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24 lines
689 B
Ruby
24 lines
689 B
Ruby
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require File.expand_path('../../../spec_helper', __FILE__)
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require File.expand_path('../fixtures/classes', __FILE__)
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describe "Hash#keys" do
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it "returns an array with the keys in the order they were inserted" do
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{}.keys.should == []
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{}.keys.should be_kind_of(Array)
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Hash.new(5).keys.should == []
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Hash.new { 5 }.keys.should == []
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{ 1 => 2, 4 => 8, 2 => 4 }.keys.should == [1, 4, 2]
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{ 1 => 2, 2 => 4, 4 => 8 }.keys.should be_kind_of(Array)
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{ nil => nil }.keys.should == [nil]
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end
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it "uses the same order as #values" do
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h = { 1 => "1", 2 => "2", 3 => "3", 4 => "4" }
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h.size.times do |i|
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h[h.keys[i]].should == h.values[i]
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end
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end
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end
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