2018-03-04 10:09:32 -05:00
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require_relative '../../spec_helper'
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require_relative 'fixtures/classes'
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require_relative 'shared/join'
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2017-05-07 08:04:49 -04:00
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describe "Array#*" do
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it "tries to convert the passed argument to a String using #to_str" do
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obj = mock('separator')
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obj.should_receive(:to_str).and_return('::')
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([1, 2, 3, 4] * obj).should == '1::2::3::4'
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end
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it "tires to convert the passed argument to an Integer using #to_int" do
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obj = mock('count')
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obj.should_receive(:to_int).and_return(2)
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([1, 2, 3, 4] * obj).should == [1, 2, 3, 4, 1, 2, 3, 4]
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end
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it "raises a TypeError if the argument can neither be converted to a string nor an integer" do
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obj = mock('not a string or integer')
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lambda{ [1,2] * obj }.should raise_error(TypeError)
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end
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it "converts the passed argument to a String rather than an Integer" do
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obj = mock('2')
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def obj.to_int() 2 end
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def obj.to_str() "2" end
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([:a, :b, :c] * obj).should == "a2b2c"
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end
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it "raises a TypeError is the passed argument is nil" do
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lambda{ [1,2] * nil }.should raise_error(TypeError)
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end
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it "raises an ArgumentError when passed 2 or more arguments" do
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lambda{ [1,2].send(:*, 1, 2) }.should raise_error(ArgumentError)
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end
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it "raises an ArgumentError when passed no arguments" do
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lambda{ [1,2].send(:*) }.should raise_error(ArgumentError)
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end
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end
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describe "Array#* with an integer" do
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it "concatenates n copies of the array when passed an integer" do
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([ 1, 2, 3 ] * 0).should == []
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([ 1, 2, 3 ] * 1).should == [1, 2, 3]
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([ 1, 2, 3 ] * 3).should == [1, 2, 3, 1, 2, 3, 1, 2, 3]
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([] * 10).should == []
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end
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it "does not return self even if the passed integer is 1" do
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ary = [1, 2, 3]
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(ary * 1).should_not equal(ary)
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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 * 0).should == []
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(empty * 1).should == empty
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(empty * 3).should == [empty, empty, empty]
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array = ArraySpecs.recursive_array
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(array * 0).should == []
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(array * 1).should == array
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end
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it "raises an ArgumentError when passed a negative integer" do
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lambda { [ 1, 2, 3 ] * -1 }.should raise_error(ArgumentError)
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lambda { [] * -1 }.should raise_error(ArgumentError)
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end
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describe "with a subclass of Array" do
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before :each do
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ScratchPad.clear
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@array = ArraySpecs::MyArray[1, 2, 3, 4, 5]
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end
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it "returns a subclass instance" do
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(@array * 0).should be_an_instance_of(ArraySpecs::MyArray)
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(@array * 1).should be_an_instance_of(ArraySpecs::MyArray)
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(@array * 2).should be_an_instance_of(ArraySpecs::MyArray)
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end
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it "does not call #initialize on the subclass instance" do
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(@array * 2).should == [1, 2, 3, 4, 5, 1, 2, 3, 4, 5]
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ScratchPad.recorded.should be_nil
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end
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end
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it "copies the taint status of the original array even if the passed count is 0" do
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ary = [1, 2, 3]
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ary.taint
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(ary * 0).tainted?.should == true
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end
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it "copies the taint status of the original array even if the array is empty" do
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ary = []
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ary.taint
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(ary * 3).tainted?.should == true
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end
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it "copies the taint status of the original array if the passed count is not 0" do
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ary = [1, 2, 3]
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ary.taint
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(ary * 1).tainted?.should == true
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(ary * 2).tainted?.should == true
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end
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it "copies the untrusted status of the original array even if the passed count is 0" do
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ary = [1, 2, 3]
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ary.untrust
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(ary * 0).untrusted?.should == true
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end
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it "copies the untrusted status of the original array even if the array is empty" do
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ary = []
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ary.untrust
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(ary * 3).untrusted?.should == true
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end
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it "copies the untrusted status of the original array if the passed count is not 0" do
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ary = [1, 2, 3]
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ary.untrust
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(ary * 1).untrusted?.should == true
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(ary * 2).untrusted?.should == true
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end
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end
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describe "Array#* with a string" do
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it_behaves_like :array_join_with_string_separator, :*
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end
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