1module Spec
2 module Example
3 class ExampleGroupFactory
4 class << self
5 def reset
6 @example_group_types = nil
7 default(ExampleGroup)
8 end
9
10 # Registers an example group class +klass+ with the symbol
11 # +type+. For example:
12 #
13 # Spec::Example::ExampleGroupFactory.register(:farm, Spec::Farm::Example::FarmExampleGroup)
14 #
15 # This will cause Main#describe from a file living in
16 # <tt>spec/farm</tt> to create example group instances of type
17 # Spec::Farm::Example::FarmExampleGroup.
18 def register(id, example_group_class)
19 @example_group_types[id] = example_group_class
20 end
21
22 # Sets the default ExampleGroup class
23 def default(example_group_class)
24 old = @example_group_types
25 @example_group_types = Hash.new(example_group_class)
26 @example_group_types.merge(old) if old
27 end
28
29 def get(id=nil)
30 if @example_group_types.values.include?(id)
31 id
32 else
33 @example_group_types[id]
34 end
35 end
36
37 def create_example_group(*args, &block)
38 opts = Hash === args.last ? args.last : {}
39 if opts[:shared]
40 SharedExampleGroup.new(*args, &block)
41 else
42 superclass = determine_superclass(opts)
43 superclass.describe(*args, &block)
44 end
45 end
46
47 protected
48
49 def determine_superclass(opts)
50 id = if opts[:type]
51 opts[:type]
52 elsif opts[:spec_path] =~ /spec(\\|\/)(#{@example_group_types.keys.join('|')})/
53 $2 == '' ? nil : $2.to_sym
54 end
55 get(id)
56 end
57
58 end
59 self.reset
60 end
61 end
62end