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Contents
require 'spec_helper'
module Alf
describe Ordering, "compare" do
it "should work on a singleton ordering" do
key = Ordering.coerce [:a]
key.compare({:a => 1}, {:a => 2}).should == -1
key.compare({:a => 1}, {:a => 1}).should == 0
key.compare({:a => 2}, {:a => 1}).should == 1
end
it "should work on singleton when :desc" do
key = Ordering.coerce [[:a, :desc]]
key.compare({:a => 1}, {:a => 2}).should == 1
key.compare({:a => 1}, {:a => 1}).should == 0
key.compare({:a => 2}, {:a => 1}).should == -1
end
it "should work with multiple keys" do
key = Ordering.coerce [[:a, :asc], [:b, :desc]]
key.compare({:a => 1, :b => 1}, {:a => 0, :b => 1}).should == 1
key.compare({:a => -1, :b => 1}, {:a => 0, :b => 1}).should == -1
key.compare({:a => 0, :b => 1}, {:a => 0, :b => 0}).should == -1
key.compare({:a => 1, :b => 1}, {:a => 1, :b => 2}).should == 1
key.compare({:a => 1, :b => 1}, {:a => 1, :b => 1}).should == 0
end
end # compare
end # Alf
Version data entries
4 entries across 4 versions & 1 rubygems