Well, after some time fiddling, I've come up with this:
require 'rubygems'
# make sure nothing gets added to ruby's at_exit hook:
$spec_runner_at_exit_hook_registered = true
# load RSpec
require 'spec'
require 'spec/runner/formatter/base_formatter'
# helper to find all defined example groups
def lookup_example_groups
cs = []
Spec::Example::ExampleGroup.constants.each do |c|
if c =~ /Subclass_/
cs << Spec::Example::ExampleGroup.const_get(c)
end
end
cs
end
# helper to undefine example groups
def clean_example_groups(groups)
groups.each do |c|
puts "cleaning #{c.to_s}"
Spec::Example::ExampleGroup.send(:remove_const,
c.to_s.split("::").last.intern)
end
end
# my custom formatter, mainly just a stub for now, but will be used
# to pass information about failing specs back to the gui.
class RubyFormatter < Spec::Runner::Formatter::BaseFormatter
def initialize
super(rspec_options, StringIO.new)
@pass_count = 0
@fail_count = 0
end
def start(example_count)
@example_count = example_count
end
def example_passed(*args)
@pass_count += 1
end
def example_failed(*args)
@fail_count += 1
end
def inspect
"<RubyFormatter total:[EMAIL PROTECTED], passed:[EMAIL PROTECTED],
failed:[EMAIL PROTECTED]>"
end
end
# stub out options to use my own formatter
def rspec_options.formatters
@o ||= RubyFormatter.new
[EMAIL PROTECTED]
end
# load the actual specs
load 'some_specs.rb'
# run the example groups
lookup_example_groups.each do |eg|
eg.run
end
# examine the results
p rspec_options.formatters.first
# undefine example groups
clean_example_groups(lookup_example_groups)
# clear up formatter
rspec_options.instance_variable_set(:@o, nil)
# system is now clean (?), and ready to reload specs etc
As you can probably tell, I'm coding without really understanding. This works
well enough for my
needs right now, but please let me know how these things can be done better.
thanks,
Dan
--- Daniel Lucraft <[EMAIL PROTECTED]> wrote:
> Hi all
>
> (I tried to send this question to the list a few hours ago, but it
> seems to have not got through. If it did sorry for the duplication.)
>
> Does anyone have any tips or examples of how to run RSpec example
> groups programmatically from within a Ruby application?
>
> Essentially I would like to be able to:
> 1. load example groups from a set of files I know about
> 2. run them
> 3. get back an object that contains information about successes and failures
> 4. reload the example groups
>
> I think I i can accomplish (3) with a custom formatter, (4) by
> reflecting on and undefining the classes Example::Subclass_1 etc as
> required.
>
> But I'm having real trouble with the first two steps. Here's what I have so
> far:
>
> require 'rubygems'
> require 'spec'
>
> $spec_runner_at_exit_hook_registered = true
> require 'some_specs'
>
> err = StringIO.new
> out = StringIO.new
> options = Spec::Runner::Options.new(err, out)
>
> options.add_example_group(Spec::Example::ExampleGroup::Subclass_1)
> runner = Spec::Runner::ExampleGroupRunner.new(options)
>
> runner.run
> puts "results:"
> puts out.string
> puts "\n\n[script end]"
>
> But the results string here claims that there were 0 examples run. By
> looking at the output I know that my example is being run however.
>
> Can someone help me put these pieces together?
>
> thanks,
> Dan
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> rspec-users@rubyforge.org
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>
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