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Contents
require 'spec_helper'
describe '#sdiff(key [, key, ...])' do
before do
@numbers = 'mock-redis-test:sdiff:numbers'
@evens = 'mock-redis-test:sdiff:odds'
@primes = 'mock-redis-test:sdiff:primes'
(1..10).each {|i| @redises.sadd(@numbers, i) }
[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 first set minus the second set" do
@redises.sdiff(@numbers, @evens).should == %w[1 3 5 7 9]
end
it "returns the first set minus all the other sets" do
@redises.sdiff(@numbers, @evens, @primes).should == %w[1 9]
end
it "treats missing keys as empty sets" do
@redises.sdiff(@evens, 'mock-redis-test:nonesuch').should == %w[2 4 6 8 10]
end
it "returns the first set when called with a single argument" do
@redises.sdiff(@primes).should == %w[2 3 5 7]
end
it "raises an error if given 0 arguments" do
lambda do
@redises.sdiff()
end.should raise_error(RuntimeError)
end
it "raises an error if any argument is not a a set" do
@redises.set('foo', 1)
lambda do
@redises.sdiff(@numbers, 'foo')
end.should raise_error(RuntimeError)
lambda do
@redises.sdiff('foo', @numbers)
end.should raise_error(RuntimeError)
end
end
Version data entries
27 entries across 27 versions & 1 rubygems