1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../fixtures/classes', __FILE__)
require File.expand_path('../shared/dup_clone', __FILE__)
describe "Kernel#dup" do
it_behaves_like :kernel_dup_clone, :dup
before :each do
ScratchPad.clear
@obj = KernelSpecs::Duplicate.new 1, :a
end
it "calls #initialize_copy on the new instance" do
dup = @obj.dup
ScratchPad.recorded.should_not == @obj.object_id
ScratchPad.recorded.should == dup.object_id
end
it "uses the internal allocator and does not call #allocate" do
klass = Class.new
instance = klass.new
def klass.allocate
raise "allocate should not be called"
end
dup = instance.dup
dup.class.should equal klass
end
it "does not copy frozen state from the original" do
@obj.freeze
dup = @obj.dup
dup.frozen?.should == false
end
it "copies instance variables" do
dup = @obj.dup
dup.one.should == 1
dup.two.should == :a
end
it "does not copy singleton methods" do
def @obj.special() :the_one end
dup = @obj.dup
lambda { dup.special }.should raise_error(NameError)
end
it "does not copy modules included in the singleton class" do
class << @obj
include KernelSpecs::DuplicateM
end
dup = @obj.dup
lambda { dup.repr }.should raise_error(NameError)
end
it "does not copy constants defined in the singleton class" do
class << @obj
CLONE = :clone
end
dup = @obj.dup
lambda { class << dup; CLONE; end }.should raise_error(NameError)
end
end
|
