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Diffstat (limited to 'spec/rubyspec/core/kernel/Array_spec.rb')
-rw-r--r-- | spec/rubyspec/core/kernel/Array_spec.rb | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/spec/rubyspec/core/kernel/Array_spec.rb b/spec/rubyspec/core/kernel/Array_spec.rb new file mode 100644 index 0000000000..6031a828f6 --- /dev/null +++ b/spec/rubyspec/core/kernel/Array_spec.rb @@ -0,0 +1,97 @@ +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 + + 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 + + it "calls #to_ary first, even if it's private" do + obj = KernelSpecs::PrivateToAry.new + + @object.send(@method, obj).should == [1, 2] + end + + it "calls #to_a if #to_ary is not defined, even if it's private" do + obj = KernelSpecs::PrivateToA.new + + @object.send(@method, obj).should == [3, 4] + 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 |