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43 lines
1 KiB
Ruby
43 lines
1 KiB
Ruby
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require File.expand_path('../../../spec_helper', __FILE__)
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describe :enum_with_object, shared: true do
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before :each do
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@enum = [:a, :b].to_enum
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@memo = ''
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@block_params = @enum.send(@method, @memo).to_a
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end
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it "receives an argument" do
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@enum.method(@method).arity.should == 1
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end
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context "with block" do
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it "returns the given object" do
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ret = @enum.send(@method, @memo) do |elm, memo|
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# nothing
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end
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ret.should equal(@memo)
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end
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context "the block parameter" do
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it "passes each element to first parameter" do
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@block_params[0][0].should equal(:a)
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@block_params[1][0].should equal(:b)
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end
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it "passes the given object to last parameter" do
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@block_params[0][1].should equal(@memo)
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@block_params[1][1].should equal(@memo)
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end
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end
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end
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context "without block" do
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it "returns new Enumerator" do
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ret = @enum.send(@method, @memo)
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ret.should be_an_instance_of(Enumerator)
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ret.should_not equal(@enum)
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end
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end
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end
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