2018-03-04 10:09:32 -05:00
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require_relative '../../spec_helper'
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require_relative 'fixtures/classes'
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2017-05-07 08:04:49 -04:00
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describe "Kernel#hash" do
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2018-01-29 11:08:16 -05:00
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it "is provided" do
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1.respond_to?(:hash).should == true
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end
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it "is stable" do
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1.hash.should == 1.hash
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end
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2017-05-07 08:04:49 -04:00
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end
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describe "Kernel" do
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it "has private instance method Hash()" do
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Kernel.should have_private_instance_method(:Hash)
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end
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end
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describe :kernel_Hash, shared: true do
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before :each do
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@hash = { a: 1}
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end
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it "converts nil to a Hash" do
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@object.send(@method, nil).should == {}
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end
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it "converts an empty array to a Hash" do
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@object.send(@method, []).should == {}
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end
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it "does not call #to_hash on an Hash" do
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@hash.should_not_receive(:to_hash)
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@object.send(@method, @hash).should == @hash
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end
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it "calls #to_hash to convert the argument to an Hash" do
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obj = mock("Hash(a: 1)")
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obj.should_receive(:to_hash).and_return(@hash)
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@object.send(@method, obj).should == @hash
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end
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it "raises a TypeError if it doesn't respond to #to_hash" do
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lambda { @object.send(@method, mock("")) }.should raise_error(TypeError)
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end
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it "raises a TypeError if #to_hash does not return an Hash" do
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obj = mock("Hash() string")
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obj.should_receive(:to_hash).and_return("string")
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lambda { @object.send(@method, obj) }.should raise_error(TypeError)
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end
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end
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describe "Kernel.Hash" do
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it_behaves_like :kernel_Hash, :Hash_method, KernelSpecs
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end
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describe "Kernel#Hash" do
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it_behaves_like :kernel_Hash, :Hash_function, KernelSpecs
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end
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