Ohai lives - first meaningful commit

4 files changed, 214 insertions, 0 deletions

diff --git a/features/development.feature b/features/development.feature
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+Feature: Development processes of newgem itself (rake tasks)
+
+  As a Newgem maintainer or contributor
+  I want rake tasks to maintain and release the gem
+  So that I can spend time on the tests and code, and not excessive time on maintenance processes
+    
+  Scenario: Generate RubyGem
+    Given this project is active project folder
+    And 'pkg' folder is deleted
+    When task 'rake gem' is invoked
+    Then folder 'pkg' is created
+    And file with name matching 'pkg/*.gem' is created else you should run "rake manifest" to fix this
+    And gem spec key 'rdoc_options' contains /--mainREADME.rdoc/
diff --git a/features/ohai.feature b/features/ohai.feature
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+++ b/features/ohai.feature
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+Feature: Collects data about a system
+  In order to understand the state of my system	
+  As a Systems Administrator
+  I want to have a program that detects information for me
+
+	Scenario: Collect data about the system via a single plugin
+	  Given a plugin called 'platform'
+	  When I run ohai
+	  Then I should have a 'platform' of 'kitties'
+	
+	Scenario: Collect data about the system via a directory of plugins
+		Given a plugin directory at './plugins'
+		When I run ohai
+		Then I should have a 'platform' of 'kitties'
+		 And I should have a 'foghorn' of 'leghorn'
+		
+	Scenario: Collect data about the system via an external script
+		Given a plugin called 'perl'
+		When I run ohai
+		Then I should have a 'perl_major_version' of '5'
+		
\ No newline at end of file
diff --git a/features/steps/common.rb b/features/steps/common.rb
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index 00000000..91cd2611
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+++ b/features/steps/common.rb
@@ -0,0 +1,174 @@
+def in_project_folder(&block)
+  project_folder = @active_project_folder || @tmp_root
+  FileUtils.chdir(project_folder, &block)
+end
+
+def in_home_folder(&block)
+  FileUtils.chdir(@home_path, &block)
+end
+
+Given %r{^a safe folder} do
+  FileUtils.rm_rf   @tmp_root = File.dirname(__FILE__) + "/../../tmp"
+  FileUtils.mkdir_p @tmp_root
+  FileUtils.mkdir_p @home_path = File.expand_path(File.join(@tmp_root, "home"))
+  @lib_path = File.expand_path(File.dirname(__FILE__) + '/../../lib')
+  Given "env variable $HOME set to '#{@home_path}'"
+end
+
+Given %r{^this project is active project folder} do
+  Given "a safe folder"
+  @active_project_folder = File.expand_path(File.dirname(__FILE__) + "/../..")
+end
+
+Given %r{^env variable \$([\w_]+) set to '(.*)'} do |env_var, value|
+  ENV[env_var] = value
+end
+
+def force_local_lib_override(project_name = @project_name)
+  rakefile = File.read(File.join(project_name, 'Rakefile'))
+  File.open(File.join(project_name, 'Rakefile'), "w+") do |f|
+    f << "$:.unshift('#{@lib_path}')\n"
+    f << rakefile
+  end
+end
+
+def setup_active_project_folder project_name
+  @active_project_folder = File.join(@tmp_root, project_name)
+  @project_name = project_name
+end
+
+Given %r{'(.*)' folder is deleted} do |folder|
+  in_project_folder do
+    FileUtils.rm_rf folder
+  end
+end
+
+When %r{^'(.*)' generator is invoked with arguments '(.*)'$} do |generator, arguments|
+  FileUtils.chdir(@active_project_folder) do
+    if Object.const_defined?("APP_ROOT")
+      APP_ROOT.replace(FileUtils.pwd)
+    else 
+      APP_ROOT = FileUtils.pwd
+    end
+    run_generator(generator, arguments.split(' '), SOURCES)
+  end
+end
+
+When %r{run executable '(.*)' with arguments '(.*)'} do |executable, arguments|
+  @stdout = File.expand_path(File.join(@tmp_root, "executable.out"))
+  FileUtils.chdir(@active_project_folder) do
+    system "ruby #{executable} #{arguments} > #{@stdout}"
+  end
+end
+
+When %r{^task 'rake (.*)' is invoked$} do |task|
+  @stdout = File.expand_path(File.join(@tmp_root, "tests.out"))
+  FileUtils.chdir(@active_project_folder) do
+    system "rake #{task} --trace > #{@stdout} 2> #{@stdout}"
+  end
+end
+
+Then %r{^folder '(.*)' is created} do |folder|
+  in_project_folder do
+    File.exists?(folder).should be_true
+  end
+end
+
+Then %r{^file '(.*)' (is|is not) created} do |file, is|
+  in_project_folder do
+    File.exists?(file).should(is == 'is' ? be_true : be_false)
+  end
+end
+
+Then %r{^file with name matching '(.*)' is created} do |pattern|
+  in_project_folder do
+    Dir[pattern].should_not be_empty
+  end
+end
+
+Then %r{gem file '(.*)' and generated file '(.*)' should be the same} do |gem_file, project_file|
+  File.exists?(gem_file).should be_true
+  File.exists?(project_file).should be_true
+  gem_file_contents = File.read(File.dirname(__FILE__) + "/../../#{gem_file}")
+  project_file_contents = File.read(File.join(@active_project_folder, project_file))
+  project_file_contents.should == gem_file_contents
+end
+
+Then %r{^output same as contents of '(.*)'$} do |file|
+  expected_output = File.read(File.join(File.dirname(__FILE__) + "/../expected_outputs", file))
+  actual_output = File.read(File.dirname(__FILE__) + "/../../tmp/#{@stdout}")
+  actual_output.should == expected_output
+end
+
+Then %r{^(does|does not) invoke generator '(.*)'$} do |does_invoke, generator|
+  actual_output = File.read(File.dirname(__FILE__) + "/../../tmp/#{@stdout}")
+  does_invoke == "does" ?
+    actual_output.should(match(/dependency\s+#{generator}/)) :
+    actual_output.should_not(match(/dependency\s+#{generator}/))
+end
+
+Then %r{help options '(.*)' and '(.*)' are displayed} do |opt1, opt2|
+  actual_output = File.read(@stdout)
+  actual_output.should match(/#{opt1}/)
+  actual_output.should match(/#{opt2}/)
+end
+
+Then %r{^output (does|does not) match \/(.*)\/} do |does, regex|
+  actual_output = File.read(@stdout)
+  (does == 'does') ?
+    actual_output.should(match(/#{regex}/)) :
+    actual_output.should_not(match(/#{regex}/)) 
+end
+
+Then %r{^contents of file '(.*)' (does|does not) match \/(.*)\/} do |file, does, regex|
+  in_project_folder do
+    actual_output = File.read(file)
+    (does == 'does') ?
+      actual_output.should(match(/#{regex}/)) :
+      actual_output.should_not(match(/#{regex}/))
+  end
+end
+
+Then %r{^all (\d+) tests pass} do |expected_test_count|
+  expected = %r{^#{expected_test_count} tests, \d+ assertions, 0 failures, 0 errors}
+  actual_output = File.read(@stdout)
+  actual_output.should match(expected)
+end
+
+Then %r{^all (\d+) examples pass} do |expected_test_count|
+  expected = %r{^#{expected_test_count} examples?, 0 failures}
+  actual_output = File.read(@stdout)
+  actual_output.should match(expected)
+end
+
+Then %r{^yaml file '(.*)' contains (\{.*\})} do |file, yaml|
+  in_project_folder do
+    yaml = eval yaml
+    YAML.load(File.read(file)).should == yaml
+  end
+end
+
+Then %r{^Rakefile can display tasks successfully} do
+  @stdout = File.expand_path(File.join(@tmp_root, "rakefile.out"))
+  FileUtils.chdir(@active_project_folder) do
+    system "rake -T > #{@stdout} 2> #{@stdout}"
+  end
+  actual_output = File.read(@stdout)
+  actual_output.should match(/^rake\s+\w+\s+#\s.*/)
+end
+
+Then %r{^task 'rake (.*)' is executed successfully} do |task|
+  @stdout.should_not be_nil
+  actual_output = File.read(@stdout)
+  actual_output.should_not match(/^Don't know how to build task '#{task}'/)
+  actual_output.should_not match(/Error/i)
+end
+
+Then %r{^gem spec key '(.*)' contains \/(.*)\/} do |key, regex|
+  in_project_folder do
+    gem_file = Dir["pkg/*.gem"].first
+    gem_spec = Gem::Specification.from_yaml(`gem spec #{gem_file}`)
+    spec_value = gem_spec.send(key.to_sym)
+    spec_value.to_s.should match(/#{regex}/)
+  end
+end
diff --git a/features/steps/env.rb b/features/steps/env.rb
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index 00000000..64d866ce
--- /dev/null
+++ b/features/steps/env.rb
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+require File.dirname(__FILE__) + "/../../lib/ohai"
+
+gem 'cucumber'
+require 'cucumber'
+gem 'rspec'
+require 'spec'