]> git.openstreetmap.org Git - rails.git/blobdiff - vendor/gems/rspec-1.1.2/lib/spec/runner/option_parser.rb
added RSpec and RSpec on Rails
[rails.git] / vendor / gems / rspec-1.1.2 / lib / spec / runner / option_parser.rb
diff --git a/vendor/gems/rspec-1.1.2/lib/spec/runner/option_parser.rb b/vendor/gems/rspec-1.1.2/lib/spec/runner/option_parser.rb
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+require 'optparse'
+require 'stringio'
+
+module Spec
+  module Runner
+    class OptionParser < ::OptionParser
+      class << self
+        def parse(args, err, out)
+          parser = new(err, out)
+          parser.parse(args)
+          parser.options
+        end
+      end
+
+      attr_reader :options
+
+      OPTIONS = {
+        :diff =>    ["-D", "--diff [FORMAT]", "Show diff of objects that are expected to be equal when they are not",
+                                             "Builtin formats: unified|u|context|c",
+                                             "You can also specify a custom differ class",
+                                             "(in which case you should also specify --require)"],
+        :colour =>  ["-c", "--colour", "--color", "Show coloured (red/green) output"],
+        :example => ["-e", "--example [NAME|FILE_NAME]",  "Execute example(s) with matching name(s). If the argument is",
+                                                          "the path to an existing file (typically generated by a previous",
+                                                          "run using --format failing_examples:file.txt), then the examples",
+                                                          "on each line of thatfile will be executed. If the file is empty,",
+                                                          "all examples will be run (as if --example was not specified).",
+                                                          " ",
+                                                          "If the argument is not an existing file, then it is treated as",
+                                                          "an example name directly, causing RSpec to run just the example",
+                                                          "matching that name"],
+        :specification => ["-s", "--specification [NAME]", "DEPRECATED - use -e instead", "(This will be removed when autotest works with -e)"],
+        :line => ["-l", "--line LINE_NUMBER", Integer, "Execute behaviout or specification at given line.",
+                                                       "(does not work for dynamically generated specs)"],
+        :format => ["-f", "--format FORMAT[:WHERE]",  "Specifies what format to use for output. Specify WHERE to tell",
+                                                    "the formatter where to write the output. All built-in formats",
+                                                    "expect WHERE to be a file name, and will write to STDOUT if it's",
+                                                    "not specified. The --format option may be specified several times",
+                                                    "if you want several outputs",
+                                                    " ",
+                                                    "Builtin formats for examples: ",
+                                                    "progress|p               : Text progress",
+                                                    "profile|o                : Text progress with profiling of 10 slowest examples",
+                                                    "specdoc|s                : Example doc as text",
+                                                    "html|h                   : A nice HTML report",
+                                                    "failing_examples|e       : Write all failing examples - input for --example",
+                                                    "failing_example_groups|g : Write all failing example groups - input for --example",
+                                                    " ",
+                                                    "Builtin formats for stories: ",
+                                                    "plain|p              : Plain Text",
+                                                    "html|h               : A nice HTML report",
+                                                    " ",
+                                                    "FORMAT can also be the name of a custom formatter class",
+                                                    "(in which case you should also specify --require to load it)"],
+        :require => ["-r", "--require FILE", "Require FILE before running specs",
+                                          "Useful for loading custom formatters or other extensions.",
+                                          "If this option is used it must come before the others"],
+        :backtrace => ["-b", "--backtrace", "Output full backtrace"],
+        :loadby => ["-L", "--loadby STRATEGY", "Specify the strategy by which spec files should be loaded.",
+                                              "STRATEGY can currently only be 'mtime' (File modification time)",
+                                              "By default, spec files are loaded in alphabetical order if --loadby",
+                                              "is not specified."],
+        :reverse => ["-R", "--reverse", "Run examples in reverse order"],
+        :timeout => ["-t", "--timeout FLOAT", "Interrupt and fail each example that doesn't complete in the",
+                                              "specified time"],
+        :heckle => ["-H", "--heckle CODE", "If all examples pass, this will mutate the classes and methods",
+                                           "identified by CODE little by little and run all the examples again",
+                                           "for each mutation. The intent is that for each mutation, at least",
+                                           "one example *should* fail, and RSpec will tell you if this is not the",
+                                           "case. CODE should be either Some::Module, Some::Class or",
+                                           "Some::Fabulous#method}"],
+        :dry_run => ["-d", "--dry-run", "Invokes formatters without executing the examples."],
+        :options_file => ["-O", "--options PATH", "Read options from a file"],
+        :generate_options => ["-G", "--generate-options PATH", "Generate an options file for --options"],
+        :runner => ["-U", "--runner RUNNER", "Use a custom Runner."],
+        :drb => ["-X", "--drb", "Run examples via DRb. (For example against script/spec_server)"],
+        :version => ["-v", "--version", "Show version"],
+        :help => ["-h", "--help", "You're looking at it"]
+      }
+
+      def initialize(err, out)
+        super()
+        @error_stream = err
+        @out_stream = out
+        @options = Options.new(@error_stream, @out_stream)
+
+        @spec_parser = SpecParser.new
+        @file_factory = File
+
+        self.banner = "Usage: spec (FILE|DIRECTORY|GLOB)+ [options]"
+        self.separator ""
+        on(*OPTIONS[:diff]) {|diff| @options.parse_diff(diff)}
+        on(*OPTIONS[:colour]) {@options.colour = true}
+        on(*OPTIONS[:example]) {|example| @options.parse_example(example)}
+        on(*OPTIONS[:specification]) {|example| @options.parse_example(example)}
+        on(*OPTIONS[:line]) {|line_number| @options.line_number = line_number.to_i}
+        on(*OPTIONS[:format]) {|format| @options.parse_format(format)}
+        on(*OPTIONS[:require]) {|requires| invoke_requires(requires)}
+        on(*OPTIONS[:backtrace]) {@options.backtrace_tweaker = NoisyBacktraceTweaker.new}
+        on(*OPTIONS[:loadby]) {|loadby| @options.loadby = loadby}
+        on(*OPTIONS[:reverse]) {@options.reverse = true}
+        on(*OPTIONS[:timeout]) {|timeout| @options.timeout = timeout.to_f}
+        on(*OPTIONS[:heckle]) {|heckle| @options.load_heckle_runner(heckle)}
+        on(*OPTIONS[:dry_run]) {@options.dry_run = true}
+        on(*OPTIONS[:options_file]) {|options_file| parse_options_file(options_file)}
+        on(*OPTIONS[:generate_options]) do |options_file|
+        end
+        on(*OPTIONS[:runner]) do |runner|
+          @options.user_input_for_runner = runner
+        end
+        on(*OPTIONS[:drb]) {}
+        on(*OPTIONS[:version]) {parse_version}
+        on_tail(*OPTIONS[:help]) {parse_help}
+      end
+
+      def order!(argv, &blk)
+        @argv = argv
+        @options.argv = @argv.dup
+        return if parse_generate_options
+        return if parse_drb
+        
+        super(@argv) do |file|
+          @options.files << file
+          blk.call(file) if blk
+        end
+
+        if @options.line_number
+          set_spec_from_line_number
+        end
+
+        @options
+      end
+
+      protected
+      def invoke_requires(requires)
+        requires.split(",").each do |file|
+          require file
+        end
+      end
+      
+      def parse_options_file(options_file)
+        option_file_args = IO.readlines(options_file).map {|l| l.chomp.split " "}.flatten
+        @argv.push(*option_file_args)
+      end
+
+      def parse_generate_options
+        # Remove the --generate-options option and the argument before writing to file
+        options_file = nil
+        ['-G', '--generate-options'].each do |option|
+          if index = @argv.index(option)
+            @argv.delete_at(index)
+            options_file = @argv.delete_at(index)
+          end
+        end
+        
+        if options_file
+          write_generated_options(options_file)
+          return true
+        else
+          return false
+        end
+      end
+      
+      def write_generated_options(options_file)
+        File.open(options_file, 'w') do |io|
+          io.puts @argv.join("\n")
+        end
+        @out_stream.puts "\nOptions written to #{options_file}. You can now use these options with:"
+        @out_stream.puts "spec --options #{options_file}"
+        @options.examples_should_not_be_run
+      end
+
+      def parse_drb
+        is_drb = false
+        argv = @options.argv
+        is_drb ||= argv.delete(OPTIONS[:drb][0])
+        is_drb ||= argv.delete(OPTIONS[:drb][1])
+        return nil unless is_drb
+        @options.examples_should_not_be_run
+        DrbCommandLine.run(
+          self.class.parse(argv, @error_stream, @out_stream)
+        )
+        true
+      end
+
+      def parse_version
+        @out_stream.puts ::Spec::VERSION::DESCRIPTION
+        exit if stdout?
+      end
+
+      def parse_help
+        @out_stream.puts self
+        exit if stdout?
+      end      
+
+      def set_spec_from_line_number
+        if @options.examples.empty?
+          if @options.files.length == 1
+            if @file_factory.file?(@options.files[0])
+              source = @file_factory.open(@options.files[0])
+              example = @spec_parser.spec_name_for(source, @options.line_number)
+              @options.parse_example(example)
+            elsif @file_factory.directory?(@options.files[0])
+              @error_stream.puts "You must specify one file, not a directory when using the --line option"
+              exit(1) if stderr?
+            else
+              @error_stream.puts "#{@options.files[0]} does not exist"
+              exit(2) if stderr?
+            end
+          else
+            @error_stream.puts "Only one file can be specified when using the --line option: #{@options.files.inspect}"
+            exit(3) if stderr?
+          end
+        else
+          @error_stream.puts "You cannot use both --line and --example"
+          exit(4) if stderr?
+        end
+      end
+
+      def stdout?
+        @out_stream == $stdout
+      end
+
+      def stderr?
+        @error_stream == $stderr
+      end
+    end
+  end
+end