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Contents
require 'spec_helper'
describe '#ltrim(key, start, stop)' do
before do
@key = 'mock-redis-test:22310'
%w[v0 v1 v2 v3 v4].reverse_each { |v| @redises.lpush(@key, v) }
end
it "returns 'OK'" do
@redises.ltrim(@key, 1, 3).should == 'OK'
end
it 'trims the list to include only the specified elements' do
@redises.ltrim(@key, 1, 3)
@redises.lrange(@key, 0, -1).should == %w[v1 v2 v3]
end
it 'trims the list when start and stop are strings' do
@redises.ltrim(@key, '1', '3')
@redises.lrange(@key, 0, -1).should == %w[v1 v2 v3]
end
it 'trims the list to include only the specified elements (negative indices)' do
@redises.ltrim(@key, -2, -1)
@redises.lrange(@key, 0, -1).should == %w[v3 v4]
end
it 'trims the list to include only the specified elements (out of range negative indices)' do
@redises.ltrim(@key, -10, -2)
@redises.lrange(@key, 0, -1).should == %w[v0 v1 v2 v3]
end
it 'does not crash on overly-large indices' do
@redises.ltrim(@key, 100, 200)
@redises.lrange(@key, 0, -1).should == %w[]
end
it 'removes empty lists' do
@redises.ltrim(@key, 1, 0)
@redises.get(@key).should be_nil
end
it_should_behave_like 'a list-only command'
end
Version data entries
33 entries across 33 versions & 1 rubygems