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Contents
require 'spec_helper'
describe '#srandmember(key)' do
before do
@key = 'mock-redis-test:srandmember'
@redises.sadd(@key, 'value')
end
it 'returns a member of the set' do
@redises.srandmember(@key).should == 'value'
end
it 'does not modify the set' do
@redises.srandmember(@key)
@redises.smembers(@key).should == ['value']
end
it 'returns nil if the set is empty' do
@redises.spop(@key)
@redises.srandmember(@key).should be_nil
end
context 'when count argument is specified' do
before do
@redises.sadd(@key, 'value2')
@redises.sadd(@key, 'value3')
end
# NOTE: We disable result checking since MockRedis and Redis will likely
# return a different random set (since the selection is, well, random)
it 'returns the whole set if count is greater than the set size' do
@redises.send_without_checking(:srandmember, @key, 5).should =~ %w[value value2 value3]
end
it 'returns random members up to count from the set when count is smaller than the set size' do
@redises.send_without_checking(:srandmember, @key, 2).size.should == 2
end
it 'returns random members up to count from the set when count is negative even if count.abs is greater than the set size' do # rubocop:disable Layout/LineLength
@redises.send_without_checking(:srandmember, @key, -5).size.should == 5
end
it 'returns nil if the set is empty' do
@redises.srem(@key, %w[value value2 value3])
@redises.srandmember(@key, 2).should be_empty
end
end
end
Version data entries
16 entries across 16 versions & 1 rubygems