Restoring https://github.com/opscode/chef/pull/1921 to master - somehow it got deleted from the git log

1 files changed, 251 insertions, 0 deletions

diff --git a/spec/unit/provider/package/homebrew_spec.rb b/spec/unit/provider/package/homebrew_spec.rb
new file mode 100644
index 0000000000..9f105c13b8
--- /dev/null
+++ b/spec/unit/provider/package/homebrew_spec.rb
@@ -0,0 +1,251 @@
+#
+# Author:: Joshua Timberman (<joshua@getchef.com>)
+# Copyright (c) 2014, Chef Software, Inc. <legal@getchef.com>
+#
+# 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::Provider::Package::Homebrew do
+  let(:node) { Chef::Node.new }
+  let(:events) { double('Chef::Events').as_null_object }
+  let(:run_context) { double('Chef::RunContext', node: node, events: events) }
+  let(:new_resource) { Chef::Resource::HomebrewPackage.new('emacs') }
+  let(:current_resource) { Chef::Resource::HomebrewPackage.new('emacs')}
+
+  let(:provider) do
+    Chef::Provider::Package::Homebrew.new(new_resource, run_context)
+  end
+
+  let(:uninstalled_brew_info) do
+    {
+      'name' => 'emacs',
+      'homepage' => 'http://www.gnu.org/software/emacs',
+      'versions' => {
+        'stable' => '24.3',
+        'bottle' => false,
+        'devel' => nil,
+        'head' => nil
+      },
+      'revision' => 0,
+      'installed' => [],
+      'linked_keg' => nil,
+      'keg_only' => nil,
+      'dependencies' => [],
+      'conflicts_with' => [],
+      'caveats' => nil,
+      'options' => []
+    }
+  end
+
+  let(:installed_brew_info) do
+    {
+      'name' => 'emacs',
+      'homepage' => 'http://www.gnu.org/software/emacs/',
+      'versions' => {
+        'stable' => '24.3',
+        'bottle' => false,
+        'devel' => nil,
+        'head' => 'HEAD'
+      },
+      'revision' => 0,
+      'installed' => [{ 'version' => '24.3' }],
+      'linked_keg' => '24.3',
+      'keg_only' => nil,
+      'dependencies' => [],
+      'conflicts_with' => [],
+      'caveats' => '',
+      'options' => []
+    }
+  end
+
+  let(:keg_only_brew_info) do
+    {
+      'name' => 'emacs-kegger',
+      'homepage' => 'http://www.gnu.org/software/emacs/',
+      'versions' => {
+        'stable' => '24.3-keggy',
+        'bottle' => false,
+        'devel' => nil,
+        'head' => 'HEAD'
+      },
+      'revision' => 0,
+      'installed' => [{ 'version' => '24.3-keggy' }],
+      'linked_keg' => nil,
+      'keg_only' => true,
+      'dependencies' => [],
+      'conflicts_with' => [],
+      'caveats' => '',
+      'options' => []
+    }
+  end
+
+  before(:each) do
+    node.default['homebrew']['owner'] = 'sid_vicious'
+    allow(Etc).to receive(:getpwnam).with('sid_vicious').and_return('/Users/sid_vicious')
+  end
+
+  describe 'load_current_resource' do
+    before(:each) do
+      allow(provider).to receive(:current_installed_version).and_return(nil)
+      allow(provider).to receive(:candidate_version).and_return('24.3')
+    end
+
+    it 'creates a current resource with the name of the new resource' do
+      provider.load_current_resource
+      expect(provider.current_resource).to be_a(Chef::Resource::Package)
+      expect(provider.current_resource.name).to eql('emacs')
+    end
+
+    it 'creates a current resource with the version if the package is installed' do
+      expect(provider).to receive(:current_installed_version).and_return('24.3')
+      provider.load_current_resource
+      expect(provider.current_resource.version).to eql('24.3')
+    end
+
+    it 'creates a current resource with a nil version if the package is not installed' do
+      provider.load_current_resource
+      expect(provider.current_resource.version).to be_nil
+    end
+
+    it 'sets a candidate version if one exists' do
+      provider.load_current_resource
+      expect(provider.candidate_version).to eql('24.3')
+    end
+  end
+
+  describe 'current_installed_version' do
+    it 'returns the latest version from brew info if the package is keg only' do
+      allow(provider).to receive(:brew_info).and_return(keg_only_brew_info)
+      expect(provider.current_installed_version).to eql('24.3-keggy')
+    end
+
+    it 'returns the linked keg version if the package is not keg only' do
+      allow(provider).to receive(:brew_info).and_return(installed_brew_info)
+      expect(provider.current_installed_version).to eql('24.3')
+    end
+
+    it 'returns nil if the package is not installed' do
+      allow(provider).to receive(:brew_info).and_return(uninstalled_brew_info)
+      expect(provider.current_installed_version).to be_nil
+    end
+  end
+
+  describe 'brew' do
+    it 'passes a single to the brew command and return stdout' do
+      allow(provider).to receive(:get_response_from_command).and_return('zombo')
+      expect(provider.brew).to eql('zombo')
+    end
+
+    it 'takes multiple arguments as an array' do
+      allow(provider).to receive(:get_response_from_command).and_return('homestarrunner')
+      expect(provider.brew('info', 'opts', 'bananas')).to eql('homestarrunner')
+    end
+  end
+
+  context 'when testing actions' do
+    before(:each) do
+      provider.current_resource = current_resource
+    end
+
+    describe 'install_package' do
+      before(:each) do
+        allow(provider).to receive(:candidate_version).and_return('24.3')
+      end
+
+      it 'installs the named package with brew install' do
+        allow(provider.new_resource).to receive(:version).and_return('24.3')
+        allow(provider.current_resource).to receive(:version).and_return(nil)
+        allow(provider).to receive(:brew_info).and_return(uninstalled_brew_info)
+        expect(provider).to receive(:get_response_from_command).with('brew install  emacs')
+        provider.install_package('emacs', '24.3')
+      end
+
+      it 'does not do anything if the package is installed' do
+        allow(provider.current_resource).to receive(:version).and_return('24.3')
+        allow(provider).to receive(:brew_info).and_return(installed_brew_info)
+        expect(provider).not_to receive(:get_response_from_command)
+        provider.install_package('emacs', '24.3')
+      end
+
+      it 'uses options to the brew command if specified' do
+        allow(provider.new_resource).to receive(:options).and_return('--cocoa')
+        allow(provider.current_resource).to receive(:version).and_return('24.3')
+        allow(provider).to receive(:get_response_from_command).with('brew install --cocoa emacs')
+        provider.install_package('emacs', '24.3')
+      end
+    end
+
+    describe 'upgrade_package' do
+      it 'uses brew upgrade to upgrade the package if it is installed' do
+        allow(provider.current_resource).to receive(:version).and_return('24')
+        allow(provider).to receive(:brew_info).and_return(installed_brew_info)
+        expect(provider).to receive(:get_response_from_command).with('brew upgrade  emacs')
+        provider.upgrade_package('emacs', '24.3')
+      end
+
+      it 'does not do anything if the package version is already installed' do
+        allow(provider.current_resource).to receive(:version).and_return('24.3')
+        allow(provider).to receive(:brew_info).and_return(installed_brew_info)
+        expect(provider).not_to receive(:get_response_from_command)
+        provider.install_package('emacs', '24.3')
+      end
+
+      it 'uses brew install to install the package if it is not installed' do
+        allow(provider.current_resource).to receive(:version).and_return(nil)
+        allow(provider).to receive(:brew_info).and_return(uninstalled_brew_info)
+        expect(provider).to receive(:get_response_from_command).with('brew install  emacs')
+        provider.upgrade_package('emacs', '24.3')
+      end
+
+      it 'uses options to the brew command if specified' do
+        allow(provider.current_resource).to receive(:version).and_return('24')
+        allow(provider).to receive(:brew_info).and_return(installed_brew_info)
+        allow(provider.new_resource).to receive(:options).and_return('--cocoa')
+        expect(provider).to receive(:get_response_from_command).with('brew upgrade --cocoa emacs')
+        provider.upgrade_package('emacs', '24.3')
+      end
+    end
+
+    describe 'remove_package' do
+      it 'uninstalls the package with brew uninstall' do
+        allow(provider.current_resource).to receive(:version).and_return('24.3')
+        allow(provider).to receive(:brew_info).and_return(installed_brew_info)
+        expect(provider).to receive(:get_response_from_command).with('brew uninstall  emacs')
+        provider.remove_package('emacs', '24.3')
+      end
+
+      it 'does not do anything if the package is not installed' do
+        allow(provider).to receive(:brew_info).and_return(uninstalled_brew_info)
+        expect(provider).not_to receive(:get_response_from_command)
+        provider.remove_package('emacs', '24.3')
+      end
+    end
+
+    describe 'purge_package' do
+      it 'uninstalls the package with brew uninstall --force' do
+        allow(provider.current_resource).to receive(:version).and_return('24.3')
+        allow(provider).to receive(:brew_info).and_return(installed_brew_info)
+        expect(provider).to receive(:get_response_from_command).with('brew uninstall  --force emacs')
+        provider.purge_package('emacs', '24.3')
+      end
+
+      it 'does not do anything if the package is not installed' do
+        allow(provider).to receive(:brew_info).and_return(uninstalled_brew_info)
+        expect(provider).not_to receive(:get_response_from_command)
+        provider.purge_package('emacs', '24.3')
+      end
+    end
+  end
+end