fs, '/a/*/c', '/a/aa/c', '/a/ab/c')
      end
      it '/**b/c' do
        list_should_yield_paths(fs, '/**b/c', '/a/ab/c')
      end
      it '/a/ab/c' do
        no_blocking_calls_allowed
        list_should_yield_paths(fs, '/a/ab/c', '/a/ab/c')
      end
      it 'nonexistent /a/ab/blah' do
        no_blocking_calls_allowed
        list_should_yield_paths(fs, '/a/ab/blah', '/a/ab/blah')
      end
      it 'nonexistent /a/ab/blah/bjork' do
        no_blocking_calls_allowed
        list_should_yield_paths(fs, '/a/ab/blah/bjork', '/a/ab/blah/bjork')
      end
    end

    context 'resolve_path' do
      before(:each) do
        no_blocking_calls_allowed
      end
      it 'resolves /' do
        Chef::ChefFS::FileSystem.resolve_path(fs, '/').path.should == '/'
      end
      it 'resolves /x' do
        Chef::ChefFS::FileSystem.resolve_path(fs, '/x').path.should == '/x'
      end
      it 'resolves /a' do
        Chef::ChefFS::FileSystem.resolve_path(fs, '/a').path.should == '/a'
      end
      it 'resolves /a/aa' do
        Chef::ChefFS::FileSystem.resolve_path(fs, '/a/aa').path.should == '/a/aa'
      end
      it 'resolves /a/aa/zz' do
        Chef::ChefFS::FileSystem.resolve_path(fs, '/a/aa/zz').path.should == '/a/aa/zz'
      end
      it 'resolves nonexistent /q/x/w' do
        Chef::ChefFS::FileSystem.resolve_path(fs, '/q/x/w').path.should == '/q/x/w'
      end
    end

    context 'empty?' do
      it 'is not empty /' do
        Chef::ChefFS::FileSystem.resolve_path(fs, '/').empty?.should be false
      end
      it 'is empty /y' do
        Chef::ChefFS::FileSystem.resolve_path(fs, '/y').empty?.should be true
      end
      it 'is not a directory and can\'t be tested /x' do
        lambda { Chef::ChefFS::FileSystem.resolve_path(fs, '/x').empty? }.should raise_error(NoMethodError)
      end
    end
  end
end