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require File.expand_path('../enumerable_enumeratorized', __FILE__)
describe :enumerable_collect_concat, shared: true do
it "yields elements to the block and flattens one level" do
numerous = EnumerableSpecs::Numerous.new(1, [2, 3], [4, [5, 6]], {foo: :bar})
numerous.send(@method) { |i| i }.should == [1, 2, 3, 4, [5, 6], {foo: :bar}]
end
it "appends non-Array elements that do not define #to_ary" do
obj = mock("to_ary undefined")
numerous = EnumerableSpecs::Numerous.new(1, obj, 2)
numerous.send(@method) { |i| i }.should == [1, obj, 2]
end
it "concatenates the result of calling #to_ary if it returns an Array" do
obj = mock("to_ary defined")
obj.should_receive(:to_ary).and_return([:a, :b])
numerous = EnumerableSpecs::Numerous.new(1, obj, 2)
numerous.send(@method) { |i| i }.should == [1, :a, :b, 2]
end
it "does not call #to_a" do
obj = mock("to_ary undefined")
obj.should_not_receive(:to_a)
numerous = EnumerableSpecs::Numerous.new(1, obj, 2)
numerous.send(@method) { |i| i }.should == [1, obj, 2]
end
it "appends an element that defines #to_ary that returns nil" do
obj = mock("to_ary defined")
obj.should_receive(:to_ary).and_return(nil)
numerous = EnumerableSpecs::Numerous.new(1, obj, 2)
numerous.send(@method) { |i| i }.should == [1, obj, 2]
end
it "raises a TypeError if an element defining #to_ary does not return an Array or nil" do
obj = mock("to_ary defined")
obj.should_receive(:to_ary).and_return("array")
lambda { [1, obj, 3].send(@method) { |i| i } }.should raise_error(TypeError)
end
it "returns an enumerator when no block given" do
enum = EnumerableSpecs::Numerous.new(1, 2).send(@method)
enum.should be_an_instance_of(Enumerator)
enum.each{ |i| [i] * i }.should == [1, 2, 2]
end
it_should_behave_like :enumerable_enumeratorized_with_origin_size
end
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