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
|
describe :sizedqueue_max, shared: true do
it "returns the size of the queue" do
q = @object.call(5)
q.max.should == 5
end
end
describe :sizedqueue_max=, shared: true do
it "sets the size of the queue" do
q = @object.call(5)
q.max.should == 5
q.max = 10
q.max.should == 10
end
it "does not remove items already in the queue beyond the maximum" do
q = @object.call(5)
q.enq 1
q.enq 2
q.enq 3
q.max = 2
(q.size > q.max).should be_true
q.deq.should == 1
q.deq.should == 2
q.deq.should == 3
end
it "raises a TypeError when given a non-numeric value" do
q = @object.call(5)
-> { q.max = "foo" }.should raise_error(TypeError)
-> { q.max = Object.new }.should raise_error(TypeError)
end
it "raises an argument error when set to zero" do
q = @object.call(5)
q.max.should == 5
-> { q.max = 0 }.should raise_error(ArgumentError)
q.max.should == 5
end
it "raises an argument error when set to a negative number" do
q = @object.call(5)
q.max.should == 5
-> { q.max = -1 }.should raise_error(ArgumentError)
q.max.should == 5
end
end
|
