51 lines
1.5 KiB
Ruby
51 lines
1.5 KiB
Ruby
# frozen_string_literal: true
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RSpec.describe Utils do
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[
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{ test: 5, result: 4 },
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{ test: 3, result: 2 },
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{ test: 13, result: 8 },
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{ test: 35, result: 32 },
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{ test: 32, result: 32 },
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{ test: 0, result: 0 },
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{ test: 3482, result: 2048 },
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{ test: 1337, result: 1024 }
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].each do |parameters|
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it "calculates #{parameters[:result]} as previous power of two from #{parameters[:test]}" do
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expect(Utils.previous_power_of_two(parameters[:test])).to eq(parameters[:result])
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end
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end
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[
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{ test: 5, result: 8 },
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{ test: 3, result: 4 },
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{ test: 13, result: 16 },
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{ test: 35, result: 64 },
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{ test: 32, result: 64 },
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{ test: 0, result: 1 },
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{ test: 3482, result: 4096 },
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{ test: 1337, result: 2048 }
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].each do |parameters|
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it "calculates #{parameters[:result]} as previous power of two from #{parameters[:test]}" do
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expect(Utils.next_power_of_two(parameters[:test])).to eq(parameters[:result])
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end
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end
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[
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{ test: 5, result: false },
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{ test: 3, result: false },
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{ test: 16, result: true },
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{ test: 4, result: true },
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{ test: 32, result: true },
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{ test: 0, result: false },
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{ test: 3482, result: false },
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{ test: 8192, result: true }
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].each do |parameters|
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is_isnt = "isn't" unless parameters[:result]
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is_isnt = 'is' if parameters[:result]
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it "thinks #{parameters[:test]} #{is_isnt} a power of two" do
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expect(Utils.po2?(parameters[:test])).to eq(parameters[:result])
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end
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end
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end
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