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