35 lines
1.0 KiB
Ruby
35 lines
1.0 KiB
Ruby
require 'benchmark'
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require 'helper'
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describe Twitter::Utils do
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describe '#pmap' do
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it 'maps in parallel' do
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delay = 0.1
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array = (0..9).to_a
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size = array.size
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block = proc { |x| sleep(delay) && x + 1 }
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block_without_sleep = proc { |x| x + 1 }
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expected = array.collect(&block_without_sleep)
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elapsed_time = Benchmark.realtime do
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expect(subject.pmap(array, &block)).to eq(expected)
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end
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expect(elapsed_time).to be_between(delay, delay * size)
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end
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end
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describe '#flat_pmap' do
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it 'flat maps in parallel' do
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delay = 0.1
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array = (0..4).to_a.combination(2).to_a
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size = array.size
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block = proc { |x| sleep(delay) && x.reverse }
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block_without_sleep = proc { |x| x.reverse }
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expected = array.collect(&block_without_sleep).flatten!(1)
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elapsed_time = Benchmark.realtime do
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expect(subject.flat_pmap(array, &block)).to eq(expected)
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end
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expect(elapsed_time).to be_between(delay, delay * size)
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end
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end
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end
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