diff options
Diffstat (limited to 'spec/ruby/core/array/plus_spec.rb')
-rw-r--r-- | spec/ruby/core/array/plus_spec.rb | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/spec/ruby/core/array/plus_spec.rb b/spec/ruby/core/array/plus_spec.rb new file mode 100644 index 0000000000..4517087550 --- /dev/null +++ b/spec/ruby/core/array/plus_spec.rb @@ -0,0 +1,57 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require File.expand_path('../fixtures/classes', __FILE__) + +describe "Array#+" do + it "concatenates two arrays" do + ([ 1, 2, 3 ] + [ 3, 4, 5 ]).should == [1, 2, 3, 3, 4, 5] + ([ 1, 2, 3 ] + []).should == [1, 2, 3] + ([] + [ 1, 2, 3 ]).should == [1, 2, 3] + ([] + []).should == [] + end + + it "can concatenate an array with itself" do + ary = [1, 2, 3] + (ary + ary).should == [1, 2, 3, 1, 2, 3] + end + + it "tries to convert the passed argument to an Array using #to_ary" do + obj = mock('["x", "y"]') + obj.should_receive(:to_ary).and_return(["x", "y"]) + ([1, 2, 3] + obj).should == [1, 2, 3, "x", "y"] + end + + it "properly handles recursive arrays" do + empty = ArraySpecs.empty_recursive_array + (empty + empty).should == [empty, empty] + + array = ArraySpecs.recursive_array + (empty + array).should == [empty, 1, 'two', 3.0, array, array, array, array, array] + (array + array).should == [ + 1, 'two', 3.0, array, array, array, array, array, + 1, 'two', 3.0, array, array, array, array, array] + end + + it "does return subclass instances with Array subclasses" do + (ArraySpecs::MyArray[1, 2, 3] + []).should be_an_instance_of(Array) + (ArraySpecs::MyArray[1, 2, 3] + ArraySpecs::MyArray[]).should be_an_instance_of(Array) + ([1, 2, 3] + ArraySpecs::MyArray[]).should be_an_instance_of(Array) + end + + it "does not call to_ary on array subclasses" do + ([5, 6] + ArraySpecs::ToAryArray[1, 2]).should == [5, 6, 1, 2] + end + + it "does not get infected even if an original array is tainted" do + ([1, 2] + [3, 4]).tainted?.should be_false + ([1, 2].taint + [3, 4]).tainted?.should be_false + ([1, 2] + [3, 4].taint).tainted?.should be_false + ([1, 2].taint + [3, 4].taint).tainted?.should be_false + end + + it "does not infected even if an original array is untrusted" do + ([1, 2] + [3, 4]).untrusted?.should be_false + ([1, 2].untrust + [3, 4]).untrusted?.should be_false + ([1, 2] + [3, 4].untrust).untrusted?.should be_false + ([1, 2].untrust + [3, 4].untrust).untrusted?.should be_false + end +end |