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1d15d5f080
* Other ruby implementations use the spec/ruby directory. [Misc #13792] [ruby-core:82287] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
117 lines
3.6 KiB
Ruby
117 lines
3.6 KiB
Ruby
require File.expand_path('../../../spec_helper', __FILE__)
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require File.expand_path('../fixtures/classes', __FILE__)
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require File.expand_path('../shared/enumeratorize', __FILE__)
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require File.expand_path('../shared/delete_if', __FILE__)
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require File.expand_path('../../enumerable/shared/enumeratorized', __FILE__)
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describe "Array#reject" do
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it "returns a new array without elements for which block is true" do
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ary = [1, 2, 3, 4, 5]
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ary.reject { true }.should == []
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ary.reject { false }.should == ary
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ary.reject { false }.object_id.should_not == ary.object_id
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ary.reject { nil }.should == ary
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ary.reject { nil }.object_id.should_not == ary.object_id
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ary.reject { 5 }.should == []
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ary.reject { |i| i < 3 }.should == [3, 4, 5]
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ary.reject { |i| i % 2 == 0 }.should == [1, 3, 5]
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end
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it "returns self when called on an Array emptied with #shift" do
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array = [1]
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array.shift
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array.reject { |x| true }.should == []
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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.reject { false }.should == [empty]
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empty.reject { true }.should == []
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array = ArraySpecs.recursive_array
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array.reject { false }.should == [1, 'two', 3.0, array, array, array, array, array]
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array.reject { true }.should == []
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end
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it "does not return subclass instance on Array subclasses" do
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ArraySpecs::MyArray[1, 2, 3].reject { |x| x % 2 == 0 }.should be_an_instance_of(Array)
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end
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it "does not retain instance variables" do
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array = []
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array.instance_variable_set("@variable", "value")
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array.reject { false }.instance_variable_get("@variable").should == nil
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end
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it_behaves_like :enumeratorize, :reject
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it_behaves_like :enumeratorized_with_origin_size, :reject, [1,2,3]
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end
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describe "Array#reject!" do
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it "removes elements for which block is true" do
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a = [3, 4, 5, 6, 7, 8, 9, 10, 11]
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a.reject! { |i| i % 2 == 0 }.should equal(a)
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a.should == [3, 5, 7, 9, 11]
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a.reject! { |i| i > 8 }
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a.should == [3, 5, 7]
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a.reject! { |i| i < 4 }
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a.should == [5, 7]
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a.reject! { |i| i == 5 }
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a.should == [7]
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a.reject! { true }
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a.should == []
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a.reject! { true }
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a.should == []
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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_dup = empty.dup
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empty.reject! { false }.should == nil
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empty.should == empty_dup
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empty = ArraySpecs.empty_recursive_array
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empty.reject! { true }.should == []
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empty.should == []
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array = ArraySpecs.recursive_array
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array_dup = array.dup
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array.reject! { false }.should == nil
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array.should == array_dup
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array = ArraySpecs.recursive_array
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array.reject! { true }.should == []
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array.should == []
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end
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it "returns nil when called on an Array emptied with #shift" do
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array = [1]
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array.shift
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array.reject! { |x| true }.should == nil
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end
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it "returns nil if no changes are made" do
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a = [1, 2, 3]
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a.reject! { |i| i < 0 }.should == nil
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a.reject! { true }
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a.reject! { true }.should == nil
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end
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it "returns an Enumerator if no block given, and the array is frozen" do
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ArraySpecs.frozen_array.reject!.should be_an_instance_of(Enumerator)
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end
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it "raises a RuntimeError on a frozen array" do
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lambda { ArraySpecs.frozen_array.reject! {} }.should raise_error(RuntimeError)
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end
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it "raises a RuntimeError on an empty frozen array" do
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lambda { ArraySpecs.empty_frozen_array.reject! {} }.should raise_error(RuntimeError)
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end
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it_behaves_like :enumeratorize, :reject!
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it_behaves_like :enumeratorized_with_origin_size, :reject!, [1,2,3]
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it_behaves_like :delete_if, :reject!
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end
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