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80 lines
2.9 KiB
Ruby
80 lines
2.9 KiB
Ruby
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describe :array_binary_union, shared: true do
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it "returns an array of elements that appear in either array (union)" do
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[].send(@method, []).should == []
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[1, 2].send(@method, []).should == [1, 2]
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[].send(@method, [1, 2]).should == [1, 2]
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[ 1, 2, 3, 4 ].send(@method, [ 3, 4, 5 ]).should == [1, 2, 3, 4, 5]
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end
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it "creates an array with no duplicates" do
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[ 1, 2, 3, 1, 4, 5 ].send(@method, [ 1, 3, 4, 5, 3, 6 ]).should == [1, 2, 3, 4, 5, 6]
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end
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it "creates an array with elements in order they are first encountered" do
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[ 1, 2, 3, 1 ].send(@method, [ 1, 3, 4, 5 ]).should == [1, 2, 3, 4, 5]
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end
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it "properly handles recursive arrays" do
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empty = ArraySpecs.empty_recursive_array
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empty.send(@method, empty).should == empty
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array = ArraySpecs.recursive_array
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array.send(@method, []).should == [1, 'two', 3.0, array]
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[].send(@method, array).should == [1, 'two', 3.0, array]
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array.send(@method, array).should == [1, 'two', 3.0, array]
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array.send(@method, empty).should == [1, 'two', 3.0, array, empty]
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end
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it "tries to convert the passed argument to an Array using #to_ary" do
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obj = mock('[1,2,3]')
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obj.should_receive(:to_ary).and_return([1, 2, 3])
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[0].send(@method, obj).should == ([0] | [1, 2, 3])
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end
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# MRI follows hashing semantics here, so doesn't actually call eql?/hash for Fixnum/Symbol
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it "acts as if using an intermediate hash to collect values" do
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not_supported_on :opal do
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[5.0, 4.0].send(@method, [5, 4]).should == [5.0, 4.0, 5, 4]
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end
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str = "x"
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[str].send(@method, [str.dup]).should == [str]
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obj1 = mock('1')
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obj2 = mock('2')
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obj1.stub!(:hash).and_return(0)
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obj2.stub!(:hash).and_return(0)
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obj2.should_receive(:eql?).at_least(1).and_return(true)
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[obj1].send(@method, [obj2]).should == [obj1]
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[obj1, obj1, obj2, obj2].send(@method, [obj2]).should == [obj1]
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obj1 = mock('3')
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obj2 = mock('4')
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obj1.stub!(:hash).and_return(0)
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obj2.stub!(:hash).and_return(0)
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obj2.should_receive(:eql?).at_least(1).and_return(false)
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[obj1].send(@method, [obj2]).should == [obj1, obj2]
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[obj1, obj1, obj2, obj2].send(@method, [obj2]).should == [obj1, obj2]
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end
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it "does not return subclass instances for Array subclasses" do
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ArraySpecs::MyArray[1, 2, 3].send(@method, []).should be_an_instance_of(Array)
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ArraySpecs::MyArray[1, 2, 3].send(@method, ArraySpecs::MyArray[1, 2, 3]).should be_an_instance_of(Array)
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[].send(@method, ArraySpecs::MyArray[1, 2, 3]).should be_an_instance_of(Array)
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end
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it "does not call to_ary on array subclasses" do
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[1, 2].send(@method, ArraySpecs::ToAryArray[5, 6]).should == [1, 2, 5, 6]
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end
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it "properly handles an identical item even when its #eql? isn't reflexive" do
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x = mock('x')
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x.stub!(:hash).and_return(42)
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x.stub!(:eql?).and_return(false) # Stubbed for clarity and latitude in implementation; not actually sent by MRI.
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[x].send(@method, [x]).should == [x]
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end
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end
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