46 lines
888 B
Ruby
46 lines
888 B
Ruby
require_relative "../port.rb"
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describe Port do
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it "should set the port's value when we call setval" do
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a=Port.new(4)
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a.setval(1)
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expect(a).to eq 1
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end
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it "should propagate values when we call setval" do
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a=Port.new(4)
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b=Port.new(4)
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c=Port.new(4)
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d=Port.new(4)
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#connect A-B and C-D
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a.connect(b)
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c.connect(d)
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a.setval(1)
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c.setval(2)
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expect(a).to eq 1
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expect(b).to eq 1
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expect(c).to eq 2
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expect(d).to eq 2
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#connect them all together
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b.connect(c)
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a.setval(3)
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expect(a).to eq 3
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expect(b).to eq 3
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expect(c).to eq 3
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expect(d).to eq 3
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d.setval(4)
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expect(a).to eq 4
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expect(b).to eq 4
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expect(c).to eq 4
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expect(d).to eq 4
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end
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it "should not allow value to go over max allowed by width" do
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a=Port.new(4)
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expect {a.setval(16)}.to raise_error ArgumentError
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end
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end
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