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Contents
require 'vm_shepherd/retry_helper'
module VmShepherd
RSpec.describe RetryHelper do
subject(:retry_helper) { TestRetryHelper.new }
class TestRetryHelper
include RetryHelper
end
before do
allow(retry_helper).to receive(:sleep) # speed up retry logic
end
it 'calls the given block 60 times by default' do
sixty_times = [true] + [false] * 59
expect {
retry_helper.retry_until { sixty_times.pop }
}.not_to raise_error
sixty_one_times = [true] + [false] * 60
expect {
retry_helper.retry_until { sixty_one_times.pop }
}.to raise_error(RetryHelper::RetryLimitExceeded)
end
it 'throws an error if the block never returns true' do
expect {
retry_helper.retry_until { false }
}.to raise_error(RetryHelper::RetryLimitExceeded)
end
it 'returns early if the block returns a truthy value' do
counter = 0
retry_helper.retry_until do
counter += 1
counter == 6
end
expect(counter).to eq(6)
end
it 'returns the value of the block' do
expect(retry_helper.retry_until { 'retrying' }).to eq('retrying')
end
it 'calls the given block the given number of times' do
forty_two_times = [true] + [false] * 41
expect {
retry_helper.retry_until(retry_limit: 42) { forty_two_times.pop }
}.not_to raise_error
forty_three_times = [true] + [false] * 42
expect {
retry_helper.retry_until(retry_limit: 42) { forty_three_times.pop }
}.to raise_error(RetryHelper::RetryLimitExceeded)
end
end
end
Version data entries
15 entries across 15 versions & 1 rubygems