require_relative '../../spec_helper' require_relative 'fixtures/classes' describe "Hash#clear" do it "removes all key, value pairs" do h = { 1 => 2, 3 => 4 } h.clear.should equal(h) h.should == {} end it "does not remove default values" do h = Hash.new(5) h.clear h.default.should == 5 h = { "a" => 100, "b" => 200 } h.default = "Go fish" h.clear h["z"].should == "Go fish" end it "does not remove default procs" do h = Hash.new { 5 } h.clear h.default_proc.should_not == nil end it "raises a FrozenError if called on a frozen instance" do -> { HashSpecs.frozen_hash.clear }.should raise_error(FrozenError) -> { HashSpecs.empty_frozen_hash.clear }.should raise_error(FrozenError) end end