module MockRedis::SetMethods
Public Instance Methods
sadd(key, members)
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# File lib/mock_redis/set_methods.rb, line 9 def sadd(key, members) members_class = members.class members = [members].flatten.map(&:to_s) assert_has_args(members, 'sadd') with_set_at(key) do |s| size_before = s.size if members.size > 1 members.reverse_each { |m| s << m } s.size - size_before else added = !!s.add?(members.first) if members_class == Array s.size - size_before else added end end end end
scard(key)
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# File lib/mock_redis/set_methods.rb, line 30 def scard(key) with_set_at(key, &:length) end
sdiff(*keys)
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# File lib/mock_redis/set_methods.rb, line 34 def sdiff(*keys) assert_has_args(keys, 'sdiff') with_sets_at(*keys) { |*sets| sets.reduce(&:-) }.to_a end
sdiffstore(destination, *keys)
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# File lib/mock_redis/set_methods.rb, line 39 def sdiffstore(destination, *keys) assert_has_args(keys, 'sdiffstore') with_set_at(destination) do |set| set.replace(sdiff(*keys)) end scard(destination) end
sinter(*keys)
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# File lib/mock_redis/set_methods.rb, line 47 def sinter(*keys) assert_has_args(keys, 'sinter') with_sets_at(*keys) do |*sets| sets.reduce(&:&).to_a end end
sinterstore(destination, *keys)
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# File lib/mock_redis/set_methods.rb, line 55 def sinterstore(destination, *keys) assert_has_args(keys, 'sinterstore') with_set_at(destination) do |set| set.replace(sinter(*keys)) end scard(destination) end
sismember(key, member)
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# File lib/mock_redis/set_methods.rb, line 63 def sismember(key, member) with_set_at(key) { |s| s.include?(member.to_s) } end
smembers(key)
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# File lib/mock_redis/set_methods.rb, line 67 def smembers(key) with_set_at(key, &:to_a).map(&:dup).reverse end
smove(src, dest, member)
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# File lib/mock_redis/set_methods.rb, line 71 def smove(src, dest, member) member = member.to_s with_sets_at(src, dest) do |src_set, dest_set| if src_set.delete?(member) dest_set.add(member) true else false end end end
spop(key, count = nil)
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# File lib/mock_redis/set_methods.rb, line 84 def spop(key, count = nil) with_set_at(key) do |set| if count.nil? member = set.first set.delete(member) member else members = [] count.times do member = set.first break if member.nil? set.delete(member) members << member end members end end end
srandmember(key, count = nil)
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# File lib/mock_redis/set_methods.rb, line 103 def srandmember(key, count = nil) members = with_set_at(key, &:to_a) if count if count > 0 members.sample(count) else Array.new(count.abs) { members[rand(members.length)] } end else members[rand(members.length)] end end
srem(key, members)
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# File lib/mock_redis/set_methods.rb, line 116 def srem(key, members) with_set_at(key) do |s| if members.is_a?(Array) orig_size = s.size members = members.map(&:to_s) s.delete_if { |m| members.include?(m) } orig_size - s.size else !!s.delete?(members.to_s) end end end
sscan(key, cursor, opts = {})
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# File lib/mock_redis/set_methods.rb, line 129 def sscan(key, cursor, opts = {}) common_scan(smembers(key), cursor, opts) end
sscan_each(key, opts = {}, &block)
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# File lib/mock_redis/set_methods.rb, line 133 def sscan_each(key, opts = {}, &block) return to_enum(:sscan_each, key, opts) unless block_given? cursor = 0 loop do cursor, keys = sscan(key, cursor, opts) keys.each(&block) break if cursor == '0' end end
sunion(*keys)
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# File lib/mock_redis/set_methods.rb, line 143 def sunion(*keys) assert_has_args(keys, 'sunion') with_sets_at(*keys) { |*sets| sets.reduce(&:+).to_a } end
sunionstore(destination, *keys)
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# File lib/mock_redis/set_methods.rb, line 148 def sunionstore(destination, *keys) assert_has_args(keys, 'sunionstore') with_set_at(destination) do |dest_set| dest_set.replace(sunion(*keys)) end scard(destination) end
Private Instance Methods
assert_sety(key)
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# File lib/mock_redis/set_methods.rb, line 179 def assert_sety(key) unless sety?(key) # Not the most helpful error, but it's what redis-rb barfs up raise Redis::CommandError, 'WRONGTYPE Operation against a key holding the wrong kind of value' end end
sety?(key)
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# File lib/mock_redis/set_methods.rb, line 175 def sety?(key) data[key].nil? || data[key].is_a?(Set) end
with_set_at(key, &blk)
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# File lib/mock_redis/set_methods.rb, line 158 def with_set_at(key, &blk) with_thing_at(key, :assert_sety, proc { Set.new }, &blk) end
with_sets_at(*keys) { |*([set] + sets)| ... }
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# File lib/mock_redis/set_methods.rb, line 162 def with_sets_at(*keys, &blk) keys = keys.flatten if keys.length == 1 with_set_at(keys.first, &blk) else with_set_at(keys.first) do |set| with_sets_at(*(keys[1..-1])) do |*sets| yield(*([set] + sets)) end end end end