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33 lines
825 B
Ruby
33 lines
825 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#clear" do
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it "removes all key, value pairs" do
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h = { 1 => 2, 3 => 4 }
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h.clear.should equal(h)
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h.should == {}
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end
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it "does not remove default values" do
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h = Hash.new(5)
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h.clear
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h.default.should == 5
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h = { "a" => 100, "b" => 200 }
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h.default = "Go fish"
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h.clear
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h["z"].should == "Go fish"
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end
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it "does not remove default procs" do
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h = Hash.new { 5 }
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h.clear
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h.default_proc.should_not == nil
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end
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it "raises a RuntimeError if called on a frozen instance" do
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lambda { HashSpecs.frozen_hash.clear }.should raise_error(RuntimeError)
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lambda { HashSpecs.empty_frozen_hash.clear }.should raise_error(RuntimeError)
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end
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end
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