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require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../fixtures/classes', __FILE__)
describe "Kernel" do
it "has private instance method Array()" do
Kernel.should have_private_instance_method(:Array)
end
end
describe :kernel_Array, :shared => true do
before :each do
@array = [1, 2, 3]
end
it "does not call #to_ary on an Array" do
@array.should_not_receive(:to_ary)
@object.send(@method, @array).should == @array
end
it "calls #to_ary to convert the argument to an Array" do
obj = mock("Array([1,2,3])")
obj.should_receive(:to_ary).and_return(@array)
obj.should_not_receive(:to_a)
@object.send(@method, obj).should == @array
end
it "does not call #to_a on an Array" do
@array.should_not_receive(:to_a)
@object.send(@method, @array).should == @array
end
it "calls #to_a if the argument does not respond to #to_ary" do
obj = mock("Array([1,2,3])")
obj.should_receive(:to_a).and_return(@array)
@object.send(@method, obj).should == @array
end
it "calls #to_a if #to_ary returns nil" do
obj = mock("Array([1,2,3])")
obj.should_receive(:to_ary).and_return(nil)
obj.should_receive(:to_a).and_return(@array)
@object.send(@method, obj).should == @array
end
ruby_version_is ""..."1.9" do
it "raises a TypeError if #to_a returns nil" do
obj = mock("Array([1,2,3])")
obj.should_receive(:to_a).and_return(nil)
lambda { @object.send(@method, obj) }.should raise_error(TypeError)
end
end
ruby_version_is "1.9" do
it "returns an Array containing the argument if #to_a returns nil" do
obj = mock("Array([1,2,3])")
obj.should_receive(:to_a).and_return(nil)
@object.send(@method, obj).should == [obj]
end
end
it "returns an Array containing the argument if it responds to neither #to_ary nor #to_a" do
obj = mock("Array(x)")
@object.send(@method, obj).should == [obj]
end
it "returns an empty Array when passed nil" do
@object.send(@method, nil).should == []
end
it "raises a TypeError if #to_ary does not return an Array" do
obj = mock("Array() string")
obj.should_receive(:to_ary).and_return("string")
lambda { @object.send(@method, obj) }.should raise_error(TypeError)
end
it "raises a TypeError if #to_a does not return an Array" do
obj = mock("Array() string")
obj.should_receive(:to_a).and_return("string")
lambda { @object.send(@method, obj) }.should raise_error(TypeError)
end
end
describe "Kernel.Array" do
it_behaves_like :kernel_Array, :Array_method, KernelSpecs
end
describe "Kernel#Array" do
it_behaves_like :kernel_Array, :Array_function, KernelSpecs
end
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