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28 lines
811 B
Ruby
28 lines
811 B
Ruby
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require File.expand_path('../../../spec_helper', __FILE__)
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require 'set'
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describe "Set#classify" do
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before :each do
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@set = Set["one", "two", "three", "four"]
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end
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it "yields each Object in self" do
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res = []
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@set.classify { |x| res << x }
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res.sort.should == ["one", "two", "three", "four"].sort
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end
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it "returns an Enumerator when passed no block" do
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enum = @set.classify
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enum.should be_an_instance_of(Enumerator)
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classified = enum.each { |x| x.length }
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classified.should == { 3 => Set["one", "two"], 4 => Set["four"], 5 => Set["three"] }
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end
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it "classifies the Objects in self based on the block's return value" do
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classified = @set.classify { |x| x.length }
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classified.should == { 3 => Set["one", "two"], 4 => Set["four"], 5 => Set["three"] }
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end
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end
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