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Contents
require 'spec_helper'
describe '#sunion(key [, key, ...])' do
before do
@evens = 'mock-redis-test:sunion:evens'
@primes = 'mock-redis-test:sunion:primes'
[2, 4, 6, 8, 10].each { |i| @redises.sadd(@evens, i) }
[2, 3, 5, 7].each { |i| @redises.sadd(@primes, i) }
end
it 'returns the elements in the resulting set' do
@redises.sunion(@evens, @primes).should == %w[2 4 6 8 10 3 5 7]
end
it 'treats missing keys as empty sets' do
@redises.sunion(@primes, 'mock-redis-test:nonesuch').
should == %w[2 3 5 7]
end
it 'allows Array as argument' do
@redises.sunion([@evens, @primes]).should == %w[2 4 6 8 10 3 5 7]
end
it 'raises an error if given 0 sets' do
lambda do
@redises.sunion
end.should raise_error(Redis::CommandError)
end
it 'raises an error if any argument is not a a set' do
@redises.set('mock-redis-test:notset', 1)
lambda do
@redises.sunion(@numbers, 'mock-redis-test:notset')
end.should raise_error(Redis::CommandError)
lambda do
@redises.sunion('mock-redis-test:notset', @numbers)
end.should raise_error(Redis::CommandError)
end
end
Version data entries
32 entries across 32 versions & 1 rubygems